1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <Python.h>
namespace google {
namespace protobuf {
namespace python {
// Version constant.
// This is either 0 for python, 1 for CPP V1, 2 for CPP V2.
//
// 0 is default and is equivalent to
// PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=python
//
// 1 is set with -DPYTHON_PROTO2_CPP_IMPL_V1 and is equivalent to
// PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=cpp
// and
// PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION_VERSION=1
//
// 2 is set with -DPYTHON_PROTO2_CPP_IMPL_V2 and is equivalent to
// PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=cpp
// and
// PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION_VERSION=2
#ifdef PYTHON_PROTO2_CPP_IMPL_V1
#error "PYTHON_PROTO2_CPP_IMPL_V1 is no longer supported."
#else
#ifdef PYTHON_PROTO2_CPP_IMPL_V2
static int kImplVersion = 2;
#else
#ifdef PYTHON_PROTO2_PYTHON_IMPL
static int kImplVersion = 0;
#else
static int kImplVersion = -1; // -1 means "Unspecified by compiler flags".
#endif // PYTHON_PROTO2_PYTHON_IMPL
#endif // PYTHON_PROTO2_CPP_IMPL_V2
#endif // PYTHON_PROTO2_CPP_IMPL_V1
static const char* kImplVersionName = "api_version";
static const char* kModuleName = "_api_implementation";
static const char kModuleDocstring[] =
"_api_implementation is a module that exposes compile-time constants that\n"
"determine the default API implementation to use for Python proto2.\n"
"\n"
"It complements api_implementation.py by setting defaults using compile-time\n"
"constants defined in C, such that one can set defaults at compilation\n"
"(e.g. with blaze flag --copt=-DPYTHON_PROTO2_CPP_IMPL_V2).";
#if PY_MAJOR_VERSION >= 3
static struct PyModuleDef _module = {
PyModuleDef_HEAD_INIT,
kModuleName,
kModuleDocstring,
-1,
NULL,
NULL,
NULL,
NULL,
NULL
};
#define INITFUNC PyInit__api_implementation
#define INITFUNC_ERRORVAL NULL
#else
#define INITFUNC init_api_implementation
#define INITFUNC_ERRORVAL
#endif
extern "C" {
PyMODINIT_FUNC INITFUNC() {
#if PY_MAJOR_VERSION >= 3
PyObject *module = PyModule_Create(&_module);
#else
PyObject *module = Py_InitModule3(
const_cast<char*>(kModuleName),
NULL,
const_cast<char*>(kModuleDocstring));
#endif
if (module == NULL) {
return INITFUNC_ERRORVAL;
}
// Adds the module variable "api_version".
if (PyModule_AddIntConstant(
module,
const_cast<char*>(kImplVersionName),
kImplVersion))
#if PY_MAJOR_VERSION < 3
return;
#else
{ Py_DECREF(module); return NULL; }
return module;
#endif
}
}
} // namespace python
} // namespace protobuf
} // namespace google
|
