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bundle msgpack 0.5.6 "as is" as borg._msgpack

Thomas Waldmann 6 năm trước cách đây
mục cha
commit
383807aed7

+ 66 - 0
src/borg/_msgpack/__init__.py

@@ -0,0 +1,66 @@
+# coding: utf-8
+from msgpack._version import version
+from msgpack.exceptions import *
+
+from collections import namedtuple
+
+
+class ExtType(namedtuple('ExtType', 'code data')):
+    """ExtType represents ext type in msgpack."""
+    def __new__(cls, code, data):
+        if not isinstance(code, int):
+            raise TypeError("code must be int")
+        if not isinstance(data, bytes):
+            raise TypeError("data must be bytes")
+        if not 0 <= code <= 127:
+            raise ValueError("code must be 0~127")
+        return super(ExtType, cls).__new__(cls, code, data)
+
+
+import os
+if os.environ.get('MSGPACK_PUREPYTHON'):
+    from msgpack.fallback import Packer, unpackb, Unpacker
+else:
+    try:
+        from msgpack._packer import Packer
+        from msgpack._unpacker import unpackb, Unpacker
+    except ImportError:
+        from msgpack.fallback import Packer, unpackb, Unpacker
+
+
+def pack(o, stream, **kwargs):
+    """
+    Pack object `o` and write it to `stream`
+
+    See :class:`Packer` for options.
+    """
+    packer = Packer(**kwargs)
+    stream.write(packer.pack(o))
+
+
+def packb(o, **kwargs):
+    """
+    Pack object `o` and return packed bytes
+
+    See :class:`Packer` for options.
+    """
+    return Packer(**kwargs).pack(o)
+
+
+def unpack(stream, **kwargs):
+    """
+    Unpack an object from `stream`.
+
+    Raises `ExtraData` when `stream` contains extra bytes.
+    See :class:`Unpacker` for options.
+    """
+    data = stream.read()
+    return unpackb(data, **kwargs)
+
+
+# alias for compatibility to simplejson/marshal/pickle.
+load = unpack
+loads = unpackb
+
+dump = pack
+dumps = packb

