1// Protocol Buffers - Google's data interchange format
2// Copyright 2008 Google Inc. All rights reserved.
3// https://developers.google.com/protocol-buffers/
4//
5// Redistribution and use in source and binary forms, with or without
6// modification, are permitted provided that the following conditions are
7// met:
8//
9// * Redistributions of source code must retain the above copyright
10// notice, this list of conditions and the following disclaimer.
11// * Redistributions in binary form must reproduce the above
12// copyright notice, this list of conditions and the following disclaimer
13// in the documentation and/or other materials provided with the
14// distribution.
15// * Neither the name of Google Inc. nor the names of its
16// contributors may be used to endorse or promote products derived from
17// this software without specific prior written permission.
18//
19// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31// Author: kenton@google.com (Kenton Varda) and others
32//
33// Contains basic types and utilities used by the rest of the library.
34
35#ifndef GOOGLE_PROTOBUF_COMMON_H__
36#define GOOGLE_PROTOBUF_COMMON_H__
37
38#include <algorithm>
39#include <iostream>
40#include <map>
41#include <memory>
42#include <set>
43#include <string>
44#include <vector>
45
46#include <google/protobuf/stubs/port.h>
47#include <google/protobuf/stubs/macros.h>
48#include <google/protobuf/stubs/platform_macros.h>
49
50#ifndef PROTOBUF_USE_EXCEPTIONS
51#if defined(_MSC_VER) && defined(_CPPUNWIND)
52 #define PROTOBUF_USE_EXCEPTIONS 1
53#elif defined(__EXCEPTIONS)
54 #define PROTOBUF_USE_EXCEPTIONS 1
55#else
56 #define PROTOBUF_USE_EXCEPTIONS 0
57#endif
58#endif
59
60#if PROTOBUF_USE_EXCEPTIONS
61#include <exception>
62#endif
63#if defined(__APPLE__)
64#include <TargetConditionals.h> // for TARGET_OS_IPHONE
65#endif
66
67#if defined(__ANDROID__) || defined(GOOGLE_PROTOBUF_OS_ANDROID) || (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE) || defined(GOOGLE_PROTOBUF_OS_IPHONE)
68#include <pthread.h>
69#endif
70
71#include <google/protobuf/port_def.inc>
72
73namespace std {}
74
75namespace google {
76namespace protobuf {
77namespace internal {
78
79// Some of these constants are macros rather than const ints so that they can
80// be used in #if directives.
81
82// The current version, represented as a single integer to make comparison
83// easier: major * 10^6 + minor * 10^3 + micro
84#define GOOGLE_PROTOBUF_VERSION 3012004
85
86// A suffix string for alpha, beta or rc releases. Empty for stable releases.
87#define GOOGLE_PROTOBUF_VERSION_SUFFIX ""
88
89// The minimum header version which works with the current version of
90// the library. This constant should only be used by protoc's C++ code
91// generator.
92static const int kMinHeaderVersionForLibrary = 3012000;
93
94// The minimum protoc version which works with the current version of the
95// headers.
96#define GOOGLE_PROTOBUF_MIN_PROTOC_VERSION 3012000
97
98// The minimum header version which works with the current version of
99// protoc. This constant should only be used in VerifyVersion().
100static const int kMinHeaderVersionForProtoc = 3012000;
101
102// Verifies that the headers and libraries are compatible. Use the macro
103// below to call this.
104void PROTOBUF_EXPORT VerifyVersion(int headerVersion, int minLibraryVersion,
105 const char* filename);
106
107// Converts a numeric version number to a string.
108std::string PROTOBUF_EXPORT VersionString(int version);
109
110} // namespace internal
111
112// Place this macro in your main() function (or somewhere before you attempt
113// to use the protobuf library) to verify that the version you link against
114// matches the headers you compiled against. If a version mismatch is
115// detected, the process will abort.
116#define GOOGLE_PROTOBUF_VERIFY_VERSION \
117 ::google::protobuf::internal::VerifyVersion( \
118 GOOGLE_PROTOBUF_VERSION, GOOGLE_PROTOBUF_MIN_LIBRARY_VERSION, \
119 __FILE__)
120
121
122// ===================================================================
123// from google3/util/utf8/public/unilib.h
124
125class StringPiece;
126namespace internal {
127
128// Checks if the buffer contains structurally-valid UTF-8. Implemented in
129// structurally_valid.cc.
130PROTOBUF_EXPORT bool IsStructurallyValidUTF8(const char* buf, int len);
131
132inline bool IsStructurallyValidUTF8(const std::string& str) {
133 return IsStructurallyValidUTF8(buf: str.data(), len: static_cast<int>(str.length()));
134}
135
136// Returns initial number of bytes of structurally valid UTF-8.
137PROTOBUF_EXPORT int UTF8SpnStructurallyValid(const StringPiece& str);
138
139// Coerce UTF-8 byte string in src_str to be
140// a structurally-valid equal-length string by selectively
141// overwriting illegal bytes with replace_char (typically ' ' or '?').
142// replace_char must be legal printable 7-bit Ascii 0x20..0x7e.
143// src_str is read-only.
144//
145// Returns pointer to output buffer, src_str.data() if no changes were made,
146// or idst if some bytes were changed. idst is allocated by the caller
147// and must be at least as big as src_str
148//
149// Optimized for: all structurally valid and no byte copying is done.
150//
151PROTOBUF_EXPORT char* UTF8CoerceToStructurallyValid(const StringPiece& str,
152 char* dst,
153 char replace_char);
154
155} // namespace internal
156
157// This lives in message_lite.h now, but we leave this here for any users that
158// #include common.h and not message_lite.h.
159PROTOBUF_EXPORT void ShutdownProtobufLibrary();
160
161namespace internal {
162
163// Strongly references the given variable such that the linker will be forced
164// to pull in this variable's translation unit.
165template <typename T>
166void StrongReference(const T& var) {
167 auto volatile unused = &var;
168 (void)&unused; // Use address to avoid an extra load of "unused".
169}
170
171} // namespace internal
172
173#if PROTOBUF_USE_EXCEPTIONS
174class FatalException : public std::exception {
175 public:
176 FatalException(const char* filename, int line, const std::string& message)
177 : filename_(filename), line_(line), message_(message) {}
178 virtual ~FatalException() throw();
179
180 virtual const char* what() const throw();
181
182 const char* filename() const { return filename_; }
183 int line() const { return line_; }
184 const std::string& message() const { return message_; }
185
186 private:
187 const char* filename_;
188 const int line_;
189 const std::string message_;
190};
191#endif
192
193// This is at the end of the file instead of the beginning to work around a bug
194// in some versions of MSVC.
195using std::string;
196
197} // namespace protobuf
198} // namespace google
199
200#include <google/protobuf/port_undef.inc>
201
202#endif // GOOGLE_PROTOBUF_COMMON_H__
203

source code of include/google/protobuf/stubs/common.h