| 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 | // Low-level types and utilities for porting Google Test to various |
| 31 | // platforms. All macros ending with _ and symbols defined in an |
| 32 | // internal namespace are subject to change without notice. Code |
| 33 | // outside Google Test MUST NOT USE THEM DIRECTLY. Macros that don't |
| 34 | // end with _ are part of Google Test's public API and can be used by |
| 35 | // code outside Google Test. |
| 36 | // |
| 37 | // This file is fundamental to Google Test. All other Google Test source |
| 38 | // files are expected to #include this. Therefore, it cannot #include |
| 39 | // any other Google Test header. |
| 40 | |
| 41 | // GOOGLETEST_CM0001 DO NOT DELETE |
| 42 | |
| 43 | #ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ |
| 44 | #define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ |
| 45 | |
| 46 | // Environment-describing macros |
| 47 | // ----------------------------- |
| 48 | // |
| 49 | // Google Test can be used in many different environments. Macros in |
| 50 | // this section tell Google Test what kind of environment it is being |
| 51 | // used in, such that Google Test can provide environment-specific |
| 52 | // features and implementations. |
| 53 | // |
| 54 | // Google Test tries to automatically detect the properties of its |
| 55 | // environment, so users usually don't need to worry about these |
| 56 | // macros. However, the automatic detection is not perfect. |
| 57 | // Sometimes it's necessary for a user to define some of the following |
| 58 | // macros in the build script to override Google Test's decisions. |
| 59 | // |
| 60 | // If the user doesn't define a macro in the list, Google Test will |
| 61 | // provide a default definition. After this header is #included, all |
| 62 | // macros in this list will be defined to either 1 or 0. |
| 63 | // |
| 64 | // Notes to maintainers: |
| 65 | // - Each macro here is a user-tweakable knob; do not grow the list |
| 66 | // lightly. |
| 67 | // - Use #if to key off these macros. Don't use #ifdef or "#if |
| 68 | // defined(...)", which will not work as these macros are ALWAYS |
| 69 | // defined. |
| 70 | // |
| 71 | // GTEST_HAS_CLONE - Define it to 1/0 to indicate that clone(2) |
| 72 | // is/isn't available. |
| 73 | // GTEST_HAS_EXCEPTIONS - Define it to 1/0 to indicate that exceptions |
| 74 | // are enabled. |
| 75 | // GTEST_HAS_POSIX_RE - Define it to 1/0 to indicate that POSIX regular |
| 76 | // expressions are/aren't available. |
| 77 | // GTEST_HAS_PTHREAD - Define it to 1/0 to indicate that <pthread.h> |
| 78 | // is/isn't available. |
| 79 | // GTEST_HAS_RTTI - Define it to 1/0 to indicate that RTTI is/isn't |
| 80 | // enabled. |
| 81 | // GTEST_HAS_STD_WSTRING - Define it to 1/0 to indicate that |
| 82 | // std::wstring does/doesn't work (Google Test can |
| 83 | // be used where std::wstring is unavailable). |
| 84 | // GTEST_HAS_SEH - Define it to 1/0 to indicate whether the |
| 85 | // compiler supports Microsoft's "Structured |
| 86 | // Exception Handling". |
| 87 | // GTEST_HAS_STREAM_REDIRECTION |
| 88 | // - Define it to 1/0 to indicate whether the |
| 89 | // platform supports I/O stream redirection using |
| 90 | // dup() and dup2(). |
| 91 | // GTEST_LINKED_AS_SHARED_LIBRARY |
| 92 | // - Define to 1 when compiling tests that use |
| 93 | // Google Test as a shared library (known as |
| 94 | // DLL on Windows). |
| 95 | // GTEST_CREATE_SHARED_LIBRARY |
| 96 | // - Define to 1 when compiling Google Test itself |
| 97 | // as a shared library. |
| 98 | // GTEST_DEFAULT_DEATH_TEST_STYLE |
| 99 | // - The default value of --gtest_death_test_style. |
| 100 | // The legacy default has been "fast" in the open |
| 101 | // source version since 2008. The recommended value |
| 102 | // is "threadsafe", and can be set in |
| 103 | // custom/gtest-port.h. |
| 104 | |
| 105 | // Platform-indicating macros |
| 106 | // -------------------------- |
| 107 | // |
| 108 | // Macros indicating the platform on which Google Test is being used |
| 109 | // (a macro is defined to 1 if compiled on the given platform; |
| 110 | // otherwise UNDEFINED -- it's never defined to 0.). Google Test |
| 111 | // defines these macros automatically. Code outside Google Test MUST |
| 112 | // NOT define them. |
| 113 | // |
| 114 | // GTEST_OS_AIX - IBM AIX |
| 115 | // GTEST_OS_CYGWIN - Cygwin |
| 116 | // GTEST_OS_DRAGONFLY - DragonFlyBSD |
| 117 | // GTEST_OS_FREEBSD - FreeBSD |
| 118 | // GTEST_OS_FUCHSIA - Fuchsia |
| 119 | // GTEST_OS_GNU_KFREEBSD - GNU/kFreeBSD |
| 120 | // GTEST_OS_HAIKU - Haiku |
| 121 | // GTEST_OS_HPUX - HP-UX |
| 122 | // GTEST_OS_LINUX - Linux |
| 123 | // GTEST_OS_LINUX_ANDROID - Google Android |
| 124 | // GTEST_OS_MAC - Mac OS X |
| 125 | // GTEST_OS_IOS - iOS |
| 126 | // GTEST_OS_NACL - Google Native Client (NaCl) |
| 127 | // GTEST_OS_NETBSD - NetBSD |
| 128 | // GTEST_OS_OPENBSD - OpenBSD |
| 129 | // GTEST_OS_OS2 - OS/2 |
| 130 | // GTEST_OS_QNX - QNX |
| 131 | // GTEST_OS_SOLARIS - Sun Solaris |
| 132 | // GTEST_OS_WINDOWS - Windows (Desktop, MinGW, or Mobile) |
| 133 | // GTEST_OS_WINDOWS_DESKTOP - Windows Desktop |
| 134 | // GTEST_OS_WINDOWS_MINGW - MinGW |
| 135 | // GTEST_OS_WINDOWS_MOBILE - Windows Mobile |
| 136 | // GTEST_OS_WINDOWS_PHONE - Windows Phone |
| 137 | // GTEST_OS_WINDOWS_RT - Windows Store App/WinRT |
| 138 | // GTEST_OS_ZOS - z/OS |
| 139 | // |
| 140 | // Among the platforms, Cygwin, Linux, Mac OS X, and Windows have the |
| 141 | // most stable support. Since core members of the Google Test project |
| 142 | // don't have access to other platforms, support for them may be less |
| 143 | // stable. If you notice any problems on your platform, please notify |
| 144 | // googletestframework@googlegroups.com (patches for fixing them are |
| 145 | // even more welcome!). |
| 146 | // |
| 147 | // It is possible that none of the GTEST_OS_* macros are defined. |
| 148 | |
| 149 | // Feature-indicating macros |
| 150 | // ------------------------- |
| 151 | // |
| 152 | // Macros indicating which Google Test features are available (a macro |
| 153 | // is defined to 1 if the corresponding feature is supported; |
| 154 | // otherwise UNDEFINED -- it's never defined to 0.). Google Test |
| 155 | // defines these macros automatically. Code outside Google Test MUST |
| 156 | // NOT define them. |
| 157 | // |
| 158 | // These macros are public so that portable tests can be written. |
| 159 | // Such tests typically surround code using a feature with an #if |
| 160 | // which controls that code. For example: |
| 161 | // |
| 162 | // #if GTEST_HAS_DEATH_TEST |
| 163 | // EXPECT_DEATH(DoSomethingDeadly()); |
| 164 | // #endif |
| 165 | // |
| 166 | // GTEST_HAS_DEATH_TEST - death tests |
| 167 | // GTEST_HAS_TYPED_TEST - typed tests |
| 168 | // GTEST_HAS_TYPED_TEST_P - type-parameterized tests |
| 169 | // GTEST_IS_THREADSAFE - Google Test is thread-safe. |
| 170 | // GOOGLETEST_CM0007 DO NOT DELETE |
| 171 | // GTEST_USES_POSIX_RE - enhanced POSIX regex is used. Do not confuse with |
| 172 | // GTEST_HAS_POSIX_RE (see above) which users can |
| 173 | // define themselves. |
| 174 | // GTEST_USES_SIMPLE_RE - our own simple regex is used; |
| 175 | // the above RE\b(s) are mutually exclusive. |
| 176 | |
| 177 | // Misc public macros |
| 178 | // ------------------ |
| 179 | // |
| 180 | // GTEST_FLAG(flag_name) - references the variable corresponding to |
| 181 | // the given Google Test flag. |
| 182 | |
| 183 | // Internal utilities |
| 184 | // ------------------ |
| 185 | // |
| 186 | // The following macros and utilities are for Google Test's INTERNAL |
| 187 | // use only. Code outside Google Test MUST NOT USE THEM DIRECTLY. |
| 188 | // |
| 189 | // Macros for basic C++ coding: |
| 190 | // GTEST_AMBIGUOUS_ELSE_BLOCKER_ - for disabling a gcc warning. |
| 191 | // GTEST_ATTRIBUTE_UNUSED_ - declares that a class' instances or a |
| 192 | // variable don't have to be used. |
| 193 | // GTEST_DISALLOW_ASSIGN_ - disables operator=. |
| 194 | // GTEST_DISALLOW_COPY_AND_ASSIGN_ - disables copy ctor and operator=. |
| 195 | // GTEST_MUST_USE_RESULT_ - declares that a function's result must be used. |
| 196 | // GTEST_INTENTIONAL_CONST_COND_PUSH_ - start code section where MSVC C4127 is |
| 197 | // suppressed (constant conditional). |
| 198 | // GTEST_INTENTIONAL_CONST_COND_POP_ - finish code section where MSVC C4127 |
| 199 | // is suppressed. |
| 200 | // |
| 201 | // Synchronization: |
| 202 | // Mutex, MutexLock, ThreadLocal, GetThreadCount() |
| 203 | // - synchronization primitives. |
| 204 | // |
| 205 | // Regular expressions: |
| 206 | // RE - a simple regular expression class using the POSIX |
| 207 | // Extended Regular Expression syntax on UNIX-like platforms |
| 208 | // GOOGLETEST_CM0008 DO NOT DELETE |
| 209 | // or a reduced regular exception syntax on other |
| 210 | // platforms, including Windows. |
| 211 | // Logging: |
| 212 | // GTEST_LOG_() - logs messages at the specified severity level. |
| 213 | // LogToStderr() - directs all log messages to stderr. |
| 214 | // FlushInfoLog() - flushes informational log messages. |
| 215 | // |
| 216 | // Stdout and stderr capturing: |
| 217 | // CaptureStdout() - starts capturing stdout. |
| 218 | // GetCapturedStdout() - stops capturing stdout and returns the captured |
| 219 | // string. |
| 220 | // CaptureStderr() - starts capturing stderr. |
| 221 | // GetCapturedStderr() - stops capturing stderr and returns the captured |
| 222 | // string. |
| 223 | // |
| 224 | // Integer types: |
| 225 | // TypeWithSize - maps an integer to a int type. |
| 226 | // Int32, UInt32, Int64, UInt64, TimeInMillis |
| 227 | // - integers of known sizes. |
| 228 | // BiggestInt - the biggest signed integer type. |
| 229 | // |
| 230 | // Command-line utilities: |
| 231 | // GTEST_DECLARE_*() - declares a flag. |
| 232 | // GTEST_DEFINE_*() - defines a flag. |
| 233 | // GetInjectableArgvs() - returns the command line as a vector of strings. |
| 234 | // |
| 235 | // Environment variable utilities: |
| 236 | // GetEnv() - gets the value of an environment variable. |
| 237 | // BoolFromGTestEnv() - parses a bool environment variable. |
| 238 | // Int32FromGTestEnv() - parses an Int32 environment variable. |
| 239 | // StringFromGTestEnv() - parses a string environment variable. |
| 240 | // |
| 241 | // Deprecation warnings: |
| 242 | // GTEST_INTERNAL_DEPRECATED(message) - attribute marking a function as |
| 243 | // deprecated; calling a marked function |
| 244 | // should generate a compiler warning |
| 245 | |
| 246 | #include <ctype.h> // for isspace, etc |
| 247 | #include <stddef.h> // for ptrdiff_t |
| 248 | #include <stdio.h> |
| 249 | #include <stdlib.h> |
| 250 | #include <string.h> |
| 251 | #include <memory> |
| 252 | #include <type_traits> |
| 253 | |
| 254 | #ifndef _WIN32_WCE |
| 255 | # include <sys/types.h> |
| 256 | # include <sys/stat.h> |
| 257 | #endif // !_WIN32_WCE |
| 258 | |
| 259 | #if defined __APPLE__ |
| 260 | # include <AvailabilityMacros.h> |
| 261 | # include <TargetConditionals.h> |
| 262 | #endif |
| 263 | |
| 264 | #include <algorithm> // NOLINT |
| 265 | #include <iostream> // NOLINT |
| 266 | #include <sstream> // NOLINT |
| 267 | #include <string> // NOLINT |
| 268 | #include <tuple> |
| 269 | #include <utility> |
| 270 | #include <vector> // NOLINT |
| 271 | |
| 272 | #include "gtest/internal/gtest-port-arch.h" |
| 273 | #include "gtest/internal/custom/gtest-port.h" |
| 274 | |
| 275 | #if !defined(GTEST_DEV_EMAIL_) |
| 276 | # define GTEST_DEV_EMAIL_ "googletestframework@@googlegroups.com" |
| 277 | # define GTEST_FLAG_PREFIX_ "gtest_" |
| 278 | # define GTEST_FLAG_PREFIX_DASH_ "gtest-" |
| 279 | # define GTEST_FLAG_PREFIX_UPPER_ "GTEST_" |
| 280 | # define GTEST_NAME_ "Google Test" |
| 281 | # define GTEST_PROJECT_URL_ "https://github.com/google/googletest/" |
| 282 | #endif // !defined(GTEST_DEV_EMAIL_) |
| 283 | |
| 284 | #if !defined(GTEST_INIT_GOOGLE_TEST_NAME_) |
| 285 | # define GTEST_INIT_GOOGLE_TEST_NAME_ "testing::InitGoogleTest" |