+ 9324 - 0
src/borg/_msgpack/_packer.cpp

@@ -0,0 +1,9324 @@
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+
+#define PY_SSIZE_T_CLEAN
+#include "Python.h"
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+  #undef CYTHON_PEP489_MULTI_PHASE_INIT
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+  #define CYTHON_USE_TP_FINALIZE 0
+#elif defined(PYSTON_VERSION)
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+  #define CYTHON_COMPILING_IN_PYSTON 1
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+  #undef CYTHON_USE_ASYNC_SLOTS
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+  #undef CYTHON_USE_PYLIST_INTERNALS
+  #define CYTHON_USE_PYLIST_INTERNALS 0
+  #ifndef CYTHON_USE_UNICODE_INTERNALS
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+  #undef CYTHON_USE_PYLONG_INTERNALS
+  #define CYTHON_USE_PYLONG_INTERNALS 0
+  #ifndef CYTHON_AVOID_BORROWED_REFS
+    #define CYTHON_AVOID_BORROWED_REFS 0
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+  #ifndef CYTHON_ASSUME_SAFE_MACROS
+    #define CYTHON_ASSUME_SAFE_MACROS 1
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+    #define CYTHON_UNPACK_METHODS 1
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+  #undef CYTHON_FAST_THREAD_STATE
+  #define CYTHON_FAST_THREAD_STATE 0
+  #undef CYTHON_FAST_PYCALL
+  #define CYTHON_FAST_PYCALL 0
+  #undef CYTHON_PEP489_MULTI_PHASE_INIT
+  #define CYTHON_PEP489_MULTI_PHASE_INIT 0
+  #undef CYTHON_USE_TP_FINALIZE
+  #define CYTHON_USE_TP_FINALIZE 0
+#else
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+  #define CYTHON_COMPILING_IN_PYSTON 0
+  #define CYTHON_COMPILING_IN_CPYTHON 1
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+    #define CYTHON_USE_TYPE_SLOTS 1
+  #endif
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+    #define CYTHON_USE_PYTYPE_LOOKUP 0
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+    #define CYTHON_USE_UNICODE_WRITER 0
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+#define CYTHON_FORMAT_SSIZE_T "z"
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+          PyCode_New(a+k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
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+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
+          PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
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+  typedef PyObject *(*__Pyx_PyCFunctionFastWithKeywords) (PyObject *self, PyObject **args,
+                                                          Py_ssize_t nargs, PyObject *kwnames);
+#else
+  #define __Pyx_PyCFunctionFast _PyCFunctionFast
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+#endif
+#if CYTHON_FAST_PYCCALL
+#define __Pyx_PyFastCFunction_Check(func)\
+    ((PyCFunction_Check(func) && (METH_FASTCALL == (PyCFunction_GET_FLAGS(func) & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS)))))
+#else
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+# else
+#   define CYTHON_UNUSED
+# endif
+#endif
+#ifndef CYTHON_MAYBE_UNUSED_VAR
+#  if defined(__cplusplus)
+     template<class T> void CYTHON_MAYBE_UNUSED_VAR( const T& ) { }
+#  else
+#    define CYTHON_MAYBE_UNUSED_VAR(x) (void)(x)
+#  endif
+#endif
+#ifndef CYTHON_NCP_UNUSED
+# if CYTHON_COMPILING_IN_CPYTHON
+#  define CYTHON_NCP_UNUSED
+# else
+#  define CYTHON_NCP_UNUSED CYTHON_UNUSED
+# endif
+#endif
+#define __Pyx_void_to_None(void_result) ((void)(void_result), Py_INCREF(Py_None), Py_None)
+#ifdef _MSC_VER
+    #ifndef _MSC_STDINT_H_
+        #if _MSC_VER < 1300
+           typedef unsigned char     uint8_t;
+           typedef unsigned int      uint32_t;
+        #else
+           typedef unsigned __int8   uint8_t;
+           typedef unsigned __int32  uint32_t;
+        #endif
+    #endif
+#else
+   #include <stdint.h>
+#endif
+#ifndef CYTHON_FALLTHROUGH
+  #if defined(__cplusplus) && __cplusplus >= 201103L
+    #if __has_cpp_attribute(fallthrough)
+      #define CYTHON_FALLTHROUGH [[fallthrough]]
+    #elif __has_cpp_attribute(clang::fallthrough)
+      #define CYTHON_FALLTHROUGH [[clang::fallthrough]]
+    #elif __has_cpp_attribute(gnu::fallthrough)
+      #define CYTHON_FALLTHROUGH [[gnu::fallthrough]]
+    #endif
+  #endif
+  #ifndef CYTHON_FALLTHROUGH
+    #if __has_attribute(fallthrough)
+      #define CYTHON_FALLTHROUGH __attribute__((fallthrough))
+    #else
+      #define CYTHON_FALLTHROUGH
+    #endif
+  #endif
+  #if defined(__clang__ ) && defined(__apple_build_version__)
+    #if __apple_build_version__ < 7000000
+      #undef  CYTHON_FALLTHROUGH
+      #define CYTHON_FALLTHROUGH
+    #endif
+  #endif
+#endif
+
+#ifndef __cplusplus
+  #error "Cython files generated with the C++ option must be compiled with a C++ compiler."
+#endif
+#ifndef CYTHON_INLINE
+  #if defined(__clang__)
+    #define CYTHON_INLINE __inline__ __attribute__ ((__unused__))
+  #else
+    #define CYTHON_INLINE inline
+  #endif
+#endif
+template<typename T>
+void __Pyx_call_destructor(T& x) {
+    x.~T();
+}
+template<typename T>
+class __Pyx_FakeReference {
+  public:
+    __Pyx_FakeReference() : ptr(NULL) { }
+    __Pyx_FakeReference(const T& ref) : ptr(const_cast<T*>(&ref)) { }
+    T *operator->() { return ptr; }
+    T *operator&() { return ptr; }
+    operator T&() { return *ptr; }
+    template<typename U> bool operator ==(U other) { return *ptr == other; }
+    template<typename U> bool operator !=(U other) { return *ptr != other; }
+  private:
+    T *ptr;
+};
+
+#if defined(WIN32) || defined(MS_WINDOWS)
+  #define _USE_MATH_DEFINES
+#endif
+#include <math.h>
+#ifdef NAN
+#define __PYX_NAN() ((float) NAN)
+#else
+static CYTHON_INLINE float __PYX_NAN() {
+  float value;
+  memset(&value, 0xFF, sizeof(value));
+  return value;
+}
+#endif
+#if defined(__CYGWIN__) && defined(_LDBL_EQ_DBL)
+#define __Pyx_truncl trunc
+#else
+#define __Pyx_truncl truncl
+#endif
+
+
+#define __PYX_ERR(f_index, lineno, Ln_error) \
+{ \
+  __pyx_filename = __pyx_f[f_index]; __pyx_lineno = lineno; __pyx_clineno = __LINE__; goto Ln_error; \
+}
+
+#ifndef __PYX_EXTERN_C
+  #ifdef __cplusplus
+    #define __PYX_EXTERN_C extern "C"
+  #else
+    #define __PYX_EXTERN_C extern
+  #endif
+#endif
+
+#define __PYX_HAVE__msgpack___packer
+#define __PYX_HAVE_API__msgpack___packer
+#include <string.h>
+#include <stdio.h>
+#include "pythread.h"
+#include "pack.h"
+#ifdef _OPENMP
+#include <omp.h>
+#endif /* _OPENMP */
+
+#if defined(PYREX_WITHOUT_ASSERTIONS) && !defined(CYTHON_WITHOUT_ASSERTIONS)
+#define CYTHON_WITHOUT_ASSERTIONS
+#endif
+
+typedef struct {PyObject **p; const char *s; const Py_ssize_t n; const char* encoding;
+                const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;
+
+#define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 1
+#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0
+#define __PYX_DEFAULT_STRING_ENCODING "ascii"
+#define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
+#define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#define __Pyx_uchar_cast(c) ((unsigned char)c)
+#define __Pyx_long_cast(x) ((long)x)
+#define __Pyx_fits_Py_ssize_t(v, type, is_signed)  (\
+    (sizeof(type) < sizeof(Py_ssize_t))  ||\
+    (sizeof(type) > sizeof(Py_ssize_t) &&\
+          likely(v < (type)PY_SSIZE_T_MAX ||\
+                 v == (type)PY_SSIZE_T_MAX)  &&\
+          (!is_signed || likely(v > (type)PY_SSIZE_T_MIN ||\
+                                v == (type)PY_SSIZE_T_MIN)))  ||\
+    (sizeof(type) == sizeof(Py_ssize_t) &&\
+          (is_signed || likely(v < (type)PY_SSIZE_T_MAX ||\
+                               v == (type)PY_SSIZE_T_MAX)))  )
+#if defined (__cplusplus) && __cplusplus >= 201103L
+    #include <cstdlib>
+    #define __Pyx_sst_abs(value) std::abs(value)
+#elif SIZEOF_INT >= SIZEOF_SIZE_T
+    #define __Pyx_sst_abs(value) abs(value)
+#elif SIZEOF_LONG >= SIZEOF_SIZE_T
+    #define __Pyx_sst_abs(value) labs(value)
+#elif defined (_MSC_VER)
+    #define __Pyx_sst_abs(value) ((Py_ssize_t)_abs64(value))
+#elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define __Pyx_sst_abs(value) llabs(value)
+#elif defined (__GNUC__)
+    #define __Pyx_sst_abs(value) __builtin_llabs(value)
+#else
+    #define __Pyx_sst_abs(value) ((value<0) ? -value : value)
+#endif
+static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject*);
+static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length);
+#define __Pyx_PyByteArray_FromString(s) PyByteArray_FromStringAndSize((const char*)s, strlen((const char*)s))
+#define __Pyx_PyByteArray_FromStringAndSize(s, l) PyByteArray_FromStringAndSize((const char*)s, l)
+#define __Pyx_PyBytes_FromString        PyBytes_FromString
+#define __Pyx_PyBytes_FromStringAndSize PyBytes_FromStringAndSize
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*);
+#if PY_MAJOR_VERSION < 3
+    #define __Pyx_PyStr_FromString        __Pyx_PyBytes_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#else
+    #define __Pyx_PyStr_FromString        __Pyx_PyUnicode_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyUnicode_FromStringAndSize
+#endif
+#define __Pyx_PyBytes_AsWritableString(s)     ((char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsWritableSString(s)    ((signed char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsWritableUString(s)    ((unsigned char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsString(s)     ((const char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsSString(s)    ((const signed char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsUString(s)    ((const unsigned char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyObject_AsWritableString(s)    ((char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsWritableSString(s)    ((signed char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsWritableUString(s)    ((unsigned char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsSString(s)    ((const signed char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsUString(s)    ((const unsigned char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_FromCString(s)  __Pyx_PyObject_FromString((const char*)s)
+#define __Pyx_PyBytes_FromCString(s)   __Pyx_PyBytes_FromString((const char*)s)
+#define __Pyx_PyByteArray_FromCString(s)   __Pyx_PyByteArray_FromString((const char*)s)
+#define __Pyx_PyStr_FromCString(s)     __Pyx_PyStr_FromString((const char*)s)
+#define __Pyx_PyUnicode_FromCString(s) __Pyx_PyUnicode_FromString((const char*)s)
+static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u) {
+    const Py_UNICODE *u_end = u;
+    while (*u_end++) ;
+    return (size_t)(u_end - u - 1);
+}
+#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
+#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode
+#define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
+#define __Pyx_NewRef(obj) (Py_INCREF(obj), obj)
+#define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None)
+#define __Pyx_PyBool_FromLong(b) ((b) ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False))
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x);
+#define __Pyx_PySequence_Tuple(obj)\
+    (likely(PyTuple_CheckExact(obj)) ? __Pyx_NewRef(obj) : PySequence_Tuple(obj))
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
+#if CYTHON_ASSUME_SAFE_MACROS
+#define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x))
+#else
+#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x)
+#endif
+#define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x))
+#if PY_MAJOR_VERSION >= 3
+#define __Pyx_PyNumber_Int(x) (PyLong_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Long(x))
+#else
+#define __Pyx_PyNumber_Int(x) (PyInt_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Int(x))
+#endif
+#define __Pyx_PyNumber_Float(x) (PyFloat_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Float(x))
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+static int __Pyx_sys_getdefaultencoding_not_ascii;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    PyObject* ascii_chars_u = NULL;
+    PyObject* ascii_chars_b = NULL;
+    const char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    if (strcmp(default_encoding_c, "ascii") == 0) {
+        __Pyx_sys_getdefaultencoding_not_ascii = 0;
+    } else {
+        char ascii_chars[128];
+        int c;
+        for (c = 0; c < 128; c++) {
+            ascii_chars[c] = c;
+        }
+        __Pyx_sys_getdefaultencoding_not_ascii = 1;
+        ascii_chars_u = PyUnicode_DecodeASCII(ascii_chars, 128, NULL);
+        if (!ascii_chars_u) goto bad;
+        ascii_chars_b = PyUnicode_AsEncodedString(ascii_chars_u, default_encoding_c, NULL);
+        if (!ascii_chars_b || !PyBytes_Check(ascii_chars_b) || memcmp(ascii_chars, PyBytes_AS_STRING(ascii_chars_b), 128) != 0) {
+            PyErr_Format(
+                PyExc_ValueError,
+                "This module compiled with c_string_encoding=ascii, but default encoding '%.200s' is not a superset of ascii.",
+                default_encoding_c);
+            goto bad;
+        }
+        Py_DECREF(ascii_chars_u);
+        Py_DECREF(ascii_chars_b);
+    }
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    Py_XDECREF(ascii_chars_u);
+    Py_XDECREF(ascii_chars_b);
+    return -1;
+}
+#endif
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT && PY_MAJOR_VERSION >= 3
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_DecodeUTF8(c_str, size, NULL)
+#else
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_Decode(c_str, size, __PYX_DEFAULT_STRING_ENCODING, NULL)
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+static char* __PYX_DEFAULT_STRING_ENCODING;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    __PYX_DEFAULT_STRING_ENCODING = (char*) malloc(strlen(default_encoding_c));
+    if (!__PYX_DEFAULT_STRING_ENCODING) goto bad;
+    strcpy(__PYX_DEFAULT_STRING_ENCODING, default_encoding_c);
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    return -1;
+}
+#endif
+#endif
+
+
+/* Test for GCC > 2.95 */
+#if defined(__GNUC__)     && (__GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95)))
+  #define likely(x)   __builtin_expect(!!(x), 1)
+  #define unlikely(x) __builtin_expect(!!(x), 0)
+#else /* !__GNUC__ or GCC < 2.95 */
+  #define likely(x)   (x)
+  #define unlikely(x) (x)
+#endif /* __GNUC__ */
+static CYTHON_INLINE void __Pyx_pretend_to_initialize(void* ptr) { (void)ptr; }
+
+static PyObject *__pyx_m = NULL;
+static PyObject *__pyx_d;
+static PyObject *__pyx_b;
+static PyObject *__pyx_cython_runtime;
+static PyObject *__pyx_empty_tuple;
+static PyObject *__pyx_empty_bytes;
+static PyObject *__pyx_empty_unicode;
+static int __pyx_lineno;
+static int __pyx_clineno = 0;
+static const char * __pyx_cfilenm= __FILE__;
+static const char *__pyx_filename;
+
+
+static const char *__pyx_f[] = {
+  "msgpack/_packer.pyx",
+  "stringsource",
+  "type.pxd",
+  "bool.pxd",
+  "complex.pxd",
+};
+
+/*--- Type declarations ---*/
+struct __pyx_obj_7msgpack_7_packer_Packer;
+struct __pyx_opt_args_7msgpack_7_packer_6Packer__pack;
+
+/* "msgpack/_packer.pyx":150
+ *         self.pk.buf = NULL
+ * 
+ *     cdef int _pack(self, object o, int nest_limit=DEFAULT_RECURSE_LIMIT) except -1:             # <<<<<<<<<<<<<<
+ *         cdef long long llval
+ *         cdef unsigned long long ullval
+ */
+struct __pyx_opt_args_7msgpack_7_packer_6Packer__pack {
+  int __pyx_n;
+  int nest_limit;
+};
+
+/* "msgpack/_packer.pyx":56
+ * 
+ * 
+ * cdef class Packer(object):             # <<<<<<<<<<<<<<
+ *     """
+ *     MessagePack Packer
+ */
+struct __pyx_obj_7msgpack_7_packer_Packer {
+  PyObject_HEAD
+  struct __pyx_vtabstruct_7msgpack_7_packer_Packer *__pyx_vtab;
+  struct msgpack_packer pk;
+  PyObject *_default;
+  PyObject *_bencoding;
+  PyObject *_berrors;
+  char const *encoding;
+  char const *unicode_errors;
+  int strict_types;
+  PyBoolObject *use_float;
+  int autoreset;
+};
+
+
+
+struct __pyx_vtabstruct_7msgpack_7_packer_Packer {
+  int (*_pack)(struct __pyx_obj_7msgpack_7_packer_Packer *, PyObject *, struct __pyx_opt_args_7msgpack_7_packer_6Packer__pack *__pyx_optional_args);
+  PyObject *(*pack)(struct __pyx_obj_7msgpack_7_packer_Packer *, PyObject *, int __pyx_skip_dispatch);
+};
+static struct __pyx_vtabstruct_7msgpack_7_packer_Packer *__pyx_vtabptr_7msgpack_7_packer_Packer;
+
+/* --- Runtime support code (head) --- */
+/* Refnanny.proto */
+#ifndef CYTHON_REFNANNY
+  #define CYTHON_REFNANNY 0
+#endif
+#if CYTHON_REFNANNY
+  typedef struct {
+    void (*INCREF)(void*, PyObject*, int);
+    void (*DECREF)(void*, PyObject*, int);
+    void (*GOTREF)(void*, PyObject*, int);
+    void (*GIVEREF)(void*, PyObject*, int);
+    void* (*SetupContext)(const char*, int, const char*);
+    void (*FinishContext)(void**);
+  } __Pyx_RefNannyAPIStruct;
+  static __Pyx_RefNannyAPIStruct *__Pyx_RefNanny = NULL;
+  static __Pyx_RefNannyAPIStruct *__Pyx_RefNannyImportAPI(const char *modname);
+  #define __Pyx_RefNannyDeclarations void *__pyx_refnanny = NULL;
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+  #define __Pyx_RefNannySetupContext(name, acquire_gil)\
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+              PyGILState_Release(__pyx_gilstate_save);\
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+#else
+  #define __Pyx_RefNannySetupContext(name, acquire_gil)\
+          __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__)
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+  #define __Pyx_RefNannyFinishContext()\
+          __Pyx_RefNanny->FinishContext(&__pyx_refnanny)
+  #define __Pyx_INCREF(r)  __Pyx_RefNanny->INCREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_DECREF(r)  __Pyx_RefNanny->DECREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_GOTREF(r)  __Pyx_RefNanny->GOTREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_GIVEREF(r) __Pyx_RefNanny->GIVEREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_XINCREF(r)  do { if((r) != NULL) {__Pyx_INCREF(r); }} while(0)
+  #define __Pyx_XDECREF(r)  do { if((r) != NULL) {__Pyx_DECREF(r); }} while(0)
+  #define __Pyx_XGOTREF(r)  do { if((r) != NULL) {__Pyx_GOTREF(r); }} while(0)
+  #define __Pyx_XGIVEREF(r) do { if((r) != NULL) {__Pyx_GIVEREF(r);}} while(0)
+#else
+  #define __Pyx_RefNannyDeclarations
+  #define __Pyx_RefNannySetupContext(name, acquire_gil)
+  #define __Pyx_RefNannyFinishContext()
+  #define __Pyx_INCREF(r) Py_INCREF(r)
+  #define __Pyx_DECREF(r) Py_DECREF(r)
+  #define __Pyx_GOTREF(r)
+  #define __Pyx_GIVEREF(r)
+  #define __Pyx_XINCREF(r) Py_XINCREF(r)
+  #define __Pyx_XDECREF(r) Py_XDECREF(r)
+  #define __Pyx_XGOTREF(r)
+  #define __Pyx_XGIVEREF(r)
+#endif
+#define __Pyx_XDECREF_SET(r, v) do {\
+        PyObject *tmp = (PyObject *) r;\
+        r = v; __Pyx_XDECREF(tmp);\
+    } while (0)
+#define __Pyx_DECREF_SET(r, v) do {\
+        PyObject *tmp = (PyObject *) r;\
+        r = v; __Pyx_DECREF(tmp);\
+    } while (0)
+#define __Pyx_CLEAR(r)    do { PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);} while(0)
+#define __Pyx_XCLEAR(r)   do { if((r) != NULL) {PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);}} while(0)
+
+/* PyObjectGetAttrStr.proto */
+#if CYTHON_USE_TYPE_SLOTS
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name) {
+    PyTypeObject* tp = Py_TYPE(obj);
+    if (likely(tp->tp_getattro))
+        return tp->tp_getattro(obj, attr_name);
+#if PY_MAJOR_VERSION < 3
+    if (likely(tp->tp_getattr))
+        return tp->tp_getattr(obj, PyString_AS_STRING(attr_name));
+#endif
+    return PyObject_GetAttr(obj, attr_name);
+}
+#else
+#define __Pyx_PyObject_GetAttrStr(o,n) PyObject_GetAttr(o,n)
+#endif
+
+/* GetBuiltinName.proto */
+static PyObject *__Pyx_GetBuiltinName(PyObject *name);
+
+/* RaiseArgTupleInvalid.proto */
+static void __Pyx_RaiseArgtupleInvalid(const char* func_name, int exact,
+    Py_ssize_t num_min, Py_ssize_t num_max, Py_ssize_t num_found);
+
+/* KeywordStringCheck.proto */
+static int __Pyx_CheckKeywordStrings(PyObject *kwdict, const char* function_name, int kw_allowed);
+
+/* PyObjectCall.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw);
+#else
+#define __Pyx_PyObject_Call(func, arg, kw) PyObject_Call(func, arg, kw)
+#endif
+
+/* PyThreadStateGet.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_PyThreadState_declare  PyThreadState *__pyx_tstate;
+#define __Pyx_PyThreadState_assign  __pyx_tstate = __Pyx_PyThreadState_Current;
+#define __Pyx_PyErr_Occurred()  __pyx_tstate->curexc_type
+#else
+#define __Pyx_PyThreadState_declare
+#define __Pyx_PyThreadState_assign
+#define __Pyx_PyErr_Occurred()  PyErr_Occurred()
+#endif
+
+/* PyErrFetchRestore.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_PyErr_Clear() __Pyx_ErrRestore(NULL, NULL, NULL)
+#define __Pyx_ErrRestoreWithState(type, value, tb)  __Pyx_ErrRestoreInState(PyThreadState_GET(), type, value, tb)
+#define __Pyx_ErrFetchWithState(type, value, tb)    __Pyx_ErrFetchInState(PyThreadState_GET(), type, value, tb)
+#define __Pyx_ErrRestore(type, value, tb)  __Pyx_ErrRestoreInState(__pyx_tstate, type, value, tb)
+#define __Pyx_ErrFetch(type, value, tb)    __Pyx_ErrFetchInState(__pyx_tstate, type, value, tb)
+static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb);
+static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb);
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __Pyx_PyErr_SetNone(exc) (Py_INCREF(exc), __Pyx_ErrRestore((exc), NULL, NULL))
+#else
+#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc)
+#endif
+#else
+#define __Pyx_PyErr_Clear() PyErr_Clear()
+#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc)
+#define __Pyx_ErrRestoreWithState(type, value, tb)  PyErr_Restore(type, value, tb)
+#define __Pyx_ErrFetchWithState(type, value, tb)  PyErr_Fetch(type, value, tb)
+#define __Pyx_ErrRestoreInState(tstate, type, value, tb)  PyErr_Restore(type, value, tb)
+#define __Pyx_ErrFetchInState(tstate, type, value, tb)  PyErr_Fetch(type, value, tb)
+#define __Pyx_ErrRestore(type, value, tb)  PyErr_Restore(type, value, tb)
+#define __Pyx_ErrFetch(type, value, tb)  PyErr_Fetch(type, value, tb)
+#endif
+
+/* RaiseException.proto */
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
+
+/* RaiseDoubleKeywords.proto */
+static void __Pyx_RaiseDoubleKeywordsError(const char* func_name, PyObject* kw_name);
+
+/* ParseKeywords.proto */
+static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[],\
+    PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args,\
+    const char* function_name);
+
+/* ExtTypeTest.proto */
+static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type);
+
+/* GetModuleGlobalName.proto */
+static CYTHON_INLINE PyObject *__Pyx_GetModuleGlobalName(PyObject *name);
+
+/* SaveResetException.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_ExceptionSave(type, value, tb)  __Pyx__ExceptionSave(__pyx_tstate, type, value, tb)
+static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb);
+#define __Pyx_ExceptionReset(type, value, tb)  __Pyx__ExceptionReset(__pyx_tstate, type, value, tb)
+static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb);
+#else
+#define __Pyx_ExceptionSave(type, value, tb)   PyErr_GetExcInfo(type, value, tb)
+#define __Pyx_ExceptionReset(type, value, tb)  PyErr_SetExcInfo(type, value, tb)
+#endif
+
+/* PyErrExceptionMatches.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_PyErr_ExceptionMatches(err) __Pyx_PyErr_ExceptionMatchesInState(__pyx_tstate, err)
+static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err);
+#else
+#define __Pyx_PyErr_ExceptionMatches(err)  PyErr_ExceptionMatches(err)
+#endif
+
+/* GetException.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_GetException(type, value, tb)  __Pyx__GetException(__pyx_tstate, type, value, tb)
+static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb);
+#else
+static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb);
+#endif
+
+/* PyCFunctionFastCall.proto */
+#if CYTHON_FAST_PYCCALL
+static CYTHON_INLINE PyObject *__Pyx_PyCFunction_FastCall(PyObject *func, PyObject **args, Py_ssize_t nargs);
+#else
+#define __Pyx_PyCFunction_FastCall(func, args, nargs)  (assert(0), NULL)
+#endif
+
+/* PyFunctionFastCall.proto */
+#if CYTHON_FAST_PYCALL
+#define __Pyx_PyFunction_FastCall(func, args, nargs)\
+    __Pyx_PyFunction_FastCallDict((func), (args), (nargs), NULL)
+#if 1 || PY_VERSION_HEX < 0x030600B1
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs);
+#else
+#define __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs) _PyFunction_FastCallDict(func, args, nargs, kwargs)
+#endif
+#endif
+
+/* PyObjectCallMethO.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg);
+#endif
+
+/* PyObjectCallOneArg.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);
+
+/* IterFinish.proto */
+static CYTHON_INLINE int __Pyx_IterFinish(void);
+
+/* PyObjectCallNoArg.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func);
+#else
+#define __Pyx_PyObject_CallNoArg(func) __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL)
+#endif
+
+/* PyObjectCallMethod0.proto */
+static PyObject* __Pyx_PyObject_CallMethod0(PyObject* obj, PyObject* method_name);
+
+/* RaiseNeedMoreValuesToUnpack.proto */
+static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index);
+
+/* RaiseTooManyValuesToUnpack.proto */
+static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected);
+
+/* UnpackItemEndCheck.proto */
+static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected);
+
+/* RaiseNoneIterError.proto */
+static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void);
+
+/* UnpackTupleError.proto */
+static void __Pyx_UnpackTupleError(PyObject *, Py_ssize_t index);
+
+/* UnpackTuple2.proto */
+#define __Pyx_unpack_tuple2(tuple, value1, value2, is_tuple, has_known_size, decref_tuple)\
+    (likely(is_tuple || PyTuple_Check(tuple)) ?\
+        (likely(has_known_size || PyTuple_GET_SIZE(tuple) == 2) ?\
+            __Pyx_unpack_tuple2_exact(tuple, value1, value2, decref_tuple) :\
+            (__Pyx_UnpackTupleError(tuple, 2), -1)) :\
+        __Pyx_unpack_tuple2_generic(tuple, value1, value2, has_known_size, decref_tuple))
+static CYTHON_INLINE int __Pyx_unpack_tuple2_exact(
+    PyObject* tuple, PyObject** value1, PyObject** value2, int decref_tuple);
+static int __Pyx_unpack_tuple2_generic(
+    PyObject* tuple, PyObject** value1, PyObject** value2, int has_known_size, int decref_tuple);
+
+/* dict_iter.proto */
+static CYTHON_INLINE PyObject* __Pyx_dict_iterator(PyObject* dict, int is_dict, PyObject* method_name,
+                                                   Py_ssize_t* p_orig_length, int* p_is_dict);
+static CYTHON_INLINE int __Pyx_dict_iter_next(PyObject* dict_or_iter, Py_ssize_t orig_length, Py_ssize_t* ppos,
+                                              PyObject** pkey, PyObject** pvalue, PyObject** pitem, int is_dict);
+
+/* SetVTable.proto */
+static int __Pyx_SetVtable(PyObject *dict, void *vtable);
+
+/* SetupReduce.proto */
+static int __Pyx_setup_reduce(PyObject* type_obj);
+
+/* Import.proto */
+static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level);
+
+/* ImportFrom.proto */
+static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name);
+
+/* CLineInTraceback.proto */
+#ifdef CYTHON_CLINE_IN_TRACEBACK
+#define __Pyx_CLineForTraceback(tstate, c_line)  (((CYTHON_CLINE_IN_TRACEBACK)) ? c_line : 0)
+#else
+static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line);
+#endif
+
+/* CodeObjectCache.proto */
+typedef struct {
+    PyCodeObject* code_object;
+    int code_line;
+} __Pyx_CodeObjectCacheEntry;
+struct __Pyx_CodeObjectCache {
+    int count;
+    int max_count;
+    __Pyx_CodeObjectCacheEntry* entries;
+};
+static struct __Pyx_CodeObjectCache __pyx_code_cache = {0,0,NULL};
+static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line);
+static PyCodeObject *__pyx_find_code_object(int code_line);
+static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object);
+
+/* AddTraceback.proto */
+static void __Pyx_AddTraceback(const char *funcname, int c_line,
+                               int py_line, const char *filename);
+
+/* CIntToPy.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value);
+
+/* CIntFromPy.proto */
+static CYTHON_INLINE PY_LONG_LONG __Pyx_PyInt_As_PY_LONG_LONG(PyObject *);
+
+/* CIntFromPy.proto */
+static CYTHON_INLINE unsigned PY_LONG_LONG __Pyx_PyInt_As_unsigned_PY_LONG_LONG(PyObject *);
+
+/* CIntFromPy.proto */
+static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *);
+
+/* CIntFromPy.proto */
+static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *);
+
+/* CIntToPy.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
+
+/* CIntFromPy.proto */
+static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
+
+/* FastTypeChecks.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __Pyx_TypeCheck(obj, type) __Pyx_IsSubtype(Py_TYPE(obj), (PyTypeObject *)type)
+static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b);
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject *type);
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *type1, PyObject *type2);
+#else
+#define __Pyx_TypeCheck(obj, type) PyObject_TypeCheck(obj, (PyTypeObject *)type)
+#define __Pyx_PyErr_GivenExceptionMatches(err, type) PyErr_GivenExceptionMatches(err, type)
+#define __Pyx_PyErr_GivenExceptionMatches2(err, type1, type2) (PyErr_GivenExceptionMatches(err, type1) || PyErr_GivenExceptionMatches(err, type2))
+#endif
+
+/* CheckBinaryVersion.proto */
+static int __Pyx_check_binary_version(void);
+
+/* PyIdentifierFromString.proto */
+#if !defined(__Pyx_PyIdentifier_FromString)
+#if PY_MAJOR_VERSION < 3
+  #define __Pyx_PyIdentifier_FromString(s) PyString_FromString(s)
+#else
+  #define __Pyx_PyIdentifier_FromString(s) PyUnicode_FromString(s)
+#endif
+#endif
+
+/* ModuleImport.proto */
+static PyObject *__Pyx_ImportModule(const char *name);
+
+/* TypeImport.proto */
+static PyTypeObject *__Pyx_ImportType(const char *module_name, const char *class_name, size_t size, int strict);
+
+/* InitStrings.proto */
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t);
+
+static int __pyx_f_7msgpack_7_packer_6Packer__pack(struct __pyx_obj_7msgpack_7_packer_Packer *__pyx_v_self, PyObject *__pyx_v_o, struct __pyx_opt_args_7msgpack_7_packer_6Packer__pack *__pyx_optional_args); /* proto*/
+static PyObject *__pyx_f_7msgpack_7_packer_6Packer_pack(struct __pyx_obj_7msgpack_7_packer_Packer *__pyx_v_self, PyObject *__pyx_v_obj, int __pyx_skip_dispatch); /* proto*/
+
+/* Module declarations from 'cpython.version' */
+
+/* Module declarations from '__builtin__' */
+
+/* Module declarations from 'cpython.type' */
+static PyTypeObject *__pyx_ptype_7cpython_4type_type = 0;
+
+/* Module declarations from 'libc.string' */
+
+/* Module declarations from 'libc.stdio' */
+
+/* Module declarations from 'cpython.object' */
+
+/* Module declarations from 'cpython.ref' */
+
+/* Module declarations from 'cpython.exc' */
+
+/* Module declarations from 'cpython.module' */
+
+/* Module declarations from 'cpython.mem' */
+
+/* Module declarations from 'cpython.tuple' */
+
+/* Module declarations from 'cpython.list' */
+
+/* Module declarations from 'cpython.sequence' */
+
+/* Module declarations from 'cpython.mapping' */
+
+/* Module declarations from 'cpython.iterator' */
+
+/* Module declarations from 'cpython.number' */
+
+/* Module declarations from 'cpython.int' */
+
+/* Module declarations from '__builtin__' */
+
+/* Module declarations from 'cpython.bool' */
+static PyTypeObject *__pyx_ptype_7cpython_4bool_bool = 0;
+
+/* Module declarations from 'cpython.long' */
+
+/* Module declarations from 'cpython.float' */
+
+/* Module declarations from '__builtin__' */
+
+/* Module declarations from 'cpython.complex' */
+static PyTypeObject *__pyx_ptype_7cpython_7complex_complex = 0;
+
+/* Module declarations from 'cpython.string' */
+
+/* Module declarations from 'cpython.unicode' */
+
+/* Module declarations from 'cpython.dict' */
+
+/* Module declarations from 'cpython.instance' */
+
+/* Module declarations from 'cpython.function' */
+
+/* Module declarations from 'cpython.method' */
+
+/* Module declarations from 'cpython.weakref' */
+
+/* Module declarations from 'cpython.getargs' */
+
+/* Module declarations from 'cpython.pythread' */
+
+/* Module declarations from 'cpython.pystate' */
+
+/* Module declarations from 'cpython.cobject' */
+
+/* Module declarations from 'cpython.oldbuffer' */
+
+/* Module declarations from 'cpython.set' */
+
+/* Module declarations from 'cpython.buffer' */
+
+/* Module declarations from 'cpython.bytes' */
+
+/* Module declarations from 'cpython.pycapsule' */
+
+/* Module declarations from 'cpython' */
+
+/* Module declarations from 'msgpack._packer' */
+static PyTypeObject *__pyx_ptype_7msgpack_7_packer_Packer = 0;
+static int __pyx_v_7msgpack_7_packer_DEFAULT_RECURSE_LIMIT;
+static PY_LONG_LONG __pyx_v_7msgpack_7_packer_ITEM_LIMIT;
+static CYTHON_INLINE int __pyx_f_7msgpack_7_packer_PyBytesLike_Check(PyObject *); /*proto*/
+static CYTHON_INLINE int __pyx_f_7msgpack_7_packer_PyBytesLike_CheckExact(PyObject *); /*proto*/
+#define __Pyx_MODULE_NAME "msgpack._packer"
+extern int __pyx_module_is_main_msgpack___packer;
+int __pyx_module_is_main_msgpack___packer = 0;
+
+/* Implementation of 'msgpack._packer' */
+static PyObject *__pyx_builtin_MemoryError;
+static PyObject *__pyx_builtin_PendingDeprecationWarning;
+static PyObject *__pyx_builtin_TypeError;
+static PyObject *__pyx_builtin_OverflowError;
+static PyObject *__pyx_builtin_RuntimeError;
+static const char __pyx_k_code[] = "code";
+static const char __pyx_k_data[] = "data";
+static const char __pyx_k_main[] = "__main__";
+static const char __pyx_k_name[] = "__name__";
+static const char __pyx_k_pack[] = "pack";
+static const char __pyx_k_test[] = "__test__";
+static const char __pyx_k_items[] = "items";
+static const char __pyx_k_import[] = "__import__";
+static const char __pyx_k_reduce[] = "__reduce__";
+static const char __pyx_k_ExtType[] = "ExtType";
+static const char __pyx_k_default[] = "default";
+static const char __pyx_k_msgpack[] = "msgpack";
+static const char __pyx_k_encoding[] = "encoding";
+static const char __pyx_k_getstate[] = "__getstate__";
+static const char __pyx_k_setstate[] = "__setstate__";
+static const char __pyx_k_typecode[] = "typecode";
+static const char __pyx_k_TypeError[] = "TypeError";
+static const char __pyx_k_autoreset[] = "autoreset";
+static const char __pyx_k_iteritems[] = "iteritems";
+static const char __pyx_k_reduce_ex[] = "__reduce_ex__";
+static const char __pyx_k_pyx_vtable[] = "__pyx_vtable__";
+static const char __pyx_k_MemoryError[] = "MemoryError";
+static const char __pyx_k_RuntimeError[] = "RuntimeError";
+static const char __pyx_k_strict_types[] = "strict_types";
+static const char __pyx_k_use_bin_type[] = "use_bin_type";
+static const char __pyx_k_OverflowError[] = "OverflowError";
+static const char __pyx_k_reduce_cython[] = "__reduce_cython__";
+static const char __pyx_k_PackValueError[] = "PackValueError";
+static const char __pyx_k_internal_error[] = "internal error";
+static const char __pyx_k_s_is_too_large[] = "%s is too large";
+static const char __pyx_k_unicode_errors[] = "unicode_errors";
+static const char __pyx_k_setstate_cython[] = "__setstate_cython__";
+static const char __pyx_k_use_single_float[] = "use_single_float";
+static const char __pyx_k_PackOverflowError[] = "PackOverflowError";
+static const char __pyx_k_can_t_serialize_r[] = "can't serialize %r";
+static const char __pyx_k_dict_is_too_large[] = "dict is too large";
+static const char __pyx_k_list_is_too_large[] = "list is too large";
+static const char __pyx_k_cline_in_traceback[] = "cline_in_traceback";
+static const char __pyx_k_msgpack_exceptions[] = "msgpack.exceptions";
+static const char __pyx_k_EXT_data_is_too_large[] = "EXT data is too large";
+static const char __pyx_k_memoryview_is_too_large[] = "memoryview is too large";
+static const char __pyx_k_recursion_limit_exceeded[] = "recursion limit exceeded.";
+static const char __pyx_k_PendingDeprecationWarning[] = "PendingDeprecationWarning";
+static const char __pyx_k_Integer_value_out_of_range[] = "Integer value out of range";
+static const char __pyx_k_default_must_be_a_callable[] = "default must be a callable.";
+static const char __pyx_k_unicode_string_is_too_large[] = "unicode string is too large";
+static const char __pyx_k_Unable_to_allocate_internal_buff[] = "Unable to allocate internal buffer.";
+static const char __pyx_k_could_not_get_buffer_for_memoryv[] = "could not get buffer for memoryview";
+static const char __pyx_k_no_default___reduce___due_to_non[] = "no default __reduce__ due to non-trivial __cinit__";
+static PyObject *__pyx_kp_s_EXT_data_is_too_large;
+static PyObject *__pyx_n_s_ExtType;
+static PyObject *__pyx_kp_s_Integer_value_out_of_range;
+static PyObject *__pyx_n_s_MemoryError;
+static PyObject *__pyx_n_s_OverflowError;
+static PyObject *__pyx_n_s_PackOverflowError;
+static PyObject *__pyx_n_s_PackValueError;
+static PyObject *__pyx_n_s_PendingDeprecationWarning;
+static PyObject *__pyx_n_s_RuntimeError;
+static PyObject *__pyx_n_s_TypeError;
+static PyObject *__pyx_kp_s_Unable_to_allocate_internal_buff;
+static PyObject *__pyx_n_s_autoreset;
+static PyObject *__pyx_kp_s_can_t_serialize_r;
+static PyObject *__pyx_n_s_cline_in_traceback;
+static PyObject *__pyx_n_s_code;
+static PyObject *__pyx_kp_s_could_not_get_buffer_for_memoryv;
+static PyObject *__pyx_n_s_data;
+static PyObject *__pyx_n_s_default;
+static PyObject *__pyx_kp_s_default_must_be_a_callable;
+static PyObject *__pyx_kp_s_dict_is_too_large;
+static PyObject *__pyx_n_s_encoding;
+static PyObject *__pyx_n_s_getstate;
+static PyObject *__pyx_n_s_import;
+static PyObject *__pyx_kp_s_internal_error;
+static PyObject *__pyx_n_s_items;
+static PyObject *__pyx_n_s_iteritems;
+static PyObject *__pyx_kp_s_list_is_too_large;
+static PyObject *__pyx_n_s_main;
+static PyObject *__pyx_kp_s_memoryview_is_too_large;
+static PyObject *__pyx_n_s_msgpack;
+static PyObject *__pyx_n_s_msgpack_exceptions;
+static PyObject *__pyx_n_s_name;
+static PyObject *__pyx_kp_s_no_default___reduce___due_to_non;
+static PyObject *__pyx_n_s_pack;
+static PyObject *__pyx_n_s_pyx_vtable;
+static PyObject *__pyx_kp_s_recursion_limit_exceeded;
+static PyObject *__pyx_n_s_reduce;
+static PyObject *__pyx_n_s_reduce_cython;
+static PyObject *__pyx_n_s_reduce_ex;
+static PyObject *__pyx_kp_s_s_is_too_large;
+static PyObject *__pyx_n_s_setstate;
+static PyObject *__pyx_n_s_setstate_cython;
+static PyObject *__pyx_n_s_strict_types;
+static PyObject *__pyx_n_s_test;
+static PyObject *__pyx_n_s_typecode;
+static PyObject *__pyx_n_s_unicode_errors;
+static PyObject *__pyx_kp_s_unicode_string_is_too_large;
+static PyObject *__pyx_n_s_use_bin_type;
+static PyObject *__pyx_n_s_use_single_float;
+static int __pyx_pf_7msgpack_7_packer_6Packer___cinit__(struct __pyx_obj_7msgpack_7_packer_Packer *__pyx_v_self); /* proto */
+static int __pyx_pf_7msgpack_7_packer_6Packer_2__init__(struct __pyx_obj_7msgpack_7_packer_Packer *__pyx_v_self, PyObject *__pyx_v_default, PyObject *__pyx_v_encoding, PyObject *__pyx_v_unicode_errors, int __pyx_v_use_single_float, int __pyx_v_autoreset, int __pyx_v_use_bin_type, int __pyx_v_strict_types); /* proto */
+static void __pyx_pf_7msgpack_7_packer_6Packer_4__dealloc__(struct __pyx_obj_7msgpack_7_packer_Packer *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_7msgpack_7_packer_6Packer_6pack(struct __pyx_obj_7msgpack_7_packer_Packer *__pyx_v_self, PyObject *__pyx_v_obj); /* proto */
+static PyObject *__pyx_pf_7msgpack_7_packer_6Packer_8pack_ext_type(struct __pyx_obj_7msgpack_7_packer_Packer *__pyx_v_self, PyObject *__pyx_v_typecode, PyObject *__pyx_v_data); /* proto */
+static PyObject *__pyx_pf_7msgpack_7_packer_6Packer_10pack_array_header(struct __pyx_obj_7msgpack_7_packer_Packer *__pyx_v_self, PY_LONG_LONG __pyx_v_size); /* proto */
+static PyObject *__pyx_pf_7msgpack_7_packer_6Packer_12pack_map_header(struct __pyx_obj_7msgpack_7_packer_Packer *__pyx_v_self, PY_LONG_LONG __pyx_v_size); /* proto */
+static PyObject *__pyx_pf_7msgpack_7_packer_6Packer_14pack_map_pairs(struct __pyx_obj_7msgpack_7_packer_Packer *__pyx_v_self, PyObject *__pyx_v_pairs); /* proto */
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+}
+
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+}
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+}
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+  {0, 0, 0, 0}
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+  "msgpack._packer.Packer", /*tp_name*/
+  sizeof(struct __pyx_obj_7msgpack_7_packer_Packer), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_7msgpack_7_packer_Packer, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
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+  0, /*tp_compare*/
+  #endif
+  #if PY_MAJOR_VERSION >= 3
+  0, /*tp_as_async*/
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+  0, /*tp_repr*/
+  0, /*tp_as_number*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  0, /*tp_as_buffer*/
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+  __pyx_tp_traverse_7msgpack_7_packer_Packer, /*tp_traverse*/
+  __pyx_tp_clear_7msgpack_7_packer_Packer, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods_7msgpack_7_packer_Packer, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  __pyx_pw_7msgpack_7_packer_6Packer_3__init__, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_7msgpack_7_packer_Packer, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  0, /*tp_version_tag*/
+  #if PY_VERSION_HEX >= 0x030400a1
+  0, /*tp_finalize*/
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+  /* "msgpack/_packer.pyx":8
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+ * from msgpack import ExtType
+ * 
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+  /* "msgpack/_packer.pyx":9
+ * 
+ * from msgpack.exceptions import PackValueError, PackOverflowError
+ * from msgpack import ExtType             # <<<<<<<<<<<<<<
+ * 
+ * 
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+  /* "msgpack/_packer.pyx":44
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+ * 
+ */
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+ * 
+ * 
+ */
+  __pyx_v_7msgpack_7_packer_ITEM_LIMIT = 0xFFFFFFFF;
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+  /* "msgpack/_packer.pyx":150
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+  /*--- Wrapped vars code ---*/
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+  goto __pyx_L0;
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+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_2);
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+      __Pyx_AddTraceback("init msgpack._packer", 0, __pyx_lineno, __pyx_filename);
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+}
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+/* --- Runtime support code --- */
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+    p = PyObject_GetAttrString(m, (char *)"RefNannyAPI");
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+#if PY_MAJOR_VERSION >= 3
+            "name '%U' is not defined", name);
+#else
+            "name '%.200s' is not defined", PyString_AS_STRING(name));
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+}
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+/* RaiseArgTupleInvalid */
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+    const char* func_name,
+    int exact,
+    Py_ssize_t num_min,
+    Py_ssize_t num_max,
+    Py_ssize_t num_found)
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+}
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+    if (!kw_allowed && PyDict_Next(kwdict, &pos, &key, 0))
+        goto invalid_keyword;
+    return 1;
+#else
+    while (PyDict_Next(kwdict, &pos, &key, 0)) {
+        #if PY_MAJOR_VERSION < 3
+        if (unlikely(!PyString_Check(key)))
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+    return 0;
+}
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+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+    PyObject *result;
+    ternaryfunc call = func->ob_type->tp_call;
+    if (unlikely(!call))
+        return PyObject_Call(func, arg, kw);
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+        return NULL;
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+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
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+    return result;
+}
+#endif
+
+/* PyErrFetchRestore */
+#if CYTHON_FAST_THREAD_STATE
+static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
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+    tmp_value = tstate->curexc_value;
+    tmp_tb = tstate->curexc_traceback;
+    tstate->curexc_type = type;
+    tstate->curexc_value = value;
+    tstate->curexc_traceback = tb;
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+}
+static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
+    *type = tstate->curexc_type;
+    *value = tstate->curexc_value;
+    *tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
+}
+#endif
+
+/* RaiseException */
+#if PY_MAJOR_VERSION < 3
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb,
+                        CYTHON_UNUSED PyObject *cause) {
+    __Pyx_PyThreadState_declare
+    Py_XINCREF(type);
+    if (!value || value == Py_None)
+        value = NULL;
+    else
+        Py_INCREF(value);
+    if (!tb || tb == Py_None)
+        tb = NULL;
+    else {
+        Py_INCREF(tb);
+        if (!PyTraceBack_Check(tb)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: arg 3 must be a traceback or None");
+            goto raise_error;
+        }
+    }
+    if (PyType_Check(type)) {
+#if CYTHON_COMPILING_IN_PYPY
+        if (!value) {
+            Py_INCREF(Py_None);
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+#endif
+        PyErr_NormalizeException(&type, &value, &tb);
+    } else {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto raise_error;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(type);
+        Py_INCREF(type);
+        if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: exception class must be a subclass of BaseException");
+            goto raise_error;
+        }
+    }
+    __Pyx_PyThreadState_assign
+    __Pyx_ErrRestore(type, value, tb);
+    return;
+raise_error:
+    Py_XDECREF(value);
+    Py_XDECREF(type);
+    Py_XDECREF(tb);
+    return;
+}
+#else
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) {
+    PyObject* owned_instance = NULL;
+    if (tb == Py_None) {
+        tb = 0;
+    } else if (tb && !PyTraceBack_Check(tb)) {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: arg 3 must be a traceback or None");
+        goto bad;
+    }
+    if (value == Py_None)
+        value = 0;
+    if (PyExceptionInstance_Check(type)) {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto bad;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(value);
+    } else if (PyExceptionClass_Check(type)) {
+        PyObject *instance_class = NULL;
+        if (value && PyExceptionInstance_Check(value)) {
+            instance_class = (PyObject*) Py_TYPE(value);
+            if (instance_class != type) {
+                int is_subclass = PyObject_IsSubclass(instance_class, type);
+                if (!is_subclass) {
+                    instance_class = NULL;
+                } else if (unlikely(is_subclass == -1)) {
+                    goto bad;
+                } else {
+                    type = instance_class;
+                }
+            }
+        }
+        if (!instance_class) {
+            PyObject *args;
+            if (!value)
+                args = PyTuple_New(0);
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+                Py_INCREF(value);
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+                args = PyTuple_Pack(1, value);
+            if (!args)
+                goto bad;
+            owned_instance = PyObject_Call(type, args, NULL);
+            Py_DECREF(args);
+            if (!owned_instance)
+                goto bad;
+            value = owned_instance;
+            if (!PyExceptionInstance_Check(value)) {
+                PyErr_Format(PyExc_TypeError,
+                             "calling %R should have returned an instance of "
+                             "BaseException, not %R",
+                             type, Py_TYPE(value));
+                goto bad;
+            }
+        }
+    } else {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: exception class must be a subclass of BaseException");
+        goto bad;
+    }
+    if (cause) {
+        PyObject *fixed_cause;
+        if (cause == Py_None) {
+            fixed_cause = NULL;
+        } else if (PyExceptionClass_Check(cause)) {
+            fixed_cause = PyObject_CallObject(cause, NULL);
+            if (fixed_cause == NULL)
+                goto bad;
+        } else if (PyExceptionInstance_Check(cause)) {
+            fixed_cause = cause;
+            Py_INCREF(fixed_cause);
+        } else {
+            PyErr_SetString(PyExc_TypeError,
+                            "exception causes must derive from "
+                            "BaseException");
+            goto bad;
+        }
+        PyException_SetCause(value, fixed_cause);
+    }
+    PyErr_SetObject(type, value);
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+#if CYTHON_COMPILING_IN_PYPY
+        PyObject *tmp_type, *tmp_value, *tmp_tb;
+        PyErr_Fetch(&tmp_type, &tmp_value, &tmp_tb);
+        Py_INCREF(tb);
+        PyErr_Restore(tmp_type, tmp_value, tb);
+        Py_XDECREF(tmp_tb);
+#else
+        PyThreadState *tstate = __Pyx_PyThreadState_Current;
+        PyObject* tmp_tb = tstate->curexc_traceback;
+        if (tb != tmp_tb) {
+            Py_INCREF(tb);
+            tstate->curexc_traceback = tb;
+            Py_XDECREF(tmp_tb);
+        }
+#endif
+    }
+bad:
+    Py_XDECREF(owned_instance);
+    return;
+}
+#endif
+
+/* RaiseDoubleKeywords */
+static void __Pyx_RaiseDoubleKeywordsError(
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+    PyObject* kw_name)
+{
+    PyErr_Format(PyExc_TypeError,
+        #if PY_MAJOR_VERSION >= 3
+        "%s() got multiple values for keyword argument '%U'", func_name, kw_name);
+        #else
+        "%s() got multiple values for keyword argument '%s'", func_name,
+        PyString_AsString(kw_name));
+        #endif
+}
+
+/* ParseKeywords */
+static int __Pyx_ParseOptionalKeywords(
+    PyObject *kwds,
+    PyObject **argnames[],
+    PyObject *kwds2,
+    PyObject *values[],
+    Py_ssize_t num_pos_args,
+    const char* function_name)
+{
+    PyObject *key = 0, *value = 0;
+    Py_ssize_t pos = 0;
+    PyObject*** name;
+    PyObject*** first_kw_arg = argnames + num_pos_args;
+    while (PyDict_Next(kwds, &pos, &key, &value)) {
+        name = first_kw_arg;
+        while (*name && (**name != key)) name++;
+        if (*name) {
+            values[name-argnames] = value;
+            continue;
+        }
+        name = first_kw_arg;
+        #if PY_MAJOR_VERSION < 3
+        if (likely(PyString_CheckExact(key)) || likely(PyString_Check(key))) {
+            while (*name) {
+                if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key))
+                        && _PyString_Eq(**name, key)) {
+                    values[name-argnames] = value;
+                    break;
+                }
+                name++;
+            }
+            if (*name) continue;
+            else {
+                PyObject*** argname = argnames;
+                while (argname != first_kw_arg) {
+                    if ((**argname == key) || (
+                            (CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**argname) == PyString_GET_SIZE(key))
+                             && _PyString_Eq(**argname, key))) {
+                        goto arg_passed_twice;
+                    }
+                    argname++;
+                }
+            }
+        } else
+        #endif
+        if (likely(PyUnicode_Check(key))) {
+            while (*name) {
+                int cmp = (**name == key) ? 0 :
+                #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
+                    (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
+                #endif
+                    PyUnicode_Compare(**name, key);
+                if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
+                if (cmp == 0) {
+                    values[name-argnames] = value;
+                    break;
+                }
+                name++;
+            }
+            if (*name) continue;
+            else {
+                PyObject*** argname = argnames;
+                while (argname != first_kw_arg) {
+                    int cmp = (**argname == key) ? 0 :
+                    #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
+                        (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
+                    #endif
+                        PyUnicode_Compare(**argname, key);
+                    if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
+                    if (cmp == 0) goto arg_passed_twice;
+                    argname++;
+                }
+            }
+        } else
+            goto invalid_keyword_type;
+        if (kwds2) {
+            if (unlikely(PyDict_SetItem(kwds2, key, value))) goto bad;
+        } else {
+            goto invalid_keyword;
+        }
+    }
+    return 0;
+arg_passed_twice:
+    __Pyx_RaiseDoubleKeywordsError(function_name, key);
+    goto bad;
+invalid_keyword_type:
+    PyErr_Format(PyExc_TypeError,
+        "%.200s() keywords must be strings", function_name);
+    goto bad;
+invalid_keyword:
+    PyErr_Format(PyExc_TypeError,
+    #if PY_MAJOR_VERSION < 3
+        "%.200s() got an unexpected keyword argument '%.200s'",
+        function_name, PyString_AsString(key));
+    #else
+        "%s() got an unexpected keyword argument '%U'",
+        function_name, key);
+    #endif
+bad:
+    return -1;
+}
+
+/* ExtTypeTest */
+static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type) {
+    if (unlikely(!type)) {
+        PyErr_SetString(PyExc_SystemError, "Missing type object");
+        return 0;
+    }
+    if (likely(__Pyx_TypeCheck(obj, type)))
+        return 1;
+    PyErr_Format(PyExc_TypeError, "Cannot convert %.200s to %.200s",
+                 Py_TYPE(obj)->tp_name, type->tp_name);
+    return 0;
+}
+
+/* GetModuleGlobalName */
+static CYTHON_INLINE PyObject *__Pyx_GetModuleGlobalName(PyObject *name) {
+    PyObject *result;
+#if !CYTHON_AVOID_BORROWED_REFS
+    result = PyDict_GetItem(__pyx_d, name);
+    if (likely(result)) {
+        Py_INCREF(result);
+    } else {
+#else
+    result = PyObject_GetItem(__pyx_d, name);
+    if (!result) {
+        PyErr_Clear();
+#endif
+        result = __Pyx_GetBuiltinName(name);
+    }
+    return result;
+}
+
+/* SaveResetException */
+  #if CYTHON_FAST_THREAD_STATE
+static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
+    #if PY_VERSION_HEX >= 0x030700A2
+    *type = tstate->exc_state.exc_type;
+    *value = tstate->exc_state.exc_value;
+    *tb = tstate->exc_state.exc_traceback;
+    #else
+    *type = tstate->exc_type;
+    *value = tstate->exc_value;
+    *tb = tstate->exc_traceback;
+    #endif
+    Py_XINCREF(*type);
+    Py_XINCREF(*value);
+    Py_XINCREF(*tb);
+}
+static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    #if PY_VERSION_HEX >= 0x030700A2
+    tmp_type = tstate->exc_state.exc_type;
+    tmp_value = tstate->exc_state.exc_value;
+    tmp_tb = tstate->exc_state.exc_traceback;
+    tstate->exc_state.exc_type = type;
+    tstate->exc_state.exc_value = value;
+    tstate->exc_state.exc_traceback = tb;
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = type;
+    tstate->exc_value = value;
+    tstate->exc_traceback = tb;
+    #endif
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+}
+#endif
+
+/* PyErrExceptionMatches */
+  #if CYTHON_FAST_THREAD_STATE
+static int __Pyx_PyErr_ExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        if (__Pyx_PyErr_GivenExceptionMatches(exc_type, PyTuple_GET_ITEM(tuple, i))) return 1;
+    }
+    return 0;
+}
+static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err) {
+    PyObject *exc_type = tstate->curexc_type;
+    if (exc_type == err) return 1;
+    if (unlikely(!exc_type)) return 0;
+    if (unlikely(PyTuple_Check(err)))
+        return __Pyx_PyErr_ExceptionMatchesTuple(exc_type, err);
+    return __Pyx_PyErr_GivenExceptionMatches(exc_type, err);
+}
+#endif
+
+/* GetException */
+  #if CYTHON_FAST_THREAD_STATE
+static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
+#else
+static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb) {
+#endif
+    PyObject *local_type, *local_value, *local_tb;
+#if CYTHON_FAST_THREAD_STATE
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    local_type = tstate->curexc_type;
+    local_value = tstate->curexc_value;
+    local_tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
+#else
+    PyErr_Fetch(&local_type, &local_value, &local_tb);
+#endif
+    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
+#if CYTHON_FAST_THREAD_STATE
+    if (unlikely(tstate->curexc_type))
+#else
+    if (unlikely(PyErr_Occurred()))
+#endif
+        goto bad;
+    #if PY_MAJOR_VERSION >= 3
+    if (local_tb) {
+        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
+            goto bad;
+    }
+    #endif
+    Py_XINCREF(local_tb);
+    Py_XINCREF(local_type);
+    Py_XINCREF(local_value);
+    *type = local_type;
+    *value = local_value;
+    *tb = local_tb;
+#if CYTHON_FAST_THREAD_STATE
+    #if PY_VERSION_HEX >= 0x030700A2
+    tmp_type = tstate->exc_state.exc_type;
+    tmp_value = tstate->exc_state.exc_value;
+    tmp_tb = tstate->exc_state.exc_traceback;
+    tstate->exc_state.exc_type = local_type;
+    tstate->exc_state.exc_value = local_value;
+    tstate->exc_state.exc_traceback = local_tb;
+    #else
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = local_type;
+    tstate->exc_value = local_value;
+    tstate->exc_traceback = local_tb;
+    #endif
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+#else
+    PyErr_SetExcInfo(local_type, local_value, local_tb);
+#endif
+    return 0;
+bad:
+    *type = 0;
+    *value = 0;
+    *tb = 0;
+    Py_XDECREF(local_type);
+    Py_XDECREF(local_value);
+    Py_XDECREF(local_tb);
+    return -1;
+}
+
+/* PyCFunctionFastCall */
+    #if CYTHON_FAST_PYCCALL
+static CYTHON_INLINE PyObject * __Pyx_PyCFunction_FastCall(PyObject *func_obj, PyObject **args, Py_ssize_t nargs) {
+    PyCFunctionObject *func = (PyCFunctionObject*)func_obj;
+    PyCFunction meth = PyCFunction_GET_FUNCTION(func);
+    PyObject *self = PyCFunction_GET_SELF(func);
+    int flags = PyCFunction_GET_FLAGS(func);
+    assert(PyCFunction_Check(func));
+    assert(METH_FASTCALL == (flags & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS)));
+    assert(nargs >= 0);
+    assert(nargs == 0 || args != NULL);
+    /* _PyCFunction_FastCallDict() must not be called with an exception set,
+       because it may clear it (directly or indirectly) and so the
+       caller loses its exception */
+    assert(!PyErr_Occurred());
+    if ((PY_VERSION_HEX < 0x030700A0) || unlikely(flags & METH_KEYWORDS)) {
+        return (*((__Pyx_PyCFunctionFastWithKeywords)meth)) (self, args, nargs, NULL);
+    } else {
+        return (*((__Pyx_PyCFunctionFast)meth)) (self, args, nargs);
+    }
+}
+#endif
+
+/* PyFunctionFastCall */
+    #if CYTHON_FAST_PYCALL
+#include "frameobject.h"
+static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args, Py_ssize_t na,
+                                               PyObject *globals) {
+    PyFrameObject *f;
+    PyThreadState *tstate = __Pyx_PyThreadState_Current;
+    PyObject **fastlocals;
+    Py_ssize_t i;
+    PyObject *result;
+    assert(globals != NULL);
+    /* XXX Perhaps we should create a specialized
+       PyFrame_New() that doesn't take locals, but does
+       take builtins without sanity checking them.
+       */
+    assert(tstate != NULL);
+    f = PyFrame_New(tstate, co, globals, NULL);
+    if (f == NULL) {
+        return NULL;
+    }
+    fastlocals = f->f_localsplus;
+    for (i = 0; i < na; i++) {
+        Py_INCREF(*args);
+        fastlocals[i] = *args++;
+    }
+    result = PyEval_EvalFrameEx(f,0);
+    ++tstate->recursion_depth;
+    Py_DECREF(f);
+    --tstate->recursion_depth;
+    return result;
+}
+#if 1 || PY_VERSION_HEX < 0x030600B1
+static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, int nargs, PyObject *kwargs) {
+    PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func);
+    PyObject *globals = PyFunction_GET_GLOBALS(func);
+    PyObject *argdefs = PyFunction_GET_DEFAULTS(func);
+    PyObject *closure;
+#if PY_MAJOR_VERSION >= 3
+    PyObject *kwdefs;
+#endif
+    PyObject *kwtuple, **k;
+    PyObject **d;
+    Py_ssize_t nd;
+    Py_ssize_t nk;
+    PyObject *result;
+    assert(kwargs == NULL || PyDict_Check(kwargs));
+    nk = kwargs ? PyDict_Size(kwargs) : 0;
+    if (Py_EnterRecursiveCall((char*)" while calling a Python object")) {
+        return NULL;
+    }
+    if (
+#if PY_MAJOR_VERSION >= 3
+            co->co_kwonlyargcount == 0 &&
+#endif
+            likely(kwargs == NULL || nk == 0) &&
+            co->co_flags == (CO_OPTIMIZED | CO_NEWLOCALS | CO_NOFREE)) {
+        if (argdefs == NULL && co->co_argcount == nargs) {
+            result = __Pyx_PyFunction_FastCallNoKw(co, args, nargs, globals);
+            goto done;
+        }
+        else if (nargs == 0 && argdefs != NULL
+                 && co->co_argcount == Py_SIZE(argdefs)) {
+            /* function called with no arguments, but all parameters have
+               a default value: use default values as arguments .*/
+            args = &PyTuple_GET_ITEM(argdefs, 0);
+            result =__Pyx_PyFunction_FastCallNoKw(co, args, Py_SIZE(argdefs), globals);
+            goto done;
+        }
+    }
+    if (kwargs != NULL) {
+        Py_ssize_t pos, i;
+        kwtuple = PyTuple_New(2 * nk);
+        if (kwtuple == NULL) {
+            result = NULL;
+            goto done;
+        }
+        k = &PyTuple_GET_ITEM(kwtuple, 0);
+        pos = i = 0;
+        while (PyDict_Next(kwargs, &pos, &k[i], &k[i+1])) {
+            Py_INCREF(k[i]);
+            Py_INCREF(k[i+1]);
+            i += 2;
+        }
+        nk = i / 2;
+    }
+    else {
+        kwtuple = NULL;
+        k = NULL;
+    }
+    closure = PyFunction_GET_CLOSURE(func);
+#if PY_MAJOR_VERSION >= 3
+    kwdefs = PyFunction_GET_KW_DEFAULTS(func);
+#endif
+    if (argdefs != NULL) {
+        d = &PyTuple_GET_ITEM(argdefs, 0);
+        nd = Py_SIZE(argdefs);
+    }
+    else {
+        d = NULL;
+        nd = 0;
+    }
+#if PY_MAJOR_VERSION >= 3
+    result = PyEval_EvalCodeEx((PyObject*)co, globals, (PyObject *)NULL,
+                               args, nargs,
+                               k, (int)nk,
+                               d, (int)nd, kwdefs, closure);
+#else
+    result = PyEval_EvalCodeEx(co, globals, (PyObject *)NULL,
+                               args, nargs,
