// Authors: wan@google.com (Zhanyong Wan)
//
// Low-level types and utilities for porting Google Test to various
-// platforms. They are subject to change without notice. DO NOT USE
-// THEM IN USER CODE.
+// platforms. All macros ending with _ and symbols defined in an
+// internal namespace are subject to change without notice. Code
+// outside Google Test MUST NOT USE THEM DIRECTLY. Macros that don't
+// end with _ are part of Google Test's public API and can be used by
+// code outside Google Test.
//
// This file is fundamental to Google Test. All other Google Test source
// files are expected to #include this. Therefore, it cannot #include
#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_
#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_
-// The user can define the following macros in the build script to
-// control Google Test's behavior. If the user doesn't define a macro
-// in this list, Google Test will define it.
+// Environment-describing macros
+// -----------------------------
+//
+// Google Test can be used in many different environments. Macros in
+// this section tell Google Test what kind of environment it is being
+// used in, such that Google Test can provide environment-specific
+// features and implementations.
+//
+// Google Test tries to automatically detect the properties of its
+// environment, so users usually don't need to worry about these
+// macros. However, the automatic detection is not perfect.
+// Sometimes it's necessary for a user to define some of the following
+// macros in the build script to override Google Test's decisions.
+//
+// If the user doesn't define a macro in the list, Google Test will
+// provide a default definition. After this header is #included, all
+// macros in this list will be defined to either 1 or 0.
+//
+// Notes to maintainers:
+// - Each macro here is a user-tweakable knob; do not grow the list
+// lightly.
+// - Use #if to key off these macros. Don't use #ifdef or "#if
+// defined(...)", which will not work as these macros are ALWAYS
+// defined.
//
// GTEST_HAS_CLONE - Define it to 1/0 to indicate that clone(2)
// is/isn't available.
// - Define to 1 when compiling Google Test itself
// as a shared library.
-// This header defines the following utilities:
+// Platform-indicating macros
+// --------------------------
+//
+// Macros indicating the platform on which Google Test is being used
+// (a macro is defined to 1 if compiled on the given platform;
+// otherwise UNDEFINED -- it's never defined to 0.). Google Test
+// defines these macros automatically. Code outside Google Test MUST
+// NOT define them.
//
-// Macros indicating the current platform (defined to 1 if compiled on
-// the given platform; otherwise undefined):
// GTEST_OS_AIX - IBM AIX
// GTEST_OS_CYGWIN - Cygwin
// GTEST_OS_HPUX - HP-UX
// GTEST_OS_WINDOWS_DESKTOP - Windows Desktop
// GTEST_OS_WINDOWS_MINGW - MinGW
// GTEST_OS_WINDOWS_MOBILE - Windows Mobile
+// GTEST_OS_WINDOWS_PHONE - Windows Phone
+// GTEST_OS_WINDOWS_RT - Windows Store App/WinRT
// GTEST_OS_ZOS - z/OS
//
// Among the platforms, Cygwin, Linux, Max OS X, and Windows have the
// googletestframework@googlegroups.com (patches for fixing them are
// even more welcome!).
//
-// Note that it is possible that none of the GTEST_OS_* macros are defined.
+// It is possible that none of the GTEST_OS_* macros are defined.
+
+// Feature-indicating macros
+// -------------------------
+//
+// Macros indicating which Google Test features are available (a macro
+// is defined to 1 if the corresponding feature is supported;
+// otherwise UNDEFINED -- it's never defined to 0.). Google Test
+// defines these macros automatically. Code outside Google Test MUST
+// NOT define them.
+//
+// These macros are public so that portable tests can be written.
+// Such tests typically surround code using a feature with an #if
+// which controls that code. For example:
+//
+// #if GTEST_HAS_DEATH_TEST
+// EXPECT_DEATH(DoSomethingDeadly());
+// #endif
//
-// Macros indicating available Google Test features (defined to 1 if
-// the corresponding feature is supported; otherwise undefined):
// GTEST_HAS_COMBINE - the Combine() function (for value-parameterized
// tests)
// GTEST_HAS_DEATH_TEST - death tests
// GTEST_HAS_PARAM_TEST - value-parameterized tests
// GTEST_HAS_TYPED_TEST - typed tests
// GTEST_HAS_TYPED_TEST_P - type-parameterized tests
+// GTEST_IS_THREADSAFE - Google Test is thread-safe.