| 286 | #endif // !defined(GTEST_INIT_GOOGLE_TEST_NAME_) |
| 287 | |
| 288 | // Determines the version of gcc that is used to compile this. |
| 289 | #ifdef __GNUC__ |
| 290 | // 40302 means version 4.3.2. |
| 291 | # define GTEST_GCC_VER_ \ |
| 292 | (__GNUC__*10000 + __GNUC_MINOR__*100 + __GNUC_PATCHLEVEL__) |
| 293 | #endif // __GNUC__ |
| 294 | |
| 295 | // Macros for disabling Microsoft Visual C++ warnings. |
| 296 | // |
| 297 | // GTEST_DISABLE_MSC_WARNINGS_PUSH_(4800 4385) |
| 298 | // /* code that triggers warnings C4800 and C4385 */ |
| 299 | // GTEST_DISABLE_MSC_WARNINGS_POP_() |
| 300 | #if defined(_MSC_VER) |
| 301 | # define GTEST_DISABLE_MSC_WARNINGS_PUSH_(warnings) \ |
| 302 | __pragma(warning(push)) \ |
| 303 | __pragma(warning(disable: warnings)) |
| 304 | # define GTEST_DISABLE_MSC_WARNINGS_POP_() \ |
| 305 | __pragma(warning(pop)) |
| 306 | #else |
| 307 | // Not all compilers are MSVC |
| 308 | # define GTEST_DISABLE_MSC_WARNINGS_PUSH_(warnings) |
| 309 | # define GTEST_DISABLE_MSC_WARNINGS_POP_() |
| 310 | #endif |
| 311 | |
| 312 | // Clang on Windows does not understand MSVC's pragma warning. |
| 313 | // We need clang-specific way to disable function deprecation warning. |
| 314 | #ifdef __clang__ |
| 315 | # define GTEST_DISABLE_MSC_DEPRECATED_PUSH_() \ |
| 316 | _Pragma("clang diagnostic push") \ |
| 317 | _Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"") \ |
| 318 | _Pragma("clang diagnostic ignored \"-Wdeprecated-implementations\"") |
| 319 | #define GTEST_DISABLE_MSC_DEPRECATED_POP_() \ |
| 320 | _Pragma("clang diagnostic pop") |
| 321 | #else |
| 322 | # define GTEST_DISABLE_MSC_DEPRECATED_PUSH_() \ |
| 323 | GTEST_DISABLE_MSC_WARNINGS_PUSH_(4996) |
| 324 | # define GTEST_DISABLE_MSC_DEPRECATED_POP_() \ |
| 325 | GTEST_DISABLE_MSC_WARNINGS_POP_() |
| 326 | #endif |
| 327 | |
| 328 | // Brings in definitions for functions used in the testing::internal::posix |
| 329 | // namespace (read, write, close, chdir, isatty, stat). We do not currently |
| 330 | // use them on Windows Mobile. |
| 331 | #if GTEST_OS_WINDOWS |
| 332 | # if !GTEST_OS_WINDOWS_MOBILE |
| 333 | # include <direct.h> |
| 334 | # include <io.h> |
| 335 | # endif |
| 336 | // In order to avoid having to include <windows.h>, use forward declaration |
| 337 | #if GTEST_OS_WINDOWS_MINGW && !defined(__MINGW64_VERSION_MAJOR) |
| 338 | // MinGW defined _CRITICAL_SECTION and _RTL_CRITICAL_SECTION as two |
| 339 | // separate (equivalent) structs, instead of using typedef |
| 340 | typedef struct _CRITICAL_SECTION GTEST_CRITICAL_SECTION; |
| 341 | #else |
| 342 | // Assume CRITICAL_SECTION is a typedef of _RTL_CRITICAL_SECTION. |
| 343 | // This assumption is verified by |
| 344 | // WindowsTypesTest.CRITICAL_SECTIONIs_RTL_CRITICAL_SECTION. |
| 345 | typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION; |
| 346 | #endif |
| 347 | #else |
| 348 | // This assumes that non-Windows OSes provide unistd.h. For OSes where this |
| 349 | // is not the case, we need to include headers that provide the functions |
| 350 | // mentioned above. |
| 351 | # include <unistd.h> |
| 352 | # include <strings.h> |
| 353 | #endif // GTEST_OS_WINDOWS |
| 354 | |
| 355 | #if GTEST_OS_LINUX_ANDROID |
| 356 | // Used to define __ANDROID_API__ matching the target NDK API level. |
| 357 | # include <android/api-level.h> // NOLINT |
| 358 | #endif |
| 359 | |
| 360 | // Defines this to true if and only if Google Test can use POSIX regular |
| 361 | // expressions. |
| 362 | #ifndef GTEST_HAS_POSIX_RE |
| 363 | # if GTEST_OS_LINUX_ANDROID |
| 364 | // On Android, <regex.h> is only available starting with Gingerbread. |
| 365 | # define GTEST_HAS_POSIX_RE (__ANDROID_API__ >= 9) |
| 366 | # else |
| 367 | # define GTEST_HAS_POSIX_RE (!GTEST_OS_WINDOWS) |
| 368 | # endif |
| 369 | #endif |
| 370 | |
| 371 | #if GTEST_USES_PCRE |
| 372 | // The appropriate headers have already been included. |
| 373 | |
| 374 | #elif GTEST_HAS_POSIX_RE |
| 375 | |
| 376 | // On some platforms, <regex.h> needs someone to define size_t, and |
| 377 | // won't compile otherwise. We can #include it here as we already |
| 378 | // included <stdlib.h>, which is guaranteed to define size_t through |
| 379 | // <stddef.h>. |
| 380 | # include <regex.h> // NOLINT |
| 381 | |
| 382 | # define GTEST_USES_POSIX_RE 1 |
| 383 | |
| 384 | #elif GTEST_OS_WINDOWS |
| 385 | |
| 386 | // <regex.h> is not available on Windows. Use our own simple regex |
| 387 | // implementation instead. |
| 388 | # define GTEST_USES_SIMPLE_RE 1 |
| 389 | |
| 390 | #else |
| 391 | |
| 392 | // <regex.h> may not be available on this platform. Use our own |
| 393 | // simple regex implementation instead. |
| 394 | # define GTEST_USES_SIMPLE_RE 1 |
| 395 | |
| 396 | #endif // GTEST_USES_PCRE |
| 397 | |
| 398 | #ifndef GTEST_HAS_EXCEPTIONS |
| 399 | // The user didn't tell us whether exceptions are enabled, so we need |
| 400 | // to figure it out. |
| 401 | # if defined(_MSC_VER) && defined(_CPPUNWIND) |
| 402 | // MSVC defines _CPPUNWIND to 1 if and only if exceptions are enabled. |
| 403 | # define GTEST_HAS_EXCEPTIONS 1 |
| 404 | # elif defined(__BORLANDC__) |
| 405 | // C++Builder's implementation of the STL uses the _HAS_EXCEPTIONS |
| 406 | // macro to enable exceptions, so we'll do the same. |
| 407 | // Assumes that exceptions are enabled by default. |
| 408 | # ifndef _HAS_EXCEPTIONS |
| 409 | # define _HAS_EXCEPTIONS 1 |
| 410 | # endif // _HAS_EXCEPTIONS |
| 411 | # define GTEST_HAS_EXCEPTIONS _HAS_EXCEPTIONS |
| 412 | # elif defined(__clang__) |
| 413 | // clang defines __EXCEPTIONS if and only if exceptions are enabled before clang |
| 414 | // 220714, but if and only if cleanups are enabled after that. In Obj-C++ files, |
| 415 | // there can be cleanups for ObjC exceptions which also need cleanups, even if |
| 416 | // C++ exceptions are disabled. clang has __has_feature(cxx_exceptions) which |
| 417 | // checks for C++ exceptions starting at clang r206352, but which checked for |
| 418 | // cleanups prior to that. To reliably check for C++ exception availability with |
| 419 | // clang, check for |
| 420 | // __EXCEPTIONS && __has_feature(cxx_exceptions). |
| 421 | # define GTEST_HAS_EXCEPTIONS (__EXCEPTIONS && __has_feature(cxx_exceptions)) |
| 422 | # elif defined(__GNUC__) && __EXCEPTIONS |
| 423 | // gcc defines __EXCEPTIONS to 1 if and only if exceptions are enabled. |
| 424 | # define GTEST_HAS_EXCEPTIONS 1 |
| 425 | # elif defined(__SUNPRO_CC) |
| 426 | // Sun Pro CC supports exceptions. However, there is no compile-time way of |
| 427 | // detecting whether they are enabled or not. Therefore, we assume that |
| 428 | // they are enabled unless the user tells us otherwise. |
| 429 | # define GTEST_HAS_EXCEPTIONS 1 |
| 430 | # elif defined(__IBMCPP__) && __EXCEPTIONS |
| 431 | // xlC defines __EXCEPTIONS to 1 if and only if exceptions are enabled. |
| 432 | # define GTEST_HAS_EXCEPTIONS 1 |
| 433 | # elif defined(__HP_aCC) |
| 434 | // Exception handling is in effect by default in HP aCC compiler. It has to |
| 435 | // be turned of by +noeh compiler option if desired. |
| 436 | # define GTEST_HAS_EXCEPTIONS 1 |
| 437 | # else |
| 438 | // For other compilers, we assume exceptions are disabled to be |
| 439 | // conservative. |
| 440 | # define GTEST_HAS_EXCEPTIONS 0 |
| 441 | # endif // defined(_MSC_VER) || defined(__BORLANDC__) |
| 442 | #endif // GTEST_HAS_EXCEPTIONS |
| 443 | |
| 444 | #if !defined(GTEST_HAS_STD_STRING) |
| 445 | // Even though we don't use this macro any longer, we keep it in case |
| 446 | // some clients still depend on it. |
| 447 | # define GTEST_HAS_STD_STRING 1 |
| 448 | #elif !GTEST_HAS_STD_STRING |
| 449 | // The user told us that ::std::string isn't available. |
| 450 | # error "::std::string isn't available." |
| 451 | #endif // !defined(GTEST_HAS_STD_STRING) |
| 452 | |
| 453 | #ifndef GTEST_HAS_STD_WSTRING |
| 454 | // The user didn't tell us whether ::std::wstring is available, so we need |
| 455 | // to figure it out. |
| 456 | // Cygwin 1.7 and below doesn't support ::std::wstring. |
| 457 | // Solaris' libc++ doesn't support it either. Android has |
| 458 | // no support for it at least as recent as Froyo (2.2). |
| 459 | #define GTEST_HAS_STD_WSTRING \ |
| 460 | (!(GTEST_OS_LINUX_ANDROID || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS || \ |
| 461 | GTEST_OS_HAIKU)) |
| 462 | |
| 463 | #endif // GTEST_HAS_STD_WSTRING |
| 464 | |
| 465 | // Determines whether RTTI is available. |
| 466 | #ifndef GTEST_HAS_RTTI |
| 467 | // The user didn't tell us whether RTTI is enabled, so we need to |
| 468 | // figure it out. |
| 469 | |
| 470 | # ifdef _MSC_VER |
| 471 | |
| 472 | #ifdef _CPPRTTI // MSVC defines this macro if and only if RTTI is enabled. |
| 473 | # define GTEST_HAS_RTTI 1 |
| 474 | # else |
| 475 | # define GTEST_HAS_RTTI 0 |
| 476 | # endif |
| 477 | |
| 478 | // Starting with version 4.3.2, gcc defines __GXX_RTTI if and only if RTTI is |
| 479 | // enabled. |
| 480 | # elif defined(__GNUC__) |
| 481 | |
| 482 | # ifdef __GXX_RTTI |
| 483 | // When building against STLport with the Android NDK and with |
| 484 | // -frtti -fno-exceptions, the build fails at link time with undefined |
| 485 | // references to __cxa_bad_typeid. Note sure if STL or toolchain bug, |
| 486 | // so disable RTTI when detected. |
| 487 | # if GTEST_OS_LINUX_ANDROID && defined(_STLPORT_MAJOR) && \ |
| 488 | !defined(__EXCEPTIONS) |
| 489 | # define GTEST_HAS_RTTI 0 |
| 490 | # else |
| 491 | # define GTEST_HAS_RTTI 1 |
| 492 | # endif // GTEST_OS_LINUX_ANDROID && __STLPORT_MAJOR && !__EXCEPTIONS |
| 493 | # else |
| 494 | # define GTEST_HAS_RTTI 0 |
| 495 | # endif // __GXX_RTTI |
| 496 | |
| 497 | // Clang defines __GXX_RTTI starting with version 3.0, but its manual recommends |
| 498 | // using has_feature instead. has_feature(cxx_rtti) is supported since 2.7, the |
| 499 | // first version with C++ support. |
| 500 | # elif defined(__clang__) |
| 501 | |
| 502 | # define GTEST_HAS_RTTI __has_feature(cxx_rtti) |
| 503 | |
| 504 | // Starting with version 9.0 IBM Visual Age defines __RTTI_ALL__ to 1 if |
| 505 | // both the typeid and dynamic_cast features are present. |
| 506 | # elif defined(__IBMCPP__) && (__IBMCPP__ >= 900) |
| 507 | |
| 508 | # ifdef __RTTI_ALL__ |
| 509 | # define GTEST_HAS_RTTI 1 |
| 510 | # else |
| 511 | # define GTEST_HAS_RTTI 0 |
| 512 | # endif |
| 513 | |
| 514 | # else |
| 515 | |
| 516 | // For all other compilers, we assume RTTI is enabled. |
| 517 | # define GTEST_HAS_RTTI 1 |
| 518 | |
| 519 | # endif // _MSC_VER |
| 520 | |
| 521 | #endif // GTEST_HAS_RTTI |
| 522 | |
| 523 | // It's this header's responsibility to #include <typeinfo> when RTTI |
| 524 | // is enabled. |
| 525 | #if GTEST_HAS_RTTI |
| 526 | # include <typeinfo> |
| 527 | #endif |
| 528 | |
| 529 | // Determines whether Google Test can use the pthreads library. |
| 530 | #ifndef GTEST_HAS_PTHREAD |
| 531 | // The user didn't tell us explicitly, so we make reasonable assumptions about |
| 532 | // which platforms have pthreads support. |
| 533 | // |
| 534 | // To disable threading support in Google Test, add -DGTEST_HAS_PTHREAD=0 |
| 535 | // to your compiler flags. |
| 536 | #define GTEST_HAS_PTHREAD \ |
| 537 | (GTEST_OS_LINUX || GTEST_OS_MAC || GTEST_OS_HPUX || GTEST_OS_QNX || \ |
| 538 | GTEST_OS_FREEBSD || GTEST_OS_NACL || GTEST_OS_NETBSD || GTEST_OS_FUCHSIA || \ |
| 539 | GTEST_OS_DRAGONFLY || GTEST_OS_GNU_KFREEBSD || GTEST_OS_OPENBSD || \ |
| 540 | GTEST_OS_HAIKU) |
| 541 | #endif // GTEST_HAS_PTHREAD |
| 542 | |
| 543 | #if GTEST_HAS_PTHREAD |
| 544 | // gtest-port.h guarantees to #include <pthread.h> when GTEST_HAS_PTHREAD is |
| 545 | // true. |
| 546 | # include <pthread.h> // NOLINT |
| 547 | |
| 548 | // For timespec and nanosleep, used below. |
| 549 | # include <time.h> // NOLINT |
| 550 | #endif |
| 551 | |
| 552 | // Determines whether clone(2) is supported. |
| 553 | // Usually it will only be available on Linux, excluding |
| 554 | // Linux on the Itanium architecture. |
| 555 | // Also see http://linux.die.net/man/2/clone. |
| 556 | #ifndef GTEST_HAS_CLONE |