+                               k, (int)nk,
+                               d, (int)nd, closure);
+#endif
+    Py_XDECREF(kwtuple);
+done:
+    Py_LeaveRecursiveCall();
+    return result;
+}
+#endif
+#endif
+
+/* PyObjectCallMethO */
+    #if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
+    PyObject *self, *result;
+    PyCFunction cfunc;
+    cfunc = PyCFunction_GET_FUNCTION(func);
+    self = PyCFunction_GET_SELF(func);
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    result = cfunc(self, arg);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+/* PyObjectCallOneArg */
+    #if CYTHON_COMPILING_IN_CPYTHON
+static PyObject* __Pyx__PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject *result;
+    PyObject *args = PyTuple_New(1);
+    if (unlikely(!args)) return NULL;
+    Py_INCREF(arg);
+    PyTuple_SET_ITEM(args, 0, arg);
+    result = __Pyx_PyObject_Call(func, args, NULL);
+    Py_DECREF(args);
+    return result;
+}
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+#if CYTHON_FAST_PYCALL
+    if (PyFunction_Check(func)) {
+        return __Pyx_PyFunction_FastCall(func, &arg, 1);
+    }
+#endif
+    if (likely(PyCFunction_Check(func))) {
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_O)) {
+            return __Pyx_PyObject_CallMethO(func, arg);
+#if CYTHON_FAST_PYCCALL
+        } else if (PyCFunction_GET_FLAGS(func) & METH_FASTCALL) {
+            return __Pyx_PyCFunction_FastCall(func, &arg, 1);
+#endif
+        }
+    }
+    return __Pyx__PyObject_CallOneArg(func, arg);
+}
+#else
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject *result;
+    PyObject *args = PyTuple_Pack(1, arg);
+    if (unlikely(!args)) return NULL;
+    result = __Pyx_PyObject_Call(func, args, NULL);
+    Py_DECREF(args);
+    return result;
+}
+#endif
+
+/* IterFinish */
+    static CYTHON_INLINE int __Pyx_IterFinish(void) {
+#if CYTHON_FAST_THREAD_STATE
+    PyThreadState *tstate = __Pyx_PyThreadState_Current;
+    PyObject* exc_type = tstate->curexc_type;
+    if (unlikely(exc_type)) {
+        if (likely(__Pyx_PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration))) {
+            PyObject *exc_value, *exc_tb;
+            exc_value = tstate->curexc_value;
+            exc_tb = tstate->curexc_traceback;
+            tstate->curexc_type = 0;
+            tstate->curexc_value = 0;
+            tstate->curexc_traceback = 0;
+            Py_DECREF(exc_type);
+            Py_XDECREF(exc_value);
+            Py_XDECREF(exc_tb);
+            return 0;
+        } else {
+            return -1;
+        }
+    }
+    return 0;
+#else
+    if (unlikely(PyErr_Occurred())) {
+        if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) {
+            PyErr_Clear();
+            return 0;
+        } else {
+            return -1;
+        }
+    }
+    return 0;
+#endif
+}
+
+/* PyObjectCallNoArg */
+    #if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func) {
+#if CYTHON_FAST_PYCALL
+    if (PyFunction_Check(func)) {
+        return __Pyx_PyFunction_FastCall(func, NULL, 0);
+    }
+#endif
+#ifdef __Pyx_CyFunction_USED
+    if (likely(PyCFunction_Check(func) || __Pyx_TypeCheck(func, __pyx_CyFunctionType))) {
+#else
+    if (likely(PyCFunction_Check(func))) {
+#endif
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_NOARGS)) {
+            return __Pyx_PyObject_CallMethO(func, NULL);
+        }
+    }
+    return __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL);
+}
+#endif
+
+/* PyObjectCallMethod0 */
+      static PyObject* __Pyx_PyObject_CallMethod0(PyObject* obj, PyObject* method_name) {
+    PyObject *method, *result = NULL;
+    method = __Pyx_PyObject_GetAttrStr(obj, method_name);
+    if (unlikely(!method)) goto bad;
+#if CYTHON_UNPACK_METHODS
+    if (likely(PyMethod_Check(method))) {
+        PyObject *self = PyMethod_GET_SELF(method);
+        if (likely(self)) {
+            PyObject *function = PyMethod_GET_FUNCTION(method);
+            result = __Pyx_PyObject_CallOneArg(function, self);
+            Py_DECREF(method);
+            return result;
+        }
+    }
+#endif
+    result = __Pyx_PyObject_CallNoArg(method);
+    Py_DECREF(method);
+bad:
+    return result;
+}
+
+/* RaiseNeedMoreValuesToUnpack */
+      static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
+    PyErr_Format(PyExc_ValueError,
+                 "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack",
+                 index, (index == 1) ? "" : "s");
+}
+
+/* RaiseTooManyValuesToUnpack */
+      static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
+    PyErr_Format(PyExc_ValueError,
+                 "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected);
+}
+
+/* UnpackItemEndCheck */
+      static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected) {
+    if (unlikely(retval)) {
+        Py_DECREF(retval);
+        __Pyx_RaiseTooManyValuesError(expected);
+        return -1;
+    } else {
+        return __Pyx_IterFinish();
+    }
+    return 0;
+}
+
+/* RaiseNoneIterError */
+      static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
+    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable");
+}
+
+/* UnpackTupleError */
+      static void __Pyx_UnpackTupleError(PyObject *t, Py_ssize_t index) {
+    if (t == Py_None) {
+      __Pyx_RaiseNoneNotIterableError();
+    } else if (PyTuple_GET_SIZE(t) < index) {
+      __Pyx_RaiseNeedMoreValuesError(PyTuple_GET_SIZE(t));
+    } else {
+      __Pyx_RaiseTooManyValuesError(index);
+    }
+}
+
+/* UnpackTuple2 */
+      static CYTHON_INLINE int __Pyx_unpack_tuple2_exact(
+        PyObject* tuple, PyObject** pvalue1, PyObject** pvalue2, int decref_tuple) {
+    PyObject *value1 = NULL, *value2 = NULL;
+#if CYTHON_COMPILING_IN_PYPY
+    value1 = PySequence_ITEM(tuple, 0);  if (unlikely(!value1)) goto bad;
+    value2 = PySequence_ITEM(tuple, 1);  if (unlikely(!value2)) goto bad;
+#else
+    value1 = PyTuple_GET_ITEM(tuple, 0);  Py_INCREF(value1);
+    value2 = PyTuple_GET_ITEM(tuple, 1);  Py_INCREF(value2);
+#endif
+    if (decref_tuple) {
+        Py_DECREF(tuple);
+    }
+    *pvalue1 = value1;
+    *pvalue2 = value2;
+    return 0;
+#if CYTHON_COMPILING_IN_PYPY
+bad:
+    Py_XDECREF(value1);
+    Py_XDECREF(value2);
+    if (decref_tuple) { Py_XDECREF(tuple); }
+    return -1;
+#endif
+}
+static int __Pyx_unpack_tuple2_generic(PyObject* tuple, PyObject** pvalue1, PyObject** pvalue2,
+                                       int has_known_size, int decref_tuple) {
+    Py_ssize_t index;
+    PyObject *value1 = NULL, *value2 = NULL, *iter = NULL;
+    iternextfunc iternext;
+    iter = PyObject_GetIter(tuple);
+    if (unlikely(!iter)) goto bad;
+    if (decref_tuple) { Py_DECREF(tuple); tuple = NULL; }
+    iternext = Py_TYPE(iter)->tp_iternext;
+    value1 = iternext(iter); if (unlikely(!value1)) { index = 0; goto unpacking_failed; }
+    value2 = iternext(iter); if (unlikely(!value2)) { index = 1; goto unpacking_failed; }
+    if (!has_known_size && unlikely(__Pyx_IternextUnpackEndCheck(iternext(iter), 2))) goto bad;
+    Py_DECREF(iter);
+    *pvalue1 = value1;
+    *pvalue2 = value2;
+    return 0;
+unpacking_failed:
+    if (!has_known_size && __Pyx_IterFinish() == 0)
+        __Pyx_RaiseNeedMoreValuesError(index);
+bad:
+    Py_XDECREF(iter);
+    Py_XDECREF(value1);
+    Py_XDECREF(value2);
+    if (decref_tuple) { Py_XDECREF(tuple); }
+    return -1;
+}
+
+/* dict_iter */
+      static CYTHON_INLINE PyObject* __Pyx_dict_iterator(PyObject* iterable, int is_dict, PyObject* method_name,
+                                                   Py_ssize_t* p_orig_length, int* p_source_is_dict) {
+    is_dict = is_dict || likely(PyDict_CheckExact(iterable));
+    *p_source_is_dict = is_dict;
+    if (is_dict) {
+#if !CYTHON_COMPILING_IN_PYPY
+        *p_orig_length = PyDict_Size(iterable);
+        Py_INCREF(iterable);
+        return iterable;
+#elif PY_MAJOR_VERSION >= 3
+        static PyObject *py_items = NULL, *py_keys = NULL, *py_values = NULL;
+        PyObject **pp = NULL;
+        if (method_name) {
+            const char *name = PyUnicode_AsUTF8(method_name);
+            if (strcmp(name, "iteritems") == 0) pp = &py_items;
+            else if (strcmp(name, "iterkeys") == 0) pp = &py_keys;
+            else if (strcmp(name, "itervalues") == 0) pp = &py_values;
+            if (pp) {
+                if (!*pp) {
+                    *pp = PyUnicode_FromString(name + 4);
+                    if (!*pp)
+                        return NULL;
+                }
+                method_name = *pp;
+            }
+        }
+#endif
+    }
+    *p_orig_length = 0;
+    if (method_name) {
+        PyObject* iter;
+        iterable = __Pyx_PyObject_CallMethod0(iterable, method_name);
+        if (!iterable)
+            return NULL;
+#if !CYTHON_COMPILING_IN_PYPY
+        if (PyTuple_CheckExact(iterable) || PyList_CheckExact(iterable))
+            return iterable;
+#endif
+        iter = PyObject_GetIter(iterable);
+        Py_DECREF(iterable);
+        return iter;
+    }
+    return PyObject_GetIter(iterable);
+}
+static CYTHON_INLINE int __Pyx_dict_iter_next(
+        PyObject* iter_obj, CYTHON_NCP_UNUSED Py_ssize_t orig_length, CYTHON_NCP_UNUSED Py_ssize_t* ppos,
+        PyObject** pkey, PyObject** pvalue, PyObject** pitem, int source_is_dict) {
+    PyObject* next_item;
+#if !CYTHON_COMPILING_IN_PYPY
+    if (source_is_dict) {
+        PyObject *key, *value;
+        if (unlikely(orig_length != PyDict_Size(iter_obj))) {
+            PyErr_SetString(PyExc_RuntimeError, "dictionary changed size during iteration");
+            return -1;
+        }
+        if (unlikely(!PyDict_Next(iter_obj, ppos, &key, &value))) {
+            return 0;
+        }
+        if (pitem) {
+            PyObject* tuple = PyTuple_New(2);
+            if (unlikely(!tuple)) {
+                return -1;
+            }
+            Py_INCREF(key);
+            Py_INCREF(value);
+            PyTuple_SET_ITEM(tuple, 0, key);
+            PyTuple_SET_ITEM(tuple, 1, value);
+            *pitem = tuple;
+        } else {
+            if (pkey) {
+                Py_INCREF(key);
+                *pkey = key;
+            }
+            if (pvalue) {
+                Py_INCREF(value);
+                *pvalue = value;
+            }
+        }
+        return 1;
+    } else if (PyTuple_CheckExact(iter_obj)) {
+        Py_ssize_t pos = *ppos;
+        if (unlikely(pos >= PyTuple_GET_SIZE(iter_obj))) return 0;
+        *ppos = pos + 1;
+        next_item = PyTuple_GET_ITEM(iter_obj, pos);
+        Py_INCREF(next_item);
+    } else if (PyList_CheckExact(iter_obj)) {
+        Py_ssize_t pos = *ppos;
+        if (unlikely(pos >= PyList_GET_SIZE(iter_obj))) return 0;
+        *ppos = pos + 1;
+        next_item = PyList_GET_ITEM(iter_obj, pos);
+        Py_INCREF(next_item);
+    } else
+#endif
+    {
+        next_item = PyIter_Next(iter_obj);
+        if (unlikely(!next_item)) {
+            return __Pyx_IterFinish();
+        }
+    }
+    if (pitem) {
+        *pitem = next_item;
+    } else if (pkey && pvalue) {
+        if (__Pyx_unpack_tuple2(next_item, pkey, pvalue, source_is_dict, source_is_dict, 1))
+            return -1;
+    } else if (pkey) {
+        *pkey = next_item;
+    } else {
+        *pvalue = next_item;
+    }
+    return 1;
+}
+
+/* SetVTable */
+      static int __Pyx_SetVtable(PyObject *dict, void *vtable) {
+#if PY_VERSION_HEX >= 0x02070000
+    PyObject *ob = PyCapsule_New(vtable, 0, 0);
+#else
+    PyObject *ob = PyCObject_FromVoidPtr(vtable, 0);
+#endif
+    if (!ob)
+        goto bad;
+    if (PyDict_SetItem(dict, __pyx_n_s_pyx_vtable, ob) < 0)
+        goto bad;
+    Py_DECREF(ob);
+    return 0;
+bad:
+    Py_XDECREF(ob);
+    return -1;
+}
+
+/* SetupReduce */
+      static int __Pyx_setup_reduce_is_named(PyObject* meth, PyObject* name) {
+  int ret;
+  PyObject *name_attr;
+  name_attr = __Pyx_PyObject_GetAttrStr(meth, __pyx_n_s_name);
+  if (likely(name_attr)) {
+      ret = PyObject_RichCompareBool(name_attr, name, Py_EQ);
+  } else {
+      ret = -1;
+  }
+  if (unlikely(ret < 0)) {
+      PyErr_Clear();
+      ret = 0;
+  }
+  Py_XDECREF(name_attr);
+  return ret;
+}
+static int __Pyx_setup_reduce(PyObject* type_obj) {
+    int ret = 0;
+    PyObject *object_reduce = NULL;
+    PyObject *object_reduce_ex = NULL;
+    PyObject *reduce = NULL;
+    PyObject *reduce_ex = NULL;
+    PyObject *reduce_cython = NULL;
+    PyObject *setstate = NULL;
+    PyObject *setstate_cython = NULL;
+#if CYTHON_USE_PYTYPE_LOOKUP
+    if (_PyType_Lookup((PyTypeObject*)type_obj, __pyx_n_s_getstate)) goto GOOD;
+#else
+    if (PyObject_HasAttr(type_obj, __pyx_n_s_getstate)) goto GOOD;
+#endif
+#if CYTHON_USE_PYTYPE_LOOKUP
+    object_reduce_ex = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto BAD;
+#else
+    object_reduce_ex = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto BAD;
+#endif
+    reduce_ex = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_ex); if (unlikely(!reduce_ex)) goto BAD;
+    if (reduce_ex == object_reduce_ex) {
+#if CYTHON_USE_PYTYPE_LOOKUP
+        object_reduce = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto BAD;
+#else
+        object_reduce = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto BAD;
+#endif
+        reduce = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce); if (unlikely(!reduce)) goto BAD;
+        if (reduce == object_reduce || __Pyx_setup_reduce_is_named(reduce, __pyx_n_s_reduce_cython)) {
+            reduce_cython = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_cython); if (unlikely(!reduce_cython)) goto BAD;
+            ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce, reduce_cython); if (unlikely(ret < 0)) goto BAD;
+            ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce_cython); if (unlikely(ret < 0)) goto BAD;
+            setstate = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_setstate);
+            if (!setstate) PyErr_Clear();
+            if (!setstate || __Pyx_setup_reduce_is_named(setstate, __pyx_n_s_setstate_cython)) {
+                setstate_cython = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_setstate_cython); if (unlikely(!setstate_cython)) goto BAD;
+                ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate, setstate_cython); if (unlikely(ret < 0)) goto BAD;
+                ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate_cython); if (unlikely(ret < 0)) goto BAD;
+            }
+            PyType_Modified((PyTypeObject*)type_obj);
+        }
+    }
+    goto GOOD;
+BAD:
+    if (!PyErr_Occurred())
+        PyErr_Format(PyExc_RuntimeError, "Unable to initialize pickling for %s", ((PyTypeObject*)type_obj)->tp_name);
+    ret = -1;
+GOOD:
+#if !CYTHON_USE_PYTYPE_LOOKUP
+    Py_XDECREF(object_reduce);
+    Py_XDECREF(object_reduce_ex);
+#endif
+    Py_XDECREF(reduce);
+    Py_XDECREF(reduce_ex);
+    Py_XDECREF(reduce_cython);
+    Py_XDECREF(setstate);
+    Py_XDECREF(setstate_cython);
+    return ret;
+}
+
+/* Import */
+      static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level) {
+    PyObject *empty_list = 0;
+    PyObject *module = 0;
+    PyObject *global_dict = 0;
+    PyObject *empty_dict = 0;
+    PyObject *list;
+    #if PY_MAJOR_VERSION < 3
+    PyObject *py_import;
+    py_import = __Pyx_PyObject_GetAttrStr(__pyx_b, __pyx_n_s_import);
+    if (!py_import)
+        goto bad;
+    #endif
+    if (from_list)
+        list = from_list;
+    else {
+        empty_list = PyList_New(0);
+        if (!empty_list)
+            goto bad;
+        list = empty_list;
+    }
+    global_dict = PyModule_GetDict(__pyx_m);
+    if (!global_dict)
+        goto bad;
+    empty_dict = PyDict_New();
+    if (!empty_dict)
+        goto bad;
+    {
+        #if PY_MAJOR_VERSION >= 3
+        if (level == -1) {
+            if (strchr(__Pyx_MODULE_NAME, '.')) {
+                module = PyImport_ImportModuleLevelObject(
+                    name, global_dict, empty_dict, list, 1);
+                if (!module) {
+                    if (!PyErr_ExceptionMatches(PyExc_ImportError))
+                        goto bad;
+                    PyErr_Clear();
+                }
+            }
+            level = 0;
+        }
+        #endif
+        if (!module) {
+            #if PY_MAJOR_VERSION < 3
+            PyObject *py_level = PyInt_FromLong(level);
+            if (!py_level)
+                goto bad;
+            module = PyObject_CallFunctionObjArgs(py_import,
+                name, global_dict, empty_dict, list, py_level, NULL);
+            Py_DECREF(py_level);
+            #else
+            module = PyImport_ImportModuleLevelObject(
+                name, global_dict, empty_dict, list, level);
+            #endif
+        }
+    }
+bad:
+    #if PY_MAJOR_VERSION < 3
+    Py_XDECREF(py_import);
+    #endif
+    Py_XDECREF(empty_list);
+    Py_XDECREF(empty_dict);
+    return module;
+}
+
+/* ImportFrom */
+      static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name) {
+    PyObject* value = __Pyx_PyObject_GetAttrStr(module, name);
+    if (unlikely(!value) && PyErr_ExceptionMatches(PyExc_AttributeError)) {
+        PyErr_Format(PyExc_ImportError,
+        #if PY_MAJOR_VERSION < 3
+            "cannot import name %.230s", PyString_AS_STRING(name));
+        #else
+            "cannot import name %S", name);
+        #endif
+    }
+    return value;
+}
+
+/* CLineInTraceback */
+      #ifndef CYTHON_CLINE_IN_TRACEBACK
+static int __Pyx_CLineForTraceback(CYTHON_UNUSED PyThreadState *tstate, int c_line) {
+    PyObject *use_cline;
+    PyObject *ptype, *pvalue, *ptraceback;
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyObject **cython_runtime_dict;
+#endif
+    __Pyx_ErrFetchInState(tstate, &ptype, &pvalue, &ptraceback);
+#if CYTHON_COMPILING_IN_CPYTHON
+    cython_runtime_dict = _PyObject_GetDictPtr(__pyx_cython_runtime);
+    if (likely(cython_runtime_dict)) {
+      use_cline = PyDict_GetItem(*cython_runtime_dict, __pyx_n_s_cline_in_traceback);
+    } else
+#endif
+    {
+      PyObject *use_cline_obj = __Pyx_PyObject_GetAttrStr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback);
+      if (use_cline_obj) {
+        use_cline = PyObject_Not(use_cline_obj) ? Py_False : Py_True;
+        Py_DECREF(use_cline_obj);
+      } else {
+        PyErr_Clear();
+        use_cline = NULL;
+      }
+    }
+    if (!use_cline) {
+        c_line = 0;
+        PyObject_SetAttr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback, Py_False);
+    }
+    else if (PyObject_Not(use_cline) != 0) {
+        c_line = 0;
+    }
+    __Pyx_ErrRestoreInState(tstate, ptype, pvalue, ptraceback);
+    return c_line;
+}
+#endif
+
+/* CodeObjectCache */
+      static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line) {
+    int start = 0, mid = 0, end = count - 1;
+    if (end >= 0 && code_line > entries[end].code_line) {
+        return count;
+    }
+    while (start < end) {
+        mid = start + (end - start) / 2;
+        if (code_line < entries[mid].code_line) {
+            end = mid;
+        } else if (code_line > entries[mid].code_line) {
+             start = mid + 1;
+        } else {
+            return mid;
+        }
+    }
+    if (code_line <= entries[mid].code_line) {
+        return mid;
+    } else {
+        return mid + 1;
+    }
+}
+static PyCodeObject *__pyx_find_code_object(int code_line) {
+    PyCodeObject* code_object;
+    int pos;
+    if (unlikely(!code_line) || unlikely(!__pyx_code_cache.entries)) {
+        return NULL;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if (unlikely(pos >= __pyx_code_cache.count) || unlikely(__pyx_code_cache.entries[pos].code_line != code_line)) {
+        return NULL;
+    }
+    code_object = __pyx_code_cache.entries[pos].code_object;
+    Py_INCREF(code_object);
+    return code_object;
+}
+static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
+    int pos, i;
+    __Pyx_CodeObjectCacheEntry* entries = __pyx_code_cache.entries;
+    if (unlikely(!code_line)) {
+        return;
+    }
+    if (unlikely(!entries)) {
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Malloc(64*sizeof(__Pyx_CodeObjectCacheEntry));
+        if (likely(entries)) {
+            __pyx_code_cache.entries = entries;
+            __pyx_code_cache.max_count = 64;
+            __pyx_code_cache.count = 1;
+            entries[0].code_line = code_line;
+            entries[0].code_object = code_object;
+            Py_INCREF(code_object);
+        }
+        return;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if ((pos < __pyx_code_cache.count) && unlikely(__pyx_code_cache.entries[pos].code_line == code_line)) {
+        PyCodeObject* tmp = entries[pos].code_object;
+        entries[pos].code_object = code_object;
+        Py_DECREF(tmp);
+        return;
+    }
+    if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
+        int new_max = __pyx_code_cache.max_count + 64;
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
+            __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry));
+        if (unlikely(!entries)) {
+            return;
+        }
+        __pyx_code_cache.entries = entries;
+        __pyx_code_cache.max_count = new_max;
+    }
+    for (i=__pyx_code_cache.count; i>pos; i--) {
+        entries[i] = entries[i-1];
+    }
+    entries[pos].code_line = code_line;
+    entries[pos].code_object = code_object;
+    __pyx_code_cache.count++;
+    Py_INCREF(code_object);
+}
+
+/* AddTraceback */
+      #include "compile.h"
+#include "frameobject.h"
+#include "traceback.h"
+static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
+            const char *funcname, int c_line,
+            int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyObject *py_srcfile = 0;
+    PyObject *py_funcname = 0;
+    #if PY_MAJOR_VERSION < 3
+    py_srcfile = PyString_FromString(filename);
+    #else
+    py_srcfile = PyUnicode_FromString(filename);
+    #endif
+    if (!py_srcfile) goto bad;
+    if (c_line) {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #else
+        py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #endif
+    }
+    else {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromString(funcname);
+        #else
+        py_funcname = PyUnicode_FromString(funcname);
+        #endif
+    }
+    if (!py_funcname) goto bad;
+    py_code = __Pyx_PyCode_New(
+        0,
+        0,
+        0,
+        0,
+        0,
+        __pyx_empty_bytes, /*PyObject *code,*/
+        __pyx_empty_tuple, /*PyObject *consts,*/
+        __pyx_empty_tuple, /*PyObject *names,*/
+        __pyx_empty_tuple, /*PyObject *varnames,*/
+        __pyx_empty_tuple, /*PyObject *freevars,*/
+        __pyx_empty_tuple, /*PyObject *cellvars,*/
+        py_srcfile,   /*PyObject *filename,*/
+        py_funcname,  /*PyObject *name,*/
+        py_line,
+        __pyx_empty_bytes  /*PyObject *lnotab*/
+    );
+    Py_DECREF(py_srcfile);
+    Py_DECREF(py_funcname);
+    return py_code;
+bad:
+    Py_XDECREF(py_srcfile);
+    Py_XDECREF(py_funcname);
+    return NULL;
+}
+static void __Pyx_AddTraceback(const char *funcname, int c_line,
+                               int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyFrameObject *py_frame = 0;
+    PyThreadState *tstate = __Pyx_PyThreadState_Current;
+    if (c_line) {
+        c_line = __Pyx_CLineForTraceback(tstate, c_line);
+    }
+    py_code = __pyx_find_code_object(c_line ? -c_line : py_line);
+    if (!py_code) {
+        py_code = __Pyx_CreateCodeObjectForTraceback(
+            funcname, c_line, py_line, filename);
+        if (!py_code) goto bad;
+        __pyx_insert_code_object(c_line ? -c_line : py_line, py_code);
+    }
+    py_frame = PyFrame_New(
+        tstate,            /*PyThreadState *tstate,*/
+        py_code,           /*PyCodeObject *code,*/
+        __pyx_d,    /*PyObject *globals,*/
+        0                  /*PyObject *locals*/
+    );
+    if (!py_frame) goto bad;
+    __Pyx_PyFrame_SetLineNumber(py_frame, py_line);
+    PyTraceBack_Here(py_frame);
+bad:
+    Py_XDECREF(py_code);
+    Py_XDECREF(py_frame);
+}
+
+/* CIntFromPyVerify */
+      #define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)\
+    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 0)
+#define __PYX_VERIFY_RETURN_INT_EXC(target_type, func_type, func_value)\
+    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 1)
+#define __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, exc)\
+    {\
+        func_type value = func_value;\
+        if (sizeof(target_type) < sizeof(func_type)) {\
+            if (unlikely(value != (func_type) (target_type) value)) {\
+                func_type zero = 0;\
+                if (exc && unlikely(value == (func_type)-1 && PyErr_Occurred()))\
+                    return (target_type) -1;\
+                if (is_unsigned && unlikely(value < zero))\
+                    goto raise_neg_overflow;\
+                else\
+                    goto raise_overflow;\
+            }\
+        }\
+        return (target_type) value;\
+    }
+
+/* CIntToPy */
+      static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
+    const int neg_one = (int) -1, const_zero = (int) 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(int) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(int) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
+            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
+#endif
+        }
+    } else {
+        if (sizeof(int) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
+            return PyLong_FromLongLong((PY_LONG_LONG) value);
+#endif
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(int),
+                                     little, !is_unsigned);
+    }
+}
+
+/* CIntFromPy */
+      static CYTHON_INLINE PY_LONG_LONG __Pyx_PyInt_As_PY_LONG_LONG(PyObject *x) {
+    const PY_LONG_LONG neg_one = (PY_LONG_LONG) -1, const_zero = (PY_LONG_LONG) 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(PY_LONG_LONG) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (PY_LONG_LONG) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (PY_LONG_LONG) 0;
+                case  1: __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, digit, digits[0])
+                case 2:
+                    if (8 * sizeof(PY_LONG_LONG) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(PY_LONG_LONG) >= 2 * PyLong_SHIFT) {
+                            return (PY_LONG_LONG) (((((PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0]));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(PY_LONG_LONG) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(PY_LONG_LONG) >= 3 * PyLong_SHIFT) {
+                            return (PY_LONG_LONG) (((((((PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0]));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(PY_LONG_LONG) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(PY_LONG_LONG) >= 4 * PyLong_SHIFT) {
+                            return (PY_LONG_LONG) (((((((((PY_LONG_LONG)digits[3]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0]));
+                        }
+                    }
+                    break;
+            }
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+#else
+            {
+                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                if (unlikely(result < 0))
+                    return (PY_LONG_LONG) -1;
+                if (unlikely(result == 1))
+                    goto raise_neg_overflow;
+            }
+#endif
+            if (sizeof(PY_LONG_LONG) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(PY_LONG_LONG, unsigned long, PyLong_AsUnsignedLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(PY_LONG_LONG) <= sizeof(unsigned PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(PY_LONG_LONG, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
+#endif
+            }
+        } else {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (PY_LONG_LONG) 0;
+                case -1: __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, sdigit, (sdigit) (-(sdigit)digits[0]))
+                case  1: __PYX_VERIFY_RETURN_INT(PY_LONG_LONG,  digit, +digits[0])
+                case -2:
+                    if (8 * sizeof(PY_LONG_LONG) - 1 > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) {
+                            return (PY_LONG_LONG) (((PY_LONG_LONG)-1)*(((((PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0])));
+                        }
+                    }
+                    break;
+                case 2:
+                    if (8 * sizeof(PY_LONG_LONG) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) {
+                            return (PY_LONG_LONG) ((((((PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0])));
+                        }
+                    }
+                    break;
+                case -3:
+                    if (8 * sizeof(PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(PY_LONG_LONG) - 1 > 3 * PyLong_SHIFT) {
+                            return (PY_LONG_LONG) (((PY_LONG_LONG)-1)*(((((((PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0])));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(PY_LONG_LONG) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(PY_LONG_LONG) - 1 > 3 * PyLong_SHIFT) {
+                            return (PY_LONG_LONG) ((((((((PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0])));
+                        }
+                    }
+                    break;
+                case -4:
+                    if (8 * sizeof(PY_LONG_LONG) - 1 > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(PY_LONG_LONG) - 1 > 4 * PyLong_SHIFT) {
+                            return (PY_LONG_LONG) (((PY_LONG_LONG)-1)*(((((((((PY_LONG_LONG)digits[3]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0])));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(PY_LONG_LONG) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(PY_LONG_LONG, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(PY_LONG_LONG) - 1 > 4 * PyLong_SHIFT) {
+                            return (PY_LONG_LONG) ((((((((((PY_LONG_LONG)digits[3]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (PY_LONG_LONG)digits[0])));
+                        }
+                    }
+                    break;
+            }
+#endif
+            if (sizeof(PY_LONG_LONG) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(PY_LONG_LONG, long, PyLong_AsLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(PY_LONG_LONG) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(PY_LONG_LONG, PY_LONG_LONG, PyLong_AsLongLong(x))
+#endif
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            PY_LONG_LONG val;
+            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (PY_LONG_LONG) -1;
+        }
+    } else {
+        PY_LONG_LONG val;
+        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
+        if (!tmp) return (PY_LONG_LONG) -1;
+        val = __Pyx_PyInt_As_PY_LONG_LONG(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to PY_LONG_LONG");
+    return (PY_LONG_LONG) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to PY_LONG_LONG");
+    return (PY_LONG_LONG) -1;
+}
+
+/* CIntFromPy */
+      static CYTHON_INLINE unsigned PY_LONG_LONG __Pyx_PyInt_As_unsigned_PY_LONG_LONG(PyObject *x) {
+    const unsigned PY_LONG_LONG neg_one = (unsigned PY_LONG_LONG) -1, const_zero = (unsigned PY_LONG_LONG) 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(unsigned PY_LONG_LONG) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (unsigned PY_LONG_LONG) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (unsigned PY_LONG_LONG) 0;
+                case  1: __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, digit, digits[0])
+                case 2:
+                    if (8 * sizeof(unsigned PY_LONG_LONG) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned PY_LONG_LONG) >= 2 * PyLong_SHIFT) {
+                            return (unsigned PY_LONG_LONG) (((((unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(unsigned PY_LONG_LONG) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned PY_LONG_LONG) >= 3 * PyLong_SHIFT) {
+                            return (unsigned PY_LONG_LONG) (((((((unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(unsigned PY_LONG_LONG) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned PY_LONG_LONG) >= 4 * PyLong_SHIFT) {
+                            return (unsigned PY_LONG_LONG) (((((((((unsigned PY_LONG_LONG)digits[3]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0]));
+                        }
+                    }
+                    break;
+            }
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+#else
+            {
+                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                if (unlikely(result < 0))
+                    return (unsigned PY_LONG_LONG) -1;
+                if (unlikely(result == 1))
+                    goto raise_neg_overflow;
+            }
+#endif
+            if (sizeof(unsigned PY_LONG_LONG) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(unsigned PY_LONG_LONG, unsigned long, PyLong_AsUnsignedLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(unsigned PY_LONG_LONG) <= sizeof(unsigned PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(unsigned PY_LONG_LONG, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
+#endif
+            }
+        } else {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (unsigned PY_LONG_LONG) 0;
+                case -1: __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, sdigit, (sdigit) (-(sdigit)digits[0]))
+                case  1: __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG,  digit, +digits[0])
+                case -2:
+                    if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) {
+                            return (unsigned PY_LONG_LONG) (((unsigned PY_LONG_LONG)-1)*(((((unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0])));
+                        }
+                    }
+                    break;
+                case 2:
+                    if (8 * sizeof(unsigned PY_LONG_LONG) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) {
+                            return (unsigned PY_LONG_LONG) ((((((unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0])));
+                        }
+                    }
+                    break;
+                case -3:
+                    if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 3 * PyLong_SHIFT) {
+                            return (unsigned PY_LONG_LONG) (((unsigned PY_LONG_LONG)-1)*(((((((unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0])));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(unsigned PY_LONG_LONG) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 3 * PyLong_SHIFT) {
+                            return (unsigned PY_LONG_LONG) ((((((((unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0])));
+                        }
+                    }
+                    break;
+                case -4:
+                    if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 4 * PyLong_SHIFT) {
+                            return (unsigned PY_LONG_LONG) (((unsigned PY_LONG_LONG)-1)*(((((((((unsigned PY_LONG_LONG)digits[3]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0])));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(unsigned PY_LONG_LONG) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(unsigned PY_LONG_LONG, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(unsigned PY_LONG_LONG) - 1 > 4 * PyLong_SHIFT) {
+                            return (unsigned PY_LONG_LONG) ((((((((((unsigned PY_LONG_LONG)digits[3]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[2]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[1]) << PyLong_SHIFT) | (unsigned PY_LONG_LONG)digits[0])));
+                        }
+                    }
+                    break;
+            }
+#endif
+            if (sizeof(unsigned PY_LONG_LONG) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(unsigned PY_LONG_LONG, long, PyLong_AsLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(unsigned PY_LONG_LONG) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(unsigned PY_LONG_LONG, PY_LONG_LONG, PyLong_AsLongLong(x))
+#endif
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            unsigned PY_LONG_LONG val;
+            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (unsigned PY_LONG_LONG) -1;
+        }
+    } else {
+        unsigned PY_LONG_LONG val;
+        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
+        if (!tmp) return (unsigned PY_LONG_LONG) -1;
+        val = __Pyx_PyInt_As_unsigned_PY_LONG_LONG(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to unsigned PY_LONG_LONG");
+    return (unsigned PY_LONG_LONG) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to unsigned PY_LONG_LONG");
+    return (unsigned PY_LONG_LONG) -1;
+}
+
+/* CIntFromPy */
+      static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
+    const long neg_one = (long) -1, const_zero = (long) 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(long) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(long, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (long) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (long) 0;
+                case  1: __PYX_VERIFY_RETURN_INT(long, digit, digits[0])
+                case 2:
+                    if (8 * sizeof(long) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) >= 2 * PyLong_SHIFT) {
+                            return (long) (((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(long) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) >= 3 * PyLong_SHIFT) {
+                            return (long) (((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(long) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) >= 4 * PyLong_SHIFT) {
+                            return (long) (((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+                        }
+                    }
+                    break;
+            }
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+#else
+            {
+                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                if (unlikely(result < 0))
+                    return (long) -1;
+                if (unlikely(result == 1))
+                    goto raise_neg_overflow;
+            }
+#endif
+            if (sizeof(long) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(long, unsigned long, PyLong_AsUnsignedLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(long, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
+#endif
+            }
+        } else {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (long) 0;
+                case -1: __PYX_VERIFY_RETURN_INT(long, sdigit, (sdigit) (-(sdigit)digits[0]))
+                case  1: __PYX_VERIFY_RETURN_INT(long,  digit, +digits[0])
+                case -2:
+                    if (8 * sizeof(long) - 1 > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
+                            return (long) (((long)-1)*(((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case 2:
+                    if (8 * sizeof(long) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
+                            return (long) ((((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case -3:
+                    if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
+                            return (long) (((long)-1)*(((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(long) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
+                            return (long) ((((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case -4:
+                    if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
+                            return (long) (((long)-1)*(((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(long) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
+                            return (long) ((((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+            }
+#endif
+            if (sizeof(long) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(long, long, PyLong_AsLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(long, PY_LONG_LONG, PyLong_AsLongLong(x))
+#endif
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            long val;
+            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (long) -1;
+        }
+    } else {
+        long val;
+        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
+        if (!tmp) return (long) -1;
+        val = __Pyx_PyInt_As_long(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to long");
+    return (long) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to long");
+    return (long) -1;
+}
+
+/* CIntFromPy */
+      static CYTHON_INLINE char __Pyx_PyInt_As_char(PyObject *x) {
+    const char neg_one = (char) -1, const_zero = (char) 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(char) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(char, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (char) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (char) 0;
+                case  1: __PYX_VERIFY_RETURN_INT(char, digit, digits[0])
+                case 2:
+                    if (8 * sizeof(char) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) >= 2 * PyLong_SHIFT) {
+                            return (char) (((((char)digits[1]) << PyLong_SHIFT) | (char)digits[0]));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(char) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) >= 3 * PyLong_SHIFT) {
+                            return (char) (((((((char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0]));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(char) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) >= 4 * PyLong_SHIFT) {
+                            return (char) (((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0]));
+                        }
+                    }
+                    break;
+            }
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+#else
+            {
+                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                if (unlikely(result < 0))
+                    return (char) -1;
+                if (unlikely(result == 1))
+                    goto raise_neg_overflow;
+            }
+#endif
+            if (sizeof(char) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(char, unsigned long, PyLong_AsUnsignedLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(char) <= sizeof(unsigned PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(char, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
+#endif
+            }
+        } else {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (char) 0;
+                case -1: __PYX_VERIFY_RETURN_INT(char, sdigit, (sdigit) (-(sdigit)digits[0]))
+                case  1: __PYX_VERIFY_RETURN_INT(char,  digit, +digits[0])
+                case -2:
+                    if (8 * sizeof(char) - 1 > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) - 1 > 2 * PyLong_SHIFT) {
+                            return (char) (((char)-1)*(((((char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        }
+                    }
+                    break;
+                case 2:
+                    if (8 * sizeof(char) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) - 1 > 2 * PyLong_SHIFT) {
+                            return (char) ((((((char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        }
+                    }
+                    break;
+                case -3:
+                    if (8 * sizeof(char) - 1 > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) - 1 > 3 * PyLong_SHIFT) {
+                            return (char) (((char)-1)*(((((((char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(char) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) - 1 > 3 * PyLong_SHIFT) {
+                            return (char) ((((((((char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        }
+                    }
+                    break;
+                case -4:
+                    if (8 * sizeof(char) - 1 > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) - 1 > 4 * PyLong_SHIFT) {
+                            return (char) (((char)-1)*(((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(char) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(char, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(char) - 1 > 4 * PyLong_SHIFT) {
+                            return (char) ((((((((((char)digits[3]) << PyLong_SHIFT) | (char)digits[2]) << PyLong_SHIFT) | (char)digits[1]) << PyLong_SHIFT) | (char)digits[0])));
+                        }
+                    }
+                    break;
+            }
+#endif
+            if (sizeof(char) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(char, long, PyLong_AsLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(char) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(char, PY_LONG_LONG, PyLong_AsLongLong(x))
+#endif
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            char val;
+            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (char) -1;
+        }
+    } else {
+        char val;
+        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
+        if (!tmp) return (char) -1;
+        val = __Pyx_PyInt_As_char(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to char");
+    return (char) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to char");
+    return (char) -1;
+}
+
+/* CIntToPy */
+      static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
+    const long neg_one = (long) -1, const_zero = (long) 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(long) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
+            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
+#endif
+        }
+    } else {
+        if (sizeof(long) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
+            return PyLong_FromLongLong((PY_LONG_LONG) value);
+#endif
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(long),
+                                     little, !is_unsigned);
+    }
+}
+
+/* CIntFromPy */
+      static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
+    const int neg_one = (int) -1, const_zero = (int) 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(int) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(int, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (int) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (int) 0;
+                case  1: __PYX_VERIFY_RETURN_INT(int, digit, digits[0])
+                case 2:
+                    if (8 * sizeof(int) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) >= 2 * PyLong_SHIFT) {
+                            return (int) (((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(int) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) >= 3 * PyLong_SHIFT) {
+                            return (int) (((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(int) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) >= 4 * PyLong_SHIFT) {
+                            return (int) (((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+                        }
+                    }
+                    break;
+            }
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+#else
+            {
+                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                if (unlikely(result < 0))
+                    return (int) -1;
+                if (unlikely(result == 1))
+                    goto raise_neg_overflow;
+            }
+#endif
+            if (sizeof(int) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(int, unsigned long, PyLong_AsUnsignedLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(int, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
+#endif
+            }
+        } else {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (int) 0;
+                case -1: __PYX_VERIFY_RETURN_INT(int, sdigit, (sdigit) (-(sdigit)digits[0]))
+                case  1: __PYX_VERIFY_RETURN_INT(int,  digit, +digits[0])
+                case -2:
+                    if (8 * sizeof(int) - 1 > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
+                            return (int) (((int)-1)*(((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case 2:
+                    if (8 * sizeof(int) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
+                            return (int) ((((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case -3:
+                    if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
+                            return (int) (((int)-1)*(((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(int) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
+                            return (int) ((((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case -4:
+                    if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) {
+                            return (int) (((int)-1)*(((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(int) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) {
+                            return (int) ((((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+            }
+#endif
+            if (sizeof(int) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(int, long, PyLong_AsLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(int, PY_LONG_LONG, PyLong_AsLongLong(x))
+#endif
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            int val;
+            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (int) -1;
+        }
+    } else {
+        int val;
+        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
+        if (!tmp) return (int) -1;
+        val = __Pyx_PyInt_As_int(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to int");
+    return (int) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to int");
+    return (int) -1;
+}
+
+/* FastTypeChecks */
+      #if CYTHON_COMPILING_IN_CPYTHON
+static int __Pyx_InBases(PyTypeObject *a, PyTypeObject *b) {
+    while (a) {
+        a = a->tp_base;
+        if (a == b)
+            return 1;
+    }
+    return b == &PyBaseObject_Type;
+}
+static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b) {
+    PyObject *mro;
+    if (a == b) return 1;
+    mro = a->tp_mro;
+    if (likely(mro)) {
+        Py_ssize_t i, n;
+        n = PyTuple_GET_SIZE(mro);
+        for (i = 0; i < n; i++) {
+            if (PyTuple_GET_ITEM(mro, i) == (PyObject *)b)
+                return 1;
+        }
+        return 0;
+    }
+    return __Pyx_InBases(a, b);
+}
+#if PY_MAJOR_VERSION == 2
+static int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject* exc_type2) {
+    PyObject *exception, *value, *tb;
+    int res;
+    __Pyx_PyThreadState_declare
+    __Pyx_PyThreadState_assign
+    __Pyx_ErrFetch(&exception, &value, &tb);
+    res = exc_type1 ? PyObject_IsSubclass(err, exc_type1) : 0;
+    if (unlikely(res == -1)) {
+        PyErr_WriteUnraisable(err);
+        res = 0;
+    }
+    if (!res) {
+        res = PyObject_IsSubclass(err, exc_type2);
+        if (unlikely(res == -1)) {
+            PyErr_WriteUnraisable(err);
+            res = 0;
+        }
+    }
+    __Pyx_ErrRestore(exception, value, tb);
+    return res;
+}
+#else
+static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject *exc_type2) {
+    int res = exc_type1 ? __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type1) : 0;
+    if (!res) {
+        res = __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type2);
+    }
+    return res;
+}
+#endif
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
+    if (likely(err == exc_type)) return 1;
+    if (likely(PyExceptionClass_Check(err))) {
+        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+    }
+    return PyErr_GivenExceptionMatches(err, exc_type);
+}
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
+    if (likely(err == exc_type1 || err == exc_type2)) return 1;
+    if (likely(PyExceptionClass_Check(err))) {
+        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
+    }
+    return (PyErr_GivenExceptionMatches(err, exc_type1) || PyErr_GivenExceptionMatches(err, exc_type2));
+}
+#endif
+
+/* CheckBinaryVersion */
+      static int __Pyx_check_binary_version(void) {
+    char ctversion[4], rtversion[4];
+    PyOS_snprintf(ctversion, 4, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION);
+    PyOS_snprintf(rtversion, 4, "%s", Py_GetVersion());
+    if (ctversion[0] != rtversion[0] || ctversion[2] != rtversion[2]) {
+        char message[200];
+        PyOS_snprintf(message, sizeof(message),
+                      "compiletime version %s of module '%.100s' "
+                      "does not match runtime version %s",
+                      ctversion, __Pyx_MODULE_NAME, rtversion);
+        return PyErr_WarnEx(NULL, message, 1);
+    }
+    return 0;
+}
+
+/* ModuleImport */
+      #ifndef __PYX_HAVE_RT_ImportModule
+#define __PYX_HAVE_RT_ImportModule
+static PyObject *__Pyx_ImportModule(const char *name) {
+    PyObject *py_name = 0;
+    PyObject *py_module = 0;
+    py_name = __Pyx_PyIdentifier_FromString(name);
+    if (!py_name)
+        goto bad;
+    py_module = PyImport_Import(py_name);
+    Py_DECREF(py_name);
+    return py_module;
+bad:
+    Py_XDECREF(py_name);
+    return 0;
+}
+#endif
+
+/* TypeImport */
+      #ifndef __PYX_HAVE_RT_ImportType
+#define __PYX_HAVE_RT_ImportType
+static PyTypeObject *__Pyx_ImportType(const char *module_name, const char *class_name,
+    size_t size, int strict)
+{
+    PyObject *py_module = 0;
+    PyObject *result = 0;
+    PyObject *py_name = 0;
+    char warning[200];
+    Py_ssize_t basicsize;
+#ifdef Py_LIMITED_API
+    PyObject *py_basicsize;
+#endif
+    py_module = __Pyx_ImportModule(module_name);
+    if (!py_module)
+        goto bad;
+    py_name = __Pyx_PyIdentifier_FromString(class_name);
+    if (!py_name)
+        goto bad;
+    result = PyObject_GetAttr(py_module, py_name);
+    Py_DECREF(py_name);
+    py_name = 0;
+    Py_DECREF(py_module);
+    py_module = 0;
+    if (!result)
+        goto bad;
+    if (!PyType_Check(result)) {
+        PyErr_Format(PyExc_TypeError,
+            "%.200s.%.200s is not a type object",
+            module_name, class_name);
+        goto bad;
+    }
+#ifndef Py_LIMITED_API
+    basicsize = ((PyTypeObject *)result)->tp_basicsize;
+#else
+    py_basicsize = PyObject_GetAttrString(result, "__basicsize__");
+    if (!py_basicsize)
+        goto bad;
+    basicsize = PyLong_AsSsize_t(py_basicsize);
+    Py_DECREF(py_basicsize);
+    py_basicsize = 0;
+    if (basicsize == (Py_ssize_t)-1 && PyErr_Occurred())
+        goto bad;
+#endif
+    if (!strict && (size_t)basicsize > size) {
+        PyOS_snprintf(warning, sizeof(warning),
+            "%s.%s size changed, may indicate binary incompatibility. Expected %zd, got %zd",
+            module_name, class_name, basicsize, size);
+        if (PyErr_WarnEx(NULL, warning, 0) < 0) goto bad;
+    }
+    else if ((size_t)basicsize != size) {
+        PyErr_Format(PyExc_ValueError,
+            "%.200s.%.200s has the wrong size, try recompiling. Expected %zd, got %zd",
+            module_name, class_name, basicsize, size);
+        goto bad;
+    }
+    return (PyTypeObject *)result;
+bad:
+    Py_XDECREF(py_module);
+    Py_XDECREF(result);
+    return NULL;
+}
+#endif
+
+/* InitStrings */
+      static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
+    while (t->p) {
+        #if PY_MAJOR_VERSION < 3
+        if (t->is_unicode) {
+            *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL);
+        } else if (t->intern) {
+            *t->p = PyString_InternFromString(t->s);
+        } else {
+            *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
+        }
+        #else
+        if (t->is_unicode | t->is_str) {
+            if (t->intern) {
+                *t->p = PyUnicode_InternFromString(t->s);
+            } else if (t->encoding) {
+                *t->p = PyUnicode_Decode(t->s, t->n - 1, t->encoding, NULL);
+            } else {
+                *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1);
+            }
+        } else {
+            *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1);
+        }
+        #endif
+        if (!*t->p)
+            return -1;
+        if (PyObject_Hash(*t->p) == -1)
+            PyErr_Clear();
+        ++t;
+    }
+    return 0;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char* c_str) {
+    return __Pyx_PyUnicode_FromStringAndSize(c_str, (Py_ssize_t)strlen(c_str));
+}
+static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject* o) {
+    Py_ssize_t ignore;
+    return __Pyx_PyObject_AsStringAndSize(o, &ignore);
+}
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+#if !CYTHON_PEP393_ENABLED
+static const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+    char* defenc_c;
+    PyObject* defenc = _PyUnicode_AsDefaultEncodedString(o, NULL);
+    if (!defenc) return NULL;
+    defenc_c = PyBytes_AS_STRING(defenc);
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+    {
+        char* end = defenc_c + PyBytes_GET_SIZE(defenc);
+        char* c;
+        for (c = defenc_c; c < end; c++) {
+            if ((unsigned char) (*c) >= 128) {
+                PyUnicode_AsASCIIString(o);
+                return NULL;
+            }
+        }
+    }
+#endif
+    *length = PyBytes_GET_SIZE(defenc);
+    return defenc_c;
+}
+#else
+static CYTHON_INLINE const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+    if (unlikely(__Pyx_PyUnicode_READY(o) == -1)) return NULL;
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+    if (likely(PyUnicode_IS_ASCII(o))) {
+        *length = PyUnicode_GET_LENGTH(o);
+        return PyUnicode_AsUTF8(o);
+    } else {
+        PyUnicode_AsASCIIString(o);
+        return NULL;
+    }
+#else
+    return PyUnicode_AsUTF8AndSize(o, length);
+#endif
+}
+#endif
+#endif
+static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+    if (
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+            __Pyx_sys_getdefaultencoding_not_ascii &&
+#endif
+            PyUnicode_Check(o)) {
+        return __Pyx_PyUnicode_AsStringAndSize(o, length);
+    } else
+#endif
+#if (!CYTHON_COMPILING_IN_PYPY) || (defined(PyByteArray_AS_STRING) && defined(PyByteArray_GET_SIZE))
+    if (PyByteArray_Check(o)) {
+        *length = PyByteArray_GET_SIZE(o);
+        return PyByteArray_AS_STRING(o);
+    } else
+#endif
+    {
+        char* result;
+        int r = PyBytes_AsStringAndSize(o, &result, length);
+        if (unlikely(r < 0)) {
+            return NULL;
+        } else {
+            return result;
+        }
+    }
+}
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
+   int is_true = x == Py_True;
+   if (is_true | (x == Py_False) | (x == Py_None)) return is_true;
+   else return PyObject_IsTrue(x);
+}
+static PyObject* __Pyx_PyNumber_IntOrLongWrongResultType(PyObject* result, const char* type_name) {
+#if PY_MAJOR_VERSION >= 3
+    if (PyLong_Check(result)) {
+        if (PyErr_WarnFormat(PyExc_DeprecationWarning, 1,
+                "__int__ returned non-int (type %.200s).  "
+                "The ability to return an instance of a strict subclass of int "
+                "is deprecated, and may be removed in a future version of Python.",
+                Py_TYPE(result)->tp_name)) {
+            Py_DECREF(result);
+            return NULL;
+        }
+        return result;
+    }
+#endif
+    PyErr_Format(PyExc_TypeError,
+                 "__%.4s__ returned non-%.4s (type %.200s)",
+                 type_name, type_name, Py_TYPE(result)->tp_name);
+    Py_DECREF(result);
+    return NULL;
+}
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x) {
+#if CYTHON_USE_TYPE_SLOTS
+  PyNumberMethods *m;
+#endif
+  const char *name = NULL;
+  PyObject *res = NULL;
+#if PY_MAJOR_VERSION < 3
+  if (likely(PyInt_Check(x) || PyLong_Check(x)))
+#else
+  if (likely(PyLong_Check(x)))
+#endif
+    return __Pyx_NewRef(x);
+#if CYTHON_USE_TYPE_SLOTS
+  m = Py_TYPE(x)->tp_as_number;
+  #if PY_MAJOR_VERSION < 3
+  if (m && m->nb_int) {
+    name = "int";
+    res = m->nb_int(x);
+  }
+  else if (m && m->nb_long) {
+    name = "long";
+    res = m->nb_long(x);
+  }
+  #else
+  if (likely(m && m->nb_int)) {
+    name = "int";
+    res = m->nb_int(x);
+  }
+  #endif
+#else
+  if (!PyBytes_CheckExact(x) && !PyUnicode_CheckExact(x)) {
+    res = PyNumber_Int(x);
+  }
+#endif
+  if (likely(res)) {
+#if PY_MAJOR_VERSION < 3
+    if (unlikely(!PyInt_Check(res) && !PyLong_Check(res))) {
+#else
+    if (unlikely(!PyLong_CheckExact(res))) {
+#endif
+        return __Pyx_PyNumber_IntOrLongWrongResultType(res, name);
+    }
+  }
+  else if (!PyErr_Occurred()) {
+    PyErr_SetString(PyExc_TypeError,
+                    "an integer is required");
+  }
+  return res;
+}
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
+  Py_ssize_t ival;
+  PyObject *x;
+#if PY_MAJOR_VERSION < 3
+  if (likely(PyInt_CheckExact(b))) {
+    if (sizeof(Py_ssize_t) >= sizeof(long))
+        return PyInt_AS_LONG(b);
+    else
+        return PyInt_AsSsize_t(x);
+  }
+#endif
+  if (likely(PyLong_CheckExact(b))) {
+    #if CYTHON_USE_PYLONG_INTERNALS
+    const digit* digits = ((PyLongObject*)b)->ob_digit;
+    const Py_ssize_t size = Py_SIZE(b);
+    if (likely(__Pyx_sst_abs(size) <= 1)) {
+        ival = likely(size) ? digits[0] : 0;
+        if (size == -1) ival = -ival;
+        return ival;
+    } else {
+      switch (size) {
+         case 2:
+           if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) {
+             return (Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case -2:
+           if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) {
+             return -(Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case 3:
+           if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) {
+             return (Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case -3:
+           if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) {
+             return -(Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case 4:
+           if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) {
+             return (Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case -4:
+           if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) {
+             return -(Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+      }
+    }
+    #endif
+    return PyLong_AsSsize_t(b);
+  }
+  x = PyNumber_Index(b);
+  if (!x) return -1;
+  ival = PyInt_AsSsize_t(x);
+  Py_DECREF(x);
+  return ival;
+}
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
+    return PyInt_FromSize_t(ival);
+}
+
+
+#endif /* Py_PYTHON_H */

