PageRenderTime 82ms CodeModel.GetById 9ms app.highlight 62ms RepoModel.GetById 1ms app.codeStats 0ms

/thirdparty/breakpad/third_party/protobuf/protobuf/gtest/include/gtest/internal/gtest-port.h

http://github.com/tomahawk-player/tomahawk
C++ Header | 1497 lines | 795 code | 183 blank | 519 comment | 58 complexity | a9c4168d117a18fab771f08826ca1026 MD5 | raw file

Large files files are truncated, but you can click here to view the full file

   1// Copyright 2005, Google Inc.
   2// All rights reserved.
   3//
   4// Redistribution and use in source and binary forms, with or without
   5// modification, are permitted provided that the following conditions are
   6// met:
   7//
   8//     * Redistributions of source code must retain the above copyright
   9// notice, this list of conditions and the following disclaimer.
  10//     * Redistributions in binary form must reproduce the above
  11// copyright notice, this list of conditions and the following disclaimer
  12// in the documentation and/or other materials provided with the
  13// distribution.
  14//     * Neither the name of Google Inc. nor the names of its
  15// contributors may be used to endorse or promote products derived from
  16// this software without specific prior written permission.
  17//
  18// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29//
  30// Authors: wan@google.com (Zhanyong Wan)
  31//
  32// Low-level types and utilities for porting Google Test to various
  33// platforms.  They are subject to change without notice.  DO NOT USE
  34// THEM IN USER CODE.
  35
  36#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_
  37#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_
  38
  39// The user can define the following macros in the build script to
  40// control Google Test's behavior.  If the user doesn't define a macro
  41// in this list, Google Test will define it.
  42//
  43//   GTEST_HAS_CLONE          - Define it to 1/0 to indicate that clone(2)
  44//                              is/isn't available.
  45//   GTEST_HAS_EXCEPTIONS     - Define it to 1/0 to indicate that exceptions
  46//                              are enabled.
  47//   GTEST_HAS_GLOBAL_STRING  - Define it to 1/0 to indicate that ::string
  48//                              is/isn't available (some systems define
  49//                              ::string, which is different to std::string).
  50//   GTEST_HAS_GLOBAL_WSTRING - Define it to 1/0 to indicate that ::string
  51//                              is/isn't available (some systems define
  52//                              ::wstring, which is different to std::wstring).
  53//   GTEST_HAS_PTHREAD        - Define it to 1/0 to indicate that <pthread.h>
  54//                              is/isn't available.
  55//   GTEST_HAS_RTTI           - Define it to 1/0 to indicate that RTTI is/isn't
  56//                              enabled.
  57//   GTEST_HAS_STD_WSTRING    - Define it to 1/0 to indicate that
  58//                              std::wstring does/doesn't work (Google Test can
  59//                              be used where std::wstring is unavailable).
  60//   GTEST_HAS_TR1_TUPLE      - Define it to 1/0 to indicate tr1::tuple
  61//                              is/isn't available.
  62//   GTEST_HAS_SEH            - Define it to 1/0 to indicate whether the
  63//                              compiler supports Microsoft's "Structured
  64//                              Exception Handling".
  65//   GTEST_USE_OWN_TR1_TUPLE  - Define it to 1/0 to indicate whether Google
  66//                              Test's own tr1 tuple implementation should be
  67//                              used.  Unused when the user sets
  68//                              GTEST_HAS_TR1_TUPLE to 0.
  69//   GTEST_LINKED_AS_SHARED_LIBRARY
  70//                            - Define to 1 when compiling tests that use
  71//                              Google Test as a shared library (known as
  72//                              DLL on Windows).
  73//   GTEST_CREATE_SHARED_LIBRARY
  74//                            - Define to 1 when compiling Google Test itself
  75//                              as a shared library.
  76
  77// This header defines the following utilities:
  78//
  79// Macros indicating the current platform (defined to 1 if compiled on
  80// the given platform; otherwise undefined):
  81//   GTEST_OS_AIX      - IBM AIX
  82//   GTEST_OS_CYGWIN   - Cygwin
  83//   GTEST_OS_LINUX    - Linux
  84//   GTEST_OS_MAC      - Mac OS X
  85//   GTEST_OS_SOLARIS  - Sun Solaris
  86//   GTEST_OS_SYMBIAN  - Symbian
  87//   GTEST_OS_WINDOWS  - Windows (Desktop, MinGW, or Mobile)
  88//     GTEST_OS_WINDOWS_DESKTOP  - Windows Desktop
  89//     GTEST_OS_WINDOWS_MINGW    - MinGW
  90//     GTEST_OS_WINDOWS_MOBILE   - Windows Mobile
  91//   GTEST_OS_ZOS      - z/OS
  92//
  93// Among the platforms, Cygwin, Linux, Max OS X, and Windows have the
  94// most stable support.  Since core members of the Google Test project
  95// don't have access to other platforms, support for them may be less
  96// stable.  If you notice any problems on your platform, please notify
  97// googletestframework@googlegroups.com (patches for fixing them are
  98// even more welcome!).
  99//
 100// Note that it is possible that none of the GTEST_OS_* macros are defined.
 101//
 102// Macros indicating available Google Test features (defined to 1 if
 103// the corresponding feature is supported; otherwise undefined):
 104//   GTEST_HAS_COMBINE      - the Combine() function (for value-parameterized
 105//                            tests)
 106//   GTEST_HAS_DEATH_TEST   - death tests
 107//   GTEST_HAS_PARAM_TEST   - value-parameterized tests
 108//   GTEST_HAS_TYPED_TEST   - typed tests
 109//   GTEST_HAS_TYPED_TEST_P - type-parameterized tests
 110//   GTEST_USES_POSIX_RE    - enhanced POSIX regex is used.
 111//   GTEST_USES_SIMPLE_RE   - our own simple regex is used;
 112//                            the above two are mutually exclusive.
 113//   GTEST_CAN_COMPARE_NULL - accepts untyped NULL in EXPECT_EQ().
 114//
 115// Macros for basic C++ coding:
 116//   GTEST_AMBIGUOUS_ELSE_BLOCKER_ - for disabling a gcc warning.
 117//   GTEST_ATTRIBUTE_UNUSED_  - declares that a class' instances or a
 118//                              variable don't have to be used.
 119//   GTEST_DISALLOW_ASSIGN_   - disables operator=.
 120//   GTEST_DISALLOW_COPY_AND_ASSIGN_ - disables copy ctor and operator=.
 121//   GTEST_MUST_USE_RESULT_   - declares that a function's result must be used.
 122//
 123// Synchronization:
 124//   Mutex, MutexLock, ThreadLocal, GetThreadCount()
 125//                  - synchronization primitives.
 126//   GTEST_IS_THREADSAFE - defined to 1 to indicate that the above
 127//                         synchronization primitives have real implementations
 128//                         and Google Test is thread-safe; or 0 otherwise.
 129//
 130// Template meta programming:
 131//   is_pointer     - as in TR1; needed on Symbian and IBM XL C/C++ only.
 132//
 133// Smart pointers:
 134//   scoped_ptr     - as in TR2.
 135//
 136// Regular expressions:
 137//   RE             - a simple regular expression class using the POSIX
 138//                    Extended Regular Expression syntax.  Not available on
 139//                    Windows.
 140//
 141// Logging:
 142//   GTEST_LOG_()   - logs messages at the specified severity level.
 143//   LogToStderr()  - directs all log messages to stderr.
 144//   FlushInfoLog() - flushes informational log messages.
 145//
 146// Stdout and stderr capturing:
 147//   CaptureStdout()     - starts capturing stdout.
 148//   GetCapturedStdout() - stops capturing stdout and returns the captured
 149//                         string.
 150//   CaptureStderr()     - starts capturing stderr.