| 557 | // The user didn't tell us, so we need to figure it out. |
| 558 | |
| 559 | # if GTEST_OS_LINUX && !defined(__ia64__) |
| 560 | # if GTEST_OS_LINUX_ANDROID |
| 561 | // On Android, clone() became available at different API levels for each 32-bit |
| 562 | // architecture. |
| 563 | # if defined(__LP64__) || \ |
| 564 | (defined(__arm__) && __ANDROID_API__ >= 9) || \ |
| 565 | (defined(__mips__) && __ANDROID_API__ >= 12) || \ |
| 566 | (defined(__i386__) && __ANDROID_API__ >= 17) |
| 567 | # define GTEST_HAS_CLONE 1 |
| 568 | # else |
| 569 | # define GTEST_HAS_CLONE 0 |
| 570 | # endif |
| 571 | # else |
| 572 | # define GTEST_HAS_CLONE 1 |
| 573 | # endif |
| 574 | # else |
| 575 | # define GTEST_HAS_CLONE 0 |
| 576 | # endif // GTEST_OS_LINUX && !defined(__ia64__) |
| 577 | |
| 578 | #endif // GTEST_HAS_CLONE |
| 579 | |
| 580 | // Determines whether to support stream redirection. This is used to test |
| 581 | // output correctness and to implement death tests. |
| 582 | #ifndef GTEST_HAS_STREAM_REDIRECTION |
| 583 | // By default, we assume that stream redirection is supported on all |
| 584 | // platforms except known mobile ones. |
| 585 | # if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE || GTEST_OS_WINDOWS_RT |
| 586 | # define GTEST_HAS_STREAM_REDIRECTION 0 |
| 587 | # else |
| 588 | # define GTEST_HAS_STREAM_REDIRECTION 1 |
| 589 | # endif // !GTEST_OS_WINDOWS_MOBILE |
| 590 | #endif // GTEST_HAS_STREAM_REDIRECTION |
| 591 | |
| 592 | // Determines whether to support death tests. |
| 593 | // pops up a dialog window that cannot be suppressed programmatically. |
| 594 | #if (GTEST_OS_LINUX || GTEST_OS_CYGWIN || GTEST_OS_SOLARIS || \ |
| 595 | (GTEST_OS_MAC && !GTEST_OS_IOS) || \ |
| 596 | (GTEST_OS_WINDOWS_DESKTOP && _MSC_VER) || GTEST_OS_WINDOWS_MINGW || \ |
| 597 | GTEST_OS_AIX || GTEST_OS_HPUX || GTEST_OS_OPENBSD || GTEST_OS_QNX || \ |
| 598 | GTEST_OS_FREEBSD || GTEST_OS_NETBSD || GTEST_OS_FUCHSIA || \ |
| 599 | GTEST_OS_DRAGONFLY || GTEST_OS_GNU_KFREEBSD || GTEST_OS_HAIKU) |
| 600 | # define GTEST_HAS_DEATH_TEST 1 |
| 601 | #endif |
| 602 | |
| 603 | // Determines whether to support type-driven tests. |
| 604 | |
| 605 | // Typed tests need <typeinfo> and variadic macros, which GCC, VC++ 8.0, |
| 606 | // Sun Pro CC, IBM Visual Age, and HP aCC support. |
| 607 | #if defined(__GNUC__) || defined(_MSC_VER) || defined(__SUNPRO_CC) || \ |
| 608 | defined(__IBMCPP__) || defined(__HP_aCC) |
| 609 | # define GTEST_HAS_TYPED_TEST 1 |
| 610 | # define GTEST_HAS_TYPED_TEST_P 1 |
| 611 | #endif |
| 612 | |
| 613 | // Determines whether the system compiler uses UTF-16 for encoding wide strings. |
| 614 | #define GTEST_WIDE_STRING_USES_UTF16_ \ |
| 615 | (GTEST_OS_WINDOWS || GTEST_OS_CYGWIN || GTEST_OS_AIX || GTEST_OS_OS2) |
| 616 | |
| 617 | // Determines whether test results can be streamed to a socket. |
| 618 | #if GTEST_OS_LINUX || GTEST_OS_GNU_KFREEBSD || GTEST_OS_DRAGONFLY || \ |
| 619 | GTEST_OS_FREEBSD || GTEST_OS_NETBSD || GTEST_OS_OPENBSD |
| 620 | # define GTEST_CAN_STREAM_RESULTS_ 1 |
| 621 | #endif |
| 622 | |
| 623 | // Defines some utility macros. |
| 624 | |
| 625 | // The GNU compiler emits a warning if nested "if" statements are followed by |
| 626 | // an "else" statement and braces are not used to explicitly disambiguate the |
| 627 | // "else" binding. This leads to problems with code like: |
| 628 | // |
| 629 | // if (gate) |
| 630 | // ASSERT_*(condition) << "Some message"; |
| 631 | // |
| 632 | // The "switch (0) case 0:" idiom is used to suppress this. |
| 633 | #ifdef __INTEL_COMPILER |
| 634 | # define GTEST_AMBIGUOUS_ELSE_BLOCKER_ |
| 635 | #else |
| 636 | # define GTEST_AMBIGUOUS_ELSE_BLOCKER_ switch (0) case 0: default: // NOLINT |
| 637 | #endif |
| 638 | |
| 639 | // Use this annotation at the end of a struct/class definition to |
| 640 | // prevent the compiler from optimizing away instances that are never |
| 641 | // used. This is useful when all interesting logic happens inside the |
| 642 | // c'tor and / or d'tor. Example: |
| 643 | // |
| 644 | // struct Foo { |
| 645 | // Foo() { ... } |
| 646 | // } GTEST_ATTRIBUTE_UNUSED_; |
| 647 | // |
| 648 | // Also use it after a variable or parameter declaration to tell the |
| 649 | // compiler the variable/parameter does not have to be used. |
| 650 | #if defined(__GNUC__) && !defined(COMPILER_ICC) |
| 651 | # define GTEST_ATTRIBUTE_UNUSED_ __attribute__ ((unused)) |
| 652 | #elif defined(__clang__) |
| 653 | # if __has_attribute(unused) |
| 654 | # define GTEST_ATTRIBUTE_UNUSED_ __attribute__ ((unused)) |
| 655 | # endif |
| 656 | #endif |
| 657 | #ifndef GTEST_ATTRIBUTE_UNUSED_ |
| 658 | # define GTEST_ATTRIBUTE_UNUSED_ |
| 659 | #endif |
| 660 | |
| 661 | // Use this annotation before a function that takes a printf format string. |
| 662 | #if (defined(__GNUC__) || defined(__clang__)) && !defined(COMPILER_ICC) |
| 663 | # if defined(__MINGW_PRINTF_FORMAT) |
| 664 | // MinGW has two different printf implementations. Ensure the format macro |
| 665 | // matches the selected implementation. See |
| 666 | // https://sourceforge.net/p/mingw-w64/wiki2/gnu%20printf/. |
| 667 | # define GTEST_ATTRIBUTE_PRINTF_(string_index, first_to_check) \ |
| 668 | __attribute__((__format__(__MINGW_PRINTF_FORMAT, string_index, \ |
| 669 | first_to_check))) |
| 670 | # else |
| 671 | # define GTEST_ATTRIBUTE_PRINTF_(string_index, first_to_check) \ |
| 672 | __attribute__((__format__(__printf__, string_index, first_to_check))) |
| 673 | # endif |
| 674 | #else |
| 675 | # define GTEST_ATTRIBUTE_PRINTF_(string_index, first_to_check) |
| 676 | #endif |
| 677 | |
| 678 | |
| 679 | // A macro to disallow operator= |
| 680 | // This should be used in the private: declarations for a class. |
| 681 | #define GTEST_DISALLOW_ASSIGN_(type) \ |
| 682 | void operator=(type const &) = delete |
| 683 | |
| 684 | // A macro to disallow copy constructor and operator= |
| 685 | // This should be used in the private: declarations for a class. |
| 686 | #define GTEST_DISALLOW_COPY_AND_ASSIGN_(type) \ |
| 687 | type(type const &) = delete; \ |
| 688 | GTEST_DISALLOW_ASSIGN_(type) |
| 689 | |
| 690 | // Tell the compiler to warn about unused return values for functions declared |
| 691 | // with this macro. The macro should be used on function declarations |
| 692 | // following the argument list: |
| 693 | // |
| 694 | // Sprocket* AllocateSprocket() GTEST_MUST_USE_RESULT_; |
| 695 | #if defined(__GNUC__) && !defined(COMPILER_ICC) |
| 696 | # define GTEST_MUST_USE_RESULT_ __attribute__ ((warn_unused_result)) |
| 697 | #else |
| 698 | # define GTEST_MUST_USE_RESULT_ |
| 699 | #endif // __GNUC__ && !COMPILER_ICC |
| 700 | |
| 701 | // MS C++ compiler emits warning when a conditional expression is compile time |
| 702 | // constant. In some contexts this warning is false positive and needs to be |
| 703 | // suppressed. Use the following two macros in such cases: |
| 704 | // |
| 705 | // GTEST_INTENTIONAL_CONST_COND_PUSH_() |
| 706 | // while (true) { |
| 707 | // GTEST_INTENTIONAL_CONST_COND_POP_() |
| 708 | // } |
| 709 | # define GTEST_INTENTIONAL_CONST_COND_PUSH_() \ |
| 710 | GTEST_DISABLE_MSC_WARNINGS_PUSH_(4127) |
| 711 | # define GTEST_INTENTIONAL_CONST_COND_POP_() \ |
| 712 | GTEST_DISABLE_MSC_WARNINGS_POP_() |
| 713 | |
| 714 | // Determine whether the compiler supports Microsoft's Structured Exception |
| 715 | // Handling. This is supported by several Windows compilers but generally |
| 716 | // does not exist on any other system. |
| 717 | #ifndef GTEST_HAS_SEH |
| 718 | // The user didn't tell us, so we need to figure it out. |
| 719 | |
| 720 | # if defined(_MSC_VER) || defined(__BORLANDC__) |
| 721 | // These two compilers are known to support SEH. |
| 722 | # define GTEST_HAS_SEH 1 |
| 723 | # else |
| 724 | // Assume no SEH. |
| 725 | # define GTEST_HAS_SEH 0 |
| 726 | # endif |
| 727 | |
| 728 | #endif // GTEST_HAS_SEH |
| 729 | |
| 730 | #ifndef GTEST_IS_THREADSAFE |
| 731 | |
| 732 | #define GTEST_IS_THREADSAFE \ |
| 733 | (GTEST_HAS_MUTEX_AND_THREAD_LOCAL_ || \ |
| 734 | (GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT) || \ |
| 735 | GTEST_HAS_PTHREAD) |
| 736 | |
| 737 | #endif // GTEST_IS_THREADSAFE |
| 738 | |
| 739 | // GTEST_API_ qualifies all symbols that must be exported. The definitions below |
| 740 | // are guarded by #ifndef to give embedders a chance to define GTEST_API_ in |
| 741 | // gtest/internal/custom/gtest-port.h |
| 742 | #ifndef GTEST_API_ |
| 743 | |
| 744 | #ifdef _MSC_VER |
| 745 | # if GTEST_LINKED_AS_SHARED_LIBRARY |
| 746 | # define GTEST_API_ __declspec(dllimport) |
| 747 | # elif GTEST_CREATE_SHARED_LIBRARY |
| 748 | # define GTEST_API_ __declspec(dllexport) |
| 749 | # endif |
| 750 | #elif __GNUC__ >= 4 || defined(__clang__) |
| 751 | # define GTEST_API_ __attribute__((visibility ("default"))) |
| 752 | #endif // _MSC_VER |
| 753 | |
| 754 | #endif // GTEST_API_ |
| 755 | |
| 756 | #ifndef GTEST_API_ |
| 757 | # define GTEST_API_ |
| 758 | #endif // GTEST_API_ |
| 759 | |
| 760 | #ifndef GTEST_DEFAULT_DEATH_TEST_STYLE |
| 761 | # define GTEST_DEFAULT_DEATH_TEST_STYLE "fast" |
| 762 | #endif // GTEST_DEFAULT_DEATH_TEST_STYLE |
| 763 | |
| 764 | #ifdef __GNUC__ |
| 765 | // Ask the compiler to never inline a given function. |
| 766 | # define GTEST_NO_INLINE_ __attribute__((noinline)) |
| 767 | #else |
| 768 | # define GTEST_NO_INLINE_ |
| 769 | #endif |
| 770 | |
| 771 | // _LIBCPP_VERSION is defined by the libc++ library from the LLVM project. |
| 772 | #if !defined(GTEST_HAS_CXXABI_H_) |
| 773 | # if defined(__GLIBCXX__) || (defined(_LIBCPP_VERSION) && !defined(_MSC_VER)) |
| 774 | # define GTEST_HAS_CXXABI_H_ 1 |
| 775 | # else |
| 776 | # define GTEST_HAS_CXXABI_H_ 0 |
| 777 | # endif |
| 778 | #endif |
| 779 | |
| 780 | // A function level attribute to disable checking for use of uninitialized |
| 781 | // memory when built with MemorySanitizer. |
| 782 | #if defined(__clang__) |
| 783 | # if __has_feature(memory_sanitizer) |
| 784 | # define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_ \ |
| 785 | __attribute__((no_sanitize_memory)) |
| 786 | # else |
| 787 | # define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_ |
| 788 | # endif // __has_feature(memory_sanitizer) |
| 789 | #else |
| 790 | # define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_ |
| 791 | #endif // __clang__ |
| 792 | |
| 793 | // A function level attribute to disable AddressSanitizer instrumentation. |
| 794 | #if defined(__clang__) |
| 795 | # if __has_feature(address_sanitizer) |
| 796 | # define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_ \ |
| 797 | __attribute__((no_sanitize_address)) |
| 798 | # else |
| 799 | # define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_ |
| 800 | # endif // __has_feature(address_sanitizer) |
| 801 | #else |
| 802 | # define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_ |
| 803 | #endif // __clang__ |
| 804 | |
| 805 | // A function level attribute to disable HWAddressSanitizer instrumentation. |
| 806 | #if defined(__clang__) |
| 807 | # if __has_feature(hwaddress_sanitizer) |
| 808 | # define GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_ \ |
| 809 | __attribute__((no_sanitize("hwaddress"))) |
| 810 | # else |
| 811 | # define GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_ |
| 812 | # endif // __has_feature(hwaddress_sanitizer) |
| 813 | #else |
| 814 | # define GTEST_ATTRIBUTE_NO_SANITIZE_HWADDRESS_ |
| 815 | #endif // __clang__ |
| 816 | |
| 817 | // A function level attribute to disable ThreadSanitizer instrumentation. |
| 818 | #if defined(__clang__) |
| 819 | # if __has_feature(thread_sanitizer) |
| 820 | # define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_ \ |
| 821 | __attribute__((no_sanitize_thread)) |
| 822 | # else |
| 823 | # define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_ |
| 824 | # endif // __has_feature(thread_sanitizer) |
| 825 | #else |
| 826 | # define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_ |
| 827 | #endif // __clang__ |
| 828 | |
| 829 | namespace testing { |
| 830 | |