+ 357 - 0
src/borg/_msgpack/_packer.pyx

@@ -0,0 +1,357 @@
+# coding: utf-8
+#cython: embedsignature=True, c_string_encoding=ascii
+
+from cpython cimport *
+from cpython.version cimport PY_MAJOR_VERSION
+from cpython.exc cimport PyErr_WarnEx
+
+from msgpack.exceptions import PackValueError, PackOverflowError
+from msgpack import ExtType
+
+
+cdef extern from "Python.h":
+
+    int PyMemoryView_Check(object obj)
+    int PyByteArray_Check(object obj)
+    int PyByteArray_CheckExact(object obj)
+    char* PyUnicode_AsUTF8AndSize(object obj, Py_ssize_t *l) except NULL
+
+
+cdef extern from "pack.h":
+    struct msgpack_packer:
+        char* buf
+        size_t length
+        size_t buf_size
+        bint use_bin_type
+
+    int msgpack_pack_int(msgpack_packer* pk, int d)
+    int msgpack_pack_nil(msgpack_packer* pk)
+    int msgpack_pack_true(msgpack_packer* pk)
+    int msgpack_pack_false(msgpack_packer* pk)
+    int msgpack_pack_long(msgpack_packer* pk, long d)
+    int msgpack_pack_long_long(msgpack_packer* pk, long long d)
+    int msgpack_pack_unsigned_long_long(msgpack_packer* pk, unsigned long long d)
+    int msgpack_pack_float(msgpack_packer* pk, float d)
+    int msgpack_pack_double(msgpack_packer* pk, double d)
+    int msgpack_pack_array(msgpack_packer* pk, size_t l)
+    int msgpack_pack_map(msgpack_packer* pk, size_t l)
+    int msgpack_pack_raw(msgpack_packer* pk, size_t l)
+    int msgpack_pack_bin(msgpack_packer* pk, size_t l)
+    int msgpack_pack_raw_body(msgpack_packer* pk, char* body, size_t l)
+    int msgpack_pack_ext(msgpack_packer* pk, char typecode, size_t l)
+    int msgpack_pack_unicode(msgpack_packer* pk, object o, long long limit)
+
+cdef int DEFAULT_RECURSE_LIMIT=511
+cdef long long ITEM_LIMIT = (2**32)-1
+
+
+cdef inline int PyBytesLike_Check(object o):
+    return PyBytes_Check(o) or PyByteArray_Check(o)
+
+
+cdef inline int PyBytesLike_CheckExact(object o):
+    return PyBytes_CheckExact(o) or PyByteArray_CheckExact(o)
+
+
+cdef class Packer(object):
+    """
+    MessagePack Packer
+
+    usage::
+
+        packer = Packer()
+        astream.write(packer.pack(a))
+        astream.write(packer.pack(b))
+
+    Packer's constructor has some keyword arguments:
+
+    :param callable default:
+        Convert user type to builtin type that Packer supports.
+        See also simplejson's document.
+
+    :param bool use_single_float:
+        Use single precision float type for float. (default: False)
+
+    :param bool autoreset:
+        Reset buffer after each pack and return its content as `bytes`. (default: True).
+        If set this to false, use `bytes()` to get content and `.reset()` to clear buffer.
+
+    :param bool use_bin_type:
+        Use bin type introduced in msgpack spec 2.0 for bytes.
+        It also enables str8 type for unicode.
+        Current default value is false, but it will be changed to true
+        in future version.  You should specify it explicitly.
+
+    :param bool strict_types:
+        If set to true, types will be checked to be exact. Derived classes
+        from serializeable types will not be serialized and will be
+        treated as unsupported type and forwarded to default.
+        Additionally tuples will not be serialized as lists.
+        This is useful when trying to implement accurate serialization
+        for python types.
+
+    :param str unicode_errors:
+        Error handler for encoding unicode. (default: 'strict')
+
+    :param str encoding:
+        (deprecated) Convert unicode to bytes with this encoding. (default: 'utf-8')
+    """
+    cdef msgpack_packer pk
+    cdef object _default
+    cdef object _bencoding
+    cdef object _berrors
+    cdef const char *encoding
+    cdef const char *unicode_errors
+    cdef bint strict_types
+    cdef bool use_float
+    cdef bint autoreset
+
+    def __cinit__(self):
+        cdef int buf_size = 1024*1024
+        self.pk.buf = <char*> PyMem_Malloc(buf_size)
+        if self.pk.buf == NULL:
+            raise MemoryError("Unable to allocate internal buffer.")
+        self.pk.buf_size = buf_size
+        self.pk.length = 0
+
+    def __init__(self, default=None, encoding=None, unicode_errors=None,
+                 bint use_single_float=False, bint autoreset=True, bint use_bin_type=False,
+                 bint strict_types=False):
+        if encoding is not None:
+            PyErr_WarnEx(PendingDeprecationWarning, "encoding is deprecated.", 1)
+        self.use_float = use_single_float
+        self.strict_types = strict_types
+        self.autoreset = autoreset
+        self.pk.use_bin_type = use_bin_type
+        if default is not None:
+            if not PyCallable_Check(default):
+                raise TypeError("default must be a callable.")
+        self._default = default
+
+        self._bencoding = encoding
+        if encoding is None:
+            if PY_MAJOR_VERSION < 3:
+                self.encoding = 'utf-8'
+            else:
+                self.encoding = NULL
+        else:
+            self.encoding = self._bencoding
+
+        self._berrors = unicode_errors
+        if unicode_errors is None:
+            self.unicode_errors = NULL
+        else:
+            self.unicode_errors = self._berrors
+
+    def __dealloc__(self):
+        PyMem_Free(self.pk.buf)
+        self.pk.buf = NULL
+
+    cdef int _pack(self, object o, int nest_limit=DEFAULT_RECURSE_LIMIT) except -1:
+        cdef long long llval
+        cdef unsigned long long ullval
+        cdef long longval
+        cdef float fval
+        cdef double dval
+        cdef char* rawval
+        cdef int ret
+        cdef dict d
+        cdef Py_ssize_t L
+        cdef int default_used = 0
+        cdef bint strict_types = self.strict_types
+        cdef Py_buffer view
+
+        if nest_limit < 0:
+            raise PackValueError("recursion limit exceeded.")
+
+        while True:
+            if o is None:
+                ret = msgpack_pack_nil(&self.pk)
+            elif PyBool_Check(o) if strict_types else isinstance(o, bool):
+                if o:
+                    ret = msgpack_pack_true(&self.pk)
+                else:
+                    ret = msgpack_pack_false(&self.pk)
+            elif PyLong_CheckExact(o) if strict_types else PyLong_Check(o):
+                # PyInt_Check(long) is True for Python 3.
+                # So we should test long before int.
+                try:
+                    if o > 0:
+                        ullval = o
+                        ret = msgpack_pack_unsigned_long_long(&self.pk, ullval)
+                    else:
+                        llval = o
+                        ret = msgpack_pack_long_long(&self.pk, llval)
+                except OverflowError as oe:
+                    if not default_used and self._default is not None:
+                        o = self._default(o)
+                        default_used = True
+                        continue
+                    else:
+                        raise PackOverflowError("Integer value out of range")
+            elif PyInt_CheckExact(o) if strict_types else PyInt_Check(o):
+                longval = o
+                ret = msgpack_pack_long(&self.pk, longval)
+            elif PyFloat_CheckExact(o) if strict_types else PyFloat_Check(o):
+                if self.use_float:
+                   fval = o
+                   ret = msgpack_pack_float(&self.pk, fval)
+                else:
+                   dval = o
+                   ret = msgpack_pack_double(&self.pk, dval)
+            elif PyBytesLike_CheckExact(o) if strict_types else PyBytesLike_Check(o):
+                L = len(o)
+                if L > ITEM_LIMIT:
+                    raise PackValueError("%s is too large" % type(o).__name__)
+                rawval = o
+                ret = msgpack_pack_bin(&self.pk, L)
+                if ret == 0:
+                    ret = msgpack_pack_raw_body(&self.pk, rawval, L)
+            elif PyUnicode_CheckExact(o) if strict_types else PyUnicode_Check(o):
+                if self.encoding == NULL and self.unicode_errors == NULL:
+                    ret = msgpack_pack_unicode(&self.pk, o, ITEM_LIMIT);
+                    if ret == -2:
+                        raise PackValueError("unicode string is too large")
+                else:
+                    o = PyUnicode_AsEncodedString(o, self.encoding, self.unicode_errors)
+                    L = len(o)
+                    if L > ITEM_LIMIT:
+                        raise PackValueError("unicode string is too large")
+                    ret = msgpack_pack_raw(&self.pk, L)
+                    if ret == 0:
+                        rawval = o
+                        ret = msgpack_pack_raw_body(&self.pk, rawval, L)
+            elif PyDict_CheckExact(o):
+                d = <dict>o
+                L = len(d)
+                if L > ITEM_LIMIT:
+                    raise PackValueError("dict is too large")
+                ret = msgpack_pack_map(&self.pk, L)
+                if ret == 0:
+                    for k, v in d.iteritems():
+                        ret = self._pack(k, nest_limit-1)
+                        if ret != 0: break
+                        ret = self._pack(v, nest_limit-1)
+                        if ret != 0: break
+            elif not strict_types and PyDict_Check(o):
+                L = len(o)
+                if L > ITEM_LIMIT:
+                    raise PackValueError("dict is too large")
+                ret = msgpack_pack_map(&self.pk, L)
+                if ret == 0:
+                    for k, v in o.items():
+                        ret = self._pack(k, nest_limit-1)
+                        if ret != 0: break
+                        ret = self._pack(v, nest_limit-1)
+                        if ret != 0: break
+            elif type(o) is ExtType if strict_types else isinstance(o, ExtType):
+                # This should be before Tuple because ExtType is namedtuple.
+                longval = o.code
+                rawval = o.data
+                L = len(o.data)
+                if L > ITEM_LIMIT:
+                    raise PackValueError("EXT data is too large")
+                ret = msgpack_pack_ext(&self.pk, longval, L)
+                ret = msgpack_pack_raw_body(&self.pk, rawval, L)
+            elif PyList_CheckExact(o) if strict_types else (PyTuple_Check(o) or PyList_Check(o)):
+                L = len(o)
+                if L > ITEM_LIMIT:
+                    raise PackValueError("list is too large")
+                ret = msgpack_pack_array(&self.pk, L)
+                if ret == 0:
+                    for v in o:
+                        ret = self._pack(v, nest_limit-1)
+                        if ret != 0: break
+            elif PyMemoryView_Check(o):
+                if PyObject_GetBuffer(o, &view, PyBUF_SIMPLE) != 0:
+                    raise PackValueError("could not get buffer for memoryview")
+                L = view.len
+                if L > ITEM_LIMIT:
+                    PyBuffer_Release(&view);
+                    raise PackValueError("memoryview is too large")
+                ret = msgpack_pack_bin(&self.pk, L)
+                if ret == 0:
+                    ret = msgpack_pack_raw_body(&self.pk, <char*>view.buf, L)
+                PyBuffer_Release(&view);
+            elif not default_used and self._default:
+                o = self._default(o)
+                default_used = 1
+                continue
+            else:
+                raise TypeError("can't serialize %r" % (o,))
+            return ret
+
+    cpdef pack(self, object obj):
+        cdef int ret
+        try:
+            ret = self._pack(obj, DEFAULT_RECURSE_LIMIT)
+        except:
+            self.pk.length = 0
+            raise
+        if ret:  # should not happen.
+            raise RuntimeError("internal error")
+        if self.autoreset:
+            buf = PyBytes_FromStringAndSize(self.pk.buf, self.pk.length)
+            self.pk.length = 0
+            return buf
+
+    def pack_ext_type(self, typecode, data):
+        msgpack_pack_ext(&self.pk, typecode, len(data))
+        msgpack_pack_raw_body(&self.pk, data, len(data))
+
+    def pack_array_header(self, long long size):
+        if size > ITEM_LIMIT:
+            raise PackValueError
+        cdef int ret = msgpack_pack_array(&self.pk, size)
+        if ret == -1:
+            raise MemoryError
+        elif ret:  # should not happen
+            raise TypeError
+        if self.autoreset:
+            buf = PyBytes_FromStringAndSize(self.pk.buf, self.pk.length)
+            self.pk.length = 0
+            return buf
+
+    def pack_map_header(self, long long size):
+        if size > ITEM_LIMIT:
+            raise PackValueError
+        cdef int ret = msgpack_pack_map(&self.pk, size)
+        if ret == -1:
+            raise MemoryError
+        elif ret:  # should not happen
+            raise TypeError
+        if self.autoreset:
+            buf = PyBytes_FromStringAndSize(self.pk.buf, self.pk.length)
+            self.pk.length = 0
+            return buf
+
+    def pack_map_pairs(self, object pairs):
+        """
+        Pack *pairs* as msgpack map type.
+
+        *pairs* should be a sequence of pairs.
+        (`len(pairs)` and `for k, v in pairs:` should be supported.)
+        """
+        cdef int ret = msgpack_pack_map(&self.pk, len(pairs))
+        if ret == 0:
+            for k, v in pairs:
+                ret = self._pack(k)
+                if ret != 0: break
+                ret = self._pack(v)
+                if ret != 0: break
+        if ret == -1:
+            raise MemoryError
+        elif ret:  # should not happen
+            raise TypeError
+        if self.autoreset:
+            buf = PyBytes_FromStringAndSize(self.pk.buf, self.pk.length)
+            self.pk.length = 0
+            return buf
+
+    def reset(self):
+        """Clear internal buffer."""
+        self.pk.length = 0
+
+    def bytes(self):
+        """Return buffer content."""
+        return PyBytes_FromStringAndSize(self.pk.buf, self.pk.length)