 151//   GetCapturedStderr() - stops capturing stderr and returns the captured
 152//                         string.
 153//
 154// Integer types:
 155//   TypeWithSize   - maps an integer to a int type.
 156//   Int32, UInt32, Int64, UInt64, TimeInMillis
 157//                  - integers of known sizes.
 158//   BiggestInt     - the biggest signed integer type.
 159//
 160// Command-line utilities:
 161//   GTEST_FLAG()       - references a flag.
 162//   GTEST_DECLARE_*()  - declares a flag.
 163//   GTEST_DEFINE_*()   - defines a flag.
 164//   GetArgvs()         - returns the command line as a vector of strings.
 165//
 166// Environment variable utilities:
 167//   GetEnv()             - gets the value of an environment variable.
 168//   BoolFromGTestEnv()   - parses a bool environment variable.
 169//   Int32FromGTestEnv()  - parses an Int32 environment variable.
 170//   StringFromGTestEnv() - parses a string environment variable.
 171
 172#include <stddef.h>  // For ptrdiff_t
 173#include <stdlib.h>
 174#include <stdio.h>
 175#include <string.h>
 176#ifndef _WIN32_WCE
 177#include <sys/stat.h>
 178#endif  // !_WIN32_WCE
 179
 180#include <iostream>  // NOLINT
 181#include <sstream>  // NOLINT
 182#include <string>  // NOLINT
 183
 184#define GTEST_DEV_EMAIL_ "googletestframework@@googlegroups.com"
 185#define GTEST_FLAG_PREFIX_ "gtest_"
 186#define GTEST_FLAG_PREFIX_DASH_ "gtest-"
 187#define GTEST_FLAG_PREFIX_UPPER_ "GTEST_"
 188#define GTEST_NAME_ "Google Test"
 189#define GTEST_PROJECT_URL_ "http://code.google.com/p/googletest/"
 190
 191// Determines the version of gcc that is used to compile this.
 192#ifdef __GNUC__
 193// 40302 means version 4.3.2.
 194#define GTEST_GCC_VER_ \
 195    (__GNUC__*10000 + __GNUC_MINOR__*100 + __GNUC_PATCHLEVEL__)
 196#endif  // __GNUC__
 197
 198// Determines the platform on which Google Test is compiled.
 199#ifdef __CYGWIN__
 200#define GTEST_OS_CYGWIN 1
 201#elif defined __SYMBIAN32__
 202#define GTEST_OS_SYMBIAN 1
 203#elif defined _WIN32
 204#define GTEST_OS_WINDOWS 1
 205#ifdef _WIN32_WCE
 206#define GTEST_OS_WINDOWS_MOBILE 1
 207#elif defined(__MINGW__) || defined(__MINGW32__)
 208#define GTEST_OS_WINDOWS_MINGW 1
 209#else
 210#define GTEST_OS_WINDOWS_DESKTOP 1
 211#endif  // _WIN32_WCE
 212#elif defined __APPLE__
 213#define GTEST_OS_MAC 1
 214#elif defined __linux__
 215#define GTEST_OS_LINUX 1
 216#elif defined __MVS__
 217#define GTEST_OS_ZOS 1
 218#elif defined(__sun) && defined(__SVR4)
 219#define GTEST_OS_SOLARIS 1
 220#elif defined(_AIX)
 221#define GTEST_OS_AIX 1
 222#endif  // __CYGWIN__
 223
 224#if GTEST_OS_CYGWIN || GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_SYMBIAN || \
 225    GTEST_OS_SOLARIS || GTEST_OS_AIX
 226
 227// On some platforms, <regex.h> needs someone to define size_t, and
 228// won't compile otherwise.  We can #include it here as we already
 229// included <stdlib.h>, which is guaranteed to define size_t through
 230// <stddef.h>.
 231#include <regex.h>  // NOLINT
 232#include <strings.h>  // NOLINT
 233#include <sys/types.h>  // NOLINT
 234#include <time.h>  // NOLINT
 235#include <unistd.h>  // NOLINT
 236
 237#define GTEST_USES_POSIX_RE 1
 238
 239#elif GTEST_OS_WINDOWS
 240
 241#if !GTEST_OS_WINDOWS_MOBILE
 242#include <direct.h>  // NOLINT
 243#include <io.h>  // NOLINT
 244#endif
 245
 246// <regex.h> is not available on Windows.  Use our own simple regex
 247// implementation instead.
 248#define GTEST_USES_SIMPLE_RE 1
 249
 250#else
 251
 252// <regex.h> may not be available on this platform.  Use our own
 253// simple regex implementation instead.
 254#define GTEST_USES_SIMPLE_RE 1
 255
 256#endif  // GTEST_OS_CYGWIN || GTEST_OS_LINUX || GTEST_OS_MAC ||
 257        // GTEST_OS_SYMBIAN || GTEST_OS_SOLARIS || GTEST_OS_AIX
 258
 259#ifndef GTEST_HAS_EXCEPTIONS
 260// The user didn't tell us whether exceptions are enabled, so we need
 261// to figure it out.
 262#if defined(_MSC_VER) || defined(__BORLANDC__)
 263// MSVC's and C++Builder's implementations of the STL use the _HAS_EXCEPTIONS
 264// macro to enable exceptions, so we'll do the same.
 265// Assumes that exceptions are enabled by default.
 266#ifndef _HAS_EXCEPTIONS
 267#define _HAS_EXCEPTIONS 1
 268#endif  // _HAS_EXCEPTIONS
 269#define GTEST_HAS_EXCEPTIONS _HAS_EXCEPTIONS
 270#elif defined(__GNUC__) && __EXCEPTIONS
 271// gcc defines __EXCEPTIONS to 1 iff exceptions are enabled.
 272#define GTEST_HAS_EXCEPTIONS 1
 273#elif defined(__SUNPRO_CC)
 274// Sun Pro CC supports exceptions.  However, there is no compile-time way of
 275// detecting whether they are enabled or not.  Therefore, we assume that
 276// they are enabled unless the user tells us otherwise.
 277#define GTEST_HAS_EXCEPTIONS 1
 278#elif defined(__IBMCPP__) && __EXCEPTIONS
 279// xlC defines __EXCEPTIONS to 1 iff exceptions are enabled.
 280#define GTEST_HAS_EXCEPTIONS 1
 281#else
 282// For other compilers, we assume exceptions are disabled to be
 283// conservative.
 284#define GTEST_HAS_EXCEPTIONS 0
 285#endif  // defined(_MSC_VER) || defined(__BORLANDC__)
 286#endif  // GTEST_HAS_EXCEPTIONS
 287
 288#if !defined(GTEST_HAS_STD_STRING)
 289// Even though we don't use this macro any longer, we keep it in case
 290// some clients still depend on it.
 291#define GTEST_HAS_STD_STRING 1
 292#elif !GTEST_HAS_STD_STRING
 293// The user told us that ::std::string isn't available.
 294#error "Google Test cannot be used where ::std::string isn't available."
 295#endif  // !defined(GTEST_HAS_STD_STRING)
 296
 297#ifndef GTEST_HAS_GLOBAL_STRING
 298// The user didn't tell us whether ::string is available, so we need
 299// to figure it out.
 300
 301#define GTEST_HAS_GLOBAL_STRING 0
 302
 303#endif  // GTEST_HAS_GLOBAL_STRING
 304
 305#ifndef GTEST_HAS_STD_WSTRING
 306// The user didn't tell us whether ::std::wstring is available, so we need
 307// to figure it out.
 308// TODO(wan@google.com): uses autoconf to detect whether ::std::wstring
 309//   is available.
 310
 311// Cygwin 1.5 and below doesn't support ::std::wstring.
 312// Cygwin 1.7 might add wstring support; this should be updated when clear.
 313// Solaris' libc++ doesn't support it either.