| 831 | class Message; |
| 832 | |
| 833 | // Legacy imports for backwards compatibility. |
| 834 | // New code should use std:: names directly. |
| 835 | using std::get; |
| 836 | using std::make_tuple; |
| 837 | using std::tuple; |
| 838 | using std::tuple_element; |
| 839 | using std::tuple_size; |
| 840 | |
| 841 | namespace internal { |
| 842 | |
| 843 | // A secret type that Google Test users don't know about. It has no |
| 844 | // definition on purpose. Therefore it's impossible to create a |
| 845 | // Secret object, which is what we want. |
| 846 | class Secret; |
| 847 | |
| 848 | // The GTEST_COMPILE_ASSERT_ is a legacy macro used to verify that a compile |
| 849 | // time expression is true (in new code, use static_assert instead). For |
| 850 | // example, you could use it to verify the size of a static array: |
| 851 | // |
| 852 | // GTEST_COMPILE_ASSERT_(GTEST_ARRAY_SIZE_(names) == NUM_NAMES, |
| 853 | // names_incorrect_size); |
| 854 | // |
| 855 | // The second argument to the macro must be a valid C++ identifier. If the |
| 856 | // expression is false, compiler will issue an error containing this identifier. |
| 857 | #define GTEST_COMPILE_ASSERT_(expr, msg) static_assert(expr, #msg) |
| 858 | |
| 859 | // Evaluates to the number of elements in 'array'. |
| 860 | #define GTEST_ARRAY_SIZE_(array) (sizeof(array) / sizeof(array[0])) |
| 861 | |
| 862 | // A helper for suppressing warnings on constant condition. It just |
| 863 | // returns 'condition'. |
| 864 | GTEST_API_ bool IsTrue(bool condition); |
| 865 | |
| 866 | // Defines RE. |
| 867 | |
| 868 | #if GTEST_USES_PCRE |
| 869 | // if used, PCRE is injected by custom/gtest-port.h |
| 870 | #elif GTEST_USES_POSIX_RE || GTEST_USES_SIMPLE_RE |
| 871 | |
| 872 | // A simple C++ wrapper for <regex.h>. It uses the POSIX Extended |
| 873 | // Regular Expression syntax. |
| 874 | class GTEST_API_ RE { |
| 875 | public: |
| 876 | // A copy constructor is required by the Standard to initialize object |
| 877 | // references from r-values. |
| 878 | RE(const RE& other) { Init(other.pattern()); } |
| 879 | |
| 880 | // Constructs an RE from a string. |
| 881 | RE(const ::std::string& regex) { Init(regex.c_str()); } // NOLINT |
| 882 | |
| 883 | RE(const char* regex) { Init(regex); } // NOLINT |
| 884 | ~RE(); |
| 885 | |
| 886 | // Returns the string representation of the regex. |
| 887 | const char* pattern() const { return pattern_; } |
| 888 | |
| 889 | // FullMatch(str, re) returns true if and only if regular expression re |
| 890 | // matches the entire str. |
| 891 | // PartialMatch(str, re) returns true if and only if regular expression re |
| 892 | // matches a substring of str (including str itself). |
| 893 | static bool FullMatch(const ::std::string& str, const RE& re) { |
| 894 | return FullMatch(str.c_str(), re); |
| 895 | } |
| 896 | static bool PartialMatch(const ::std::string& str, const RE& re) { |
| 897 | return PartialMatch(str.c_str(), re); |
| 898 | } |
| 899 | |
| 900 | static bool FullMatch(const char* str, const RE& re); |
| 901 | static bool PartialMatch(const char* str, const RE& re); |
| 902 | |
| 903 | private: |
| 904 | void Init(const char* regex); |
| 905 | const char* pattern_; |
| 906 | bool is_valid_; |
| 907 | |
| 908 | # if GTEST_USES_POSIX_RE |
| 909 | |
| 910 | regex_t full_regex_; // For FullMatch(). |
| 911 | regex_t partial_regex_; // For PartialMatch(). |
| 912 | |
| 913 | # else // GTEST_USES_SIMPLE_RE |
| 914 | |
| 915 | const char* full_pattern_; // For FullMatch(); |
| 916 | |
| 917 | # endif |
| 918 | |
| 919 | GTEST_DISALLOW_ASSIGN_(RE); |
| 920 | }; |
| 921 | |
| 922 | #endif // GTEST_USES_PCRE |
| 923 | |
| 924 | // Formats a source file path and a line number as they would appear |
| 925 | // in an error message from the compiler used to compile this code. |
| 926 | GTEST_API_ ::std::string FormatFileLocation(const char* file, int line); |
| 927 | |
| 928 | // Formats a file location for compiler-independent XML output. |
| 929 | // Although this function is not platform dependent, we put it next to |
| 930 | // FormatFileLocation in order to contrast the two functions. |
| 931 | GTEST_API_ ::std::string FormatCompilerIndependentFileLocation(const char* file, |
| 932 | int line); |
| 933 | |
| 934 | // Defines logging utilities: |
| 935 | // GTEST_LOG_(severity) - logs messages at the specified severity level. The |
| 936 | // message itself is streamed into the macro. |
| 937 | // LogToStderr() - directs all log messages to stderr. |
| 938 | // FlushInfoLog() - flushes informational log messages. |
| 939 | |
| 940 | enum GTestLogSeverity { |
| 941 | GTEST_INFO, |
| 942 | GTEST_WARNING, |
| 943 | GTEST_ERROR, |
| 944 | GTEST_FATAL |
| 945 | }; |
| 946 | |
| 947 | // Formats log entry severity, provides a stream object for streaming the |
| 948 | // log message, and terminates the message with a newline when going out of |
| 949 | // scope. |
| 950 | class GTEST_API_ GTestLog { |
| 951 | public: |
| 952 | GTestLog(GTestLogSeverity severity, const char* file, int line); |
| 953 | |
| 954 | // Flushes the buffers and, if severity is GTEST_FATAL, aborts the program. |
| 955 | ~GTestLog(); |
| 956 | |
| 957 | ::std::ostream& GetStream() { return ::std::cerr; } |
| 958 | |
| 959 | private: |
| 960 | const GTestLogSeverity severity_; |
| 961 | |
| 962 | GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestLog); |
| 963 | }; |
| 964 | |
| 965 | #if !defined(GTEST_LOG_) |
| 966 | |
| 967 | # define GTEST_LOG_(severity) \ |
| 968 | ::testing::internal::GTestLog(::testing::internal::GTEST_##severity, \ |
| 969 | __FILE__, __LINE__).GetStream() |
| 970 | |
| 971 | inline void LogToStderr() {} |
| 972 | inline void FlushInfoLog() { fflush(nullptr); } |
| 973 | |
| 974 | #endif // !defined(GTEST_LOG_) |
| 975 | |
| 976 | #if !defined(GTEST_CHECK_) |
| 977 | // INTERNAL IMPLEMENTATION - DO NOT USE. |
| 978 | // |
| 979 | // GTEST_CHECK_ is an all-mode assert. It aborts the program if the condition |
| 980 | // is not satisfied. |
| 981 | // Synopsys: |
| 982 | // GTEST_CHECK_(boolean_condition); |
| 983 | // or |
| 984 | // GTEST_CHECK_(boolean_condition) << "Additional message"; |
| 985 | // |
| 986 | // This checks the condition and if the condition is not satisfied |
| 987 | // it prints message about the condition violation, including the |
| 988 | // condition itself, plus additional message streamed into it, if any, |
| 989 | // and then it aborts the program. It aborts the program irrespective of |
| 990 | // whether it is built in the debug mode or not. |
| 991 | # define GTEST_CHECK_(condition) \ |
| 992 | GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ |
| 993 | if (::testing::internal::IsTrue(condition)) \ |
| 994 | ; \ |
| 995 | else \ |
| 996 | GTEST_LOG_(FATAL) << "Condition " #condition " failed. " |
| 997 | #endif // !defined(GTEST_CHECK_) |
| 998 | |
| 999 | // An all-mode assert to verify that the given POSIX-style function |
| 1000 | // call returns 0 (indicating success). Known limitation: this |
| 1001 | // doesn't expand to a balanced 'if' statement, so enclose the macro |
| 1002 | // in {} if you need to use it as the only statement in an 'if' |
| 1003 | // branch. |
| 1004 | #define GTEST_CHECK_POSIX_SUCCESS_(posix_call) \ |
| 1005 | if (const int gtest_error = (posix_call)) \ |
| 1006 | GTEST_LOG_(FATAL) << #posix_call << "failed with error " \ |
| 1007 | << gtest_error |
| 1008 | |
| 1009 | // Transforms "T" into "const T&" according to standard reference collapsing |
| 1010 | // rules (this is only needed as a backport for C++98 compilers that do not |
| 1011 | // support reference collapsing). Specifically, it transforms: |
| 1012 | // |
| 1013 | // char ==> const char& |
| 1014 | // const char ==> const char& |
| 1015 | // char& ==> char& |
| 1016 | // const char& ==> const char& |
| 1017 | // |
| 1018 | // Note that the non-const reference will not have "const" added. This is |
| 1019 | // standard, and necessary so that "T" can always bind to "const T&". |
| 1020 | template <typename T> |
| 1021 | struct ConstRef { typedef const T& type; }; |
| 1022 | template <typename T> |
| 1023 | struct ConstRef<T&> { typedef T& type; }; |
| 1024 | |
| 1025 | // The argument T must depend on some template parameters. |
| 1026 | #define GTEST_REFERENCE_TO_CONST_(T) \ |
| 1027 | typename ::testing::internal::ConstRef<T>::type |
| 1028 | |
| 1029 | // INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE. |
| 1030 | // |
| 1031 | // Use ImplicitCast_ as a safe version of static_cast for upcasting in |
| 1032 | // the type hierarchy (e.g. casting a Foo* to a SuperclassOfFoo* or a |
| 1033 | // const Foo*). When you use ImplicitCast_, the compiler checks that |
| 1034 | // the cast is safe. Such explicit ImplicitCast_s are necessary in |
| 1035 | // surprisingly many situations where C++ demands an exact type match |
| 1036 | // instead of an argument type convertable to a target type. |
| 1037 | // |
| 1038 | // The syntax for using ImplicitCast_ is the same as for static_cast: |
| 1039 | // |
| 1040 | // ImplicitCast_<ToType>(expr) |
| 1041 | // |
| 1042 | // ImplicitCast_ would have been part of the C++ standard library, |
| 1043 | // but the proposal was submitted too late. It will probably make |
| 1044 | // its way into the language in the future. |
| 1045 | // |
| 1046 | // This relatively ugly name is intentional. It prevents clashes with |
| 1047 | // similar functions users may have (e.g., implicit_cast). The internal |
| 1048 | // namespace alone is not enough because the function can be found by ADL. |
| 1049 | template<typename To> |
| 1050 | inline To ImplicitCast_(To x) { return x; } |
| 1051 | |
| 1052 | // When you upcast (that is, cast a pointer from type Foo to type |
| 1053 | // SuperclassOfFoo), it's fine to use ImplicitCast_<>, since upcasts |
| 1054 | // always succeed. When you downcast (that is, cast a pointer from |
| 1055 | // type Foo to type SubclassOfFoo), static_cast<> isn't safe, because |
| 1056 | // how do you know the pointer is really of type SubclassOfFoo? It |
| 1057 | // could be a bare Foo, or of type DifferentSubclassOfFoo. Thus, |
| 1058 | // when you downcast, you should use this macro. In debug mode, we |
| 1059 | // use dynamic_cast<> to double-check the downcast is legal (we die |
| 1060 | // if it's not). In normal mode, we do the efficient static_cast<> |
| 1061 | // instead. Thus, it's important to test in debug mode to make sure |
| 1062 | // the cast is legal! |
| 1063 | // This is the only place in the code we should use dynamic_cast<>. |
| 1064 | // In particular, you SHOULDN'T be using dynamic_cast<> in order to |
| 1065 | // do RTTI (eg code like this: |
| 1066 | // if (dynamic_cast<Subclass1>(foo)) HandleASubclass1Object(foo); |
| 1067 | // if (dynamic_cast<Subclass2>(foo)) HandleASubclass2Object(foo); |
| 1068 | // You should design the code some other way not to need this. |
| 1069 | // |
| 1070 | // This relatively ugly name is intentional. It prevents clashes with |
| 1071 | // similar functions users may have (e.g., down_cast). The internal |
| 1072 | // namespace alone is not enough because the function can be found by ADL. |
| 1073 | template<typename To, typename From> // use like this: DownCast_<T*>(foo); |
| 1074 | inline To DownCast_(From* f) { // so we only accept pointers |
| 1075 | // Ensures that To is a sub-type of From *. This test is here only |
| 1076 | // for compile-time type checking, and has no overhead in an |
| 1077 | // optimized build at run-time, as it will be optimized away |
| 1078 | // completely. |
| 1079 | GTEST_INTENTIONAL_CONST_COND_PUSH_() |
| 1080 | if (false) { |
| 1081 | GTEST_INTENTIONAL_CONST_COND_POP_() |
| 1082 | const To to = nullptr; |
| 1083 | ::testing::internal::ImplicitCast_<From*>(to); |
| 1084 | } |
| 1085 | |
| 1086 | #if GTEST_HAS_RTTI |
| 1087 | // RTTI: debug mode only! |
| 1088 | GTEST_CHECK_(f == nullptr || dynamic_cast<To>(f) != nullptr); |
| 1089 | #endif |
| 1090 | return static_cast<To>(f); |
| 1091 | } |
| 1092 | |
| 1093 | // Downcasts the pointer of type Base to Derived. |