Những thai đổi đã bị hủy bỏ vì nó quá lớn
+ 6634 - 0
src/borg/_msgpack/_unpacker.cpp


+ 543 - 0
src/borg/_msgpack/_unpacker.pyx

@@ -0,0 +1,543 @@
+# coding: utf-8
+#cython: embedsignature=True, c_string_encoding=ascii
+
+from cpython.version cimport PY_MAJOR_VERSION
+from cpython.bytes cimport (
+    PyBytes_AsString,
+    PyBytes_FromStringAndSize,
+    PyBytes_Size,
+)
+from cpython.buffer cimport (
+    Py_buffer,
+    PyObject_CheckBuffer,
+    PyObject_GetBuffer,
+    PyBuffer_Release,
+    PyBuffer_IsContiguous,
+    PyBUF_READ,
+    PyBUF_SIMPLE,
+    PyBUF_FULL_RO,
+)
+from cpython.mem cimport PyMem_Malloc, PyMem_Free
+from cpython.object cimport PyCallable_Check
+from cpython.ref cimport Py_DECREF
+from cpython.exc cimport PyErr_WarnEx
+
+cdef extern from "Python.h":
+    ctypedef struct PyObject
+    cdef int PyObject_AsReadBuffer(object o, const void** buff, Py_ssize_t* buf_len) except -1
+    object PyMemoryView_GetContiguous(object obj, int buffertype, char order)
+
+from libc.stdlib cimport *
+from libc.string cimport *
+from libc.limits cimport *
+ctypedef unsigned long long uint64_t
+
+from msgpack.exceptions import (
+    BufferFull,
+    OutOfData,
+    UnpackValueError,
+    ExtraData,
+)
+from msgpack import ExtType
+
+
+cdef extern from "unpack.h":
+    ctypedef struct msgpack_user:
+        bint use_list
+        bint raw
+        bint has_pairs_hook # call object_hook with k-v pairs
+        PyObject* object_hook
+        PyObject* list_hook
+        PyObject* ext_hook
+        char *encoding
+        char *unicode_errors
+        Py_ssize_t max_str_len
+        Py_ssize_t max_bin_len
+        Py_ssize_t max_array_len
+        Py_ssize_t max_map_len
+        Py_ssize_t max_ext_len
+
+    ctypedef struct unpack_context:
+        msgpack_user user
+        PyObject* obj
+        Py_ssize_t count
+
+    ctypedef int (*execute_fn)(unpack_context* ctx, const char* data,
+                               Py_ssize_t len, Py_ssize_t* off) except? -1
+    execute_fn unpack_construct
+    execute_fn unpack_skip
+    execute_fn read_array_header
+    execute_fn read_map_header
+    void unpack_init(unpack_context* ctx)
+    object unpack_data(unpack_context* ctx)
+    void unpack_clear(unpack_context* ctx)
+
+cdef inline init_ctx(unpack_context *ctx,
+                     object object_hook, object object_pairs_hook,
+                     object list_hook, object ext_hook,
+                     bint use_list, bint raw,
+                     const char* encoding, const char* unicode_errors,
+                     Py_ssize_t max_str_len, Py_ssize_t max_bin_len,
+                     Py_ssize_t max_array_len, Py_ssize_t max_map_len,
+                     Py_ssize_t max_ext_len):
+    unpack_init(ctx)
+    ctx.user.use_list = use_list
+    ctx.user.raw = raw
+    ctx.user.object_hook = ctx.user.list_hook = <PyObject*>NULL
+    ctx.user.max_str_len = max_str_len
+    ctx.user.max_bin_len = max_bin_len
+    ctx.user.max_array_len = max_array_len
+    ctx.user.max_map_len = max_map_len
+    ctx.user.max_ext_len = max_ext_len
+
+    if object_hook is not None and object_pairs_hook is not None:
+        raise TypeError("object_pairs_hook and object_hook are mutually exclusive.")
+
+    if object_hook is not None:
+        if not PyCallable_Check(object_hook):
+            raise TypeError("object_hook must be a callable.")
+        ctx.user.object_hook = <PyObject*>object_hook
+
+    if object_pairs_hook is None:
+        ctx.user.has_pairs_hook = False
+    else:
+        if not PyCallable_Check(object_pairs_hook):
+            raise TypeError("object_pairs_hook must be a callable.")
+        ctx.user.object_hook = <PyObject*>object_pairs_hook
+        ctx.user.has_pairs_hook = True
+
+    if list_hook is not None:
+        if not PyCallable_Check(list_hook):
+            raise TypeError("list_hook must be a callable.")
+        ctx.user.list_hook = <PyObject*>list_hook
+
+    if ext_hook is not None:
+        if not PyCallable_Check(ext_hook):
+            raise TypeError("ext_hook must be a callable.")
+        ctx.user.ext_hook = <PyObject*>ext_hook
+
+    ctx.user.encoding = encoding
+    ctx.user.unicode_errors = unicode_errors
+
+def default_read_extended_type(typecode, data):
+    raise NotImplementedError("Cannot decode extended type with typecode=%d" % typecode)
+
+cdef inline int get_data_from_buffer(object obj,
+                                     Py_buffer *view,
+                                     char **buf,
+                                     Py_ssize_t *buffer_len,
+                                     int *new_protocol) except 0:
+    cdef object contiguous
+    cdef Py_buffer tmp
+    if PyObject_CheckBuffer(obj):
+        new_protocol[0] = 1
+        if PyObject_GetBuffer(obj, view, PyBUF_FULL_RO) == -1:
+            raise
+        if view.itemsize != 1:
+            PyBuffer_Release(view)
+            raise BufferError("cannot unpack from multi-byte object")
+        if PyBuffer_IsContiguous(view, 'A') == 0:
+            PyBuffer_Release(view)
+            # create a contiguous copy and get buffer
+            contiguous = PyMemoryView_GetContiguous(obj, PyBUF_READ, 'C')
+            PyObject_GetBuffer(contiguous, view, PyBUF_SIMPLE)
+            # view must hold the only reference to contiguous,
+            # so memory is freed when view is released
+            Py_DECREF(contiguous)
+        buffer_len[0] = view.len
+        buf[0] = <char*> view.buf
+        return 1
+    else:
+        new_protocol[0] = 0
+        if PyObject_AsReadBuffer(obj, <const void**> buf, buffer_len) == -1:
+            raise BufferError("could not get memoryview")
+        PyErr_WarnEx(RuntimeWarning,
+                     "using old buffer interface to unpack %s; "
+                     "this leads to unpacking errors if slicing is used and "
+                     "will be removed in a future version" % type(obj),
+                     1)
+        return 1
+
+def unpackb(object packed, object object_hook=None, object list_hook=None,
+            bint use_list=True, bint raw=True,
+            encoding=None, unicode_errors=None,
+            object_pairs_hook=None, ext_hook=ExtType,
+            Py_ssize_t max_str_len=2147483647, # 2**32-1
+            Py_ssize_t max_bin_len=2147483647,
+            Py_ssize_t max_array_len=2147483647,
+            Py_ssize_t max_map_len=2147483647,
+            Py_ssize_t max_ext_len=2147483647):
+    """
+    Unpack packed_bytes to object. Returns an unpacked object.
+
+    Raises `ValueError` when `packed` contains extra bytes.
+
+    See :class:`Unpacker` for options.
+    """
+    cdef unpack_context ctx
+    cdef Py_ssize_t off = 0
+    cdef int ret
+
+    cdef Py_buffer view
+    cdef char* buf = NULL
+    cdef Py_ssize_t buf_len
+    cdef const char* cenc = NULL
+    cdef const char* cerr = NULL
+    cdef int new_protocol = 0
+
+    if encoding is not None:
+        PyErr_WarnEx(PendingDeprecationWarning, "encoding is deprecated, Use raw=False instead.", 1)
+        cenc = encoding
+
+    if unicode_errors is not None:
+        cerr = unicode_errors
+
+    get_data_from_buffer(packed, &view, &buf, &buf_len, &new_protocol)
+    try:
+        init_ctx(&ctx, object_hook, object_pairs_hook, list_hook, ext_hook,
+                 use_list, raw, cenc, cerr,
+                 max_str_len, max_bin_len, max_array_len, max_map_len, max_ext_len)
+        ret = unpack_construct(&ctx, buf, buf_len, &off)
+    finally:
+        if new_protocol:
+            PyBuffer_Release(&view);
+
+    if ret == 1:
+        obj = unpack_data(&ctx)
+        if off < buf_len:
+            raise ExtraData(obj, PyBytes_FromStringAndSize(buf+off, buf_len-off))
+        return obj
+    unpack_clear(&ctx)
+    raise UnpackValueError("Unpack failed: error = %d" % (ret,))
+
+
+def unpack(object stream, **kwargs):
+    PyErr_WarnEx(
+        PendingDeprecationWarning,
+        "Direct calling implementation's unpack() is deprecated, Use msgpack.unpack() or unpackb() instead.", 1)
+    data = stream.read()
+    return unpackb(data, **kwargs)
+
+
+cdef class Unpacker(object):
+    """Streaming unpacker.
+
+    arguments:
+
+    :param file_like:
+        File-like object having `.read(n)` method.
+        If specified, unpacker reads serialized data from it and :meth:`feed()` is not usable.
+
+    :param int read_size:
+        Used as `file_like.read(read_size)`. (default: `min(1024**2, max_buffer_size)`)
+
+    :param bool use_list:
+        If true, unpack msgpack array to Python list.
+        Otherwise, unpack to Python tuple. (default: True)
+
+    :param bool raw:
+        If true, unpack msgpack raw to Python bytes (default).
+        Otherwise, unpack to Python str (or unicode on Python 2) by decoding
+        with UTF-8 encoding (recommended).
+        Currently, the default is true, but it will be changed to false in
+        near future.  So you must specify it explicitly for keeping backward
+        compatibility.
+
+        *encoding* option which is deprecated overrides this option.
+
+    :param callable object_hook:
+        When specified, it should be callable.
+        Unpacker calls it with a dict argument after unpacking msgpack map.
+        (See also simplejson)
+
+    :param callable object_pairs_hook:
+        When specified, it should be callable.
+        Unpacker calls it with a list of key-value pairs after unpacking msgpack map.
+        (See also simplejson)
+
+    :param int max_buffer_size:
+        Limits size of data waiting unpacked.  0 means system's INT_MAX (default).
+        Raises `BufferFull` exception when it is insufficient.
+        You should set this parameter when unpacking data from untrusted source.
+
+    :param int max_str_len:
+        Limits max length of str. (default: 2**31-1)
+
+    :param int max_bin_len:
+        Limits max length of bin. (default: 2**31-1)
+
+    :param int max_array_len:
+        Limits max length of array. (default: 2**31-1)
+
+    :param int max_map_len:
+        Limits max length of map. (default: 2**31-1)
+
+    :param str encoding:
+        Deprecated, use raw instead.
+        Encoding used for decoding msgpack raw.
+        If it is None (default), msgpack raw is deserialized to Python bytes.
+
+    :param str unicode_errors:
+        Error handler used for decoding str type.  (default: `'strict'`)
+
+
+    Example of streaming deserialize from file-like object::
+
+        unpacker = Unpacker(file_like, raw=False)
+        for o in unpacker:
+            process(o)
+
+    Example of streaming deserialize from socket::
+
+        unpacker = Unpacker(raw=False)
+        while True:
+            buf = sock.recv(1024**2)
+            if not buf:
+                break
+            unpacker.feed(buf)
+            for o in unpacker:
+                process(o)
+    """
+    cdef unpack_context ctx
+    cdef char* buf
+    cdef Py_ssize_t buf_size, buf_head, buf_tail
+    cdef object file_like
+    cdef object file_like_read
+    cdef Py_ssize_t read_size
+    # To maintain refcnt.
+    cdef object object_hook, object_pairs_hook, list_hook, ext_hook
+    cdef object encoding, unicode_errors
+    cdef Py_ssize_t max_buffer_size
+    cdef uint64_t stream_offset
+
+    def __cinit__(self):
+        self.buf = NULL
+
+    def __dealloc__(self):
+        PyMem_Free(self.buf)
+        self.buf = NULL
+
+    def __init__(self, file_like=None, Py_ssize_t read_size=0,
+                 bint use_list=True, bint raw=True,
+                 object object_hook=None, object object_pairs_hook=None, object list_hook=None,
+                 encoding=None, unicode_errors=None, int max_buffer_size=0,
+                 object ext_hook=ExtType,
+                 Py_ssize_t max_str_len=2147483647, # 2**32-1
+                 Py_ssize_t max_bin_len=2147483647,
+                 Py_ssize_t max_array_len=2147483647,
+                 Py_ssize_t max_map_len=2147483647,
+                 Py_ssize_t max_ext_len=2147483647):
+        cdef const char *cenc=NULL,
+        cdef const char *cerr=NULL
+
+        self.object_hook = object_hook
+        self.object_pairs_hook = object_pairs_hook
+        self.list_hook = list_hook
+        self.ext_hook = ext_hook
+
+        self.file_like = file_like
+        if file_like:
+            self.file_like_read = file_like.read
+            if not PyCallable_Check(self.file_like_read):
+                raise TypeError("`file_like.read` must be a callable.")
+        if not max_buffer_size:
+            max_buffer_size = INT_MAX
+        if read_size > max_buffer_size:
+            raise ValueError("read_size should be less or equal to max_buffer_size")
+        if not read_size:
+            read_size = min(max_buffer_size, 1024**2)
+        self.max_buffer_size = max_buffer_size
+        self.read_size = read_size
+        self.buf = <char*>PyMem_Malloc(read_size)
+        if self.buf == NULL:
+            raise MemoryError("Unable to allocate internal buffer.")
+        self.buf_size = read_size
+        self.buf_head = 0
+        self.buf_tail = 0
+        self.stream_offset = 0
+
+        if encoding is not None:
+            PyErr_WarnEx(PendingDeprecationWarning, "encoding is deprecated, Use raw=False instead.", 1)
+            self.encoding = encoding
+            cenc = encoding
+
+        if unicode_errors is not None:
+            self.unicode_errors = unicode_errors
+            cerr = unicode_errors
+
+        init_ctx(&self.ctx, object_hook, object_pairs_hook, list_hook,
+                 ext_hook, use_list, raw, cenc, cerr,
+                 max_str_len, max_bin_len, max_array_len,
+                 max_map_len, max_ext_len)
+
+    def feed(self, object next_bytes):
+        """Append `next_bytes` to internal buffer."""
+        cdef Py_buffer pybuff
+        cdef int new_protocol = 0
+        cdef char* buf
+        cdef Py_ssize_t buf_len
+
+        if self.file_like is not None:
+            raise AssertionError(
+                    "unpacker.feed() is not be able to use with `file_like`.")
+
+        get_data_from_buffer(next_bytes, &pybuff, &buf, &buf_len, &new_protocol)
+        try:
+            self.append_buffer(buf, buf_len)
+        finally:
+            if new_protocol:
+                PyBuffer_Release(&pybuff)
+
+    cdef append_buffer(self, void* _buf, Py_ssize_t _buf_len):
+        cdef:
+            char* buf = self.buf
+            char* new_buf
+            Py_ssize_t head = self.buf_head
+            Py_ssize_t tail = self.buf_tail
+            Py_ssize_t buf_size = self.buf_size
+            Py_ssize_t new_size
+
+        if tail + _buf_len > buf_size:
+            if ((tail - head) + _buf_len) <= buf_size:
+                # move to front.
+                memmove(buf, buf + head, tail - head)
+                tail -= head
+                head = 0
+            else:
+                # expand buffer.
+                new_size = (tail-head) + _buf_len
+                if new_size > self.max_buffer_size:
+                    raise BufferFull
+                new_size = min(new_size*2, self.max_buffer_size)
+                new_buf = <char*>PyMem_Malloc(new_size)
+                if new_buf == NULL:
+                    # self.buf still holds old buffer and will be freed during
+                    # obj destruction
+                    raise MemoryError("Unable to enlarge internal buffer.")
+                memcpy(new_buf, buf + head, tail - head)
+                PyMem_Free(buf)
+
+                buf = new_buf
+                buf_size = new_size
+                tail -= head
+                head = 0
+
+        memcpy(buf + tail, <char*>(_buf), _buf_len)
+        self.buf = buf
+        self.buf_head = head
+        self.buf_size = buf_size
+        self.buf_tail = tail + _buf_len
+
+    cdef read_from_file(self):
+        next_bytes = self.file_like_read(
+                min(self.read_size,
+                    self.max_buffer_size - (self.buf_tail - self.buf_head)
+                    ))
+        if next_bytes:
+            self.append_buffer(PyBytes_AsString(next_bytes), PyBytes_Size(next_bytes))
+        else:
+            self.file_like = None
+
+    cdef object _unpack(self, execute_fn execute, object write_bytes, bint iter=0):
+        cdef int ret
+        cdef object obj
+        cdef Py_ssize_t prev_head
+
+        if write_bytes is not None:
+            PyErr_WarnEx(DeprecationWarning, "`write_bytes` option is deprecated. Use `.tell()` instead.", 1)
+
+        if self.buf_head >= self.buf_tail and self.file_like is not None:
+            self.read_from_file()
+
+        while 1:
+            prev_head = self.buf_head
+            if prev_head >= self.buf_tail:
+                if iter:
+                    raise StopIteration("No more data to unpack.")
+                else:
+                    raise OutOfData("No more data to unpack.")
+
+            try:
+                ret = execute(&self.ctx, self.buf, self.buf_tail, &self.buf_head)
+                self.stream_offset += self.buf_head - prev_head
+                if write_bytes is not None:
+                    write_bytes(PyBytes_FromStringAndSize(self.buf + prev_head, self.buf_head - prev_head))
+
+                if ret == 1:
+                    obj = unpack_data(&self.ctx)
+                    unpack_init(&self.ctx)
+                    return obj
+                elif ret == 0:
+                    if self.file_like is not None:
+                        self.read_from_file()
+                        continue
+                    if iter:
+                        raise StopIteration("No more data to unpack.")
+                    else:
+                        raise OutOfData("No more data to unpack.")
+                else:
+                    raise UnpackValueError("Unpack failed: error = %d" % (ret,))
+            except ValueError as e:
+                raise UnpackValueError(e)
+
+    def read_bytes(self, Py_ssize_t nbytes):
+        """Read a specified number of raw bytes from the stream"""
+        cdef Py_ssize_t nread
+        nread = min(self.buf_tail - self.buf_head, nbytes)
+        ret = PyBytes_FromStringAndSize(self.buf + self.buf_head, nread)
+        self.buf_head += nread
+        if len(ret) < nbytes and self.file_like is not None:
+            ret += self.file_like.read(nbytes - len(ret))
+        return ret
+
+    def unpack(self, object write_bytes=None):
+        """Unpack one object
+
+        If write_bytes is not None, it will be called with parts of the raw
+        message as it is unpacked.
+
+        Raises `OutOfData` when there are no more bytes to unpack.
+        """
+        return self._unpack(unpack_construct, write_bytes)
+
+    def skip(self, object write_bytes=None):
+        """Read and ignore one object, returning None
+
+        If write_bytes is not None, it will be called with parts of the raw
+        message as it is unpacked.
+
+        Raises `OutOfData` when there are no more bytes to unpack.
+        """
+        return self._unpack(unpack_skip, write_bytes)
+
+    def read_array_header(self, object write_bytes=None):
+        """assuming the next object is an array, return its size n, such that
+        the next n unpack() calls will iterate over its contents.
+
+        Raises `OutOfData` when there are no more bytes to unpack.
+        """
+        return self._unpack(read_array_header, write_bytes)
+
+    def read_map_header(self, object write_bytes=None):
+        """assuming the next object is a map, return its size n, such that the
+        next n * 2 unpack() calls will iterate over its key-value pairs.
+
+        Raises `OutOfData` when there are no more bytes to unpack.
+        """
+        return self._unpack(read_map_header, write_bytes)
+
+    def tell(self):
+        return self.stream_offset
+
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        return self._unpack(unpack_construct, None, 1)
+
+    # for debug.
+    #def _buf(self):
+    #    return PyString_FromStringAndSize(self.buf, self.buf_tail)
+
+    #def _off(self):
+    #    return self.buf_head

+ 1 - 0
src/borg/_msgpack/_version.py

@@ -0,0 +1 @@
+version = (0, 5, 6)

+ 41 - 0
src/borg/_msgpack/exceptions.py

@@ -0,0 +1,41 @@
+class UnpackException(Exception):
+    """Deprecated.  Use Exception instead to catch all exception during unpacking."""
+
+
+class BufferFull(UnpackException):
+    pass
+
+
+class OutOfData(UnpackException):
+    pass
+
+
+class UnpackValueError(UnpackException, ValueError):
+    """Deprecated.  Use ValueError instead."""
+
+
+class ExtraData(UnpackValueError):
+    def __init__(self, unpacked, extra):
+        self.unpacked = unpacked
+        self.extra = extra
+
+    def __str__(self):
+        return "unpack(b) received extra data."
+
+
+class PackException(Exception):
+    """Deprecated.  Use Exception instead to catch all exception during packing."""
+
+
+class PackValueError(PackException, ValueError):
+    """PackValueError is raised when type of input data is supported but it's value is unsupported.
+
+    Deprecated.  Use ValueError instead.
+    """
+
+
+class PackOverflowError(PackValueError, OverflowError):
+    """PackOverflowError is raised when integer value is out of range of msgpack support [-2**31, 2**32).
+
+    Deprecated.  Use ValueError instead.
+    """