 314#define GTEST_HAS_STD_WSTRING (!(GTEST_OS_CYGWIN || GTEST_OS_SOLARIS))
 315
 316#endif  // GTEST_HAS_STD_WSTRING
 317
 318#ifndef GTEST_HAS_GLOBAL_WSTRING
 319// The user didn't tell us whether ::wstring is available, so we need
 320// to figure it out.
 321#define GTEST_HAS_GLOBAL_WSTRING \
 322    (GTEST_HAS_STD_WSTRING && GTEST_HAS_GLOBAL_STRING)
 323#endif  // GTEST_HAS_GLOBAL_WSTRING
 324
 325// Determines whether RTTI is available.
 326#ifndef GTEST_HAS_RTTI
 327// The user didn't tell us whether RTTI is enabled, so we need to
 328// figure it out.
 329
 330#ifdef _MSC_VER
 331
 332#ifdef _CPPRTTI  // MSVC defines this macro iff RTTI is enabled.
 333#define GTEST_HAS_RTTI 1
 334#else
 335#define GTEST_HAS_RTTI 0
 336#endif
 337
 338// Starting with version 4.3.2, gcc defines __GXX_RTTI iff RTTI is enabled.
 339#elif defined(__GNUC__) && (GTEST_GCC_VER_ >= 40302)
 340
 341#ifdef __GXX_RTTI
 342#define GTEST_HAS_RTTI 1
 343#else
 344#define GTEST_HAS_RTTI 0
 345#endif  // __GXX_RTTI
 346
 347// Starting with version 9.0 IBM Visual Age defines __RTTI_ALL__ to 1 if
 348// both the typeid and dynamic_cast features are present.
 349#elif defined(__IBMCPP__) && (__IBMCPP__ >= 900)
 350
 351#ifdef __RTTI_ALL__
 352#define GTEST_HAS_RTTI 1
 353#else
 354#define GTEST_HAS_RTTI 0
 355#endif
 356
 357#else
 358
 359// For all other compilers, we assume RTTI is enabled.
 360#define GTEST_HAS_RTTI 1
 361
 362#endif  // _MSC_VER
 363
 364#endif  // GTEST_HAS_RTTI
 365
 366// It's this header's responsibility to #include <typeinfo> when RTTI
 367// is enabled.
 368#if GTEST_HAS_RTTI
 369#include <typeinfo>
 370#endif
 371
 372// Determines whether Google Test can use the pthreads library.
 373#ifndef GTEST_HAS_PTHREAD
 374// The user didn't tell us explicitly, so we assume pthreads support is
 375// available on Linux and Mac.
 376//
 377// To disable threading support in Google Test, add -DGTEST_HAS_PTHREAD=0
 378// to your compiler flags.
 379#define GTEST_HAS_PTHREAD (GTEST_OS_LINUX || GTEST_OS_MAC)
 380#endif  // GTEST_HAS_PTHREAD
 381
 382// Determines whether Google Test can use tr1/tuple.  You can define
 383// this macro to 0 to prevent Google Test from using tuple (any
 384// feature depending on tuple with be disabled in this mode).
 385#ifndef GTEST_HAS_TR1_TUPLE
 386// The user didn't tell us not to do it, so we assume it's OK.
 387#define GTEST_HAS_TR1_TUPLE 1
 388#endif  // GTEST_HAS_TR1_TUPLE
 389
 390// Determines whether Google Test's own tr1 tuple implementation
 391// should be used.
 392#ifndef GTEST_USE_OWN_TR1_TUPLE
 393// The user didn't tell us, so we need to figure it out.
 394
 395// We use our own TR1 tuple if we aren't sure the user has an
 396// implementation of it already.  At this time, GCC 4.0.0+ and MSVC
 397// 2010 are the only mainstream compilers that come with a TR1 tuple
 398// implementation.  NVIDIA's CUDA NVCC compiler pretends to be GCC by
 399// defining __GNUC__ and friends, but cannot compile GCC's tuple
 400// implementation.  MSVC 2008 (9.0) provides TR1 tuple in a 323 MB
 401// Feature Pack download, which we cannot assume the user has.
 402#if (defined(__GNUC__) && !defined(__CUDACC__) && (GTEST_GCC_VER_ >= 40000)) \
 403    || _MSC_VER >= 1600
 404#define GTEST_USE_OWN_TR1_TUPLE 0
 405#else
 406#define GTEST_USE_OWN_TR1_TUPLE 1
 407#endif
 408
 409#endif  // GTEST_USE_OWN_TR1_TUPLE
 410
 411// To avoid conditional compilation everywhere, we make it
 412// gtest-port.h's responsibility to #include the header implementing
 413// tr1/tuple.
 414#if GTEST_HAS_TR1_TUPLE
 415
 416#if GTEST_USE_OWN_TR1_TUPLE
 417#include <gtest/internal/gtest-tuple.h>
 418#elif GTEST_OS_SYMBIAN
 419
 420// On Symbian, BOOST_HAS_TR1_TUPLE causes Boost's TR1 tuple library to
 421// use STLport's tuple implementation, which unfortunately doesn't
 422// work as the copy of STLport distributed with Symbian is incomplete.
 423// By making sure BOOST_HAS_TR1_TUPLE is undefined, we force Boost to
 424// use its own tuple implementation.
 425#ifdef BOOST_HAS_TR1_TUPLE
 426#undef BOOST_HAS_TR1_TUPLE
 427#endif  // BOOST_HAS_TR1_TUPLE
 428
 429// This prevents <boost/tr1/detail/config.hpp>, which defines
 430// BOOST_HAS_TR1_TUPLE, from being #included by Boost's <tuple>.
 431#define BOOST_TR1_DETAIL_CONFIG_HPP_INCLUDED
 432#include <tuple>
 433
 434#elif defined(__GNUC__) && (GTEST_GCC_VER_ >= 40000)
 435// GCC 4.0+ implements tr1/tuple in the <tr1/tuple> header.  This does
 436// not conform to the TR1 spec, which requires the header to be <tuple>.
 437
 438#if !GTEST_HAS_RTTI && GTEST_GCC_VER_ < 40302
 439// Until version 4.3.2, gcc has a bug that causes <tr1/functional>,
 440// which is #included by <tr1/tuple>, to not compile when RTTI is
 441// disabled.  _TR1_FUNCTIONAL is the header guard for
 442// <tr1/functional>.  Hence the following #define is a hack to prevent
 443// <tr1/functional> from being included.
 444#define _TR1_FUNCTIONAL 1
 445#include <tr1/tuple>
 446#undef _TR1_FUNCTIONAL  // Allows the user to #include
 447                        // <tr1/functional> if he chooses to.
 448#else
 449#include <tr1/tuple>  // NOLINT
 450#endif  // !GTEST_HAS_RTTI && GTEST_GCC_VER_ < 40302
 451
 452#else
 453// If the compiler is not GCC 4.0+, we assume the user is using a
 454// spec-conforming TR1 implementation.
 455#include <tuple>  // NOLINT
 456#endif  // GTEST_USE_OWN_TR1_TUPLE
 457
 458#endif  // GTEST_HAS_TR1_TUPLE
 459
 460// Determines whether clone(2) is supported.
 461// Usually it will only be available on Linux, excluding
 462// Linux on the Itanium architecture.
 463// Also see http://linux.die.net/man/2/clone.
 464#ifndef GTEST_HAS_CLONE
 465// The user didn't tell us, so we need to figure it out.
 466
 467#if GTEST_OS_LINUX && !defined(__ia64__)
 468#define GTEST_HAS_CLONE 1
 469#else
 470#define GTEST_HAS_CLONE 0
 471#endif  // GTEST_OS_LINUX && !defined(__ia64__)
 472
 473#endif  // GTEST_HAS_CLONE
 474
 475// Determines whether to support stream redirection. This is used to test
 476// output correctness and to implement death tests.