| 1094 | // Derived must be a subclass of Base. The parameter MUST |
| 1095 | // point to a class of type Derived, not any subclass of it. |
| 1096 | // When RTTI is available, the function performs a runtime |
| 1097 | // check to enforce this. |
| 1098 | template <class Derived, class Base> |
| 1099 | Derived* CheckedDowncastToActualType(Base* base) { |
| 1100 | #if GTEST_HAS_RTTI |
| 1101 | GTEST_CHECK_(typeid(*base) == typeid(Derived)); |
| 1102 | #endif |
| 1103 | |
| 1104 | #if GTEST_HAS_DOWNCAST_ |
| 1105 | return ::down_cast<Derived*>(base); |
| 1106 | #elif GTEST_HAS_RTTI |
| 1107 | return dynamic_cast<Derived*>(base); // NOLINT |
| 1108 | #else |
| 1109 | return static_cast<Derived*>(base); // Poor man's downcast. |
| 1110 | #endif |
| 1111 | } |
| 1112 | |
| 1113 | #if GTEST_HAS_STREAM_REDIRECTION |
| 1114 | |
| 1115 | // Defines the stderr capturer: |
| 1116 | // CaptureStdout - starts capturing stdout. |
| 1117 | // GetCapturedStdout - stops capturing stdout and returns the captured string. |
| 1118 | // CaptureStderr - starts capturing stderr. |
| 1119 | // GetCapturedStderr - stops capturing stderr and returns the captured string. |
| 1120 | // |
| 1121 | GTEST_API_ void CaptureStdout(); |
| 1122 | GTEST_API_ std::string GetCapturedStdout(); |
| 1123 | GTEST_API_ void CaptureStderr(); |
| 1124 | GTEST_API_ std::string GetCapturedStderr(); |
| 1125 | |
| 1126 | #endif // GTEST_HAS_STREAM_REDIRECTION |
| 1127 | // Returns the size (in bytes) of a file. |
| 1128 | GTEST_API_ size_t GetFileSize(FILE* file); |
| 1129 | |
| 1130 | // Reads the entire content of a file as a string. |
| 1131 | GTEST_API_ std::string ReadEntireFile(FILE* file); |
| 1132 | |
| 1133 | // All command line arguments. |
| 1134 | GTEST_API_ std::vector<std::string> GetArgvs(); |
| 1135 | |
| 1136 | #if GTEST_HAS_DEATH_TEST |
| 1137 | |
| 1138 | std::vector<std::string> GetInjectableArgvs(); |
| 1139 | // Deprecated: pass the args vector by value instead. |
| 1140 | void SetInjectableArgvs(const std::vector<std::string>* new_argvs); |
| 1141 | void SetInjectableArgvs(const std::vector<std::string>& new_argvs); |
| 1142 | void ClearInjectableArgvs(); |
| 1143 | |
| 1144 | #endif // GTEST_HAS_DEATH_TEST |
| 1145 | |
| 1146 | // Defines synchronization primitives. |
| 1147 | #if GTEST_IS_THREADSAFE |
| 1148 | # if GTEST_HAS_PTHREAD |
| 1149 | // Sleeps for (roughly) n milliseconds. This function is only for testing |
| 1150 | // Google Test's own constructs. Don't use it in user tests, either |
| 1151 | // directly or indirectly. |
| 1152 | inline void SleepMilliseconds(int n) { |
| 1153 | const timespec time = { |
| 1154 | 0, // 0 seconds. |
| 1155 | n * 1000L * 1000L, // And n ms. |
| 1156 | }; |
| 1157 | nanosleep(&time, nullptr); |
| 1158 | } |
| 1159 | # endif // GTEST_HAS_PTHREAD |
| 1160 | |
| 1161 | # if GTEST_HAS_NOTIFICATION_ |
| 1162 | // Notification has already been imported into the namespace. |
| 1163 | // Nothing to do here. |
| 1164 | |
| 1165 | # elif GTEST_HAS_PTHREAD |
| 1166 | // Allows a controller thread to pause execution of newly created |
| 1167 | // threads until notified. Instances of this class must be created |
| 1168 | // and destroyed in the controller thread. |
| 1169 | // |
| 1170 | // This class is only for testing Google Test's own constructs. Do not |
| 1171 | // use it in user tests, either directly or indirectly. |
| 1172 | class Notification { |
| 1173 | public: |
| 1174 | Notification() : notified_(false) { |
| 1175 | GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_init(&mutex_, nullptr)); |
| 1176 | } |
| 1177 | ~Notification() { |
| 1178 | pthread_mutex_destroy(&mutex_); |
| 1179 | } |
| 1180 | |
| 1181 | // Notifies all threads created with this notification to start. Must |
| 1182 | // be called from the controller thread. |
| 1183 | void Notify() { |
| 1184 | pthread_mutex_lock(&mutex_); |
| 1185 | notified_ = true; |
| 1186 | pthread_mutex_unlock(&mutex_); |
| 1187 | } |
| 1188 | |
| 1189 | // Blocks until the controller thread notifies. Must be called from a test |
| 1190 | // thread. |
| 1191 | void WaitForNotification() { |
| 1192 | for (;;) { |
| 1193 | pthread_mutex_lock(&mutex_); |
| 1194 | const bool notified = notified_; |
| 1195 | pthread_mutex_unlock(&mutex_); |
| 1196 | if (notified) |
| 1197 | break; |
| 1198 | SleepMilliseconds(10); |
| 1199 | } |
| 1200 | } |
| 1201 | |
| 1202 | private: |
| 1203 | pthread_mutex_t mutex_; |
| 1204 | bool notified_; |
| 1205 | |
| 1206 | GTEST_DISALLOW_COPY_AND_ASSIGN_(Notification); |
| 1207 | }; |
| 1208 | |
| 1209 | # elif GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT |
| 1210 | |
| 1211 | GTEST_API_ void SleepMilliseconds(int n); |
| 1212 | |
| 1213 | // Provides leak-safe Windows kernel handle ownership. |
| 1214 | // Used in death tests and in threading support. |
| 1215 | class GTEST_API_ AutoHandle { |
| 1216 | public: |
| 1217 | // Assume that Win32 HANDLE type is equivalent to void*. Doing so allows us to |
| 1218 | // avoid including <windows.h> in this header file. Including <windows.h> is |
| 1219 | // undesirable because it defines a lot of symbols and macros that tend to |
| 1220 | // conflict with client code. This assumption is verified by |
| 1221 | // WindowsTypesTest.HANDLEIsVoidStar. |
| 1222 | typedef void* Handle; |
| 1223 | AutoHandle(); |
| 1224 | explicit AutoHandle(Handle handle); |
| 1225 | |
| 1226 | ~AutoHandle(); |
| 1227 | |
| 1228 | Handle Get() const; |
| 1229 | void Reset(); |
| 1230 | void Reset(Handle handle); |
| 1231 | |
| 1232 | private: |
| 1233 | // Returns true if and only if the handle is a valid handle object that can be |
| 1234 | // closed. |
| 1235 | bool IsCloseable() const; |
| 1236 | |
| 1237 | Handle handle_; |
| 1238 | |
| 1239 | GTEST_DISALLOW_COPY_AND_ASSIGN_(AutoHandle); |
| 1240 | }; |
| 1241 | |
| 1242 | // Allows a controller thread to pause execution of newly created |
| 1243 | // threads until notified. Instances of this class must be created |
| 1244 | // and destroyed in the controller thread. |
| 1245 | // |
| 1246 | // This class is only for testing Google Test's own constructs. Do not |
| 1247 | // use it in user tests, either directly or indirectly. |
| 1248 | class GTEST_API_ Notification { |
| 1249 | public: |
| 1250 | Notification(); |
| 1251 | void Notify(); |
| 1252 | void WaitForNotification(); |
| 1253 | |
| 1254 | private: |
| 1255 | AutoHandle event_; |
| 1256 | |
| 1257 | GTEST_DISALLOW_COPY_AND_ASSIGN_(Notification); |
| 1258 | }; |
| 1259 | # endif // GTEST_HAS_NOTIFICATION_ |
| 1260 | |
| 1261 | // On MinGW, we can have both GTEST_OS_WINDOWS and GTEST_HAS_PTHREAD |
| 1262 | // defined, but we don't want to use MinGW's pthreads implementation, which |
| 1263 | // has conformance problems with some versions of the POSIX standard. |
| 1264 | # if GTEST_HAS_PTHREAD && !GTEST_OS_WINDOWS_MINGW |
| 1265 | |
| 1266 | // As a C-function, ThreadFuncWithCLinkage cannot be templated itself. |
| 1267 | // Consequently, it cannot select a correct instantiation of ThreadWithParam |
| 1268 | // in order to call its Run(). Introducing ThreadWithParamBase as a |
| 1269 | // non-templated base class for ThreadWithParam allows us to bypass this |
| 1270 | // problem. |
| 1271 | class ThreadWithParamBase { |
| 1272 | public: |
| 1273 | virtual ~ThreadWithParamBase() {} |
| 1274 | virtual void Run() = 0; |
| 1275 | }; |
| 1276 | |
| 1277 | // pthread_create() accepts a pointer to a function type with the C linkage. |
| 1278 | // According to the Standard (7.5/1), function types with different linkages |
| 1279 | // are different even if they are otherwise identical. Some compilers (for |
| 1280 | // example, SunStudio) treat them as different types. Since class methods |
| 1281 | // cannot be defined with C-linkage we need to define a free C-function to |
| 1282 | // pass into pthread_create(). |
| 1283 | extern "C"inline void* ThreadFuncWithCLinkage(void* thread) { |
| 1284 | static_cast<ThreadWithParamBase*>(thread)->Run(); |
| 1285 | return nullptr; |
| 1286 | } |
| 1287 | |
| 1288 | // Helper class for testing Google Test's multi-threading constructs. |
| 1289 | // To use it, write: |
| 1290 | // |
| 1291 | // void ThreadFunc(int param) { /* Do things with param */ } |
| 1292 | // Notification thread_can_start; |
| 1293 | // ... |
| 1294 | // // The thread_can_start parameter is optional; you can supply NULL. |
| 1295 | // ThreadWithParam<int> thread(&ThreadFunc, 5, &thread_can_start); |
| 1296 | // thread_can_start.Notify(); |
| 1297 | // |
| 1298 | // These classes are only for testing Google Test's own constructs. Do |
| 1299 | // not use them in user tests, either directly or indirectly. |
| 1300 | template <typename T> |
| 1301 | class ThreadWithParam : public ThreadWithParamBase { |
| 1302 | public: |
| 1303 | typedef void UserThreadFunc(T); |
| 1304 | |
| 1305 | ThreadWithParam(UserThreadFunc* func, T param, Notification* thread_can_start) |
| 1306 | : func_(func), |
| 1307 | param_(param), |
| 1308 | thread_can_start_(thread_can_start), |
| 1309 | finished_(false) { |
| 1310 | ThreadWithParamBase* const base = this; |
| 1311 | // The thread can be created only after all fields except thread_ |
| 1312 | // have been initialized. |
| 1313 | GTEST_CHECK_POSIX_SUCCESS_( |
| 1314 | pthread_create(&thread_, nullptr, &ThreadFuncWithCLinkage, base)); |
| 1315 | } |
| 1316 | ~ThreadWithParam() override { Join(); } |
| 1317 | |
| 1318 | void Join() { |
| 1319 | if (!finished_) { |
| 1320 | GTEST_CHECK_POSIX_SUCCESS_(pthread_join(thread_, nullptr)); |
| 1321 | finished_ = true; |
| 1322 | } |
| 1323 | } |
| 1324 | |
| 1325 | void Run() override { |
| 1326 | if (thread_can_start_ != nullptr) thread_can_start_->WaitForNotification(); |
| 1327 | func_(param_); |
| 1328 | } |
| 1329 | |
| 1330 | private: |
| 1331 | UserThreadFunc* const func_; // User-supplied thread function. |
| 1332 | const T param_; // User-supplied parameter to the thread function. |
| 1333 | // When non-NULL, used to block execution until the controller thread |
| 1334 | // notifies. |
| 1335 | Notification* const thread_can_start_; |
| 1336 | bool finished_; // true if and only if we know that the thread function has |
| 1337 | // finished. |
| 1338 | pthread_t thread_; // The native thread object. |
| 1339 | |
| 1340 | GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadWithParam); |
| 1341 | }; |
| 1342 | # endif // !GTEST_OS_WINDOWS && GTEST_HAS_PTHREAD || |
| 1343 | // GTEST_HAS_MUTEX_AND_THREAD_LOCAL_ |
| 1344 | |
| 1345 | # if GTEST_HAS_MUTEX_AND_THREAD_LOCAL_ |
| 1346 | // Mutex and ThreadLocal have already been imported into the namespace. |
| 1347 | // Nothing to do here. |
| 1348 | |
| 1349 | # elif GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT |
| 1350 | |
| 1351 | // Mutex implements mutex on Windows platforms. It is used in conjunction |
| 1352 | // with class MutexLock: |
| 1353 | // |
| 1354 | // Mutex mutex; |
| 1355 | // ... |
| 1356 | // MutexLock lock(&mutex); // Acquires the mutex and releases it at the |
| 1357 | // // end of the current scope. |
| 1358 | // |
| 1359 | // A static Mutex *must* be defined or declared using one of the following |
| 1360 | // macros: |
| 1361 | // GTEST_DEFINE_STATIC_MUTEX_(g_some_mutex); |
| 1362 | // GTEST_DECLARE_STATIC_MUTEX_(g_some_mutex); |
| 1363 | // |
| 1364 | // (A non-static Mutex is defined/declared in the usual way). |
| 1365 | class GTEST_API_ Mutex { |
| 1366 | public: |
| 1367 | enum MutexType { kStatic = 0, kDynamic = 1 }; |
| 1368 | // We rely on kStaticMutex being 0 as it is to what the linker initializes |
| 1369 | // type_ in static mutexes. critical_section_ will be initialized lazily |
| 1370 | // in ThreadSafeLazyInit(). |
| 1371 | enum StaticConstructorSelector { kStaticMutex = 0 }; |
| 1372 | |
| 1373 | // This constructor intentionally does nothing. It relies on type_ being |
| 1374 | // statically initialized to 0 (effectively setting it to kStatic) and on |
| 1375 | // ThreadSafeLazyInit() to lazily initialize the rest of the members. |
| 1376 | explicit Mutex(StaticConstructorSelector /*dummy*/) {} |
| 1377 | |
| 1378 | Mutex(); |