+ 971 - 0
src/borg/_msgpack/fallback.py

@@ -0,0 +1,971 @@
+"""Fallback pure Python implementation of msgpack"""
+
+import sys
+import struct
+import warnings
+
+if sys.version_info[0] == 3:
+    PY3 = True
+    int_types = int
+    Unicode = str
+    xrange = range
+    def dict_iteritems(d):
+        return d.items()
+else:
+    PY3 = False
+    int_types = (int, long)
+    Unicode = unicode
+    def dict_iteritems(d):
+        return d.iteritems()
+
+
+if hasattr(sys, 'pypy_version_info'):
+    # cStringIO is slow on PyPy, StringIO is faster.  However: PyPy's own
+    # StringBuilder is fastest.
+    from __pypy__ import newlist_hint
+    try:
+        from __pypy__.builders import BytesBuilder as StringBuilder
+    except ImportError:
+        from __pypy__.builders import StringBuilder
+    USING_STRINGBUILDER = True
+    class StringIO(object):
+        def __init__(self, s=b''):
+            if s:
+                self.builder = StringBuilder(len(s))
+                self.builder.append(s)
+            else:
+                self.builder = StringBuilder()
+        def write(self, s):
+            if isinstance(s, memoryview):
+                s = s.tobytes()
+            elif isinstance(s, bytearray):
+                s = bytes(s)
+            self.builder.append(s)
+        def getvalue(self):
+            return self.builder.build()
+else:
+    USING_STRINGBUILDER = False
+    from io import BytesIO as StringIO
+    newlist_hint = lambda size: []
+
+
+from msgpack.exceptions import (
+    BufferFull,
+    OutOfData,
+    UnpackValueError,
+    PackValueError,
+    PackOverflowError,
+    ExtraData)
+
+from msgpack import ExtType
+
+
+EX_SKIP                 = 0
+EX_CONSTRUCT            = 1
+EX_READ_ARRAY_HEADER    = 2
+EX_READ_MAP_HEADER      = 3
+
+TYPE_IMMEDIATE          = 0
+TYPE_ARRAY              = 1
+TYPE_MAP                = 2
+TYPE_RAW                = 3
+TYPE_BIN                = 4
+TYPE_EXT                = 5
+
+DEFAULT_RECURSE_LIMIT = 511
+
+
+def _check_type_strict(obj, t, type=type, tuple=tuple):
+    if type(t) is tuple:
+        return type(obj) in t
+    else:
+        return type(obj) is t
+
+
+def _get_data_from_buffer(obj):
+    try:
+        view = memoryview(obj)
+    except TypeError:
+        # try to use legacy buffer protocol if 2.7, otherwise re-raise
+        if not PY3:
+            view = memoryview(buffer(obj))
+            warnings.warn("using old buffer interface to unpack %s; "
+                          "this leads to unpacking errors if slicing is used and "
+                          "will be removed in a future version" % type(obj),
+                          RuntimeWarning)
+        else:
+            raise
+    if view.itemsize != 1:
+        raise ValueError("cannot unpack from multi-byte object")
+    return view
+
+
+def unpack(stream, **kwargs):
+    warnings.warn(
+        "Direct calling implementation's unpack() is deprecated, Use msgpack.unpack() or unpackb() instead.",
+        PendingDeprecationWarning)
+    data = stream.read()
+    return unpackb(data, **kwargs)
+
+
+def unpackb(packed, **kwargs):
+    """
+    Unpack an object from `packed`.
+
+    Raises `ExtraData` when `packed` contains extra bytes.
+    See :class:`Unpacker` for options.
+    """
+    unpacker = Unpacker(None, **kwargs)
+    unpacker.feed(packed)
+    try:
+        ret = unpacker._unpack()
+    except OutOfData:
+        raise UnpackValueError("Data is not enough.")
+    if unpacker._got_extradata():
+        raise ExtraData(ret, unpacker._get_extradata())
+    return ret
+
+
+class Unpacker(object):
+    """Streaming unpacker.
+
+    arguments:
+
+    :param file_like:
+        File-like object having `.read(n)` method.
+        If specified, unpacker reads serialized data from it and :meth:`feed()` is not usable.
+
+    :param int read_size:
+        Used as `file_like.read(read_size)`. (default: `min(16*1024, max_buffer_size)`)
+
+    :param bool use_list:
+        If true, unpack msgpack array to Python list.
+        Otherwise, unpack to Python tuple. (default: True)
+
+    :param bool raw:
+        If true, unpack msgpack raw to Python bytes (default).
+        Otherwise, unpack to Python str (or unicode on Python 2) by decoding
+        with UTF-8 encoding (recommended).
+        Currently, the default is true, but it will be changed to false in
+        near future.  So you must specify it explicitly for keeping backward
+        compatibility.
+
+        *encoding* option which is deprecated overrides this option.
+
+    :param callable object_hook:
+        When specified, it should be callable.
+        Unpacker calls it with a dict argument after unpacking msgpack map.
+        (See also simplejson)
+
+    :param callable object_pairs_hook:
+        When specified, it should be callable.
+        Unpacker calls it with a list of key-value pairs after unpacking msgpack map.
+        (See also simplejson)
+
+    :param str encoding:
+        Encoding used for decoding msgpack raw.
+        If it is None (default), msgpack raw is deserialized to Python bytes.
+
+    :param str unicode_errors:
+        (deprecated) Used for decoding msgpack raw with *encoding*.
+        (default: `'strict'`)
+
+    :param int max_buffer_size:
+        Limits size of data waiting unpacked.  0 means system's INT_MAX (default).
+        Raises `BufferFull` exception when it is insufficient.
+        You should set this parameter when unpacking data from untrusted source.
+
+    :param int max_str_len:
+        Limits max length of str. (default: 2**31-1)
+
+    :param int max_bin_len:
+        Limits max length of bin. (default: 2**31-1)
+
+    :param int max_array_len:
+        Limits max length of array. (default: 2**31-1)
+
+    :param int max_map_len:
+        Limits max length of map. (default: 2**31-1)
+
+
+    example of streaming deserialize from file-like object::
+
+        unpacker = Unpacker(file_like, raw=False)
+        for o in unpacker:
+            process(o)
+
+    example of streaming deserialize from socket::
+
+        unpacker = Unpacker(raw=False)
+        while True:
+            buf = sock.recv(1024**2)
+            if not buf:
+                break
+            unpacker.feed(buf)
+            for o in unpacker:
+                process(o)
+    """
+
+    def __init__(self, file_like=None, read_size=0, use_list=True, raw=True,
+                 object_hook=None, object_pairs_hook=None, list_hook=None,
+                 encoding=None, unicode_errors=None, max_buffer_size=0,
+                 ext_hook=ExtType,
+                 max_str_len=2147483647, # 2**32-1
+                 max_bin_len=2147483647,
+                 max_array_len=2147483647,
+                 max_map_len=2147483647,
+                 max_ext_len=2147483647):
+
+        if encoding is not None:
+            warnings.warn(
+                "encoding is deprecated, Use raw=False instead.",
+                PendingDeprecationWarning)
+
+        if unicode_errors is None:
+            unicode_errors = 'strict'
+
+        if file_like is None:
+            self._feeding = True
+        else:
+            if not callable(file_like.read):
+                raise TypeError("`file_like.read` must be callable")
+            self.file_like = file_like
+            self._feeding = False
+
+        #: array of bytes fed.
+        self._buffer = bytearray()
+        #: Which position we currently reads
+        self._buff_i = 0
+
+        # When Unpacker is used as an iterable, between the calls to next(),
+        # the buffer is not "consumed" completely, for efficiency sake.
+        # Instead, it is done sloppily.  To make sure we raise BufferFull at
+        # the correct moments, we have to keep track of how sloppy we were.
+        # Furthermore, when the buffer is incomplete (that is: in the case
+        # we raise an OutOfData) we need to rollback the buffer to the correct
+        # state, which _buf_checkpoint records.
+        self._buf_checkpoint = 0
+
+        self._max_buffer_size = max_buffer_size or 2**31-1
+        if read_size > self._max_buffer_size:
+            raise ValueError("read_size must be smaller than max_buffer_size")
+        self._read_size = read_size or min(self._max_buffer_size, 16*1024)
+        self._raw = bool(raw)
+        self._encoding = encoding
+        self._unicode_errors = unicode_errors
+        self._use_list = use_list
+        self._list_hook = list_hook
+        self._object_hook = object_hook
+        self._object_pairs_hook = object_pairs_hook
+        self._ext_hook = ext_hook
+        self._max_str_len = max_str_len
+        self._max_bin_len = max_bin_len
+        self._max_array_len = max_array_len
+        self._max_map_len = max_map_len
+        self._max_ext_len = max_ext_len
+        self._stream_offset = 0
+
+        if list_hook is not None and not callable(list_hook):
+            raise TypeError('`list_hook` is not callable')
+        if object_hook is not None and not callable(object_hook):
+            raise TypeError('`object_hook` is not callable')
+        if object_pairs_hook is not None and not callable(object_pairs_hook):
+            raise TypeError('`object_pairs_hook` is not callable')
+        if object_hook is not None and object_pairs_hook is not None:
+            raise TypeError("object_pairs_hook and object_hook are mutually "
+                            "exclusive")
+        if not callable(ext_hook):
+            raise TypeError("`ext_hook` is not callable")
+
+    def feed(self, next_bytes):
+        assert self._feeding
+        view = _get_data_from_buffer(next_bytes)
+        if (len(self._buffer) - self._buff_i + len(view) > self._max_buffer_size):
+            raise BufferFull
+
+        # Strip buffer before checkpoint before reading file.
+        if self._buf_checkpoint > 0:
+            del self._buffer[:self._buf_checkpoint]
+            self._buff_i -= self._buf_checkpoint
+            self._buf_checkpoint = 0
+
+        self._buffer += view
+
+    def _consume(self):
+        """ Gets rid of the used parts of the buffer. """
+        self._stream_offset += self._buff_i - self._buf_checkpoint
+        self._buf_checkpoint = self._buff_i
+
+    def _got_extradata(self):
+        return self._buff_i < len(self._buffer)
+
+    def _get_extradata(self):
+        return self._buffer[self._buff_i:]
+
+    def read_bytes(self, n):
+        return self._read(n)
+
+    def _read(self, n):
+        # (int) -> bytearray
+        self._reserve(n)
+        i = self._buff_i
+        self._buff_i = i+n
+        return self._buffer[i:i+n]
+
+    def _reserve(self, n):
+        remain_bytes = len(self._buffer) - self._buff_i - n
+
+        # Fast path: buffer has n bytes already
+        if remain_bytes >= 0:
+            return
+
+        if self._feeding:
+            self._buff_i = self._buf_checkpoint
+            raise OutOfData
+
+        # Strip buffer before checkpoint before reading file.
+        if self._buf_checkpoint > 0:
+            del self._buffer[:self._buf_checkpoint]
+            self._buff_i -= self._buf_checkpoint
+            self._buf_checkpoint = 0
+
+        # Read from file
+        remain_bytes = -remain_bytes
+        while remain_bytes > 0:
+            to_read_bytes = max(self._read_size, remain_bytes)
+            read_data = self.file_like.read(to_read_bytes)
+            if not read_data:
+                break
+            assert isinstance(read_data, bytes)
+            self._buffer += read_data
+            remain_bytes -= len(read_data)
+
+        if len(self._buffer) < n + self._buff_i:
+            self._buff_i = 0  # rollback
+            raise OutOfData
+
+    def _read_header(self, execute=EX_CONSTRUCT):
+        typ = TYPE_IMMEDIATE
+        n = 0
+        obj = None
+        self._reserve(1)
+        b = self._buffer[self._buff_i]
+        self._buff_i += 1
+        if b & 0b10000000 == 0:
+            obj = b
+        elif b & 0b11100000 == 0b11100000:
+            obj = -1 - (b ^ 0xff)
+        elif b & 0b11100000 == 0b10100000:
+            n = b & 0b00011111
+            typ = TYPE_RAW
+            if n > self._max_str_len:
+                raise UnpackValueError("%s exceeds max_str_len(%s)", n, self._max_str_len)
+            obj = self._read(n)
+        elif b & 0b11110000 == 0b10010000:
+            n = b & 0b00001111
+            typ = TYPE_ARRAY
+            if n > self._max_array_len:
+                raise UnpackValueError("%s exceeds max_array_len(%s)", n, self._max_array_len)
+        elif b & 0b11110000 == 0b10000000:
+            n = b & 0b00001111
+            typ = TYPE_MAP
+            if n > self._max_map_len:
+                raise UnpackValueError("%s exceeds max_map_len(%s)", n, self._max_map_len)
+        elif b == 0xc0:
+            obj = None
+        elif b == 0xc2:
+            obj = False
+        elif b == 0xc3:
+            obj = True
+        elif b == 0xc4:
+            typ = TYPE_BIN
+            self._reserve(1)
+            n = self._buffer[self._buff_i]
+            self._buff_i += 1
+            if n > self._max_bin_len:
+                raise UnpackValueError("%s exceeds max_bin_len(%s)" % (n, self._max_bin_len))
+            obj = self._read(n)
+        elif b == 0xc5:
+            typ = TYPE_BIN
+            self._reserve(2)
+            n = struct.unpack_from(">H", self._buffer, self._buff_i)[0]
+            self._buff_i += 2
+            if n > self._max_bin_len:
+                raise UnpackValueError("%s exceeds max_bin_len(%s)" % (n, self._max_bin_len))
+            obj = self._read(n)
+        elif b == 0xc6:
+            typ = TYPE_BIN
+            self._reserve(4)
+            n = struct.unpack_from(">I", self._buffer, self._buff_i)[0]
+            self._buff_i += 4
+            if n > self._max_bin_len:
+                raise UnpackValueError("%s exceeds max_bin_len(%s)" % (n, self._max_bin_len))
+            obj = self._read(n)
+        elif b == 0xc7:  # ext 8
+            typ = TYPE_EXT
+            self._reserve(2)
+            L, n = struct.unpack_from('Bb', self._buffer, self._buff_i)
+            self._buff_i += 2
+            if L > self._max_ext_len:
+                raise UnpackValueError("%s exceeds max_ext_len(%s)" % (L, self._max_ext_len))
+            obj = self._read(L)
+        elif b == 0xc8:  # ext 16
+            typ = TYPE_EXT
+            self._reserve(3)
+            L, n = struct.unpack_from('>Hb', self._buffer, self._buff_i)
+            self._buff_i += 3
+            if L > self._max_ext_len:
+                raise UnpackValueError("%s exceeds max_ext_len(%s)" % (L, self._max_ext_len))
+            obj = self._read(L)
+        elif b == 0xc9:  # ext 32
+            typ = TYPE_EXT
+            self._reserve(5)
+            L, n = struct.unpack_from('>Ib', self._buffer, self._buff_i)
+            self._buff_i += 5
+            if L > self._max_ext_len:
+                raise UnpackValueError("%s exceeds max_ext_len(%s)" % (L, self._max_ext_len))
+            obj = self._read(L)
+        elif b == 0xca:
+            self._reserve(4)
+            obj = struct.unpack_from(">f", self._buffer, self._buff_i)[0]
+            self._buff_i += 4
+        elif b == 0xcb:
+            self._reserve(8)
+            obj = struct.unpack_from(">d", self._buffer, self._buff_i)[0]
+            self._buff_i += 8
+        elif b == 0xcc:
+            self._reserve(1)
+            obj = self._buffer[self._buff_i]
+            self._buff_i += 1
+        elif b == 0xcd:
+            self._reserve(2)
+            obj = struct.unpack_from(">H", self._buffer, self._buff_i)[0]
+            self._buff_i += 2
+        elif b == 0xce:
+            self._reserve(4)
+            obj = struct.unpack_from(">I", self._buffer, self._buff_i)[0]
+            self._buff_i += 4
+        elif b == 0xcf:
+            self._reserve(8)
+            obj = struct.unpack_from(">Q", self._buffer, self._buff_i)[0]
+            self._buff_i += 8
+        elif b == 0xd0:
+            self._reserve(1)
+            obj = struct.unpack_from("b", self._buffer, self._buff_i)[0]
+            self._buff_i += 1
+        elif b == 0xd1:
+            self._reserve(2)
+            obj = struct.unpack_from(">h", self._buffer, self._buff_i)[0]
+            self._buff_i += 2
+        elif b == 0xd2:
+            self._reserve(4)
+            obj = struct.unpack_from(">i", self._buffer, self._buff_i)[0]
+            self._buff_i += 4
+        elif b == 0xd3:
+            self._reserve(8)
+            obj = struct.unpack_from(">q", self._buffer, self._buff_i)[0]
+            self._buff_i += 8
+        elif b == 0xd4:  # fixext 1
+            typ = TYPE_EXT
+            if self._max_ext_len < 1:
+                raise UnpackValueError("%s exceeds max_ext_len(%s)" % (1, self._max_ext_len))
+            self._reserve(2)
+            n, obj = struct.unpack_from("b1s", self._buffer, self._buff_i)
+            self._buff_i += 2
+        elif b == 0xd5:  # fixext 2
+            typ = TYPE_EXT
+            if self._max_ext_len < 2:
+                raise UnpackValueError("%s exceeds max_ext_len(%s)" % (2, self._max_ext_len))
+            self._reserve(3)
+            n, obj = struct.unpack_from("b2s", self._buffer, self._buff_i)
+            self._buff_i += 3
+        elif b == 0xd6:  # fixext 4
+            typ = TYPE_EXT
+            if self._max_ext_len < 4:
+                raise UnpackValueError("%s exceeds max_ext_len(%s)" % (4, self._max_ext_len))
+            self._reserve(5)
+            n, obj = struct.unpack_from("b4s", self._buffer, self._buff_i)
+            self._buff_i += 5
+        elif b == 0xd7:  # fixext 8
+            typ = TYPE_EXT
+            if self._max_ext_len < 8:
+                raise UnpackValueError("%s exceeds max_ext_len(%s)" % (8, self._max_ext_len))
+            self._reserve(9)
+            n, obj = struct.unpack_from("b8s", self._buffer, self._buff_i)
+            self._buff_i += 9
+        elif b == 0xd8:  # fixext 16
+            typ = TYPE_EXT
+            if self._max_ext_len < 16:
+                raise UnpackValueError("%s exceeds max_ext_len(%s)" % (16, self._max_ext_len))
+            self._reserve(17)
+            n, obj = struct.unpack_from("b16s", self._buffer, self._buff_i)
+            self._buff_i += 17
+        elif b == 0xd9:
+            typ = TYPE_RAW
+            self._reserve(1)
+            n = self._buffer[self._buff_i]
+            self._buff_i += 1
+            if n > self._max_str_len:
+                raise UnpackValueError("%s exceeds max_str_len(%s)", n, self._max_str_len)
+            obj = self._read(n)
+        elif b == 0xda:
+            typ = TYPE_RAW
+            self._reserve(2)
+            n, = struct.unpack_from(">H", self._buffer, self._buff_i)
+            self._buff_i += 2
+            if n > self._max_str_len:
+                raise UnpackValueError("%s exceeds max_str_len(%s)", n, self._max_str_len)
+            obj = self._read(n)
+        elif b == 0xdb:
+            typ = TYPE_RAW
+            self._reserve(4)
+            n, = struct.unpack_from(">I", self._buffer, self._buff_i)
+            self._buff_i += 4
+            if n > self._max_str_len:
+                raise UnpackValueError("%s exceeds max_str_len(%s)", n, self._max_str_len)
+            obj = self._read(n)
+        elif b == 0xdc:
+            typ = TYPE_ARRAY
+            self._reserve(2)
+            n, = struct.unpack_from(">H", self._buffer, self._buff_i)
+            self._buff_i += 2
+            if n > self._max_array_len:
+                raise UnpackValueError("%s exceeds max_array_len(%s)", n, self._max_array_len)
+        elif b == 0xdd:
+            typ = TYPE_ARRAY
+            self._reserve(4)
+            n, = struct.unpack_from(">I", self._buffer, self._buff_i)
+            self._buff_i += 4
+            if n > self._max_array_len:
+                raise UnpackValueError("%s exceeds max_array_len(%s)", n, self._max_array_len)
+        elif b == 0xde:
+            self._reserve(2)
+            n, = struct.unpack_from(">H", self._buffer, self._buff_i)
+            self._buff_i += 2
+            if n > self._max_map_len:
+                raise UnpackValueError("%s exceeds max_map_len(%s)", n, self._max_map_len)
+            typ = TYPE_MAP
+        elif b == 0xdf:
+            self._reserve(4)
+            n, = struct.unpack_from(">I", self._buffer, self._buff_i)
+            self._buff_i += 4
+            if n > self._max_map_len:
+                raise UnpackValueError("%s exceeds max_map_len(%s)", n, self._max_map_len)
+            typ = TYPE_MAP
+        else:
+            raise UnpackValueError("Unknown header: 0x%x" % b)
+        return typ, n, obj
+
+    def _unpack(self, execute=EX_CONSTRUCT):
+        typ, n, obj = self._read_header(execute)
+
+        if execute == EX_READ_ARRAY_HEADER:
+            if typ != TYPE_ARRAY:
+                raise UnpackValueError("Expected array")
+            return n
+        if execute == EX_READ_MAP_HEADER:
+            if typ != TYPE_MAP:
+                raise UnpackValueError("Expected map")
+            return n
+        # TODO should we eliminate the recursion?
+        if typ == TYPE_ARRAY:
+            if execute == EX_SKIP:
+                for i in xrange(n):
+                    # TODO check whether we need to call `list_hook`
+                    self._unpack(EX_SKIP)
+                return
+            ret = newlist_hint(n)
+            for i in xrange(n):
+                ret.append(self._unpack(EX_CONSTRUCT))
+            if self._list_hook is not None:
+                ret = self._list_hook(ret)
+            # TODO is the interaction between `list_hook` and `use_list` ok?
+            return ret if self._use_list else tuple(ret)
+        if typ == TYPE_MAP:
+            if execute == EX_SKIP:
+                for i in xrange(n):
+                    # TODO check whether we need to call hooks
+                    self._unpack(EX_SKIP)
+                    self._unpack(EX_SKIP)
+                return
+            if self._object_pairs_hook is not None:
+                ret = self._object_pairs_hook(
+                    (self._unpack(EX_CONSTRUCT),
+                     self._unpack(EX_CONSTRUCT))
+                    for _ in xrange(n))
+            else:
+                ret = {}
+                for _ in xrange(n):
+                    key = self._unpack(EX_CONSTRUCT)
+                    ret[key] = self._unpack(EX_CONSTRUCT)
+                if self._object_hook is not None:
+                    ret = self._object_hook(ret)
+            return ret
+        if execute == EX_SKIP:
+            return
+        if typ == TYPE_RAW:
+            if self._encoding is not None:
+                obj = obj.decode(self._encoding, self._unicode_errors)
+            elif self._raw:
+                obj = bytes(obj)
+            else:
+                obj = obj.decode('utf_8')
+            return obj
+        if typ == TYPE_EXT:
+            return self._ext_hook(n, bytes(obj))
+        if typ == TYPE_BIN:
+            return bytes(obj)
+        assert typ == TYPE_IMMEDIATE
+        return obj
+
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        try:
+            ret = self._unpack(EX_CONSTRUCT)
+            self._consume()
+            return ret
+        except OutOfData:
+            self._consume()
+            raise StopIteration
+
+    next = __next__
+
+    def skip(self, write_bytes=None):
+        self._unpack(EX_SKIP)
+        if write_bytes is not None:
+            warnings.warn("`write_bytes` option is deprecated.  Use `.tell()` instead.", DeprecationWarning)
+            write_bytes(self._buffer[self._buf_checkpoint:self._buff_i])
+        self._consume()
+
+    def unpack(self, write_bytes=None):
+        ret = self._unpack(EX_CONSTRUCT)
+        if write_bytes is not None:
+            warnings.warn("`write_bytes` option is deprecated.  Use `.tell()` instead.", DeprecationWarning)
+            write_bytes(self._buffer[self._buf_checkpoint:self._buff_i])
+        self._consume()
+        return ret
+
+    def read_array_header(self, write_bytes=None):
+        ret = self._unpack(EX_READ_ARRAY_HEADER)
+        if write_bytes is not None:
+            warnings.warn("`write_bytes` option is deprecated.  Use `.tell()` instead.", DeprecationWarning)
+            write_bytes(self._buffer[self._buf_checkpoint:self._buff_i])
+        self._consume()
+        return ret
+
+    def read_map_header(self, write_bytes=None):
+        ret = self._unpack(EX_READ_MAP_HEADER)
+        if write_bytes is not None:
+            warnings.warn("`write_bytes` option is deprecated.  Use `.tell()` instead.", DeprecationWarning)
+            write_bytes(self._buffer[self._buf_checkpoint:self._buff_i])
+        self._consume()
+        return ret
+
+    def tell(self):
+        return self._stream_offset
+
+
+class Packer(object):
+    """
+    MessagePack Packer
+
+    usage:
+
+        packer = Packer()
+        astream.write(packer.pack(a))
+        astream.write(packer.pack(b))
+
+    Packer's constructor has some keyword arguments:
+
+    :param callable default:
+        Convert user type to builtin type that Packer supports.
+        See also simplejson's document.
+
+    :param bool use_single_float:
+        Use single precision float type for float. (default: False)
+
+    :param bool autoreset:
+        Reset buffer after each pack and return its content as `bytes`. (default: True).
+        If set this to false, use `bytes()` to get content and `.reset()` to clear buffer.
+
+    :param bool use_bin_type:
+        Use bin type introduced in msgpack spec 2.0 for bytes.
+        It also enables str8 type for unicode.
+
+    :param bool strict_types:
+        If set to true, types will be checked to be exact. Derived classes
+        from serializeable types will not be serialized and will be
+        treated as unsupported type and forwarded to default.
+        Additionally tuples will not be serialized as lists.
+        This is useful when trying to implement accurate serialization
+        for python types.
+
+    :param str encoding:
+        (deprecated) Convert unicode to bytes with this encoding. (default: 'utf-8')
+
+    :param str unicode_errors:
+        Error handler for encoding unicode. (default: 'strict')
+    """
+    def __init__(self, default=None, encoding=None, unicode_errors=None,
+                 use_single_float=False, autoreset=True, use_bin_type=False,
+                 strict_types=False):
+        if encoding is None:
+            encoding = 'utf_8'
+        else:
+            warnings.warn(
+                "encoding is deprecated, Use raw=False instead.",
+                PendingDeprecationWarning)
+
+        if unicode_errors is None:
+            unicode_errors = 'strict'
+
+        self._strict_types = strict_types
+        self._use_float = use_single_float
+        self._autoreset = autoreset
+        self._use_bin_type = use_bin_type
+        self._encoding = encoding
+        self._unicode_errors = unicode_errors
+        self._buffer = StringIO()
+        if default is not None:
+            if not callable(default):
+                raise TypeError("default must be callable")
+        self._default = default
+
+    def _pack(self, obj, nest_limit=DEFAULT_RECURSE_LIMIT,
+              check=isinstance, check_type_strict=_check_type_strict):
+        default_used = False
+        if self._strict_types:
+            check = check_type_strict
+            list_types = list
+        else:
+            list_types = (list, tuple)
+        while True:
+            if nest_limit < 0:
+                raise PackValueError("recursion limit exceeded")
+            if obj is None:
+                return self._buffer.write(b"\xc0")
+            if check(obj, bool):
+                if obj:
+                    return self._buffer.write(b"\xc3")
+                return self._buffer.write(b"\xc2")
+            if check(obj, int_types):
+                if 0 <= obj < 0x80:
+                    return self._buffer.write(struct.pack("B", obj))
+                if -0x20 <= obj < 0:
+                    return self._buffer.write(struct.pack("b", obj))
+                if 0x80 <= obj <= 0xff:
+                    return self._buffer.write(struct.pack("BB", 0xcc, obj))
+                if -0x80 <= obj < 0:
+                    return self._buffer.write(struct.pack(">Bb", 0xd0, obj))
+                if 0xff < obj <= 0xffff:
+                    return self._buffer.write(struct.pack(">BH", 0xcd, obj))
+                if -0x8000 <= obj < -0x80:
+                    return self._buffer.write(struct.pack(">Bh", 0xd1, obj))
+                if 0xffff < obj <= 0xffffffff:
+                    return self._buffer.write(struct.pack(">BI", 0xce, obj))
+                if -0x80000000 <= obj < -0x8000:
+                    return self._buffer.write(struct.pack(">Bi", 0xd2, obj))
+                if 0xffffffff < obj <= 0xffffffffffffffff:
+                    return self._buffer.write(struct.pack(">BQ", 0xcf, obj))
+                if -0x8000000000000000 <= obj < -0x80000000:
+                    return self._buffer.write(struct.pack(">Bq", 0xd3, obj))
+                if not default_used and self._default is not None:
+                    obj = self._default(obj)
+                    default_used = True
+                    continue
+                raise PackOverflowError("Integer value out of range")
+            if check(obj, (bytes, bytearray)):
+                n = len(obj)
+                if n >= 2**32:
+                    raise PackValueError("%s is too large" % type(obj).__name__)
+                self._pack_bin_header(n)
+                return self._buffer.write(obj)
+            if check(obj, Unicode):
+                if self._encoding is None:
+                    raise TypeError(
+                        "Can't encode unicode string: "
+                        "no encoding is specified")
+                obj = obj.encode(self._encoding, self._unicode_errors)
+                n = len(obj)
+                if n >= 2**32:
+                    raise PackValueError("String is too large")
+                self._pack_raw_header(n)
+                return self._buffer.write(obj)
+            if check(obj, memoryview):
+                n = len(obj) * obj.itemsize
+                if n >= 2**32:
+                    raise PackValueError("Memoryview is too large")
+                self._pack_bin_header(n)
+                return self._buffer.write(obj)
+            if check(obj, float):
+                if self._use_float:
+                    return self._buffer.write(struct.pack(">Bf", 0xca, obj))
+                return self._buffer.write(struct.pack(">Bd", 0xcb, obj))
+            if check(obj, ExtType):
+                code = obj.code
+                data = obj.data
+                assert isinstance(code, int)
+                assert isinstance(data, bytes)
+                L = len(data)
+                if L == 1:
+                    self._buffer.write(b'\xd4')
+                elif L == 2:
+                    self._buffer.write(b'\xd5')
+                elif L == 4:
+                    self._buffer.write(b'\xd6')
+                elif L == 8:
+                    self._buffer.write(b'\xd7')
+                elif L == 16:
+                    self._buffer.write(b'\xd8')
+                elif L <= 0xff:
+                    self._buffer.write(struct.pack(">BB", 0xc7, L))
+                elif L <= 0xffff:
+                    self._buffer.write(struct.pack(">BH", 0xc8, L))
+                else:
+                    self._buffer.write(struct.pack(">BI", 0xc9, L))
+                self._buffer.write(struct.pack("b", code))
+                self._buffer.write(data)
+                return
+            if check(obj, list_types):
+                n = len(obj)
+                self._pack_array_header(n)
+                for i in xrange(n):
+                    self._pack(obj[i], nest_limit - 1)
+                return
+            if check(obj, dict):
+                return self._pack_map_pairs(len(obj), dict_iteritems(obj),
+                                               nest_limit - 1)
+            if not default_used and self._default is not None:
+                obj = self._default(obj)
+                default_used = 1
+                continue
+            raise TypeError("Cannot serialize %r" % (obj, ))
+
+    def pack(self, obj):
+        try:
+            self._pack(obj)
+        except:
+            self._buffer = StringIO()  # force reset
+            raise
+        ret = self._buffer.getvalue()
+        if self._autoreset:
+            self._buffer = StringIO()
+        elif USING_STRINGBUILDER:
+            self._buffer = StringIO(ret)
+        return ret
+
+    def pack_map_pairs(self, pairs):
+        self._pack_map_pairs(len(pairs), pairs)
+        ret = self._buffer.getvalue()
+        if self._autoreset:
+            self._buffer = StringIO()
+        elif USING_STRINGBUILDER:
+            self._buffer = StringIO(ret)
+        return ret
+
+    def pack_array_header(self, n):
+        if n >= 2**32:
+            raise PackValueError
+        self._pack_array_header(n)
+        ret = self._buffer.getvalue()
+        if self._autoreset:
+            self._buffer = StringIO()
+        elif USING_STRINGBUILDER:
+            self._buffer = StringIO(ret)
+        return ret
+
+    def pack_map_header(self, n):
+        if n >= 2**32:
+            raise PackValueError
+        self._pack_map_header(n)
+        ret = self._buffer.getvalue()
+        if self._autoreset:
+            self._buffer = StringIO()
+        elif USING_STRINGBUILDER:
+            self._buffer = StringIO(ret)
+        return ret
+
+    def pack_ext_type(self, typecode, data):
+        if not isinstance(typecode, int):
+            raise TypeError("typecode must have int type.")
+        if not 0 <= typecode <= 127:
+            raise ValueError("typecode should be 0-127")
+        if not isinstance(data, bytes):
+            raise TypeError("data must have bytes type")
+        L = len(data)
+        if L > 0xffffffff:
+            raise PackValueError("Too large data")
+        if L == 1:
+            self._buffer.write(b'\xd4')
+        elif L == 2:
+            self._buffer.write(b'\xd5')
+        elif L == 4:
+            self._buffer.write(b'\xd6')
+        elif L == 8:
+            self._buffer.write(b'\xd7')
+        elif L == 16:
+            self._buffer.write(b'\xd8')
+        elif L <= 0xff:
+            self._buffer.write(b'\xc7' + struct.pack('B', L))
+        elif L <= 0xffff:
+            self._buffer.write(b'\xc8' + struct.pack('>H', L))
+        else:
+            self._buffer.write(b'\xc9' + struct.pack('>I', L))
+        self._buffer.write(struct.pack('B', typecode))
+        self._buffer.write(data)
+
+    def _pack_array_header(self, n):
+        if n <= 0x0f:
+            return self._buffer.write(struct.pack('B', 0x90 + n))
+        if n <= 0xffff:
+            return self._buffer.write(struct.pack(">BH", 0xdc, n))
+        if n <= 0xffffffff:
+            return self._buffer.write(struct.pack(">BI", 0xdd, n))
+        raise PackValueError("Array is too large")
+
+    def _pack_map_header(self, n):
+        if n <= 0x0f:
+            return self._buffer.write(struct.pack('B', 0x80 + n))
+        if n <= 0xffff:
+            return self._buffer.write(struct.pack(">BH", 0xde, n))
+        if n <= 0xffffffff:
+            return self._buffer.write(struct.pack(">BI", 0xdf, n))
+        raise PackValueError("Dict is too large")
+
+    def _pack_map_pairs(self, n, pairs, nest_limit=DEFAULT_RECURSE_LIMIT):
+        self._pack_map_header(n)
+        for (k, v) in pairs:
+            self._pack(k, nest_limit - 1)
+            self._pack(v, nest_limit - 1)
+
+    def _pack_raw_header(self, n):
+        if n <= 0x1f:
+            self._buffer.write(struct.pack('B', 0xa0 + n))
+        elif self._use_bin_type and n <= 0xff:
+            self._buffer.write(struct.pack('>BB', 0xd9, n))
+        elif n <= 0xffff:
+            self._buffer.write(struct.pack(">BH", 0xda, n))
+        elif n <= 0xffffffff:
+            self._buffer.write(struct.pack(">BI", 0xdb, n))
+        else:
+            raise PackValueError('Raw is too large')
+
+    def _pack_bin_header(self, n):
+        if not self._use_bin_type:
+            return self._pack_raw_header(n)
+        elif n <= 0xff:
+            return self._buffer.write(struct.pack('>BB', 0xc4, n))
+        elif n <= 0xffff:
+            return self._buffer.write(struct.pack(">BH", 0xc5, n))
+        elif n <= 0xffffffff:
+            return self._buffer.write(struct.pack(">BI", 0xc6, n))
+        else:
+            raise PackValueError('Bin is too large')
+
+    def bytes(self):
+        return self._buffer.getvalue()
+
+    def reset(self):
+        self._buffer = StringIO()

+ 119 - 0
src/borg/_msgpack/pack.h

@@ -0,0 +1,119 @@
+/*
+ * MessagePack for Python packing routine
+ *
+ * Copyright (C) 2009 Naoki INADA
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+#include <stddef.h>
+#include <stdlib.h>
+#include "sysdep.h"
+#include <limits.h>
+#include <string.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef _MSC_VER
+#define inline __inline
+#endif
+
+typedef struct msgpack_packer {
+    char *buf;
+    size_t length;
+    size_t buf_size;
+    bool use_bin_type;
+} msgpack_packer;
+
+typedef struct Packer Packer;
+
+static inline int msgpack_pack_write(msgpack_packer* pk, const char *data, size_t l)
+{
+    char* buf = pk->buf;
+    size_t bs = pk->buf_size;
+    size_t len = pk->length;
+
+    if (len + l > bs) {
+        bs = (len + l) * 2;
+        buf = (char*)PyMem_Realloc(buf, bs);
+        if (!buf) {
+            PyErr_NoMemory();
+            return -1;
+        }
+    }
+    memcpy(buf + len, data, l);
+    len += l;
+
+    pk->buf = buf;
+    pk->buf_size = bs;
+    pk->length = len;
+    return 0;
+}
+
+#define msgpack_pack_append_buffer(user, buf, len) \
+        return msgpack_pack_write(user, (const char*)buf, len)
+
+#include "pack_template.h"
+
+// return -2 when o is too long
+static inline int
+msgpack_pack_unicode(msgpack_packer *pk, PyObject *o, long long limit)
+{
+#if PY_MAJOR_VERSION >= 3
+    assert(PyUnicode_Check(o));
+
+    Py_ssize_t len;
+    const char* buf = PyUnicode_AsUTF8AndSize(o, &len);
+    if (buf == NULL)
+        return -1;
+
+    if (len > limit) {
+        return -2;
+    }
+
+    int ret = msgpack_pack_raw(pk, len);
+    if (ret) return ret;
+
+    return msgpack_pack_raw_body(pk, buf, len);
+#else
+    PyObject *bytes;
+    Py_ssize_t len;
+    int ret;
+
+    // py2
+    bytes = PyUnicode_AsUTF8String(o);
+    if (bytes == NULL)
+        return -1;
+
+    len = PyString_GET_SIZE(bytes);
+    if (len > limit) {
+        Py_DECREF(bytes);
+        return -2;
+    }
+
+    ret = msgpack_pack_raw(pk, len);
+    if (ret) {
+        Py_DECREF(bytes);
+        return -1;
+    }
+    ret = msgpack_pack_raw_body(pk, PyString_AS_STRING(bytes), len);
+    Py_DECREF(bytes);
+    return ret;
+#endif
+}
+
+#ifdef __cplusplus
+}
+#endif