 477#if !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_SYMBIAN
 478#define GTEST_HAS_STREAM_REDIRECTION_ 1
 479#endif  // !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_SYMBIAN
 480
 481// Determines whether to support death tests.
 482// Google Test does not support death tests for VC 7.1 and earlier as
 483// abort() in a VC 7.1 application compiled as GUI in debug config
 484// pops up a dialog window that cannot be suppressed programmatically.
 485#if (GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS || \
 486     (GTEST_OS_WINDOWS_DESKTOP && _MSC_VER >= 1400) || \
 487     GTEST_OS_WINDOWS_MINGW || GTEST_OS_AIX)
 488#define GTEST_HAS_DEATH_TEST 1
 489#include <vector>  // NOLINT
 490#endif
 491
 492// We don't support MSVC 7.1 with exceptions disabled now.  Therefore
 493// all the compilers we care about are adequate for supporting
 494// value-parameterized tests.
 495#define GTEST_HAS_PARAM_TEST 1
 496
 497// Determines whether to support type-driven tests.
 498
 499// Typed tests need <typeinfo> and variadic macros, which GCC, VC++ 8.0,
 500// Sun Pro CC, and IBM Visual Age support.
 501#if defined(__GNUC__) || (_MSC_VER >= 1400) || defined(__SUNPRO_CC) || \
 502    defined(__IBMCPP__)
 503#define GTEST_HAS_TYPED_TEST 1
 504#define GTEST_HAS_TYPED_TEST_P 1
 505#endif
 506
 507// Determines whether to support Combine(). This only makes sense when
 508// value-parameterized tests are enabled.  The implementation doesn't
 509// work on Sun Studio since it doesn't understand templated conversion
 510// operators.
 511#if GTEST_HAS_PARAM_TEST && GTEST_HAS_TR1_TUPLE && !defined(__SUNPRO_CC)
 512#define GTEST_HAS_COMBINE 1
 513#endif
 514
 515// Determines whether the system compiler uses UTF-16 for encoding wide strings.
 516#define GTEST_WIDE_STRING_USES_UTF16_ \
 517    (GTEST_OS_WINDOWS || GTEST_OS_CYGWIN || GTEST_OS_SYMBIAN || GTEST_OS_AIX)
 518
 519// Defines some utility macros.
 520
 521// The GNU compiler emits a warning if nested "if" statements are followed by
 522// an "else" statement and braces are not used to explicitly disambiguate the
 523// "else" binding.  This leads to problems with code like:
 524//
 525//   if (gate)
 526//     ASSERT_*(condition) << "Some message";
 527//
 528// The "switch (0) case 0:" idiom is used to suppress this.
 529#ifdef __INTEL_COMPILER
 530#define GTEST_AMBIGUOUS_ELSE_BLOCKER_
 531#else
 532#define GTEST_AMBIGUOUS_ELSE_BLOCKER_ switch (0) case 0:  // NOLINT
 533#endif
 534
 535// Use this annotation at the end of a struct/class definition to
 536// prevent the compiler from optimizing away instances that are never
 537// used.  This is useful when all interesting logic happens inside the
 538// c'tor and / or d'tor.  Example:
 539//
 540//   struct Foo {
 541//     Foo() { ... }
 542//   } GTEST_ATTRIBUTE_UNUSED_;
 543//
 544// Also use it after a variable or parameter declaration to tell the
 545// compiler the variable/parameter does not have to be used.
 546#if defined(__GNUC__) && !defined(COMPILER_ICC)
 547#define GTEST_ATTRIBUTE_UNUSED_ __attribute__ ((unused))
 548#else
 549#define GTEST_ATTRIBUTE_UNUSED_
 550#endif
 551
 552// A macro to disallow operator=
 553// This should be used in the private: declarations for a class.
 554#define GTEST_DISALLOW_ASSIGN_(type)\
 555  void operator=(type const &)
 556
 557// A macro to disallow copy constructor and operator=
 558// This should be used in the private: declarations for a class.
 559#define GTEST_DISALLOW_COPY_AND_ASSIGN_(type)\
 560  type(type const &);\
 561  GTEST_DISALLOW_ASSIGN_(type)
 562
 563// Tell the compiler to warn about unused return values for functions declared
 564// with this macro.  The macro should be used on function declarations
 565// following the argument list:
 566//
 567//   Sprocket* AllocateSprocket() GTEST_MUST_USE_RESULT_;
 568#if defined(__GNUC__) && (GTEST_GCC_VER_ >= 30400) && !defined(COMPILER_ICC)
 569#define GTEST_MUST_USE_RESULT_ __attribute__ ((warn_unused_result))
 570#else
 571#define GTEST_MUST_USE_RESULT_
 572#endif  // __GNUC__ && (GTEST_GCC_VER_ >= 30400) && !COMPILER_ICC
 573
 574// Determine whether the compiler supports Microsoft's Structured Exception
 575// Handling.  This is supported by several Windows compilers but generally
 576// does not exist on any other system.
 577#ifndef GTEST_HAS_SEH
 578// The user didn't tell us, so we need to figure it out.
 579
 580#if defined(_MSC_VER) || defined(__BORLANDC__)
 581// These two compilers are known to support SEH.
 582#define GTEST_HAS_SEH 1
 583#else
 584// Assume no SEH.
 585#define GTEST_HAS_SEH 0
 586#endif
 587
 588#endif  // GTEST_HAS_SEH
 589
 590#ifdef _MSC_VER
 591
 592#if GTEST_LINKED_AS_SHARED_LIBRARY
 593#define GTEST_API_ __declspec(dllimport)
 594#elif GTEST_CREATE_SHARED_LIBRARY
 595#define GTEST_API_ __declspec(dllexport)
 596#endif
 597
 598#endif  // _MSC_VER
 599
 600#ifndef GTEST_API_
 601#define GTEST_API_
 602#endif
 603
 604namespace testing {
 605
 606class Message;
 607
 608namespace internal {
 609
 610class String;
 611
 612typedef ::std::stringstream StrStream;
 613
 614// A helper for suppressing warnings on constant condition.  It just
 615// returns 'condition'.
 616GTEST_API_ bool IsTrue(bool condition);
 617
 618// Defines scoped_ptr.
 619
 620// This implementation of scoped_ptr is PARTIAL - it only contains
 621// enough stuff to satisfy Google Test's need.
 622template <typename T>
 623class scoped_ptr {
 624 public:
 625  typedef T element_type;
 626
 627  explicit scoped_ptr(T* p = NULL) : ptr_(p) {}
 628  ~scoped_ptr() { reset(); }
 629
 630  T& operator*() const { return *ptr_; }
 631  T* operator->() const { return ptr_; }
 632  T* get() const { return ptr_; }
 633
 634  T* release() {
 635    T* const ptr = ptr_;
 636    ptr_ = NULL;
 637    return ptr;
 638  }
 639
 640  void reset(T* p = NULL) {
 641    if (p != ptr_) {
 642      if (IsTrue(sizeof(T) > 0)) {  // Makes sure T is a complete type.
 643        delete ptr_;
 644      }
 645      ptr_ = p;
 646    }
 647  }
 648 private:
 649  T* ptr_;
 650
 651  GTEST_DISALLOW_COPY_AND_ASSIGN_(scoped_ptr);
 652};
 653
 654// Defines RE.
 655
 656// A simple C++ wrapper for <regex.h>.  It uses the POSIX Extended
 657// Regular Expression syntax.
 658class GTEST_API_ RE {
 659 public:
 660  // A copy constructor is required by the Standard to initialize object
 661  // references from r-values.
 662  RE(const RE& other) { Init(other.pattern()); }
 663
 664  // Constructs an RE from a string.