| 1379 | ~Mutex(); |
| 1380 | |
| 1381 | void Lock(); |
| 1382 | |
| 1383 | void Unlock(); |
| 1384 | |
| 1385 | // Does nothing if the current thread holds the mutex. Otherwise, crashes |
| 1386 | // with high probability. |
| 1387 | void AssertHeld(); |
| 1388 | |
| 1389 | private: |
| 1390 | // Initializes owner_thread_id_ and critical_section_ in static mutexes. |
| 1391 | void ThreadSafeLazyInit(); |
| 1392 | |
| 1393 | // Per https://blogs.msdn.microsoft.com/oldnewthing/20040223-00/?p=40503, |
| 1394 | // we assume that 0 is an invalid value for thread IDs. |
| 1395 | unsigned int owner_thread_id_; |
| 1396 | |
| 1397 | // For static mutexes, we rely on these members being initialized to zeros |
| 1398 | // by the linker. |
| 1399 | MutexType type_; |
| 1400 | long critical_section_init_phase_; // NOLINT |
| 1401 | GTEST_CRITICAL_SECTION* critical_section_; |
| 1402 | |
| 1403 | GTEST_DISALLOW_COPY_AND_ASSIGN_(Mutex); |
| 1404 | }; |
| 1405 | |
| 1406 | # define GTEST_DECLARE_STATIC_MUTEX_(mutex) \ |
| 1407 | extern ::testing::internal::Mutex mutex |
| 1408 | |
| 1409 | # define GTEST_DEFINE_STATIC_MUTEX_(mutex) \ |
| 1410 | ::testing::internal::Mutex mutex(::testing::internal::Mutex::kStaticMutex) |
| 1411 | |
| 1412 | // We cannot name this class MutexLock because the ctor declaration would |
| 1413 | // conflict with a macro named MutexLock, which is defined on some |
| 1414 | // platforms. That macro is used as a defensive measure to prevent against |
| 1415 | // inadvertent misuses of MutexLock like "MutexLock(&mu)" rather than |
| 1416 | // "MutexLock l(&mu)". Hence the typedef trick below. |
| 1417 | class GTestMutexLock { |
| 1418 | public: |
| 1419 | explicit GTestMutexLock(Mutex* mutex) |
| 1420 | : mutex_(mutex) { mutex_->Lock(); } |
| 1421 | |
| 1422 | ~GTestMutexLock() { mutex_->Unlock(); } |
| 1423 | |
| 1424 | private: |
| 1425 | Mutex* const mutex_; |
| 1426 | |
| 1427 | GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestMutexLock); |
| 1428 | }; |
| 1429 | |
| 1430 | typedef GTestMutexLock MutexLock; |
| 1431 | |
| 1432 | // Base class for ValueHolder<T>. Allows a caller to hold and delete a value |
| 1433 | // without knowing its type. |
| 1434 | class ThreadLocalValueHolderBase { |
| 1435 | public: |
| 1436 | virtual ~ThreadLocalValueHolderBase() {} |
| 1437 | }; |
| 1438 | |
| 1439 | // Provides a way for a thread to send notifications to a ThreadLocal |
| 1440 | // regardless of its parameter type. |
| 1441 | class ThreadLocalBase { |
| 1442 | public: |
| 1443 | // Creates a new ValueHolder<T> object holding a default value passed to |
| 1444 | // this ThreadLocal<T>'s constructor and returns it. It is the caller's |
| 1445 | // responsibility not to call this when the ThreadLocal<T> instance already |
| 1446 | // has a value on the current thread. |
| 1447 | virtual ThreadLocalValueHolderBase* NewValueForCurrentThread() const = 0; |
| 1448 | |
| 1449 | protected: |
| 1450 | ThreadLocalBase() {} |
| 1451 | virtual ~ThreadLocalBase() {} |
| 1452 | |
| 1453 | private: |
| 1454 | GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocalBase); |
| 1455 | }; |
| 1456 | |
| 1457 | // Maps a thread to a set of ThreadLocals that have values instantiated on that |
| 1458 | // thread and notifies them when the thread exits. A ThreadLocal instance is |
| 1459 | // expected to persist until all threads it has values on have terminated. |
| 1460 | class GTEST_API_ ThreadLocalRegistry { |
| 1461 | public: |
| 1462 | // Registers thread_local_instance as having value on the current thread. |
| 1463 | // Returns a value that can be used to identify the thread from other threads. |
| 1464 | static ThreadLocalValueHolderBase* GetValueOnCurrentThread( |
| 1465 | const ThreadLocalBase* thread_local_instance); |
| 1466 | |
| 1467 | // Invoked when a ThreadLocal instance is destroyed. |
| 1468 | static void OnThreadLocalDestroyed( |
| 1469 | const ThreadLocalBase* thread_local_instance); |
| 1470 | }; |
| 1471 | |
| 1472 | class GTEST_API_ ThreadWithParamBase { |
| 1473 | public: |
| 1474 | void Join(); |
| 1475 | |
| 1476 | protected: |
| 1477 | class Runnable { |
| 1478 | public: |
| 1479 | virtual ~Runnable() {} |
| 1480 | virtual void Run() = 0; |
| 1481 | }; |
| 1482 | |
| 1483 | ThreadWithParamBase(Runnable *runnable, Notification* thread_can_start); |
| 1484 | virtual ~ThreadWithParamBase(); |
| 1485 | |
| 1486 | private: |
| 1487 | AutoHandle thread_; |
| 1488 | }; |
| 1489 | |
| 1490 | // Helper class for testing Google Test's multi-threading constructs. |
| 1491 | template <typename T> |
| 1492 | class ThreadWithParam : public ThreadWithParamBase { |
| 1493 | public: |
| 1494 | typedef void UserThreadFunc(T); |
| 1495 | |
| 1496 | ThreadWithParam(UserThreadFunc* func, T param, Notification* thread_can_start) |
| 1497 | : ThreadWithParamBase(new RunnableImpl(func, param), thread_can_start) { |
| 1498 | } |
| 1499 | virtual ~ThreadWithParam() {} |
| 1500 | |
| 1501 | private: |
| 1502 | class RunnableImpl : public Runnable { |
| 1503 | public: |
| 1504 | RunnableImpl(UserThreadFunc* func, T param) |
| 1505 | : func_(func), |
| 1506 | param_(param) { |
| 1507 | } |
| 1508 | virtual ~RunnableImpl() {} |
| 1509 | virtual void Run() { |
| 1510 | func_(param_); |
| 1511 | } |
| 1512 | |
| 1513 | private: |
| 1514 | UserThreadFunc* const func_; |
| 1515 | const T param_; |
| 1516 | |
| 1517 | GTEST_DISALLOW_COPY_AND_ASSIGN_(RunnableImpl); |
| 1518 | }; |
| 1519 | |
| 1520 | GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadWithParam); |
| 1521 | }; |
| 1522 | |
| 1523 | // Implements thread-local storage on Windows systems. |
| 1524 | // |
| 1525 | // // Thread 1 |
| 1526 | // ThreadLocal<int> tl(100); // 100 is the default value for each thread. |
| 1527 | // |
| 1528 | // // Thread 2 |
| 1529 | // tl.set(150); // Changes the value for thread 2 only. |
| 1530 | // EXPECT_EQ(150, tl.get()); |
| 1531 | // |
| 1532 | // // Thread 1 |
| 1533 | // EXPECT_EQ(100, tl.get()); // In thread 1, tl has the original value. |
| 1534 | // tl.set(200); |
| 1535 | // EXPECT_EQ(200, tl.get()); |
| 1536 | // |
| 1537 | // The template type argument T must have a public copy constructor. |
| 1538 | // In addition, the default ThreadLocal constructor requires T to have |
| 1539 | // a public default constructor. |
| 1540 | // |
| 1541 | // The users of a TheadLocal instance have to make sure that all but one |
| 1542 | // threads (including the main one) using that instance have exited before |
| 1543 | // destroying it. Otherwise, the per-thread objects managed for them by the |
| 1544 | // ThreadLocal instance are not guaranteed to be destroyed on all platforms. |
| 1545 | // |
| 1546 | // Google Test only uses global ThreadLocal objects. That means they |
| 1547 | // will die after main() has returned. Therefore, no per-thread |
| 1548 | // object managed by Google Test will be leaked as long as all threads |
| 1549 | // using Google Test have exited when main() returns. |
| 1550 | template <typename T> |
| 1551 | class ThreadLocal : public ThreadLocalBase { |
| 1552 | public: |
| 1553 | ThreadLocal() : default_factory_(new DefaultValueHolderFactory()) {} |
| 1554 | explicit ThreadLocal(const T& value) |
| 1555 | : default_factory_(new InstanceValueHolderFactory(value)) {} |
| 1556 | |
| 1557 | ~ThreadLocal() { ThreadLocalRegistry::OnThreadLocalDestroyed(this); } |
| 1558 | |
| 1559 | T* pointer() { return GetOrCreateValue(); } |
| 1560 | const T* pointer() const { return GetOrCreateValue(); } |
| 1561 | const T& get() const { return *pointer(); } |
| 1562 | void set(const T& value) { *pointer() = value; } |
| 1563 | |
| 1564 | private: |
| 1565 | // Holds a value of T. Can be deleted via its base class without the caller |
| 1566 | // knowing the type of T. |
| 1567 | class ValueHolder : public ThreadLocalValueHolderBase { |
| 1568 | public: |
| 1569 | ValueHolder() : value_() {} |
| 1570 | explicit ValueHolder(const T& value) : value_(value) {} |
| 1571 | |
| 1572 | T* pointer() { return &value_; } |
| 1573 | |
| 1574 | private: |
| 1575 | T value_; |
| 1576 | GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolder); |
| 1577 | }; |
| 1578 | |
| 1579 | |
| 1580 | T* GetOrCreateValue() const { |
| 1581 | return static_cast<ValueHolder*>( |
| 1582 | ThreadLocalRegistry::GetValueOnCurrentThread(this))->pointer(); |
| 1583 | } |
| 1584 | |
| 1585 | virtual ThreadLocalValueHolderBase* NewValueForCurrentThread() const { |
| 1586 | return default_factory_->MakeNewHolder(); |
| 1587 | } |
| 1588 | |
| 1589 | class ValueHolderFactory { |
| 1590 | public: |
| 1591 | ValueHolderFactory() {} |
| 1592 | virtual ~ValueHolderFactory() {} |
| 1593 | virtual ValueHolder* MakeNewHolder() const = 0; |
| 1594 | |
| 1595 | private: |
| 1596 | GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolderFactory); |
| 1597 | }; |
| 1598 | |
| 1599 | class DefaultValueHolderFactory : public ValueHolderFactory { |
| 1600 | public: |
| 1601 | DefaultValueHolderFactory() {} |
| 1602 | virtual ValueHolder* MakeNewHolder() const { return new ValueHolder(); } |
| 1603 | |
| 1604 | private: |
| 1605 | GTEST_DISALLOW_COPY_AND_ASSIGN_(DefaultValueHolderFactory); |
| 1606 | }; |
| 1607 | |
| 1608 | class InstanceValueHolderFactory : public ValueHolderFactory { |
| 1609 | public: |
| 1610 | explicit InstanceValueHolderFactory(const T& value) : value_(value) {} |
| 1611 | virtual ValueHolder* MakeNewHolder() const { |
| 1612 | return new ValueHolder(value_); |
| 1613 | } |
| 1614 | |
| 1615 | private: |
| 1616 | const T value_; // The value for each thread. |
| 1617 | |
| 1618 | GTEST_DISALLOW_COPY_AND_ASSIGN_(InstanceValueHolderFactory); |
| 1619 | }; |
| 1620 | |
| 1621 | std::unique_ptr<ValueHolderFactory> default_factory_; |
| 1622 | |
| 1623 | GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocal); |
| 1624 | }; |
| 1625 | |
| 1626 | # elif GTEST_HAS_PTHREAD |
| 1627 | |
| 1628 | // MutexBase and Mutex implement mutex on pthreads-based platforms. |
| 1629 | class MutexBase { |
| 1630 | public: |
| 1631 | // Acquires this mutex. |
| 1632 | void Lock() { |
| 1633 | GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_lock(&mutex_)); |
| 1634 | owner_ = pthread_self(); |
| 1635 | has_owner_ = true; |
| 1636 | } |
| 1637 | |
| 1638 | // Releases this mutex. |
| 1639 | void Unlock() { |
| 1640 | // Since the lock is being released the owner_ field should no longer be |
| 1641 | // considered valid. We don't protect writing to has_owner_ here, as it's |
| 1642 | // the caller's responsibility to ensure that the current thread holds the |
| 1643 | // mutex when this is called. |
| 1644 | has_owner_ = false; |
| 1645 | GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_unlock(&mutex_)); |
| 1646 | } |
| 1647 | |
| 1648 | // Does nothing if the current thread holds the mutex. Otherwise, crashes |
| 1649 | // with high probability. |
| 1650 | void AssertHeld() const { |
| 1651 | GTEST_CHECK_(has_owner_ && pthread_equal(owner_, pthread_self())) |
| 1652 | << "The current thread is not holding the mutex @"<< this; |
| 1653 | } |
| 1654 | |
| 1655 | // A static mutex may be used before main() is entered. It may even |
| 1656 | // be used before the dynamic initialization stage. Therefore we |
| 1657 | // must be able to initialize a static mutex object at link time. |
| 1658 | // This means MutexBase has to be a POD and its member variables |
| 1659 | // have to be public. |
| 1660 | public: |
| 1661 | pthread_mutex_t mutex_; // The underlying pthread mutex. |
| 1662 | // has_owner_ indicates whether the owner_ field below contains a valid thread |
| 1663 | // ID and is therefore safe to inspect (e.g., to use in pthread_equal()). All |
| 1664 | // accesses to the owner_ field should be protected by a check of this field. |
| 1665 | // An alternative might be to memset() owner_ to all zeros, but there's no |
| 1666 | // guarantee that a zero'd pthread_t is necessarily invalid or even different |
| 1667 | // from pthread_self(). |
| 1668 | bool has_owner_; |
| 1669 | pthread_t owner_; // The thread holding the mutex. |
| 1670 | }; |
| 1671 | |