+ 785 - 0
src/borg/_msgpack/pack_template.h

@@ -0,0 +1,785 @@
+/*
+ * MessagePack packing routine template
+ *
+ * Copyright (C) 2008-2010 FURUHASHI Sadayuki
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+#if defined(__LITTLE_ENDIAN__)
+#define TAKE8_8(d)  ((uint8_t*)&d)[0]
+#define TAKE8_16(d) ((uint8_t*)&d)[0]
+#define TAKE8_32(d) ((uint8_t*)&d)[0]
+#define TAKE8_64(d) ((uint8_t*)&d)[0]
+#elif defined(__BIG_ENDIAN__)
+#define TAKE8_8(d)  ((uint8_t*)&d)[0]
+#define TAKE8_16(d) ((uint8_t*)&d)[1]
+#define TAKE8_32(d) ((uint8_t*)&d)[3]
+#define TAKE8_64(d) ((uint8_t*)&d)[7]
+#endif
+
+#ifndef msgpack_pack_append_buffer
+#error msgpack_pack_append_buffer callback is not defined
+#endif
+
+
+/*
+ * Integer
+ */
+
+#define msgpack_pack_real_uint8(x, d) \
+do { \
+    if(d < (1<<7)) { \
+        /* fixnum */ \
+        msgpack_pack_append_buffer(x, &TAKE8_8(d), 1); \
+    } else { \
+        /* unsigned 8 */ \
+        unsigned char buf[2] = {0xcc, TAKE8_8(d)}; \
+        msgpack_pack_append_buffer(x, buf, 2); \
+    } \
+} while(0)
+
+#define msgpack_pack_real_uint16(x, d) \
+do { \
+    if(d < (1<<7)) { \
+        /* fixnum */ \
+        msgpack_pack_append_buffer(x, &TAKE8_16(d), 1); \
+    } else if(d < (1<<8)) { \
+        /* unsigned 8 */ \
+        unsigned char buf[2] = {0xcc, TAKE8_16(d)}; \
+        msgpack_pack_append_buffer(x, buf, 2); \
+    } else { \
+        /* unsigned 16 */ \
+        unsigned char buf[3]; \
+        buf[0] = 0xcd; _msgpack_store16(&buf[1], (uint16_t)d); \
+        msgpack_pack_append_buffer(x, buf, 3); \
+    } \
+} while(0)
+
+#define msgpack_pack_real_uint32(x, d) \
+do { \
+    if(d < (1<<8)) { \
+        if(d < (1<<7)) { \
+            /* fixnum */ \
+            msgpack_pack_append_buffer(x, &TAKE8_32(d), 1); \
+        } else { \
+            /* unsigned 8 */ \
+            unsigned char buf[2] = {0xcc, TAKE8_32(d)}; \
+            msgpack_pack_append_buffer(x, buf, 2); \
+        } \
+    } else { \
+        if(d < (1<<16)) { \
+            /* unsigned 16 */ \
+            unsigned char buf[3]; \
+            buf[0] = 0xcd; _msgpack_store16(&buf[1], (uint16_t)d); \
+            msgpack_pack_append_buffer(x, buf, 3); \
+        } else { \
+            /* unsigned 32 */ \
+            unsigned char buf[5]; \
+            buf[0] = 0xce; _msgpack_store32(&buf[1], (uint32_t)d); \
+            msgpack_pack_append_buffer(x, buf, 5); \
+        } \
+    } \
+} while(0)
+
+#define msgpack_pack_real_uint64(x, d) \
+do { \
+    if(d < (1ULL<<8)) { \
+        if(d < (1ULL<<7)) { \
+            /* fixnum */ \
+            msgpack_pack_append_buffer(x, &TAKE8_64(d), 1); \
+        } else { \
+            /* unsigned 8 */ \
+            unsigned char buf[2] = {0xcc, TAKE8_64(d)}; \
+            msgpack_pack_append_buffer(x, buf, 2); \
+        } \
+    } else { \
+        if(d < (1ULL<<16)) { \
+            /* unsigned 16 */ \
+            unsigned char buf[3]; \
+            buf[0] = 0xcd; _msgpack_store16(&buf[1], (uint16_t)d); \
+            msgpack_pack_append_buffer(x, buf, 3); \
+        } else if(d < (1ULL<<32)) { \
+            /* unsigned 32 */ \
+            unsigned char buf[5]; \
+            buf[0] = 0xce; _msgpack_store32(&buf[1], (uint32_t)d); \
+            msgpack_pack_append_buffer(x, buf, 5); \
+        } else { \
+            /* unsigned 64 */ \
+            unsigned char buf[9]; \
+            buf[0] = 0xcf; _msgpack_store64(&buf[1], d); \
+            msgpack_pack_append_buffer(x, buf, 9); \
+        } \
+    } \
+} while(0)
+
+#define msgpack_pack_real_int8(x, d) \
+do { \
+    if(d < -(1<<5)) { \
+        /* signed 8 */ \
+        unsigned char buf[2] = {0xd0, TAKE8_8(d)}; \
+        msgpack_pack_append_buffer(x, buf, 2); \
+    } else { \
+        /* fixnum */ \
+        msgpack_pack_append_buffer(x, &TAKE8_8(d), 1); \
+    } \
+} while(0)
+
+#define msgpack_pack_real_int16(x, d) \
+do { \
+    if(d < -(1<<5)) { \
+        if(d < -(1<<7)) { \
+            /* signed 16 */ \
+            unsigned char buf[3]; \
+            buf[0] = 0xd1; _msgpack_store16(&buf[1], (int16_t)d); \
+            msgpack_pack_append_buffer(x, buf, 3); \
+        } else { \
+            /* signed 8 */ \
+            unsigned char buf[2] = {0xd0, TAKE8_16(d)}; \
+            msgpack_pack_append_buffer(x, buf, 2); \
+        } \
+    } else if(d < (1<<7)) { \
+        /* fixnum */ \
+        msgpack_pack_append_buffer(x, &TAKE8_16(d), 1); \
+    } else { \
+        if(d < (1<<8)) { \
+            /* unsigned 8 */ \
+            unsigned char buf[2] = {0xcc, TAKE8_16(d)}; \
+            msgpack_pack_append_buffer(x, buf, 2); \
+        } else { \
+            /* unsigned 16 */ \
+            unsigned char buf[3]; \
+            buf[0] = 0xcd; _msgpack_store16(&buf[1], (uint16_t)d); \
+            msgpack_pack_append_buffer(x, buf, 3); \
+        } \
+    } \
+} while(0)
+
+#define msgpack_pack_real_int32(x, d) \
+do { \
+    if(d < -(1<<5)) { \
+        if(d < -(1<<15)) { \
+            /* signed 32 */ \
+            unsigned char buf[5]; \
+            buf[0] = 0xd2; _msgpack_store32(&buf[1], (int32_t)d); \
+            msgpack_pack_append_buffer(x, buf, 5); \
+        } else if(d < -(1<<7)) { \
+            /* signed 16 */ \
+            unsigned char buf[3]; \
+            buf[0] = 0xd1; _msgpack_store16(&buf[1], (int16_t)d); \
+            msgpack_pack_append_buffer(x, buf, 3); \
+        } else { \
+            /* signed 8 */ \
+            unsigned char buf[2] = {0xd0, TAKE8_32(d)}; \
+            msgpack_pack_append_buffer(x, buf, 2); \
+        } \
+    } else if(d < (1<<7)) { \
+        /* fixnum */ \
+        msgpack_pack_append_buffer(x, &TAKE8_32(d), 1); \
+    } else { \
+        if(d < (1<<8)) { \
+            /* unsigned 8 */ \
+            unsigned char buf[2] = {0xcc, TAKE8_32(d)}; \
+            msgpack_pack_append_buffer(x, buf, 2); \
+        } else if(d < (1<<16)) { \
+            /* unsigned 16 */ \
+            unsigned char buf[3]; \
+            buf[0] = 0xcd; _msgpack_store16(&buf[1], (uint16_t)d); \
+            msgpack_pack_append_buffer(x, buf, 3); \
+        } else { \
+            /* unsigned 32 */ \
+            unsigned char buf[5]; \
+            buf[0] = 0xce; _msgpack_store32(&buf[1], (uint32_t)d); \
+            msgpack_pack_append_buffer(x, buf, 5); \
+        } \
+    } \
+} while(0)
+
+#define msgpack_pack_real_int64(x, d) \
+do { \
+    if(d < -(1LL<<5)) { \
+        if(d < -(1LL<<15)) { \
+            if(d < -(1LL<<31)) { \
+                /* signed 64 */ \
+                unsigned char buf[9]; \
+                buf[0] = 0xd3; _msgpack_store64(&buf[1], d); \
+                msgpack_pack_append_buffer(x, buf, 9); \
+            } else { \
+                /* signed 32 */ \
+                unsigned char buf[5]; \
+                buf[0] = 0xd2; _msgpack_store32(&buf[1], (int32_t)d); \
+                msgpack_pack_append_buffer(x, buf, 5); \
+            } \
+        } else { \
+            if(d < -(1<<7)) { \
+                /* signed 16 */ \
+                unsigned char buf[3]; \
+                buf[0] = 0xd1; _msgpack_store16(&buf[1], (int16_t)d); \
+                msgpack_pack_append_buffer(x, buf, 3); \
+            } else { \
+                /* signed 8 */ \
+                unsigned char buf[2] = {0xd0, TAKE8_64(d)}; \
+                msgpack_pack_append_buffer(x, buf, 2); \
+            } \
+        } \
+    } else if(d < (1<<7)) { \
+        /* fixnum */ \
+        msgpack_pack_append_buffer(x, &TAKE8_64(d), 1); \
+    } else { \
+        if(d < (1LL<<16)) { \
+            if(d < (1<<8)) { \
+                /* unsigned 8 */ \
+                unsigned char buf[2] = {0xcc, TAKE8_64(d)}; \
+                msgpack_pack_append_buffer(x, buf, 2); \
+            } else { \
+                /* unsigned 16 */ \
+                unsigned char buf[3]; \
+                buf[0] = 0xcd; _msgpack_store16(&buf[1], (uint16_t)d); \
+                msgpack_pack_append_buffer(x, buf, 3); \
+            } \
+        } else { \
+            if(d < (1LL<<32)) { \
+                /* unsigned 32 */ \
+                unsigned char buf[5]; \
+                buf[0] = 0xce; _msgpack_store32(&buf[1], (uint32_t)d); \
+                msgpack_pack_append_buffer(x, buf, 5); \
+            } else { \
+                /* unsigned 64 */ \
+                unsigned char buf[9]; \
+                buf[0] = 0xcf; _msgpack_store64(&buf[1], d); \
+                msgpack_pack_append_buffer(x, buf, 9); \
+            } \
+        } \
+    } \
+} while(0)
+
+
+static inline int msgpack_pack_uint8(msgpack_packer* x, uint8_t d)
+{
+    msgpack_pack_real_uint8(x, d);
+}
+
+static inline int msgpack_pack_uint16(msgpack_packer* x, uint16_t d)
+{
+    msgpack_pack_real_uint16(x, d);
+}
+
+static inline int msgpack_pack_uint32(msgpack_packer* x, uint32_t d)
+{
+    msgpack_pack_real_uint32(x, d);
+}
+
+static inline int msgpack_pack_uint64(msgpack_packer* x, uint64_t d)
+{
+    msgpack_pack_real_uint64(x, d);
+}
+
+static inline int msgpack_pack_int8(msgpack_packer* x, int8_t d)
+{
+    msgpack_pack_real_int8(x, d);
+}
+
+static inline int msgpack_pack_int16(msgpack_packer* x, int16_t d)
+{
+    msgpack_pack_real_int16(x, d);
+}
+
+static inline int msgpack_pack_int32(msgpack_packer* x, int32_t d)
+{
+    msgpack_pack_real_int32(x, d);
+}
+
+static inline int msgpack_pack_int64(msgpack_packer* x, int64_t d)
+{
+    msgpack_pack_real_int64(x, d);
+}
+
+
+//#ifdef msgpack_pack_inline_func_cint
+
+static inline int msgpack_pack_short(msgpack_packer* x, short d)
+{
+#if defined(SIZEOF_SHORT)
+#if SIZEOF_SHORT == 2
+    msgpack_pack_real_int16(x, d);
+#elif SIZEOF_SHORT == 4
+    msgpack_pack_real_int32(x, d);
+#else
+    msgpack_pack_real_int64(x, d);
+#endif
+
+#elif defined(SHRT_MAX)
+#if SHRT_MAX == 0x7fff
+    msgpack_pack_real_int16(x, d);
+#elif SHRT_MAX == 0x7fffffff
+    msgpack_pack_real_int32(x, d);
+#else
+    msgpack_pack_real_int64(x, d);
+#endif
+
+#else
+if(sizeof(short) == 2) {
+    msgpack_pack_real_int16(x, d);
+} else if(sizeof(short) == 4) {
+    msgpack_pack_real_int32(x, d);
+} else {
+    msgpack_pack_real_int64(x, d);
+}
+#endif
+}
+
+static inline int msgpack_pack_int(msgpack_packer* x, int d)
+{
+#if defined(SIZEOF_INT)
+#if SIZEOF_INT == 2
+    msgpack_pack_real_int16(x, d);
+#elif SIZEOF_INT == 4
+    msgpack_pack_real_int32(x, d);
+#else
+    msgpack_pack_real_int64(x, d);
+#endif
+
+#elif defined(INT_MAX)
+#if INT_MAX == 0x7fff
+    msgpack_pack_real_int16(x, d);
+#elif INT_MAX == 0x7fffffff
+    msgpack_pack_real_int32(x, d);
+#else
+    msgpack_pack_real_int64(x, d);
+#endif
+
+#else
+if(sizeof(int) == 2) {
+    msgpack_pack_real_int16(x, d);
+} else if(sizeof(int) == 4) {
+    msgpack_pack_real_int32(x, d);
+} else {
+    msgpack_pack_real_int64(x, d);
+}
+#endif
+}
+
+static inline int msgpack_pack_long(msgpack_packer* x, long d)
+{
+#if defined(SIZEOF_LONG)
+#if SIZEOF_LONG == 2
+    msgpack_pack_real_int16(x, d);
+#elif SIZEOF_LONG == 4
+    msgpack_pack_real_int32(x, d);
+#else
+    msgpack_pack_real_int64(x, d);
+#endif
+
+#elif defined(LONG_MAX)
+#if LONG_MAX == 0x7fffL
+    msgpack_pack_real_int16(x, d);
+#elif LONG_MAX == 0x7fffffffL
+    msgpack_pack_real_int32(x, d);
+#else
+    msgpack_pack_real_int64(x, d);
+#endif
+
+#else
+if(sizeof(long) == 2) {
+    msgpack_pack_real_int16(x, d);
+} else if(sizeof(long) == 4) {
+    msgpack_pack_real_int32(x, d);
+} else {
+    msgpack_pack_real_int64(x, d);
+}
+#endif
+}
+
+static inline int msgpack_pack_long_long(msgpack_packer* x, long long d)
+{
+#if defined(SIZEOF_LONG_LONG)
+#if SIZEOF_LONG_LONG == 2
+    msgpack_pack_real_int16(x, d);
+#elif SIZEOF_LONG_LONG == 4
+    msgpack_pack_real_int32(x, d);
+#else
+    msgpack_pack_real_int64(x, d);
+#endif
+
+#elif defined(LLONG_MAX)
+#if LLONG_MAX == 0x7fffL
+    msgpack_pack_real_int16(x, d);
+#elif LLONG_MAX == 0x7fffffffL
+    msgpack_pack_real_int32(x, d);
+#else
+    msgpack_pack_real_int64(x, d);
+#endif
+
+#else
+if(sizeof(long long) == 2) {
+    msgpack_pack_real_int16(x, d);
+} else if(sizeof(long long) == 4) {
+    msgpack_pack_real_int32(x, d);
+} else {
+    msgpack_pack_real_int64(x, d);
+}
+#endif
+}
+
+static inline int msgpack_pack_unsigned_short(msgpack_packer* x, unsigned short d)
+{
+#if defined(SIZEOF_SHORT)
+#if SIZEOF_SHORT == 2
+    msgpack_pack_real_uint16(x, d);
+#elif SIZEOF_SHORT == 4
+    msgpack_pack_real_uint32(x, d);
+#else
+    msgpack_pack_real_uint64(x, d);
+#endif
+
+#elif defined(USHRT_MAX)
+#if USHRT_MAX == 0xffffU
+    msgpack_pack_real_uint16(x, d);
+#elif USHRT_MAX == 0xffffffffU
+    msgpack_pack_real_uint32(x, d);
+#else
+    msgpack_pack_real_uint64(x, d);
+#endif
+
+#else
+if(sizeof(unsigned short) == 2) {
+    msgpack_pack_real_uint16(x, d);
+} else if(sizeof(unsigned short) == 4) {
+    msgpack_pack_real_uint32(x, d);
+} else {
+    msgpack_pack_real_uint64(x, d);
+}
+#endif
+}
+
+static inline int msgpack_pack_unsigned_int(msgpack_packer* x, unsigned int d)
+{
+#if defined(SIZEOF_INT)
+#if SIZEOF_INT == 2
+    msgpack_pack_real_uint16(x, d);
+#elif SIZEOF_INT == 4
+    msgpack_pack_real_uint32(x, d);
+#else
+    msgpack_pack_real_uint64(x, d);
+#endif
+
+#elif defined(UINT_MAX)
+#if UINT_MAX == 0xffffU
+    msgpack_pack_real_uint16(x, d);
+#elif UINT_MAX == 0xffffffffU
+    msgpack_pack_real_uint32(x, d);
+#else
+    msgpack_pack_real_uint64(x, d);
+#endif
+
+#else
+if(sizeof(unsigned int) == 2) {
+    msgpack_pack_real_uint16(x, d);
+} else if(sizeof(unsigned int) == 4) {
+    msgpack_pack_real_uint32(x, d);
+} else {
+    msgpack_pack_real_uint64(x, d);
+}
+#endif
+}
+
+static inline int msgpack_pack_unsigned_long(msgpack_packer* x, unsigned long d)
+{
+#if defined(SIZEOF_LONG)
+#if SIZEOF_LONG == 2
+    msgpack_pack_real_uint16(x, d);
+#elif SIZEOF_LONG == 4
+    msgpack_pack_real_uint32(x, d);
+#else
+    msgpack_pack_real_uint64(x, d);
+#endif
+
+#elif defined(ULONG_MAX)
+#if ULONG_MAX == 0xffffUL
+    msgpack_pack_real_uint16(x, d);
+#elif ULONG_MAX == 0xffffffffUL
+    msgpack_pack_real_uint32(x, d);
+#else
+    msgpack_pack_real_uint64(x, d);
+#endif
+
+#else
+if(sizeof(unsigned long) == 2) {
+    msgpack_pack_real_uint16(x, d);
+} else if(sizeof(unsigned long) == 4) {
+    msgpack_pack_real_uint32(x, d);
+} else {
+    msgpack_pack_real_uint64(x, d);
+}
+#endif
+}
+
+static inline int msgpack_pack_unsigned_long_long(msgpack_packer* x, unsigned long long d)
+{
+#if defined(SIZEOF_LONG_LONG)
+#if SIZEOF_LONG_LONG == 2
+    msgpack_pack_real_uint16(x, d);
+#elif SIZEOF_LONG_LONG == 4
+    msgpack_pack_real_uint32(x, d);
+#else
+    msgpack_pack_real_uint64(x, d);
+#endif
+
+#elif defined(ULLONG_MAX)
+#if ULLONG_MAX == 0xffffUL
+    msgpack_pack_real_uint16(x, d);
+#elif ULLONG_MAX == 0xffffffffUL
+    msgpack_pack_real_uint32(x, d);
+#else
+    msgpack_pack_real_uint64(x, d);
+#endif
+
+#else
+if(sizeof(unsigned long long) == 2) {
+    msgpack_pack_real_uint16(x, d);
+} else if(sizeof(unsigned long long) == 4) {
+    msgpack_pack_real_uint32(x, d);
+} else {
+    msgpack_pack_real_uint64(x, d);
+}
+#endif
+}
+
+//#undef msgpack_pack_inline_func_cint
+//#endif
+
+
+
+/*
+ * Float
+ */
+
+static inline int msgpack_pack_float(msgpack_packer* x, float d)
+{
+    union { float f; uint32_t i; } mem;
+    mem.f = d;
+    unsigned char buf[5];
+    buf[0] = 0xca; _msgpack_store32(&buf[1], mem.i);
+    msgpack_pack_append_buffer(x, buf, 5);
+}
+
+static inline int msgpack_pack_double(msgpack_packer* x, double d)
+{
+    union { double f; uint64_t i; } mem;
+    mem.f = d;
+    unsigned char buf[9];
+    buf[0] = 0xcb;
+#if defined(__arm__) && !(__ARM_EABI__) // arm-oabi
+    // https://github.com/msgpack/msgpack-perl/pull/1
+    mem.i = (mem.i & 0xFFFFFFFFUL) << 32UL | (mem.i >> 32UL);
+#endif
+    _msgpack_store64(&buf[1], mem.i);
+    msgpack_pack_append_buffer(x, buf, 9);
+}
+
+
+/*
+ * Nil
+ */
+
+static inline int msgpack_pack_nil(msgpack_packer* x)
+{
+    static const unsigned char d = 0xc0;
+    msgpack_pack_append_buffer(x, &d, 1);
+}
+
+
+/*
+ * Boolean
+ */
+
+static inline int msgpack_pack_true(msgpack_packer* x)
+{
+    static const unsigned char d = 0xc3;
+    msgpack_pack_append_buffer(x, &d, 1);
+}
+
+static inline int msgpack_pack_false(msgpack_packer* x)
+{
+    static const unsigned char d = 0xc2;
+    msgpack_pack_append_buffer(x, &d, 1);
+}
+
+
+/*
+ * Array
+ */
+
+static inline int msgpack_pack_array(msgpack_packer* x, unsigned int n)
+{
+    if(n < 16) {
+        unsigned char d = 0x90 | n;
+        msgpack_pack_append_buffer(x, &d, 1);
+    } else if(n < 65536) {
+        unsigned char buf[3];
+        buf[0] = 0xdc; _msgpack_store16(&buf[1], (uint16_t)n);
+        msgpack_pack_append_buffer(x, buf, 3);
+    } else {
+        unsigned char buf[5];
+        buf[0] = 0xdd; _msgpack_store32(&buf[1], (uint32_t)n);
+        msgpack_pack_append_buffer(x, buf, 5);
+    }
+}
+
+
+/*
+ * Map
+ */
+
+static inline int msgpack_pack_map(msgpack_packer* x, unsigned int n)
+{
+    if(n < 16) {
+        unsigned char d = 0x80 | n;
+        msgpack_pack_append_buffer(x, &TAKE8_8(d), 1);
+    } else if(n < 65536) {
+        unsigned char buf[3];
+        buf[0] = 0xde; _msgpack_store16(&buf[1], (uint16_t)n);
+        msgpack_pack_append_buffer(x, buf, 3);
+    } else {
+        unsigned char buf[5];
+        buf[0] = 0xdf; _msgpack_store32(&buf[1], (uint32_t)n);
+        msgpack_pack_append_buffer(x, buf, 5);
+    }
+}
+
+
+/*
+ * Raw
+ */
+
+static inline int msgpack_pack_raw(msgpack_packer* x, size_t l)
+{
+    if (l < 32) {
+        unsigned char d = 0xa0 | (uint8_t)l;
+        msgpack_pack_append_buffer(x, &TAKE8_8(d), 1);
+    } else if (x->use_bin_type && l < 256) {  // str8 is new format introduced with bin.
+        unsigned char buf[2] = {0xd9, (uint8_t)l};
+        msgpack_pack_append_buffer(x, buf, 2);
+    } else if (l < 65536) {
+        unsigned char buf[3];
+        buf[0] = 0xda; _msgpack_store16(&buf[1], (uint16_t)l);
+        msgpack_pack_append_buffer(x, buf, 3);
+    } else {
+        unsigned char buf[5];
+        buf[0] = 0xdb; _msgpack_store32(&buf[1], (uint32_t)l);
+        msgpack_pack_append_buffer(x, buf, 5);
+    }
+}
+
+/*
+ * bin
+ */
+static inline int msgpack_pack_bin(msgpack_packer *x, size_t l)
+{
+    if (!x->use_bin_type) {
+        return msgpack_pack_raw(x, l);
+    }
+    if (l < 256) {
+        unsigned char buf[2] = {0xc4, (unsigned char)l};
+        msgpack_pack_append_buffer(x, buf, 2);
+    } else if (l < 65536) {
+        unsigned char buf[3] = {0xc5};
+        _msgpack_store16(&buf[1], (uint16_t)l);
+        msgpack_pack_append_buffer(x, buf, 3);
+    } else {
+        unsigned char buf[5] = {0xc6};
+        _msgpack_store32(&buf[1], (uint32_t)l);
+        msgpack_pack_append_buffer(x, buf, 5);
+    }
+}
+
+static inline int msgpack_pack_raw_body(msgpack_packer* x, const void* b, size_t l)
+{
+    if (l > 0) msgpack_pack_append_buffer(x, (const unsigned char*)b, l);
+    return 0;
+}
+
+/*
+ * Ext
+ */
+static inline int msgpack_pack_ext(msgpack_packer* x, char typecode, size_t l)
+{
+    if (l == 1) {
+        unsigned char buf[2];
+        buf[0] = 0xd4;
+        buf[1] = (unsigned char)typecode;
+        msgpack_pack_append_buffer(x, buf, 2);
+    }
+    else if(l == 2) {
+        unsigned char buf[2];
+        buf[0] = 0xd5;
+        buf[1] = (unsigned char)typecode;
+        msgpack_pack_append_buffer(x, buf, 2);
+    }
+    else if(l == 4) {
+        unsigned char buf[2];
+        buf[0] = 0xd6;
+        buf[1] = (unsigned char)typecode;
+        msgpack_pack_append_buffer(x, buf, 2);
+    }
+    else if(l == 8) {
+        unsigned char buf[2];
+        buf[0] = 0xd7;
+        buf[1] = (unsigned char)typecode;
+        msgpack_pack_append_buffer(x, buf, 2);
+    }
+    else if(l == 16) {
+        unsigned char buf[2];
+        buf[0] = 0xd8;
+        buf[1] = (unsigned char)typecode;
+        msgpack_pack_append_buffer(x, buf, 2);
+    }
+    else if(l < 256) {
+        unsigned char buf[3];
+        buf[0] = 0xc7;
+        buf[1] = l;
+        buf[2] = (unsigned char)typecode;
+        msgpack_pack_append_buffer(x, buf, 3);
+    } else if(l < 65536) {
+        unsigned char buf[4];
+        buf[0] = 0xc8;
+        _msgpack_store16(&buf[1], (uint16_t)l);
+        buf[3] = (unsigned char)typecode;
+        msgpack_pack_append_buffer(x, buf, 4);
+    } else {
+        unsigned char buf[6];
+        buf[0] = 0xc9;
+        _msgpack_store32(&buf[1], (uint32_t)l);
+        buf[5] = (unsigned char)typecode;
+        msgpack_pack_append_buffer(x, buf, 6);
+    }
+
+}
+
+
+
+#undef msgpack_pack_append_buffer
+
+#undef TAKE8_8
+#undef TAKE8_16
+#undef TAKE8_32
+#undef TAKE8_64
+
+#undef msgpack_pack_real_uint8
+#undef msgpack_pack_real_uint16
+#undef msgpack_pack_real_uint32
+#undef msgpack_pack_real_uint64
+#undef msgpack_pack_real_int8
+#undef msgpack_pack_real_int16
+#undef msgpack_pack_real_int32
+#undef msgpack_pack_real_int64

+ 194 - 0
src/borg/_msgpack/sysdep.h

@@ -0,0 +1,194 @@
+/*
+ * MessagePack system dependencies
+ *
+ * Copyright (C) 2008-2010 FURUHASHI Sadayuki
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+#ifndef MSGPACK_SYSDEP_H__
+#define MSGPACK_SYSDEP_H__
+
+#include <stdlib.h>
+#include <stddef.h>
+#if defined(_MSC_VER) && _MSC_VER < 1600
+typedef __int8 int8_t;
+typedef unsigned __int8 uint8_t;
+typedef __int16 int16_t;
+typedef unsigned __int16 uint16_t;
+typedef __int32 int32_t;
+typedef unsigned __int32 uint32_t;
+typedef __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+#elif defined(_MSC_VER)  // && _MSC_VER >= 1600
+#include <stdint.h>
+#else
+#include <stdint.h>
+#include <stdbool.h>
+#endif
+
+#ifdef _WIN32
+#define _msgpack_atomic_counter_header <windows.h>
+typedef long _msgpack_atomic_counter_t;
+#define _msgpack_sync_decr_and_fetch(ptr) InterlockedDecrement(ptr)
+#define _msgpack_sync_incr_and_fetch(ptr) InterlockedIncrement(ptr)
+#elif defined(__GNUC__) && ((__GNUC__*10 + __GNUC_MINOR__) < 41)
+#define _msgpack_atomic_counter_header "gcc_atomic.h"
+#else
+typedef unsigned int _msgpack_atomic_counter_t;
+#define _msgpack_sync_decr_and_fetch(ptr) __sync_sub_and_fetch(ptr, 1)
+#define _msgpack_sync_incr_and_fetch(ptr) __sync_add_and_fetch(ptr, 1)
+#endif
+
+#ifdef _WIN32
+
+#ifdef __cplusplus
+/* numeric_limits<T>::min,max */
+#ifdef max
+#undef max
+#endif
+#ifdef min
+#undef min
+#endif
+#endif
+
+#else
+#include <arpa/inet.h>  /* __BYTE_ORDER */
+#endif
+
+#if !defined(__LITTLE_ENDIAN__) && !defined(__BIG_ENDIAN__)
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define __LITTLE_ENDIAN__
+#elif __BYTE_ORDER == __BIG_ENDIAN
+#define __BIG_ENDIAN__
+#elif _WIN32
+#define __LITTLE_ENDIAN__
+#endif
+#endif
+
+
+#ifdef __LITTLE_ENDIAN__
+
+#ifdef _WIN32
+#  if defined(ntohs)
+#    define _msgpack_be16(x) ntohs(x)
+#  elif defined(_byteswap_ushort) || (defined(_MSC_VER) && _MSC_VER >= 1400)
+#    define _msgpack_be16(x) ((uint16_t)_byteswap_ushort((unsigned short)x))
+#  else
+#    define _msgpack_be16(x) ( \
+        ((((uint16_t)x) <<  8) ) | \
+        ((((uint16_t)x) >>  8) ) )
+#  endif
+#else
+#  define _msgpack_be16(x) ntohs(x)
+#endif
+
+#ifdef _WIN32
+#  if defined(ntohl)
+#    define _msgpack_be32(x) ntohl(x)
+#  elif defined(_byteswap_ulong) || (defined(_MSC_VER) && _MSC_VER >= 1400)
+#    define _msgpack_be32(x) ((uint32_t)_byteswap_ulong((unsigned long)x))
+#  else
+#    define _msgpack_be32(x) \
+        ( ((((uint32_t)x) << 24)               ) | \
+          ((((uint32_t)x) <<  8) & 0x00ff0000U ) | \
+          ((((uint32_t)x) >>  8) & 0x0000ff00U ) | \
+          ((((uint32_t)x) >> 24)               ) )
+#  endif
+#else
+#  define _msgpack_be32(x) ntohl(x)
+#endif
+
+#if defined(_byteswap_uint64) || (defined(_MSC_VER) && _MSC_VER >= 1400)
+#  define _msgpack_be64(x) (_byteswap_uint64(x))
+#elif defined(bswap_64)
+#  define _msgpack_be64(x) bswap_64(x)
+#elif defined(__DARWIN_OSSwapInt64)
+#  define _msgpack_be64(x) __DARWIN_OSSwapInt64(x)
+#else
+#define _msgpack_be64(x) \
+    ( ((((uint64_t)x) << 56)                         ) | \
+      ((((uint64_t)x) << 40) & 0x00ff000000000000ULL ) | \
+      ((((uint64_t)x) << 24) & 0x0000ff0000000000ULL ) | \
+      ((((uint64_t)x) <<  8) & 0x000000ff00000000ULL ) | \
+      ((((uint64_t)x) >>  8) & 0x00000000ff000000ULL ) | \
+      ((((uint64_t)x) >> 24) & 0x0000000000ff0000ULL ) | \
+      ((((uint64_t)x) >> 40) & 0x000000000000ff00ULL ) | \
+      ((((uint64_t)x) >> 56)                         ) )
+#endif
+
+#define _msgpack_load16(cast, from) ((cast)( \
+        (((uint16_t)((uint8_t*)(from))[0]) << 8) | \
+        (((uint16_t)((uint8_t*)(from))[1])     ) ))
+
+#define _msgpack_load32(cast, from) ((cast)( \
+        (((uint32_t)((uint8_t*)(from))[0]) << 24) | \
+        (((uint32_t)((uint8_t*)(from))[1]) << 16) | \
+        (((uint32_t)((uint8_t*)(from))[2]) <<  8) | \
+        (((uint32_t)((uint8_t*)(from))[3])      ) ))
+
+#define _msgpack_load64(cast, from) ((cast)( \
+        (((uint64_t)((uint8_t*)(from))[0]) << 56) | \
+        (((uint64_t)((uint8_t*)(from))[1]) << 48) | \
+        (((uint64_t)((uint8_t*)(from))[2]) << 40) | \
+        (((uint64_t)((uint8_t*)(from))[3]) << 32) | \
+        (((uint64_t)((uint8_t*)(from))[4]) << 24) | \
+        (((uint64_t)((uint8_t*)(from))[5]) << 16) | \
+        (((uint64_t)((uint8_t*)(from))[6]) << 8)  | \
+        (((uint64_t)((uint8_t*)(from))[7])     )  ))
+
+#else
+
+#define _msgpack_be16(x) (x)
+#define _msgpack_be32(x) (x)
+#define _msgpack_be64(x) (x)
+
+#define _msgpack_load16(cast, from) ((cast)( \
+        (((uint16_t)((uint8_t*)from)[0]) << 8) | \
+        (((uint16_t)((uint8_t*)from)[1])     ) ))
+
+#define _msgpack_load32(cast, from) ((cast)( \
+        (((uint32_t)((uint8_t*)from)[0]) << 24) | \
+        (((uint32_t)((uint8_t*)from)[1]) << 16) | \
+        (((uint32_t)((uint8_t*)from)[2]) <<  8) | \
+        (((uint32_t)((uint8_t*)from)[3])      ) ))
+
+#define _msgpack_load64(cast, from) ((cast)( \
+        (((uint64_t)((uint8_t*)from)[0]) << 56) | \
+        (((uint64_t)((uint8_t*)from)[1]) << 48) | \
+        (((uint64_t)((uint8_t*)from)[2]) << 40) | \
+        (((uint64_t)((uint8_t*)from)[3]) << 32) | \
+        (((uint64_t)((uint8_t*)from)[4]) << 24) | \
+        (((uint64_t)((uint8_t*)from)[5]) << 16) | \
+        (((uint64_t)((uint8_t*)from)[6]) << 8)  | \
+        (((uint64_t)((uint8_t*)from)[7])     )  ))
+#endif
+
+
+#define _msgpack_store16(to, num) \
+    do { uint16_t val = _msgpack_be16(num); memcpy(to, &val, 2); } while(0)
+#define _msgpack_store32(to, num) \
+    do { uint32_t val = _msgpack_be32(num); memcpy(to, &val, 4); } while(0)
+#define _msgpack_store64(to, num) \
+    do { uint64_t val = _msgpack_be64(num); memcpy(to, &val, 8); } while(0)
+
+/*
+#define _msgpack_load16(cast, from) \
+    ({ cast val; memcpy(&val, (char*)from, 2); _msgpack_be16(val); })
+#define _msgpack_load32(cast, from) \
+    ({ cast val; memcpy(&val, (char*)from, 4); _msgpack_be32(val); })
+#define _msgpack_load64(cast, from) \
+    ({ cast val; memcpy(&val, (char*)from, 8); _msgpack_be64(val); })
+*/
+
+
+#endif /* msgpack/sysdep.h */