 665  RE(const ::std::string& regex) { Init(regex.c_str()); }  // NOLINT
 666
 667#if GTEST_HAS_GLOBAL_STRING
 668  RE(const ::string& regex) { Init(regex.c_str()); }  // NOLINT
 669#endif  // GTEST_HAS_GLOBAL_STRING
 670
 671  RE(const char* regex) { Init(regex); }  // NOLINT
 672  ~RE();
 673
 674  // Returns the string representation of the regex.
 675  const char* pattern() const { return pattern_; }
 676
 677  // FullMatch(str, re) returns true iff regular expression re matches
 678  // the entire str.
 679  // PartialMatch(str, re) returns true iff regular expression re
 680  // matches a substring of str (including str itself).
 681  //
 682  // TODO(wan@google.com): make FullMatch() and PartialMatch() work
 683  // when str contains NUL characters.
 684  static bool FullMatch(const ::std::string& str, const RE& re) {
 685    return FullMatch(str.c_str(), re);
 686  }
 687  static bool PartialMatch(const ::std::string& str, const RE& re) {
 688    return PartialMatch(str.c_str(), re);
 689  }
 690
 691#if GTEST_HAS_GLOBAL_STRING
 692  static bool FullMatch(const ::string& str, const RE& re) {
 693    return FullMatch(str.c_str(), re);
 694  }
 695  static bool PartialMatch(const ::string& str, const RE& re) {
 696    return PartialMatch(str.c_str(), re);
 697  }
 698#endif  // GTEST_HAS_GLOBAL_STRING
 699
 700  static bool FullMatch(const char* str, const RE& re);
 701  static bool PartialMatch(const char* str, const RE& re);
 702
 703 private:
 704  void Init(const char* regex);
 705
 706  // We use a const char* instead of a string, as Google Test may be used
 707  // where string is not available.  We also do not use Google Test's own
 708  // String type here, in order to simplify dependencies between the
 709  // files.
 710  const char* pattern_;
 711  bool is_valid_;
 712#if GTEST_USES_POSIX_RE
 713  regex_t full_regex_;     // For FullMatch().
 714  regex_t partial_regex_;  // For PartialMatch().
 715#else  // GTEST_USES_SIMPLE_RE
 716  const char* full_pattern_;  // For FullMatch();
 717#endif
 718
 719  GTEST_DISALLOW_ASSIGN_(RE);
 720};
 721
 722// Defines logging utilities:
 723//   GTEST_LOG_(severity) - logs messages at the specified severity level. The
 724//                          message itself is streamed into the macro.
 725//   LogToStderr()  - directs all log messages to stderr.
 726//   FlushInfoLog() - flushes informational log messages.
 727
 728enum GTestLogSeverity {
 729  GTEST_INFO,
 730  GTEST_WARNING,
 731  GTEST_ERROR,
 732  GTEST_FATAL
 733};
 734
 735// Formats log entry severity, provides a stream object for streaming the
 736// log message, and terminates the message with a newline when going out of
 737// scope.
 738class GTEST_API_ GTestLog {
 739 public:
 740  GTestLog(GTestLogSeverity severity, const char* file, int line);
 741
 742  // Flushes the buffers and, if severity is GTEST_FATAL, aborts the program.
 743  ~GTestLog();
 744
 745  ::std::ostream& GetStream() { return ::std::cerr; }
 746
 747 private:
 748  const GTestLogSeverity severity_;
 749
 750  GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestLog);
 751};
 752
 753#define GTEST_LOG_(severity) \
 754    ::testing::internal::GTestLog(::testing::internal::GTEST_##severity, \
 755                                  __FILE__, __LINE__).GetStream()
 756
 757inline void LogToStderr() {}
 758inline void FlushInfoLog() { fflush(NULL); }
 759
 760// INTERNAL IMPLEMENTATION - DO NOT USE.
 761//
 762// GTEST_CHECK_ is an all-mode assert. It aborts the program if the condition
 763// is not satisfied.
 764//  Synopsys:
 765//    GTEST_CHECK_(boolean_condition);
 766//     or
 767//    GTEST_CHECK_(boolean_condition) << "Additional message";
 768//
 769//    This checks the condition and if the condition is not satisfied
 770//    it prints message about the condition violation, including the
 771//    condition itself, plus additional message streamed into it, if any,
 772//    and then it aborts the program. It aborts the program irrespective of
 773//    whether it is built in the debug mode or not.
 774#define GTEST_CHECK_(condition) \
 775    GTEST_AMBIGUOUS_ELSE_BLOCKER_ \
 776    if (::testing::internal::IsTrue(condition)) \
 777      ; \
 778    else \
 779      GTEST_LOG_(FATAL) << "Condition " #condition " failed. "
 780
 781// An all-mode assert to verify that the given POSIX-style function
 782// call returns 0 (indicating success).  Known limitation: this
 783// doesn't expand to a balanced 'if' statement, so enclose the macro
 784// in {} if you need to use it as the only statement in an 'if'
 785// branch.
 786#define GTEST_CHECK_POSIX_SUCCESS_(posix_call) \
 787  if (const int gtest_error = (posix_call)) \
 788    GTEST_LOG_(FATAL) << #posix_call << "failed with error " \
 789                      << gtest_error
 790
 791// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
 792//
 793// Downcasts the pointer of type Base to Derived.
 794// Derived must be a subclass of Base. The parameter MUST
 795// point to a class of type Derived, not any subclass of it.
 796// When RTTI is available, the function performs a runtime
 797// check to enforce this.
 798template <class Derived, class Base>
 799Derived* CheckedDowncastToActualType(Base* base) {
 800#if GTEST_HAS_RTTI
 801  GTEST_CHECK_(typeid(*base) == typeid(Derived));
 802  return dynamic_cast<Derived*>(base);  // NOLINT
 803#else
 804  return static_cast<Derived*>(base);  // Poor man's downcast.
 805#endif
 806}
 807
 808#if GTEST_HAS_STREAM_REDIRECTION_
 809
 810// Defines the stderr capturer:
 811//   CaptureStdout     - starts capturing stdout.
 812//   GetCapturedStdout - stops capturing stdout and returns the captured string.
 813//   CaptureStderr     - starts capturing stderr.
 814//   GetCapturedStderr - stops capturing stderr and returns the captured string.
 815//
 816GTEST_API_ void CaptureStdout();
 817GTEST_API_ String GetCapturedStdout();
 818GTEST_API_ void CaptureStderr();
 819GTEST_API_ String GetCapturedStderr();
 820
 821#endif  // GTEST_HAS_STREAM_REDIRECTION_
 822
 823
 824#if GTEST_HAS_DEATH_TEST
 825
 826// A copy of all command line arguments.  Set by InitGoogleTest().
 827extern ::std::vector<String> g_argvs;
 828
 829// GTEST_HAS_DEATH_TEST implies we have ::std::string.
 830const ::std::vector<String>& GetArgvs();
 831
 832#endif  // GTEST_HAS_DEATH_TEST
 833
 834// Defines synchronization primitives.
 835
 836#if GTEST_HAS_PTHREAD
 837
 838// Sleeps for (roughly) n milli-seconds.  This function is only for
 839// testing Google Test's own constructs.  Don't use it in user tests,
 840// either directly or indirectly.
 841inline void SleepMilliseconds(int n) {
 842  const timespec time = {
 843    0,                  // 0 seconds.
 844    n * 1000L * 1000L,  // And n ms.
 845  };
 846  nanosleep(&time, NULL);
 847}
 848
 849// Allows a controller thread to pause execution of newly created
 850// threads until notified.  Instances of this class must be created
 851// and destroyed in the controller thread.
 852//
 853// This class is only for testing Google Test's own constructs. Do not
 854// use it in user tests, either directly or indirectly.
 855class Notification {
 856 public:
 857  Notification() : notified_(false) {}
 858
 859  // Notifies all threads created with this notification to start. Must
 860  // be called from the controller thread.