| 1672 | // Forward-declares a static mutex. |
| 1673 | # define GTEST_DECLARE_STATIC_MUTEX_(mutex) \ |
| 1674 | extern ::testing::internal::MutexBase mutex |
| 1675 | |
| 1676 | // Defines and statically (i.e. at link time) initializes a static mutex. |
| 1677 | // The initialization list here does not explicitly initialize each field, |
| 1678 | // instead relying on default initialization for the unspecified fields. In |
| 1679 | // particular, the owner_ field (a pthread_t) is not explicitly initialized. |
| 1680 | // This allows initialization to work whether pthread_t is a scalar or struct. |
| 1681 | // The flag -Wmissing-field-initializers must not be specified for this to work. |
| 1682 | #define GTEST_DEFINE_STATIC_MUTEX_(mutex) \ |
| 1683 | ::testing::internal::MutexBase mutex = {PTHREAD_MUTEX_INITIALIZER, false, 0} |
| 1684 | |
| 1685 | // The Mutex class can only be used for mutexes created at runtime. It |
| 1686 | // shares its API with MutexBase otherwise. |
| 1687 | class Mutex : public MutexBase { |
| 1688 | public: |
| 1689 | Mutex() { |
| 1690 | GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_init(&mutex_, nullptr)); |
| 1691 | has_owner_ = false; |
| 1692 | } |
| 1693 | ~Mutex() { |
| 1694 | GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_destroy(&mutex_)); |
| 1695 | } |
| 1696 | |
| 1697 | private: |
| 1698 | GTEST_DISALLOW_COPY_AND_ASSIGN_(Mutex); |
| 1699 | }; |
| 1700 | |
| 1701 | // We cannot name this class MutexLock because the ctor declaration would |
| 1702 | // conflict with a macro named MutexLock, which is defined on some |
| 1703 | // platforms. That macro is used as a defensive measure to prevent against |
| 1704 | // inadvertent misuses of MutexLock like "MutexLock(&mu)" rather than |
| 1705 | // "MutexLock l(&mu)". Hence the typedef trick below. |
| 1706 | class GTestMutexLock { |
| 1707 | public: |
| 1708 | explicit GTestMutexLock(MutexBase* mutex) |
| 1709 | : mutex_(mutex) { mutex_->Lock(); } |
| 1710 | |
| 1711 | ~GTestMutexLock() { mutex_->Unlock(); } |
| 1712 | |
| 1713 | private: |
| 1714 | MutexBase* const mutex_; |
| 1715 | |
| 1716 | GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestMutexLock); |
| 1717 | }; |
| 1718 | |
| 1719 | typedef GTestMutexLock MutexLock; |
| 1720 | |
| 1721 | // Helpers for ThreadLocal. |
| 1722 | |
| 1723 | // pthread_key_create() requires DeleteThreadLocalValue() to have |
| 1724 | // C-linkage. Therefore it cannot be templatized to access |
| 1725 | // ThreadLocal<T>. Hence the need for class |
| 1726 | // ThreadLocalValueHolderBase. |
| 1727 | class ThreadLocalValueHolderBase { |
| 1728 | public: |
| 1729 | virtual ~ThreadLocalValueHolderBase() {} |
| 1730 | }; |
| 1731 | |
| 1732 | // Called by pthread to delete thread-local data stored by |
| 1733 | // pthread_setspecific(). |
| 1734 | extern "C"inline void DeleteThreadLocalValue(void* value_holder) { |
| 1735 | delete static_cast<ThreadLocalValueHolderBase*>(value_holder); |
| 1736 | } |
| 1737 | |
| 1738 | // Implements thread-local storage on pthreads-based systems. |
| 1739 | template <typename T> |
| 1740 | class GTEST_API_ ThreadLocal { |
| 1741 | public: |
| 1742 | ThreadLocal() |
| 1743 | : key_(CreateKey()), default_factory_(new DefaultValueHolderFactory()) {} |
| 1744 | explicit ThreadLocal(const T& value) |
| 1745 | : key_(CreateKey()), |
| 1746 | default_factory_(new InstanceValueHolderFactory(value)) {} |
| 1747 | |
| 1748 | ~ThreadLocal() { |
| 1749 | // Destroys the managed object for the current thread, if any. |
| 1750 | DeleteThreadLocalValue(pthread_getspecific(key_)); |
| 1751 | |
| 1752 | // Releases resources associated with the key. This will *not* |
| 1753 | // delete managed objects for other threads. |
| 1754 | GTEST_CHECK_POSIX_SUCCESS_(pthread_key_delete(key_)); |
| 1755 | } |
| 1756 | |
| 1757 | T* pointer() { return GetOrCreateValue(); } |
| 1758 | const T* pointer() const { return GetOrCreateValue(); } |
| 1759 | const T& get() const { return *pointer(); } |
| 1760 | void set(const T& value) { *pointer() = value; } |
| 1761 | |
| 1762 | private: |
| 1763 | // Holds a value of type T. |
| 1764 | class ValueHolder : public ThreadLocalValueHolderBase { |
| 1765 | public: |
| 1766 | ValueHolder() : value_() {} |
| 1767 | explicit ValueHolder(const T& value) : value_(value) {} |
| 1768 | |
| 1769 | T* pointer() { return &value_; } |
| 1770 | |
| 1771 | private: |
| 1772 | T value_; |
| 1773 | GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolder); |
| 1774 | }; |
| 1775 | |
| 1776 | static pthread_key_t CreateKey() { |
| 1777 | pthread_key_t key; |
| 1778 | // When a thread exits, DeleteThreadLocalValue() will be called on |
| 1779 | // the object managed for that thread. |
| 1780 | GTEST_CHECK_POSIX_SUCCESS_( |
| 1781 | pthread_key_create(&key, &DeleteThreadLocalValue)); |
| 1782 | return key; |
| 1783 | } |
| 1784 | |
| 1785 | T* GetOrCreateValue() const { |
| 1786 | ThreadLocalValueHolderBase* const holder = |
| 1787 | static_cast<ThreadLocalValueHolderBase*>(pthread_getspecific(key_)); |
| 1788 | if (holder != nullptr) { |
| 1789 | return CheckedDowncastToActualType<ValueHolder>(holder)->pointer(); |
| 1790 | } |
| 1791 | |
| 1792 | ValueHolder* const new_holder = default_factory_->MakeNewHolder(); |
| 1793 | ThreadLocalValueHolderBase* const holder_base = new_holder; |
| 1794 | GTEST_CHECK_POSIX_SUCCESS_(pthread_setspecific(key_, holder_base)); |
| 1795 | return new_holder->pointer(); |
| 1796 | } |
| 1797 | |
| 1798 | class ValueHolderFactory { |
| 1799 | public: |
| 1800 | ValueHolderFactory() {} |
| 1801 | virtual ~ValueHolderFactory() {} |
| 1802 | virtual ValueHolder* MakeNewHolder() const = 0; |
| 1803 | |
| 1804 | private: |
| 1805 | GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolderFactory); |
| 1806 | }; |
| 1807 | |
| 1808 | class DefaultValueHolderFactory : public ValueHolderFactory { |
| 1809 | public: |
| 1810 | DefaultValueHolderFactory() {} |
| 1811 | virtual ValueHolder* MakeNewHolder() const { return new ValueHolder(); } |
| 1812 | |
| 1813 | private: |
| 1814 | GTEST_DISALLOW_COPY_AND_ASSIGN_(DefaultValueHolderFactory); |
| 1815 | }; |
| 1816 | |
| 1817 | class InstanceValueHolderFactory : public ValueHolderFactory { |
| 1818 | public: |
| 1819 | explicit InstanceValueHolderFactory(const T& value) : value_(value) {} |
| 1820 | virtual ValueHolder* MakeNewHolder() const { |
| 1821 | return new ValueHolder(value_); |
| 1822 | } |
| 1823 | |
| 1824 | private: |
| 1825 | const T value_; // The value for each thread. |
| 1826 | |
| 1827 | GTEST_DISALLOW_COPY_AND_ASSIGN_(InstanceValueHolderFactory); |
| 1828 | }; |
| 1829 | |
| 1830 | // A key pthreads uses for looking up per-thread values. |
| 1831 | const pthread_key_t key_; |
| 1832 | std::unique_ptr<ValueHolderFactory> default_factory_; |
| 1833 | |
| 1834 | GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocal); |
| 1835 | }; |
| 1836 | |
| 1837 | # endif // GTEST_HAS_MUTEX_AND_THREAD_LOCAL_ |
| 1838 | |
| 1839 | #else // GTEST_IS_THREADSAFE |
| 1840 | |
| 1841 | // A dummy implementation of synchronization primitives (mutex, lock, |
| 1842 | // and thread-local variable). Necessary for compiling Google Test where |
| 1843 | // mutex is not supported - using Google Test in multiple threads is not |
| 1844 | // supported on such platforms. |
| 1845 | |
| 1846 | class Mutex { |
| 1847 | public: |
| 1848 | Mutex() {} |
| 1849 | void Lock() {} |
| 1850 | void Unlock() {} |
| 1851 | void AssertHeld() const {} |
| 1852 | }; |
| 1853 | |
| 1854 | # define GTEST_DECLARE_STATIC_MUTEX_(mutex) \ |
| 1855 | extern ::testing::internal::Mutex mutex |
| 1856 | |
| 1857 | # define GTEST_DEFINE_STATIC_MUTEX_(mutex) ::testing::internal::Mutex mutex |
| 1858 | |
| 1859 | // We cannot name this class MutexLock because the ctor declaration would |
| 1860 | // conflict with a macro named MutexLock, which is defined on some |
| 1861 | // platforms. That macro is used as a defensive measure to prevent against |
| 1862 | // inadvertent misuses of MutexLock like "MutexLock(&mu)" rather than |
| 1863 | // "MutexLock l(&mu)". Hence the typedef trick below. |
| 1864 | class GTestMutexLock { |
| 1865 | public: |
| 1866 | explicit GTestMutexLock(Mutex*) {} // NOLINT |
| 1867 | }; |
| 1868 | |
| 1869 | typedef GTestMutexLock MutexLock; |
| 1870 | |
| 1871 | template <typename T> |
| 1872 | class GTEST_API_ ThreadLocal { |
| 1873 | public: |
| 1874 | ThreadLocal() : value_() {} |
| 1875 | explicit ThreadLocal(const T& value) : value_(value) {} |
| 1876 | T* pointer() { return &value_; } |
| 1877 | const T* pointer() const { return &value_; } |
| 1878 | const T& get() const { return value_; } |
| 1879 | void set(const T& value) { value_ = value; } |
| 1880 | private: |
| 1881 | T value_; |
| 1882 | }; |
| 1883 | |
| 1884 | #endif // GTEST_IS_THREADSAFE |
| 1885 | |
| 1886 | // Returns the number of threads running in the process, or 0 to indicate that |
| 1887 | // we cannot detect it. |
| 1888 | GTEST_API_ size_t GetThreadCount(); |
| 1889 | |
| 1890 | template <bool B> |
| 1891 | using bool_constant = std::integral_constant<bool, B>; |
| 1892 | |
| 1893 | #if GTEST_OS_WINDOWS |
| 1894 | # define GTEST_PATH_SEP_ "\\" |
| 1895 | # define GTEST_HAS_ALT_PATH_SEP_ 1 |
| 1896 | // The biggest signed integer type the compiler supports. |
| 1897 | typedef __int64 BiggestInt; |
| 1898 | #else |
| 1899 | # define GTEST_PATH_SEP_ "/" |
| 1900 | # define GTEST_HAS_ALT_PATH_SEP_ 0 |
| 1901 | typedef long long BiggestInt; // NOLINT |
| 1902 | #endif // GTEST_OS_WINDOWS |
| 1903 | |
| 1904 | // Utilities for char. |
| 1905 | |
| 1906 | // isspace(int ch) and friends accept an unsigned char or EOF. char |
| 1907 | // may be signed, depending on the compiler (or compiler flags). |
| 1908 | // Therefore we need to cast a char to unsigned char before calling |
| 1909 | // isspace(), etc. |
| 1910 | |
| 1911 | inline bool IsAlpha(char ch) { |
| 1912 | return isalpha(static_cast<unsigned char>(ch)) != 0; |
| 1913 | } |
| 1914 | inline bool IsAlNum(char ch) { |
| 1915 | return isalnum(static_cast<unsigned char>(ch)) != 0; |
| 1916 | } |
| 1917 | inline bool IsDigit(char ch) { |
| 1918 | return isdigit(static_cast<unsigned char>(ch)) != 0; |
| 1919 | } |
| 1920 | inline bool IsLower(char ch) { |
| 1921 | return islower(static_cast<unsigned char>(ch)) != 0; |
| 1922 | } |
| 1923 | inline bool IsSpace(char ch) { |
| 1924 | return isspace(static_cast<unsigned char>(ch)) != 0; |
| 1925 | } |
| 1926 | inline bool IsUpper(char ch) { |
| 1927 | return isupper(static_cast<unsigned char>(ch)) != 0; |
| 1928 | } |
| 1929 | inline bool IsXDigit(char ch) { |
| 1930 | return isxdigit(static_cast<unsigned char>(ch)) != 0; |
| 1931 | } |
| 1932 | inline bool IsXDigit(wchar_t ch) { |
| 1933 | const unsigned char low_byte = static_cast<unsigned char>(ch); |
| 1934 | return ch == low_byte && isxdigit(low_byte) != 0; |
| 1935 | } |
| 1936 | |
| 1937 | inline char ToLower(char ch) { |
| 1938 | return static_cast<char>(tolower(static_cast<unsigned char>(ch))); |
| 1939 | } |
| 1940 | inline char ToUpper(char ch) { |
| 1941 | return static_cast<char>(toupper(static_cast<unsigned char>(ch))); |
| 1942 | } |
| 1943 | |
| 1944 | inline std::string StripTrailingSpaces(std::string str) { |
| 1945 | std::string::iterator it = str.end(); |
| 1946 | while (it != str.begin() && IsSpace(*--it)) |
| 1947 | it = str.erase(it); |
| 1948 | return str; |
| 1949 | } |
| 1950 | |
| 1951 | // The testing::internal::posix namespace holds wrappers for common |
| 1952 | // POSIX functions. These wrappers hide the differences between |
| 1953 | // Windows/MSVC and POSIX systems. Since some compilers define these |
| 1954 | // standard functions as macros, the wrapper cannot have the same name |
| 1955 | // as the wrapped function. |
| 1956 | |
| 1957 | namespace posix { |
| 1958 | |
| 1959 | // Functions with a different name on Windows. |
| 1960 | |
| 1961 | #if GTEST_OS_WINDOWS |
| 1962 | |
| 1963 | typedef struct _stat StatStruct; |
| 1964 | |
| 1965 | # ifdef __BORLANDC__ |
| 1966 | inline int IsATTY(int fd) { return isatty(fd); } |
| 1967 | inline int StrCaseCmp(const char* s1, const char* s2) { |