+ 282 - 0
src/borg/_msgpack/unpack.h

@@ -0,0 +1,282 @@
+/*
+ * MessagePack for Python unpacking routine
+ *
+ * Copyright (C) 2009 Naoki INADA
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+#define MSGPACK_EMBED_STACK_SIZE  (1024)
+#include "unpack_define.h"
+
+typedef struct unpack_user {
+    bool use_list;
+    bool raw;
+    bool has_pairs_hook;
+    PyObject *object_hook;
+    PyObject *list_hook;
+    PyObject *ext_hook;
+    const char *encoding;
+    const char *unicode_errors;
+    Py_ssize_t max_str_len, max_bin_len, max_array_len, max_map_len, max_ext_len;
+} unpack_user;
+
+typedef PyObject* msgpack_unpack_object;
+struct unpack_context;
+typedef struct unpack_context unpack_context;
+typedef int (*execute_fn)(unpack_context *ctx, const char* data, Py_ssize_t len, Py_ssize_t* off);
+
+static inline msgpack_unpack_object unpack_callback_root(unpack_user* u)
+{
+    return NULL;
+}
+
+static inline int unpack_callback_uint16(unpack_user* u, uint16_t d, msgpack_unpack_object* o)
+{
+    PyObject *p = PyInt_FromLong((long)d);
+    if (!p)
+        return -1;
+    *o = p;
+    return 0;
+}
+static inline int unpack_callback_uint8(unpack_user* u, uint8_t d, msgpack_unpack_object* o)
+{
+    return unpack_callback_uint16(u, d, o);
+}
+
+
+static inline int unpack_callback_uint32(unpack_user* u, uint32_t d, msgpack_unpack_object* o)
+{
+    PyObject *p = PyInt_FromSize_t((size_t)d);
+    if (!p)
+        return -1;
+    *o = p;
+    return 0;
+}
+
+static inline int unpack_callback_uint64(unpack_user* u, uint64_t d, msgpack_unpack_object* o)
+{
+    PyObject *p;
+    if (d > LONG_MAX) {
+        p = PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG)d);
+    } else {
+        p = PyInt_FromLong((long)d);
+    }
+    if (!p)
+        return -1;
+    *o = p;
+    return 0;
+}
+
+static inline int unpack_callback_int32(unpack_user* u, int32_t d, msgpack_unpack_object* o)
+{
+    PyObject *p = PyInt_FromLong(d);
+    if (!p)
+        return -1;
+    *o = p;
+    return 0;
+}
+
+static inline int unpack_callback_int16(unpack_user* u, int16_t d, msgpack_unpack_object* o)
+{
+    return unpack_callback_int32(u, d, o);
+}
+
+static inline int unpack_callback_int8(unpack_user* u, int8_t d, msgpack_unpack_object* o)
+{
+    return unpack_callback_int32(u, d, o);
+}
+
+static inline int unpack_callback_int64(unpack_user* u, int64_t d, msgpack_unpack_object* o)
+{
+    PyObject *p;
+    if (d > LONG_MAX || d < LONG_MIN) {
+        p = PyLong_FromLongLong((PY_LONG_LONG)d);
+    } else {
+        p = PyInt_FromLong((long)d);
+    }
+    *o = p;
+    return 0;
+}
+
+static inline int unpack_callback_double(unpack_user* u, double d, msgpack_unpack_object* o)
+{
+    PyObject *p = PyFloat_FromDouble(d);
+    if (!p)
+        return -1;
+    *o = p;
+    return 0;
+}
+
+static inline int unpack_callback_float(unpack_user* u, float d, msgpack_unpack_object* o)
+{
+    return unpack_callback_double(u, d, o);
+}
+
+static inline int unpack_callback_nil(unpack_user* u, msgpack_unpack_object* o)
+{ Py_INCREF(Py_None); *o = Py_None; return 0; }
+
+static inline int unpack_callback_true(unpack_user* u, msgpack_unpack_object* o)
+{ Py_INCREF(Py_True); *o = Py_True; return 0; }
+
+static inline int unpack_callback_false(unpack_user* u, msgpack_unpack_object* o)
+{ Py_INCREF(Py_False); *o = Py_False; return 0; }
+
+static inline int unpack_callback_array(unpack_user* u, unsigned int n, msgpack_unpack_object* o)
+{
+    if (n > u->max_array_len) {
+        PyErr_Format(PyExc_ValueError, "%u exceeds max_array_len(%zd)", n, u->max_array_len);
+        return -1;
+    }
+    PyObject *p = u->use_list ? PyList_New(n) : PyTuple_New(n);
+
+    if (!p)
+        return -1;
+    *o = p;
+    return 0;
+}
+
+static inline int unpack_callback_array_item(unpack_user* u, unsigned int current, msgpack_unpack_object* c, msgpack_unpack_object o)
+{
+    if (u->use_list)
+        PyList_SET_ITEM(*c, current, o);
+    else
+        PyTuple_SET_ITEM(*c, current, o);
+    return 0;
+}
+
+static inline int unpack_callback_array_end(unpack_user* u, msgpack_unpack_object* c)
+{
+    if (u->list_hook) {
+        PyObject *new_c = PyObject_CallFunctionObjArgs(u->list_hook, *c, NULL);
+        if (!new_c)
+            return -1;
+        Py_DECREF(*c);
+        *c = new_c;
+    }
+    return 0;
+}
+
+static inline int unpack_callback_map(unpack_user* u, unsigned int n, msgpack_unpack_object* o)
+{
+    if (n > u->max_map_len) {
+        PyErr_Format(PyExc_ValueError, "%u exceeds max_map_len(%zd)", n, u->max_map_len);
+        return -1;
+    }
+    PyObject *p;
+    if (u->has_pairs_hook) {
+        p = PyList_New(n); // Or use tuple?
+    }
+    else {
+        p = PyDict_New();
+    }
+    if (!p)
+        return -1;
+    *o = p;
+    return 0;
+}
+
+static inline int unpack_callback_map_item(unpack_user* u, unsigned int current, msgpack_unpack_object* c, msgpack_unpack_object k, msgpack_unpack_object v)
+{
+    if (u->has_pairs_hook) {
+        msgpack_unpack_object item = PyTuple_Pack(2, k, v);
+        if (!item)
+            return -1;
+        Py_DECREF(k);
+        Py_DECREF(v);
+        PyList_SET_ITEM(*c, current, item);
+        return 0;
+    }
+    else if (PyDict_SetItem(*c, k, v) == 0) {
+        Py_DECREF(k);
+        Py_DECREF(v);
+        return 0;
+    }
+    return -1;
+}
+
+static inline int unpack_callback_map_end(unpack_user* u, msgpack_unpack_object* c)
+{
+    if (u->object_hook) {
+        PyObject *new_c = PyObject_CallFunctionObjArgs(u->object_hook, *c, NULL);
+        if (!new_c)
+            return -1;
+
+        Py_DECREF(*c);
+        *c = new_c;
+    }
+    return 0;
+}
+
+static inline int unpack_callback_raw(unpack_user* u, const char* b, const char* p, unsigned int l, msgpack_unpack_object* o)
+{
+    if (l > u->max_str_len) {
+        PyErr_Format(PyExc_ValueError, "%u exceeds max_str_len(%zd)", l, u->max_str_len);
+        return -1;
+    }
+
+    PyObject *py;
+
+    if (u->encoding) {
+        py = PyUnicode_Decode(p, l, u->encoding, u->unicode_errors);
+    } else if (u->raw) {
+        py = PyBytes_FromStringAndSize(p, l);
+    } else {
+        py = PyUnicode_DecodeUTF8(p, l, u->unicode_errors);
+    }
+    if (!py)
+        return -1;
+    *o = py;
+    return 0;
+}
+
+static inline int unpack_callback_bin(unpack_user* u, const char* b, const char* p, unsigned int l, msgpack_unpack_object* o)
+{
+    if (l > u->max_bin_len) {
+        PyErr_Format(PyExc_ValueError, "%u exceeds max_bin_len(%zd)", l, u->max_bin_len);
+        return -1;
+    }
+
+    PyObject *py = PyBytes_FromStringAndSize(p, l);
+    if (!py)
+        return -1;
+    *o = py;
+    return 0;
+}
+
+static inline int unpack_callback_ext(unpack_user* u, const char* base, const char* pos,
+                                      unsigned int length, msgpack_unpack_object* o)
+{
+    PyObject *py;
+    int8_t typecode = (int8_t)*pos++;
+    if (!u->ext_hook) {
+        PyErr_SetString(PyExc_AssertionError, "u->ext_hook cannot be NULL");
+        return -1;
+    }
+    if (length-1 > u->max_ext_len) {
+        PyErr_Format(PyExc_ValueError, "%u exceeds max_ext_len(%zd)", length, u->max_ext_len);
+        return -1;
+    }
+    // length also includes the typecode, so the actual data is length-1
+#if PY_MAJOR_VERSION == 2
+    py = PyObject_CallFunction(u->ext_hook, "(is#)", (int)typecode, pos, (Py_ssize_t)length-1);
+#else
+    py = PyObject_CallFunction(u->ext_hook, "(iy#)", (int)typecode, pos, (Py_ssize_t)length-1);
+#endif
+    if (!py)
+        return -1;
+    *o = py;
+    return 0;
+}
+
+#include "unpack_template.h"

+ 95 - 0
src/borg/_msgpack/unpack_define.h

@@ -0,0 +1,95 @@
+/*
+ * MessagePack unpacking routine template
+ *
+ * Copyright (C) 2008-2010 FURUHASHI Sadayuki
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+#ifndef MSGPACK_UNPACK_DEFINE_H__
+#define MSGPACK_UNPACK_DEFINE_H__
+
+#include "msgpack/sysdep.h"
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <stdio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#ifndef MSGPACK_EMBED_STACK_SIZE
+#define MSGPACK_EMBED_STACK_SIZE 32
+#endif
+
+
+// CS is first byte & 0x1f
+typedef enum {
+    CS_HEADER            = 0x00,  // nil
+
+    //CS_                = 0x01,
+    //CS_                = 0x02,  // false
+    //CS_                = 0x03,  // true
+
+    CS_BIN_8             = 0x04,
+    CS_BIN_16            = 0x05,
+    CS_BIN_32            = 0x06,
+
+    CS_EXT_8             = 0x07,
+    CS_EXT_16            = 0x08,
+    CS_EXT_32            = 0x09,
+
+    CS_FLOAT             = 0x0a,
+    CS_DOUBLE            = 0x0b,
+    CS_UINT_8            = 0x0c,
+    CS_UINT_16           = 0x0d,
+    CS_UINT_32           = 0x0e,
+    CS_UINT_64           = 0x0f,
+    CS_INT_8             = 0x10,
+    CS_INT_16            = 0x11,
+    CS_INT_32            = 0x12,
+    CS_INT_64            = 0x13,
+
+    //CS_FIXEXT1           = 0x14,
+    //CS_FIXEXT2           = 0x15,
+    //CS_FIXEXT4           = 0x16,
+    //CS_FIXEXT8           = 0x17,
+    //CS_FIXEXT16          = 0x18,
+
+    CS_RAW_8             = 0x19,
+    CS_RAW_16            = 0x1a,
+    CS_RAW_32            = 0x1b,
+    CS_ARRAY_16          = 0x1c,
+    CS_ARRAY_32          = 0x1d,
+    CS_MAP_16            = 0x1e,
+    CS_MAP_32            = 0x1f,
+
+    ACS_RAW_VALUE,
+    ACS_BIN_VALUE,
+    ACS_EXT_VALUE,
+} msgpack_unpack_state;
+
+
+typedef enum {
+    CT_ARRAY_ITEM,
+    CT_MAP_KEY,
+    CT_MAP_VALUE,
+} msgpack_container_type;
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* msgpack/unpack_define.h */

+ 479 - 0
src/borg/_msgpack/unpack_template.h

@@ -0,0 +1,479 @@
+/*
+ * MessagePack unpacking routine template
+ *
+ * Copyright (C) 2008-2010 FURUHASHI Sadayuki
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+#ifndef USE_CASE_RANGE
+#if !defined(_MSC_VER)
+#define USE_CASE_RANGE
+#endif
+#endif
+
+typedef struct unpack_stack {
+    PyObject* obj;
+    Py_ssize_t size;
+    Py_ssize_t count;
+    unsigned int ct;
+    PyObject* map_key;
+} unpack_stack;
+
+struct unpack_context {
+    unpack_user user;
+    unsigned int cs;
+    unsigned int trail;
+    unsigned int top;
+    /*
+    unpack_stack* stack;
+    unsigned int stack_size;
+    unpack_stack embed_stack[MSGPACK_EMBED_STACK_SIZE];
+    */
+    unpack_stack stack[MSGPACK_EMBED_STACK_SIZE];
+};
+
+
+static inline void unpack_init(unpack_context* ctx)
+{
+    ctx->cs = CS_HEADER;
+    ctx->trail = 0;
+    ctx->top = 0;
+    /*
+    ctx->stack = ctx->embed_stack;
+    ctx->stack_size = MSGPACK_EMBED_STACK_SIZE;
+    */
+    ctx->stack[0].obj = unpack_callback_root(&ctx->user);
+}
+
+/*
+static inline void unpack_destroy(unpack_context* ctx)
+{
+    if(ctx->stack_size != MSGPACK_EMBED_STACK_SIZE) {
+        free(ctx->stack);
+    }
+}
+*/
+
+static inline PyObject* unpack_data(unpack_context* ctx)
+{
+    return (ctx)->stack[0].obj;
+}
+
+static inline void unpack_clear(unpack_context *ctx)
+{
+    Py_CLEAR(ctx->stack[0].obj);
+}
+
+template <bool construct>
+static inline int unpack_execute(unpack_context* ctx, const char* data, Py_ssize_t len, Py_ssize_t* off)
+{
+    assert(len >= *off);
+
+    const unsigned char* p = (unsigned char*)data + *off;
+    const unsigned char* const pe = (unsigned char*)data + len;
+    const void* n = p;
+
+    unsigned int trail = ctx->trail;
+    unsigned int cs = ctx->cs;
+    unsigned int top = ctx->top;
+    unpack_stack* stack = ctx->stack;
+    /*
+    unsigned int stack_size = ctx->stack_size;
+    */
+    unpack_user* user = &ctx->user;
+
+    PyObject* obj = NULL;
+    unpack_stack* c = NULL;
+
+    int ret;
+
+#define construct_cb(name) \
+    construct && unpack_callback ## name
+
+#define push_simple_value(func) \
+    if(construct_cb(func)(user, &obj) < 0) { goto _failed; } \
+    goto _push
+#define push_fixed_value(func, arg) \
+    if(construct_cb(func)(user, arg, &obj) < 0) { goto _failed; } \
+    goto _push
+#define push_variable_value(func, base, pos, len) \
+    if(construct_cb(func)(user, \
+        (const char*)base, (const char*)pos, len, &obj) < 0) { goto _failed; } \
+    goto _push
+
+#define again_fixed_trail(_cs, trail_len) \
+    trail = trail_len; \
+    cs = _cs; \
+    goto _fixed_trail_again
+#define again_fixed_trail_if_zero(_cs, trail_len, ifzero) \
+    trail = trail_len; \
+    if(trail == 0) { goto ifzero; } \
+    cs = _cs; \
+    goto _fixed_trail_again
+
+#define start_container(func, count_, ct_) \
+    if(top >= MSGPACK_EMBED_STACK_SIZE) { goto _failed; } /* FIXME */ \
+    if(construct_cb(func)(user, count_, &stack[top].obj) < 0) { goto _failed; } \
+    if((count_) == 0) { obj = stack[top].obj; \
+        if (construct_cb(func##_end)(user, &obj) < 0) { goto _failed; } \
+        goto _push; } \
+    stack[top].ct = ct_; \
+    stack[top].size  = count_; \
+    stack[top].count = 0; \
+    ++top; \
+    /*printf("container %d count %d stack %d\n",stack[top].obj,count_,top);*/ \
+    /*printf("stack push %d\n", top);*/ \
+    /* FIXME \
+    if(top >= stack_size) { \
+        if(stack_size == MSGPACK_EMBED_STACK_SIZE) { \
+            size_t csize = sizeof(unpack_stack) * MSGPACK_EMBED_STACK_SIZE; \
+            size_t nsize = csize * 2; \
+            unpack_stack* tmp = (unpack_stack*)malloc(nsize); \
+            if(tmp == NULL) { goto _failed; } \
+            memcpy(tmp, ctx->stack, csize); \
+            ctx->stack = stack = tmp; \
+            ctx->stack_size = stack_size = MSGPACK_EMBED_STACK_SIZE * 2; \
+        } else { \
+            size_t nsize = sizeof(unpack_stack) * ctx->stack_size * 2; \
+            unpack_stack* tmp = (unpack_stack*)realloc(ctx->stack, nsize); \
+            if(tmp == NULL) { goto _failed; } \
+            ctx->stack = stack = tmp; \
+            ctx->stack_size = stack_size = stack_size * 2; \
+        } \
+    } \
+    */ \
+    goto _header_again
+
+#define NEXT_CS(p)  ((unsigned int)*p & 0x1f)
+
+#ifdef USE_CASE_RANGE
+#define SWITCH_RANGE_BEGIN     switch(*p) {
+#define SWITCH_RANGE(FROM, TO) case FROM ... TO:
+#define SWITCH_RANGE_DEFAULT   default:
+#define SWITCH_RANGE_END       }
+#else
+#define SWITCH_RANGE_BEGIN     { if(0) {
+#define SWITCH_RANGE(FROM, TO) } else if(FROM <= *p && *p <= TO) {
+#define SWITCH_RANGE_DEFAULT   } else {
+#define SWITCH_RANGE_END       } }
+#endif
+
+    if(p == pe) { goto _out; }
+    do {
+        switch(cs) {
+        case CS_HEADER:
+            SWITCH_RANGE_BEGIN
+            SWITCH_RANGE(0x00, 0x7f)  // Positive Fixnum
+                push_fixed_value(_uint8, *(uint8_t*)p);
+            SWITCH_RANGE(0xe0, 0xff)  // Negative Fixnum
+                push_fixed_value(_int8, *(int8_t*)p);
+            SWITCH_RANGE(0xc0, 0xdf)  // Variable
+                switch(*p) {
+                case 0xc0:  // nil
+                    push_simple_value(_nil);
+                //case 0xc1:  // never used
+                case 0xc2:  // false
+                    push_simple_value(_false);
+                case 0xc3:  // true
+                    push_simple_value(_true);
+                case 0xc4:  // bin 8
+                    again_fixed_trail(NEXT_CS(p), 1);
+                case 0xc5:  // bin 16
+                    again_fixed_trail(NEXT_CS(p), 2);
+                case 0xc6:  // bin 32
+                    again_fixed_trail(NEXT_CS(p), 4);
+                case 0xc7:  // ext 8
+                    again_fixed_trail(NEXT_CS(p), 1);
+                case 0xc8:  // ext 16
+                    again_fixed_trail(NEXT_CS(p), 2);
+                case 0xc9:  // ext 32
+                    again_fixed_trail(NEXT_CS(p), 4);
+                case 0xca:  // float
+                case 0xcb:  // double
+                case 0xcc:  // unsigned int  8
+                case 0xcd:  // unsigned int 16
+                case 0xce:  // unsigned int 32
+                case 0xcf:  // unsigned int 64
+                case 0xd0:  // signed int  8
+                case 0xd1:  // signed int 16
+                case 0xd2:  // signed int 32
+                case 0xd3:  // signed int 64
+                    again_fixed_trail(NEXT_CS(p), 1 << (((unsigned int)*p) & 0x03));
+                case 0xd4:  // fixext 1
+                case 0xd5:  // fixext 2
+                case 0xd6:  // fixext 4
+                case 0xd7:  // fixext 8
+                    again_fixed_trail_if_zero(ACS_EXT_VALUE, 
+                                              (1 << (((unsigned int)*p) & 0x03))+1,
+                                              _ext_zero);
+                case 0xd8:  // fixext 16
+                    again_fixed_trail_if_zero(ACS_EXT_VALUE, 16+1, _ext_zero);
+                case 0xd9:  // str 8
+                    again_fixed_trail(NEXT_CS(p), 1);
+                case 0xda:  // raw 16
+                case 0xdb:  // raw 32
+                case 0xdc:  // array 16
+                case 0xdd:  // array 32
+                case 0xde:  // map 16
+                case 0xdf:  // map 32
+                    again_fixed_trail(NEXT_CS(p), 2 << (((unsigned int)*p) & 0x01));
+                default:
+                    goto _failed;
+                }
+            SWITCH_RANGE(0xa0, 0xbf)  // FixRaw
+                again_fixed_trail_if_zero(ACS_RAW_VALUE, ((unsigned int)*p & 0x1f), _raw_zero);
+            SWITCH_RANGE(0x90, 0x9f)  // FixArray
+                start_container(_array, ((unsigned int)*p) & 0x0f, CT_ARRAY_ITEM);
+            SWITCH_RANGE(0x80, 0x8f)  // FixMap
+                start_container(_map, ((unsigned int)*p) & 0x0f, CT_MAP_KEY);
+
+            SWITCH_RANGE_DEFAULT
+                goto _failed;
+            SWITCH_RANGE_END
+            // end CS_HEADER
+
+
+        _fixed_trail_again:
+            ++p;
+
+        default:
+            if((size_t)(pe - p) < trail) { goto _out; }
+            n = p;  p += trail - 1;
+            switch(cs) {
+            case CS_EXT_8:
+                again_fixed_trail_if_zero(ACS_EXT_VALUE, *(uint8_t*)n+1, _ext_zero);
+            case CS_EXT_16:
+                again_fixed_trail_if_zero(ACS_EXT_VALUE,
+                                          _msgpack_load16(uint16_t,n)+1,
+                                          _ext_zero);
+            case CS_EXT_32:
+                again_fixed_trail_if_zero(ACS_EXT_VALUE,
+                                          _msgpack_load32(uint32_t,n)+1,
+                                          _ext_zero);
+            case CS_FLOAT: {
+                    union { uint32_t i; float f; } mem;
+                    mem.i = _msgpack_load32(uint32_t,n);
+                    push_fixed_value(_float, mem.f); }
+            case CS_DOUBLE: {
+                    union { uint64_t i; double f; } mem;
+                    mem.i = _msgpack_load64(uint64_t,n);
+#if defined(__arm__) && !(__ARM_EABI__) // arm-oabi
+                    // https://github.com/msgpack/msgpack-perl/pull/1
+                    mem.i = (mem.i & 0xFFFFFFFFUL) << 32UL | (mem.i >> 32UL);
+#endif
+                    push_fixed_value(_double, mem.f); }
+            case CS_UINT_8:
+                push_fixed_value(_uint8, *(uint8_t*)n);
+            case CS_UINT_16:
+                push_fixed_value(_uint16, _msgpack_load16(uint16_t,n));
+            case CS_UINT_32:
+                push_fixed_value(_uint32, _msgpack_load32(uint32_t,n));
+            case CS_UINT_64:
+                push_fixed_value(_uint64, _msgpack_load64(uint64_t,n));
+
+            case CS_INT_8:
+                push_fixed_value(_int8, *(int8_t*)n);
+            case CS_INT_16:
+                push_fixed_value(_int16, _msgpack_load16(int16_t,n));
+            case CS_INT_32:
+                push_fixed_value(_int32, _msgpack_load32(int32_t,n));
+            case CS_INT_64:
+                push_fixed_value(_int64, _msgpack_load64(int64_t,n));
+
+            case CS_BIN_8:
+                again_fixed_trail_if_zero(ACS_BIN_VALUE, *(uint8_t*)n, _bin_zero);
+            case CS_BIN_16:
+                again_fixed_trail_if_zero(ACS_BIN_VALUE, _msgpack_load16(uint16_t,n), _bin_zero);
+            case CS_BIN_32:
+                again_fixed_trail_if_zero(ACS_BIN_VALUE, _msgpack_load32(uint32_t,n), _bin_zero);
+            case ACS_BIN_VALUE:
+            _bin_zero:
+                push_variable_value(_bin, data, n, trail);
+
+            case CS_RAW_8:
+                again_fixed_trail_if_zero(ACS_RAW_VALUE, *(uint8_t*)n, _raw_zero);
+            case CS_RAW_16:
+                again_fixed_trail_if_zero(ACS_RAW_VALUE, _msgpack_load16(uint16_t,n), _raw_zero);
+            case CS_RAW_32:
+                again_fixed_trail_if_zero(ACS_RAW_VALUE, _msgpack_load32(uint32_t,n), _raw_zero);
+            case ACS_RAW_VALUE:
+            _raw_zero:
+                push_variable_value(_raw, data, n, trail);
+
+            case ACS_EXT_VALUE:
+            _ext_zero:
+                push_variable_value(_ext, data, n, trail);
+
+            case CS_ARRAY_16:
+                start_container(_array, _msgpack_load16(uint16_t,n), CT_ARRAY_ITEM);
+            case CS_ARRAY_32:
+                /* FIXME security guard */
+                start_container(_array, _msgpack_load32(uint32_t,n), CT_ARRAY_ITEM);
+
+            case CS_MAP_16:
+                start_container(_map, _msgpack_load16(uint16_t,n), CT_MAP_KEY);
+            case CS_MAP_32:
+                /* FIXME security guard */
+                start_container(_map, _msgpack_load32(uint32_t,n), CT_MAP_KEY);
+
+            default:
+                goto _failed;
+            }
+        }
+
+_push:
+    if(top == 0) { goto _finish; }
+    c = &stack[top-1];
+    switch(c->ct) {
+    case CT_ARRAY_ITEM:
+        if(construct_cb(_array_item)(user, c->count, &c->obj, obj) < 0) { goto _failed; }
+        if(++c->count == c->size) {
+            obj = c->obj;
+            if (construct_cb(_array_end)(user, &obj) < 0) { goto _failed; }
+            --top;
+            /*printf("stack pop %d\n", top);*/
+            goto _push;
+        }
+        goto _header_again;
+    case CT_MAP_KEY:
+        c->map_key = obj;
+        c->ct = CT_MAP_VALUE;
+        goto _header_again;
+    case CT_MAP_VALUE:
+        if(construct_cb(_map_item)(user, c->count, &c->obj, c->map_key, obj) < 0) { goto _failed; }
+        if(++c->count == c->size) {
+            obj = c->obj;
+            if (construct_cb(_map_end)(user, &obj) < 0) { goto _failed; }
+            --top;
+            /*printf("stack pop %d\n", top);*/
+            goto _push;
+        }
+        c->ct = CT_MAP_KEY;
+        goto _header_again;
+
+    default:
+        goto _failed;
+    }
+
+_header_again:
+        cs = CS_HEADER;
+        ++p;
+    } while(p != pe);
+    goto _out;
+
+
+_finish:
+    if (!construct)
+        unpack_callback_nil(user, &obj);
+    stack[0].obj = obj;
+    ++p;
+    ret = 1;
+    /*printf("-- finish --\n"); */
+    goto _end;
+
+_failed:
+    /*printf("** FAILED **\n"); */
+    ret = -1;
+    goto _end;
+
+_out:
+    ret = 0;
+    goto _end;
+
+_end:
+    ctx->cs = cs;
+    ctx->trail = trail;
+    ctx->top = top;
+    *off = p - (const unsigned char*)data;
+
+    return ret;
+#undef construct_cb
+}
+
+#undef SWITCH_RANGE_BEGIN
+#undef SWITCH_RANGE
+#undef SWITCH_RANGE_DEFAULT
+#undef SWITCH_RANGE_END
+#undef push_simple_value
+#undef push_fixed_value
+#undef push_variable_value
+#undef again_fixed_trail
+#undef again_fixed_trail_if_zero
+#undef start_container
+
+template <unsigned int fixed_offset, unsigned int var_offset>
+static inline int unpack_container_header(unpack_context* ctx, const char* data, Py_ssize_t len, Py_ssize_t* off)
+{
+    assert(len >= *off);
+    uint32_t size;
+    const unsigned char *const p = (unsigned char*)data + *off;
+
+#define inc_offset(inc) \
+    if (len - *off < inc) \
+        return 0; \
+    *off += inc;
+
+    switch (*p) {
+    case var_offset:
+        inc_offset(3);
+        size = _msgpack_load16(uint16_t, p + 1);
+        break;
+    case var_offset + 1:
+        inc_offset(5);
+        size = _msgpack_load32(uint32_t, p + 1);
+        break;
+#ifdef USE_CASE_RANGE
+    case fixed_offset + 0x0 ... fixed_offset + 0xf:
+#else
+    case fixed_offset + 0x0:
+    case fixed_offset + 0x1:
+    case fixed_offset + 0x2:
+    case fixed_offset + 0x3:
+    case fixed_offset + 0x4:
+    case fixed_offset + 0x5:
+    case fixed_offset + 0x6:
+    case fixed_offset + 0x7:
+    case fixed_offset + 0x8:
+    case fixed_offset + 0x9:
+    case fixed_offset + 0xa:
+    case fixed_offset + 0xb:
+    case fixed_offset + 0xc:
+    case fixed_offset + 0xd:
+    case fixed_offset + 0xe:
+    case fixed_offset + 0xf:
+#endif
+        ++*off;
+        size = ((unsigned int)*p) & 0x0f;
+        break;
+    default:
+        PyErr_SetString(PyExc_ValueError, "Unexpected type header on stream");
+        return -1;
+    }
+    unpack_callback_uint32(&ctx->user, size, &ctx->stack[0].obj);
+    return 1;
+}
+
+#undef SWITCH_RANGE_BEGIN
+#undef SWITCH_RANGE
+#undef SWITCH_RANGE_DEFAULT
+#undef SWITCH_RANGE_END
+
+static const execute_fn unpack_construct = &unpack_execute<true>;
+static const execute_fn unpack_skip = &unpack_execute<false>;
+static const execute_fn read_array_header = &unpack_container_header<0x90, 0xdc>;
+static const execute_fn read_map_header = &unpack_container_header<0x80, 0xde>;
+
+#undef NEXT_CS
+
+/* vim: set ts=4 sw=4 sts=4 expandtab  */

Một số tệp đã không được hiển thị bởi vì quá nhiều tập tin thay đổi trong này khác