 861  void Notify() { notified_ = true; }
 862
 863  // Blocks until the controller thread notifies. Must be called from a test
 864  // thread.
 865  void WaitForNotification() {
 866    while(!notified_) {
 867      SleepMilliseconds(10);
 868    }
 869  }
 870
 871 private:
 872  volatile bool notified_;
 873
 874  GTEST_DISALLOW_COPY_AND_ASSIGN_(Notification);
 875};
 876
 877// As a C-function, ThreadFuncWithCLinkage cannot be templated itself.
 878// Consequently, it cannot select a correct instantiation of ThreadWithParam
 879// in order to call its Run(). Introducing ThreadWithParamBase as a
 880// non-templated base class for ThreadWithParam allows us to bypass this
 881// problem.
 882class ThreadWithParamBase {
 883 public:
 884  virtual ~ThreadWithParamBase() {}
 885  virtual void Run() = 0;
 886};
 887
 888// pthread_create() accepts a pointer to a function type with the C linkage.
 889// According to the Standard (7.5/1), function types with different linkages
 890// are different even if they are otherwise identical.  Some compilers (for
 891// example, SunStudio) treat them as different types.  Since class methods
 892// cannot be defined with C-linkage we need to define a free C-function to
 893// pass into pthread_create().
 894extern "C" inline void* ThreadFuncWithCLinkage(void* thread) {
 895  static_cast<ThreadWithParamBase*>(thread)->Run();
 896  return NULL;
 897}
 898
 899// Helper class for testing Google Test's multi-threading constructs.
 900// To use it, write:
 901//
 902//   void ThreadFunc(int param) { /* Do things with param */ }
 903//   Notification thread_can_start;
 904//   ...
 905//   // The thread_can_start parameter is optional; you can supply NULL.
 906//   ThreadWithParam<int> thread(&ThreadFunc, 5, &thread_can_start);
 907//   thread_can_start.Notify();
 908//
 909// These classes are only for testing Google Test's own constructs. Do
 910// not use them in user tests, either directly or indirectly.
 911template <typename T>
 912class ThreadWithParam : public ThreadWithParamBase {
 913 public:
 914  typedef void (*UserThreadFunc)(T);
 915
 916  ThreadWithParam(
 917      UserThreadFunc func, T param, Notification* thread_can_start)
 918      : func_(func),
 919        param_(param),
 920        thread_can_start_(thread_can_start),
 921        finished_(false) {
 922    ThreadWithParamBase* const base = this;
 923    // The thread can be created only after all fields except thread_
 924    // have been initialized.
 925    GTEST_CHECK_POSIX_SUCCESS_(
 926        pthread_create(&thread_, 0, &ThreadFuncWithCLinkage, base));
 927  }
 928  ~ThreadWithParam() { Join(); }
 929
 930  void Join() {
 931    if (!finished_) {
 932      GTEST_CHECK_POSIX_SUCCESS_(pthread_join(thread_, 0));
 933      finished_ = true;
 934    }
 935  }
 936
 937  virtual void Run() {
 938    if (thread_can_start_ != NULL)
 939      thread_can_start_->WaitForNotification();
 940    func_(param_);
 941  }
 942
 943 private:
 944  const UserThreadFunc func_;  // User-supplied thread function.
 945  const T param_;  // User-supplied parameter to the thread function.
 946  // When non-NULL, used to block execution until the controller thread
 947  // notifies.
 948  Notification* const thread_can_start_;
 949  bool finished_;  // true iff we know that the thread function has finished.
 950  pthread_t thread_;  // The native thread object.
 951
 952  GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadWithParam);
 953};
 954
 955// gtest-port.h guarantees to #include <pthread.h> when GTEST_HAS_PTHREAD is
 956// true.
 957#include <pthread.h>
 958
 959// MutexBase and Mutex implement mutex on pthreads-based platforms. They
 960// are used in conjunction with class MutexLock:
 961//
 962//   Mutex mutex;
 963//   ...
 964//   MutexLock lock(&mutex);  // Acquires the mutex and releases it at the end
 965//                            // of the current scope.
 966//
 967// MutexBase implements behavior for both statically and dynamically
 968// allocated mutexes.  Do not use MutexBase directly.  Instead, write
 969// the following to define a static mutex:
 970//
 971//   GTEST_DEFINE_STATIC_MUTEX_(g_some_mutex);
 972//
 973// You can forward declare a static mutex like this:
 974//
 975//   GTEST_DECLARE_STATIC_MUTEX_(g_some_mutex);
 976//
 977// To create a dynamic mutex, just define an object of type Mutex.
 978class MutexBase {
 979 public:
 980  // Acquires this mutex.
 981  void Lock() {
 982    GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_lock(&mutex_));
 983    owner_ = pthread_self();
 984  }
 985
 986  // Releases this mutex.
 987  void Unlock() {
 988    // We don't protect writing to owner_ here, as it's the caller's
 989    // responsibility to ensure that the current thread holds the
 990    // mutex when this is called.
 991    owner_ = 0;
 992    GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_unlock(&mutex_));
 993  }
 994
 995  // Does nothing if the current thread holds the mutex. Otherwise, crashes
 996  // with high probability.
 997  void AssertHeld() const {
 998    GTEST_CHECK_(owner_ == pthread_self())
 999        << "The current thread is not holding the mutex @" << this;
1000  }
1001
1002  // A static mutex may be used before main() is entered.  It may even
1003  // be used before the dynamic initialization stage.  Therefore we
1004  // must be able to initialize a static mutex object at link time.
1005  // This means MutexBase has to be a POD and its member variables
1006  // have to be public.
1007 public:
1008  pthread_mutex_t mutex_;  // The underlying pthread mutex.
1009  pthread_t owner_;  // The thread holding the mutex; 0 means no one holds it.
1010};
1011
1012// Forward-declares a static mutex.
1013#define GTEST_DECLARE_STATIC_MUTEX_(mutex) \
1014    extern ::testing::internal::MutexBase mutex
1015
1016// Defines and statically (i.e. at link time) initializes a static mutex.
1017#define GTEST_DEFINE_STATIC_MUTEX_(mutex) \
1018    ::testing::internal::MutexBase mutex = { PTHREAD_MUTEX_INITIALIZER, 0 }
1019
1020// The Mutex class can only be used for mutexes created at runtime. It
1021// shares its API with MutexBase otherwise.
1022class Mutex : public MutexBase {
1023 public:
1024  Mutex() {
1025    GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_init(&mutex_, NULL));
1026    owner_ = 0;
1027  }
1028  ~Mutex() {
1029    GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_destroy(&mutex_));
1030  }
1031
1032 private:
1033  GTEST_DISALLOW_COPY_AND_ASSIGN_(Mutex);
1034};
1035
1036// We cannot name this class MutexLock as the ctor declaration would
1037// conflict with a macro named MutexLock, which is defined on some
1038// platforms.  Hence the typedef trick below.
1039class GTestMutexLock {
1040 public:
1041  explicit GTestMutexLock(MutexBase* mutex)
1042      : mutex_(mutex) { mutex_->Lock(); }
1043
1044  ~GTestMutexLock() { mutex_->Unlock(); }
1045
1046 private:
1047  MutexBase* const mutex_;
1048
1049  GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestMutexLock);
1050};
1051
1052typedef GTestMutexLock MutexLock;
1053
1054// Helpers for ThreadLocal.
1055
1056// pthread_key_create() requires DeleteThreadLocalValue() to have
1057// C-linkage.  Therefore it cannot be templatized to access
1058// ThreadLocal<T>.  Hence the need for class
1059// ThreadLocalValueHolderBase.
1060class ThreadLocalValueHolderBase {
1061 public:
1062  virtual ~ThreadLocalValueHolderBase() {}
1063};
1064
1065// Called by pthread to delete thread-local data stored by
1066// pthread_setspecific().