| 1968 | return stricmp(s1, s2); |
| 1969 | } |
| 1970 | inline char* StrDup(const char* src) { return strdup(src); } |
| 1971 | # else // !__BORLANDC__ |
| 1972 | # if GTEST_OS_WINDOWS_MOBILE |
| 1973 | inline int IsATTY(int /* fd */) { return 0; } |
| 1974 | # else |
| 1975 | inline int IsATTY(int fd) { return _isatty(fd); } |
| 1976 | # endif // GTEST_OS_WINDOWS_MOBILE |
| 1977 | inline int StrCaseCmp(const char* s1, const char* s2) { |
| 1978 | return _stricmp(s1, s2); |
| 1979 | } |
| 1980 | inline char* StrDup(const char* src) { return _strdup(src); } |
| 1981 | # endif // __BORLANDC__ |
| 1982 | |
| 1983 | # if GTEST_OS_WINDOWS_MOBILE |
| 1984 | inline int FileNo(FILE* file) { return reinterpret_cast<int>(_fileno(file)); } |
| 1985 | // Stat(), RmDir(), and IsDir() are not needed on Windows CE at this |
| 1986 | // time and thus not defined there. |
| 1987 | # else |
| 1988 | inline int FileNo(FILE* file) { return _fileno(file); } |
| 1989 | inline int Stat(const char* path, StatStruct* buf) { return _stat(path, buf); } |
| 1990 | inline int RmDir(const char* dir) { return _rmdir(dir); } |
| 1991 | inline bool IsDir(const StatStruct& st) { |
| 1992 | return (_S_IFDIR & st.st_mode) != 0; |
| 1993 | } |
| 1994 | # endif // GTEST_OS_WINDOWS_MOBILE |
| 1995 | |
| 1996 | #else |
| 1997 | |
| 1998 | typedef struct stat StatStruct; |
| 1999 | |
| 2000 | inline int FileNo(FILE* file) { return fileno(file); } |
| 2001 | inline int IsATTY(int fd) { return isatty(fd); } |
| 2002 | inline int Stat(const char* path, StatStruct* buf) { return stat(path, buf); } |
| 2003 | inline int StrCaseCmp(const char* s1, const char* s2) { |
| 2004 | return strcasecmp(s1, s2); |
| 2005 | } |
| 2006 | inline char* StrDup(const char* src) { return strdup(src); } |
| 2007 | inline int RmDir(const char* dir) { return rmdir(dir); } |
| 2008 | inline bool IsDir(const StatStruct& st) { return S_ISDIR(st.st_mode); } |
| 2009 | |
| 2010 | #endif // GTEST_OS_WINDOWS |
| 2011 | |
| 2012 | // Functions deprecated by MSVC 8.0. |
| 2013 | |
| 2014 | GTEST_DISABLE_MSC_DEPRECATED_PUSH_() |
| 2015 | |
| 2016 | inline const char* StrNCpy(char* dest, const char* src, size_t n) { |
| 2017 | return strncpy(dest, src, n); |
| 2018 | } |
| 2019 | |
| 2020 | // ChDir(), FReopen(), FDOpen(), Read(), Write(), Close(), and |
| 2021 | // StrError() aren't needed on Windows CE at this time and thus not |
| 2022 | // defined there. |
| 2023 | |
| 2024 | #if !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT |
| 2025 | inline int ChDir(const char* dir) { return chdir(dir); } |
| 2026 | #endif |
| 2027 | inline FILE* FOpen(const char* path, const char* mode) { |
| 2028 | return fopen(path, mode); |
| 2029 | } |
| 2030 | #if !GTEST_OS_WINDOWS_MOBILE |
| 2031 | inline FILE *FReopen(const char* path, const char* mode, FILE* stream) { |
| 2032 | return freopen(path, mode, stream); |
| 2033 | } |
| 2034 | inline FILE* FDOpen(int fd, const char* mode) { return fdopen(fd, mode); } |
| 2035 | #endif |
| 2036 | inline int FClose(FILE* fp) { return fclose(fp); } |
| 2037 | #if !GTEST_OS_WINDOWS_MOBILE |
| 2038 | inline int Read(int fd, void* buf, unsigned int count) { |
| 2039 | return static_cast<int>(read(fd, buf, count)); |
| 2040 | } |
| 2041 | inline int Write(int fd, const void* buf, unsigned int count) { |
| 2042 | return static_cast<int>(write(fd, buf, count)); |
| 2043 | } |
| 2044 | inline int Close(int fd) { return close(fd); } |
| 2045 | inline const char* StrError(int errnum) { return strerror(errnum); } |
| 2046 | #endif |
| 2047 | inline const char* GetEnv(const char* name) { |
| 2048 | #if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE || GTEST_OS_WINDOWS_RT |
| 2049 | // We are on Windows CE, which has no environment variables. |
| 2050 | static_cast<void>(name); // To prevent 'unused argument' warning. |
| 2051 | return nullptr; |
| 2052 | #elif defined(__BORLANDC__) || defined(__SunOS_5_8) || defined(__SunOS_5_9) |
| 2053 | // Environment variables which we programmatically clear will be set to the |
| 2054 | // empty string rather than unset (NULL). Handle that case. |
| 2055 | const char* const env = getenv(name); |
| 2056 | return (env != nullptr && env[0] != '\0') ? env : nullptr; |
| 2057 | #else |
| 2058 | return getenv(name); |
| 2059 | #endif |
| 2060 | } |
| 2061 | |
| 2062 | GTEST_DISABLE_MSC_DEPRECATED_POP_() |
| 2063 | |
| 2064 | #if GTEST_OS_WINDOWS_MOBILE |
| 2065 | // Windows CE has no C library. The abort() function is used in |
| 2066 | // several places in Google Test. This implementation provides a reasonable |
| 2067 | // imitation of standard behaviour. |
| 2068 | [[noreturn]] void Abort(); |
| 2069 | #else |
| 2070 | [[noreturn]] inline void Abort() { abort(); } |
| 2071 | #endif // GTEST_OS_WINDOWS_MOBILE |
| 2072 | |
| 2073 | } // namespace posix |
| 2074 | |
| 2075 | // MSVC "deprecates" snprintf and issues warnings wherever it is used. In |
| 2076 | // order to avoid these warnings, we need to use _snprintf or _snprintf_s on |
| 2077 | // MSVC-based platforms. We map the GTEST_SNPRINTF_ macro to the appropriate |
| 2078 | // function in order to achieve that. We use macro definition here because |
| 2079 | // snprintf is a variadic function. |
| 2080 | #if _MSC_VER && !GTEST_OS_WINDOWS_MOBILE |
| 2081 | // MSVC 2005 and above support variadic macros. |
| 2082 | # define GTEST_SNPRINTF_(buffer, size, format, ...) \ |
| 2083 | _snprintf_s(buffer, size, size, format, __VA_ARGS__) |
| 2084 | #elif defined(_MSC_VER) |
| 2085 | // Windows CE does not define _snprintf_s |
| 2086 | # define GTEST_SNPRINTF_ _snprintf |
| 2087 | #else |
| 2088 | # define GTEST_SNPRINTF_ snprintf |
| 2089 | #endif |
| 2090 | |
| 2091 | // The maximum number a BiggestInt can represent. This definition |
| 2092 | // works no matter BiggestInt is represented in one's complement or |
| 2093 | // two's complement. |
| 2094 | // |
| 2095 | // We cannot rely on numeric_limits in STL, as __int64 and long long |
| 2096 | // are not part of standard C++ and numeric_limits doesn't need to be |
| 2097 | // defined for them. |
| 2098 | const BiggestInt kMaxBiggestInt = |
| 2099 | ~(static_cast<BiggestInt>(1) << (8*sizeof(BiggestInt) - 1)); |
| 2100 | |
| 2101 | // This template class serves as a compile-time function from size to |
| 2102 | // type. It maps a size in bytes to a primitive type with that |
| 2103 | // size. e.g. |
| 2104 | // |
| 2105 | // TypeWithSize<4>::UInt |
| 2106 | // |
| 2107 | // is typedef-ed to be unsigned int (unsigned integer made up of 4 |
| 2108 | // bytes). |
| 2109 | // |
| 2110 | // Such functionality should belong to STL, but I cannot find it |
| 2111 | // there. |
| 2112 | // |
| 2113 | // Google Test uses this class in the implementation of floating-point |
| 2114 | // comparison. |
| 2115 | // |
| 2116 | // For now it only handles UInt (unsigned int) as that's all Google Test |
| 2117 | // needs. Other types can be easily added in the future if need |
| 2118 | // arises. |
| 2119 | template <size_t size> |
| 2120 | class TypeWithSize { |
| 2121 | public: |
| 2122 | // This prevents the user from using TypeWithSize<N> with incorrect |
| 2123 | // values of N. |
| 2124 | typedef void UInt; |
| 2125 | }; |
| 2126 | |
| 2127 | // The specialization for size 4. |
| 2128 | template <> |
| 2129 | class TypeWithSize<4> { |
| 2130 | public: |
| 2131 | // unsigned int has size 4 in both gcc and MSVC. |
| 2132 | // |
| 2133 | // As base/basictypes.h doesn't compile on Windows, we cannot use |
| 2134 | // uint32, uint64, and etc here. |
| 2135 | typedef int Int; |
| 2136 | typedef unsigned int UInt; |
| 2137 | }; |
| 2138 | |
| 2139 | // The specialization for size 8. |
| 2140 | template <> |
| 2141 | class TypeWithSize<8> { |
| 2142 | public: |
| 2143 | #if GTEST_OS_WINDOWS |
| 2144 | typedef __int64 Int; |
| 2145 | typedef unsigned __int64 UInt; |
| 2146 | #else |
| 2147 | typedef long long Int; // NOLINT |
| 2148 | typedef unsigned long long UInt; // NOLINT |
| 2149 | #endif // GTEST_OS_WINDOWS |
| 2150 | }; |
| 2151 | |
| 2152 | // Integer types of known sizes. |
| 2153 | typedef TypeWithSize<4>::Int Int32; |
| 2154 | typedef TypeWithSize<4>::UInt UInt32; |
| 2155 | typedef TypeWithSize<8>::Int Int64; |
| 2156 | typedef TypeWithSize<8>::UInt UInt64; |
| 2157 | typedef TypeWithSize<8>::Int TimeInMillis; // Represents time in milliseconds. |
| 2158 | |
| 2159 | // Utilities for command line flags and environment variables. |
| 2160 | |
| 2161 | // Macro for referencing flags. |
| 2162 | #if !defined(GTEST_FLAG) |
| 2163 | # define GTEST_FLAG(name) FLAGS_gtest_##name |
| 2164 | #endif // !defined(GTEST_FLAG) |
| 2165 | |
| 2166 | #if !defined(GTEST_USE_OWN_FLAGFILE_FLAG_) |
| 2167 | # define GTEST_USE_OWN_FLAGFILE_FLAG_ 1 |
| 2168 | #endif // !defined(GTEST_USE_OWN_FLAGFILE_FLAG_) |
| 2169 | |
| 2170 | #if !defined(GTEST_DECLARE_bool_) |
| 2171 | # define GTEST_FLAG_SAVER_ ::testing::internal::GTestFlagSaver |
| 2172 | |
| 2173 | // Macros for declaring flags. |
| 2174 | # define GTEST_DECLARE_bool_(name) GTEST_API_ extern bool GTEST_FLAG(name) |
| 2175 | # define GTEST_DECLARE_int32_(name) \ |
| 2176 | GTEST_API_ extern ::testing::internal::Int32 GTEST_FLAG(name) |
| 2177 | # define GTEST_DECLARE_string_(name) \ |
| 2178 | GTEST_API_ extern ::std::string GTEST_FLAG(name) |
| 2179 | |
| 2180 | // Macros for defining flags. |
| 2181 | # define GTEST_DEFINE_bool_(name, default_val, doc) \ |
| 2182 | GTEST_API_ bool GTEST_FLAG(name) = (default_val) |
| 2183 | # define GTEST_DEFINE_int32_(name, default_val, doc) \ |
| 2184 | GTEST_API_ ::testing::internal::Int32 GTEST_FLAG(name) = (default_val) |
| 2185 | # define GTEST_DEFINE_string_(name, default_val, doc) \ |
| 2186 | GTEST_API_ ::std::string GTEST_FLAG(name) = (default_val) |
| 2187 | |
| 2188 | #endif // !defined(GTEST_DECLARE_bool_) |
| 2189 | |
| 2190 | // Thread annotations |
| 2191 | #if !defined(GTEST_EXCLUSIVE_LOCK_REQUIRED_) |
| 2192 | # define GTEST_EXCLUSIVE_LOCK_REQUIRED_(locks) |
| 2193 | # define GTEST_LOCK_EXCLUDED_(locks) |
| 2194 | #endif // !defined(GTEST_EXCLUSIVE_LOCK_REQUIRED_) |
| 2195 | |
| 2196 | // Parses 'str' for a 32-bit signed integer. If successful, writes the result |
| 2197 | // to *value and returns true; otherwise leaves *value unchanged and returns |
| 2198 | // false. |
| 2199 | bool ParseInt32(const Message& src_text, const char* str, Int32* value); |
| 2200 | |
| 2201 | // Parses a bool/Int32/string from the environment variable |
| 2202 | // corresponding to the given Google Test flag. |
| 2203 | bool BoolFromGTestEnv(const char* flag, bool default_val); |
| 2204 | GTEST_API_ Int32 Int32FromGTestEnv(const char* flag, Int32 default_val); |
| 2205 | std::string OutputFlagAlsoCheckEnvVar(); |
| 2206 | const char* StringFromGTestEnv(const char* flag, const char* default_val); |
| 2207 | |
| 2208 | } // namespace internal |
| 2209 | } // namespace testing |
| 2210 | |
| 2211 | #if !defined(GTEST_INTERNAL_DEPRECATED) |
| 2212 | |
| 2213 | // Internal Macro to mark an API deprecated, for googletest usage only |
| 2214 | // Usage: class GTEST_INTERNAL_DEPRECATED(message) MyClass or |
| 2215 | // GTEST_INTERNAL_DEPRECATED(message) <return_type> myFunction(); Every usage of |
| 2216 | // a deprecated entity will trigger a warning when compiled with |
| 2217 | // `-Wdeprecated-declarations` option (clang, gcc, any __GNUC__ compiler). |
| 2218 | // For msvc /W3 option will need to be used |
| 2219 | // Note that for 'other' compilers this macro evaluates to nothing to prevent |
| 2220 | // compilations errors. |
| 2221 | #if defined(_MSC_VER) |
| 2222 | #define GTEST_INTERNAL_DEPRECATED(message) __declspec(deprecated(message)) |
| 2223 | #elif defined(__GNUC__) |
| 2224 | #define GTEST_INTERNAL_DEPRECATED(message) __attribute__((deprecated(message))) |
| 2225 | #else |
| 2226 | #define GTEST_INTERNAL_DEPRECATED(message) |
| 2227 | #endif |
| 2228 | |
| 2229 | #endif // !defined(GTEST_INTERNAL_DEPRECATED) |
| 2230 | |
| 2231 | #endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ |
| 2232 |
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