1067extern "C" inline void DeleteThreadLocalValue(void* value_holder) {
1068  delete static_cast<ThreadLocalValueHolderBase*>(value_holder);
1069}
1070
1071// Implements thread-local storage on pthreads-based systems.
1072//
1073//   // Thread 1
1074//   ThreadLocal<int> tl(100);  // 100 is the default value for each thread.
1075//
1076//   // Thread 2
1077//   tl.set(150);  // Changes the value for thread 2 only.
1078//   EXPECT_EQ(150, tl.get());
1079//
1080//   // Thread 1
1081//   EXPECT_EQ(100, tl.get());  // In thread 1, tl has the original value.
1082//   tl.set(200);
1083//   EXPECT_EQ(200, tl.get());
1084//
1085// The template type argument T must have a public copy constructor.
1086// In addition, the default ThreadLocal constructor requires T to have
1087// a public default constructor.
1088//
1089// An object managed for a thread by a ThreadLocal instance is deleted
1090// when the thread exits.  Or, if the ThreadLocal instance dies in
1091// that thread, when the ThreadLocal dies.  It's the user's
1092// responsibility to ensure that all other threads using a ThreadLocal
1093// have exited when it dies, or the per-thread objects for those
1094// threads will not be deleted.
1095//
1096// Google Test only uses global ThreadLocal objects.  That means they
1097// will die after main() has returned.  Therefore, no per-thread
1098// object managed by Google Test will be leaked as long as all threads
1099// using Google Test have exited when main() returns.
1100template <typename T>
1101class ThreadLocal {
1102 public:
1103  ThreadLocal() : key_(CreateKey()),
1104                  default_() {}
1105  explicit ThreadLocal(const T& value) : key_(CreateKey()),
1106                                         default_(value) {}
1107
1108  ~ThreadLocal() {
1109    // Destroys the managed object for the current thread, if any.
1110    DeleteThreadLocalValue(pthread_getspecific(key_));
1111
1112    // Releases resources associated with the key.  This will *not*
1113    // delete managed objects for other threads.
1114    GTEST_CHECK_POSIX_SUCCESS_(pthread_key_delete(key_));
1115  }
1116
1117  T* pointer() { return GetOrCreateValue(); }
1118  const T* pointer() const { return GetOrCreateValue(); }
1119  const T& get() const { return *pointer(); }
1120  void set(const T& value) { *pointer() = value; }
1121
1122 private:
1123  // Holds a value of type T.
1124  class ValueHolder : public ThreadLocalValueHolderBase {
1125   public:
1126    explicit ValueHolder(const T& value) : value_(value) {}
1127
1128    T* pointer() { return &value_; }
1129
1130   private:
1131    T value_;
1132    GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolder);
1133  };
1134
1135  static pthread_key_t CreateKey() {
1136    pthread_key_t key;
1137    // When a thread exits, DeleteThreadLocalValue() will be called on
1138    // the object managed for that thread.
1139    GTEST_CHECK_POSIX_SUCCESS_(
1140        pthread_key_create(&key, &DeleteThreadLocalValue));
1141    return key;
1142  }
1143
1144  T* GetOrCreateValue() const {
1145    ThreadLocalValueHolderBase* const holder =
1146        static_cast<ThreadLocalValueHolderBase*>(pthread_getspecific(key_));
1147    if (holder != NULL) {
1148      return CheckedDowncastToActualType<ValueHolder>(holder)->pointer();
1149    }
1150
1151    ValueHolder* const new_holder = new ValueHolder(default_);
1152    ThreadLocalValueHolderBase* const holder_base = new_holder;
1153    GTEST_CHECK_POSIX_SUCCESS_(pthread_setspecific(key_, holder_base));
1154    return new_holder->pointer();
1155  }
1156
1157  // A key pthreads uses for looking up per-thread values.
1158  const pthread_key_t key_;
1159  const T default_;  // The default value for each thread.
1160
1161  GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocal);
1162};
1163
1164#define GTEST_IS_THREADSAFE 1
1165
1166#else  // GTEST_HAS_PTHREAD
1167
1168// A dummy implementation of synchronization primitives (mutex, lock,
1169// and thread-local variable).  Necessary for compiling Google Test where
1170// mutex is not supported - using Google Test in multiple threads is not
1171// supported on such platforms.
1172
1173class Mutex {
1174 public:
1175  Mutex() {}
1176  void AssertHeld() const {}
1177};
1178
1179#define GTEST_DECLARE_STATIC_MUTEX_(mutex) \
1180  extern ::testing::internal::Mutex mutex
1181
1182#define GTEST_DEFINE_STATIC_MUTEX_(mutex) ::testing::internal::Mutex mutex
1183
1184class GTestMutexLock {
1185 public:
1186  explicit GTestMutexLock(Mutex*) {}  // NOLINT
1187};
1188
1189typedef GTestMutexLock MutexLock;
1190
1191template <typename T>
1192class ThreadLocal {
1193 public:
1194  ThreadLocal() : value_() {}
1195  explicit ThreadLocal(const T& value) : value_(value) {}
1196  T* pointer() { return &value_; }
1197  const T* pointer() const { return &value_; }
1198  const T& get() const { return value_; }
1199  void set(const T& value) { value_ = value; }
1200 private:
1201  T value_;
1202};
1203
1204// The above synchronization primitives have dummy implementations.
1205// Therefore Google Test is not thread-safe.
1206#define GTEST_IS_THREADSAFE 0
1207
1208#endif  // GTEST_HAS_PTHREAD
1209
1210// Returns the number of threads running in the process, or 0 to indicate that
1211// we cannot detect it.
1212GTEST_API_ size_t GetThreadCount();
1213
1214// Passing non-POD classes through ellipsis (...) crashes the ARM
1215// compiler and generates a warning in Sun Studio.  The Nokia Symbian
1216// and the IBM XL C/C++ compiler try to instantiate a copy constructor
1217// for objects passed through ellipsis (...), failing for uncopyable
1218// objects.  We define this to ensure that only POD is passed through
1219// ellipsis on these systems.
1220#if defined(__SYMBIAN32__) || defined(__IBMCPP__) || defined(__SUNPRO_CC)
1221// We lose support for NULL detection where the compiler doesn't like
1222// passing non-POD classes through ellipsis (...).
1223#define GTEST_ELLIPSIS_NEEDS_POD_ 1
1224#else
1225#define GTEST_CAN_COMPARE_NULL 1
1226#endif
1227
1228// The Nokia Symbian and IBM XL C/C++ compilers cannot decide between
1229// const T& and const T* in a function template.  These compilers
1230// _can_ decide between class template specializations for T and T*,
1231// so a tr1::type_traits-like is_pointer works.
1232#if defined(__SYMBIAN32__) || defined(__IBMCPP__)
1233#define GTEST_NEEDS_IS_POINTER_ 1
1234#endif
1235
1236template <bool bool_value>
1237struct bool_constant {
1238  typedef bool_constant<bool_value> type;
1239  static const bool value = bool_value;
1240};
1241template <bool bool_value> const bool bool_constant<bool_value>::value;
1242
1243typedef bool_constant<false> false_type;
1244typedef bool_constant<true> true_type;
1245
1246template <typename T>
1247struct is_pointer : public false_type {};
1248
1249template <typename T>
1250struct is_pointer<T*> : public true_type {};
1251
1252#if GTEST_OS_WINDOWS
1253#define GTEST_PATH_SEP_ "\\"
1254#define GTEST_HAS_ALT_PATH_SEP_ 1
1255// The biggest signed integer type the compiler supports.
1256typedef __int64 BiggestInt;
1257#else
1258#define GTEST_PATH_SEP_ "/"
1259#define GTEST_HAS_ALT_PATH_SEP_ 0
1260typedef long long BiggestInt;  // NOLINT
1261#endif  // GTEST_OS_WINDOWS
1262
1263// The testing::internal::posix namespace holds wrappers for common
1264// POSIX functions.  These wrappers hide the differences between
1265// Windows/MSVC and POSIX systems.  Since some compilers define these
1266// standard functions as macros, the wrapper cannot have the same name
1267// as the wrapped function.
1268
1269namespace posix {
1270
1271// Functions with a different name on Windows.
1272
1273#if GTEST_OS_WINDOWS
1274
1275typedef struct _stat StatStruct;
1276
1277#ifdef __BORLANDC__
1278inline int IsATTY(int fd) { return isatty(fd); }
1279inline int StrCaseCmp(const char* s1, const char* s2) {
1280  return stricmp(s1, s2);
1281}
1282inline char* StrDup(const char* src) { return strdup(src); }
1283#else  // !__BORLANDC__
1284#if GTEST_OS_WINDOWS_MOBILE
1285inline int IsATTY(int /* fd */) { return 0; }
1286#else
1287inline int IsATTY(int fd) { return _isatty(fd); }
1288#endif  // GTEST_OS_WINDOWS_MOBILE
1289inline int StrCaseCmp(const char* s1, const char* s2) {
1290  return _stricmp(s1, s2);
1291}
1292inline char* StrDup(const char* src) { return _strdup(src); }
1293#endif  // __BORLANDC__
1294
1295#if GTEST_OS_WINDOWS_MOBILE
1296inline int FileNo(FILE* file) { return reinterpret_cast<int>(_fileno(file)); }
1297// Stat(), RmDir(), and IsDir() are not needed on Windows CE at this
1298// time and thus not defined there.
1299#else
1300inline int FileNo(FILE* file) { return _fileno(file); }
1301inline int Stat(const char* path, StatStruct* buf) { return _stat(path, buf); }
1302inline int RmDir(const char* dir) { return _rmdir(dir); }
1303inline bool IsDir(const StatStruct& st) {
1304  return (_S_IFDIR & st.st_mode) != 0;
1305}
1306#endif  // GTEST_OS_WINDOWS_MOBILE
1307
1308#else
1309
1310typedef struct stat StatStruct;
1311
1312inline int FileNo(FILE* file) { return fileno(file); }
1313inline int IsATTY(int fd) { return isatty(fd); }
1314inline int Stat(const char* path, StatStruct* buf) { return stat(path, buf); }
1315inline int StrCaseCmp(const char* s1, const char* s2) {
1316  return strcasecmp(s1, s2);
1317}
1318inline char* StrDup(const char* src) { return strdup(src); }
1319inline int RmDir(const char* dir) { return rmdir(dir); }
1320inline bool IsDir(const StatStruct& st) { return S_ISDIR(st.st_mode); }
1321
1322#endif  // GTEST_OS_WINDOWS
1323
1324// Functions deprecated by MSVC 8.0.
1325
1326#ifdef _MSC_VER
1327// Temporarily disable warning 4996 (deprecated function).
1328#pragma warning(push)
1329#pragma warning(disable:4996)
1330#endif
1331
1332inline const char* StrNCpy(char* dest, const char* src, size_t n) {
1333  return strncpy(dest, src, n);
1334}
1335
1336// ChDir(), FReopen(), FDOpen(), Read(), Write(), Close(), and
1337// StrError() aren't needed on Windows CE at this time and thus not
1338// defined there.
1339
1340#if !GTEST_OS_WINDOWS_MOBILE
1341inline int ChDir(const char* dir) { return chdir(dir); }
1342#endif
1343inline FILE* FOpen(const char* path, const char* mode) {
1344  return fopen(path, mode);
1345}
1346#if !GTEST_OS_WINDOWS_MOBILE
1347inline FILE *FReopen(const char* path, const char* mode, FILE* stream) {
1348  return freopen(path, mode, stream);
1349}
1350inline FILE* FDOpen(int fd, const char* mode) { return fdopen(fd, mode); }
1351#endif
1352inline int FClose(FILE* fp) { return fclose(fp); }
1353#if !GTEST_OS_WINDOWS_MOBILE
1354inline int Read(int fd, void* buf, unsigned int count) {
1355  return static_cast<int>(read(fd, buf, count));
1356}
1357inline int Write(int fd, const void* buf, unsigned int count) {
1358  return static_cast<int>(write(fd, buf, count));
1359}
1360inline int Close(int fd) { return close(fd); }
1361inline const char* StrError(int errnum) { return strerror(errnum); }
1362#endif
1363inline const char* GetEnv(const char* name) {
1364#if GTEST_OS_WINDOWS_MOBILE
1365  // We are on Windows CE, which has no environment variables.
1366  return NULL;
1367#elif defined(__BORLANDC__) || defined(__SunOS_5_8) || defined(__SunOS_5_9)
1368  // Environment variables which we programmatically clear will be set to the
1369  // empty string rather than unset (NULL).  Handle that case.
1370  const char* const env = getenv(name);
1371  return (env != NULL && env[0] != '\0') ? env : NULL;
1372#else
1373  return getenv(name);
1374#endif
1375}
1376
1377#ifdef _MSC_VER
1378#pragma warning(pop)  // Restores the warning state.
1379#endif
1380
1381#if GTEST_OS_WINDOWS_MOBILE
1382// Windows CE has no C library. The abort() function is used in
1383// several places in Google Test. This implementation provides a reasonable
1384// imitation of standard behaviour.
1385void Abort();
1386#else
1387inline void Abort() { abort(); }
1388#endif  // GTEST_OS_WINDOWS_MOBILE
1389
1390}  // namespace posix
1391
1392// The maximum number a BiggestInt can represent.  This definition
1393// works no matter BiggestInt is represented in one's complement or
1394// two's complement.
1395//
1396// We cannot rely on numeric_limits in STL, as __int64 and long long
1397// are not part of standard C++ and numeric_limits doesn't need to be
1398// defined for them.
1399const BiggestInt kMaxBiggestInt =
1400    ~(static_cast<BiggestInt>(1) << (8*sizeof(BiggestInt) - 1));
1401
1402// This template class serves as a compile-time function from size to
1403// type.  It maps a size in bytes to a primitive type with that
1404// size. e.g.
1405//
1406//   TypeWithSize<4>::UInt
1407//
1408// is typedef-ed to be unsigned int (unsigned integer made up of 4
1409// bytes).
1410//
1411// Such functionality should belong to STL, but I cannot find it
1412// there.
1413//
1414// Google Test uses this class in the implementation of floating-point
1415// comparison.
1416//
1417// For now it only handles UInt (unsigned int) as that's all Google Test
1418// needs.  Other types can be easily added in the future if need
1419// arises.
1420template <size_t size>
1421class TypeWithSize {
1422 public:
1423  // This prevents the user from using TypeWithSize<N> with incorrect
1424  // values of N.
1425  typedef void UInt;
1426};
1427
1428// The specialization for size 4.
1429template <>
1430class TypeWithSize<4> {
1431 public:
1432  // unsigned int has size 4 in both gcc and MSVC.
1433  //
1434  // As base/basictypes.h doesn't compile on Windows, we cannot use
1435  // uint32, uint64, and etc here.
1436  typedef int Int;
1437  typedef unsigned int UInt;
1438};
1439
1440// The specialization for size 8.
1441template <>
1442class TypeWithSize<8> {
1443 public:
1444#if GTEST_OS_WINDOWS
1445  typedef __int64 Int;
1446  typedef unsigned __int64 UInt;
1447#else
1448  typedef long long Int;  // NOLINT
1449  typedef unsigned long long UInt;  // NOLINT
1450#endif  // GTEST_OS_WINDOWS
1451};
1452
1453// Integer types of known sizes.
1454typedef TypeWithSize<4>::Int In

Large files files are truncated, but you can click here to view the full file