// GTEST_USES_POSIX_RE - enhanced POSIX regex is used. Do not confuse with
// GTEST_HAS_POSIX_RE (see above) which users can
// define themselves.
// GTEST_USES_SIMPLE_RE - our own simple regex is used;
// the above two are mutually exclusive.
// GTEST_CAN_COMPARE_NULL - accepts untyped NULL in EXPECT_EQ().
+
+// Misc public macros
+// ------------------
+//
+// GTEST_FLAG(flag_name) - references the variable corresponding to
+// the given Google Test flag.
+
+// Internal utilities
+// ------------------
+//
+// The following macros and utilities are for Google Test's INTERNAL
+// use only. Code outside Google Test MUST NOT USE THEM DIRECTLY.
//
// Macros for basic C++ coding:
// GTEST_AMBIGUOUS_ELSE_BLOCKER_ - for disabling a gcc warning.
// GTEST_DISALLOW_ASSIGN_ - disables operator=.
// GTEST_DISALLOW_COPY_AND_ASSIGN_ - disables copy ctor and operator=.
// GTEST_MUST_USE_RESULT_ - declares that a function's result must be used.
+// GTEST_INTENTIONAL_CONST_COND_PUSH_ - start code section where MSVC C4127 is
+// suppressed (constant conditional).
+// GTEST_INTENTIONAL_CONST_COND_POP_ - finish code section where MSVC C4127
+// is suppressed.
+//
+// C++11 feature wrappers:
+//
+// GTEST_MOVE_ - portability wrapper for std::move.
//
// Synchronization:
// Mutex, MutexLock, ThreadLocal, GetThreadCount()
-// - synchronization primitives.
-// GTEST_IS_THREADSAFE - defined to 1 to indicate that the above
-// synchronization primitives have real implementations
-// and Google Test is thread-safe; or 0 otherwise.
+// - synchronization primitives.
//
// Template meta programming:
// is_pointer - as in TR1; needed on Symbian and IBM XL C/C++ only.
// BiggestInt - the biggest signed integer type.
//
// Command-line utilities:
-// GTEST_FLAG() - references a flag.
// GTEST_DECLARE_*() - declares a flag.
// GTEST_DEFINE_*() - defines a flag.
// GetInjectableArgvs() - returns the command line as a vector of strings.
# include <TargetConditionals.h>
#endif
+#include <algorithm> // NOLINT
#include <iostream> // NOLINT
#include <sstream> // NOLINT
#include <string> // NOLINT
+#include <utility>
#define GTEST_DEV_EMAIL_ "googletestframework@@googlegroups.com"
#define GTEST_FLAG_PREFIX_ "gtest_"
# define GTEST_OS_WINDOWS_MOBILE 1
# elif defined(__MINGW__) || defined(__MINGW32__)
# define GTEST_OS_WINDOWS_MINGW 1
+# elif defined(WINAPI_FAMILY)
+# include <winapifamily.h>
+# if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
+# define GTEST_OS_WINDOWS_DESKTOP 1
+# elif WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_PHONE_APP)
+# define GTEST_OS_WINDOWS_PHONE 1
+# elif WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
+# define GTEST_OS_WINDOWS_RT 1
+# else
+ // WINAPI_FAMILY defined but no known partition matched.
+ // Default to desktop.
+# define GTEST_OS_WINDOWS_DESKTOP 1
+# endif
# else
# define GTEST_OS_WINDOWS_DESKTOP 1
# endif // _WIN32_WCE
# define GTEST_OS_QNX 1
#endif // __CYGWIN__
+// Macros for disabling Microsoft Visual C++ warnings.
+//
+// GTEST_DISABLE_MSC_WARNINGS_PUSH_(4800 4385)
+// /* code that triggers warnings C4800 and C4385 */
+// GTEST_DISABLE_MSC_WARNINGS_POP_()
+#if _MSC_VER >= 1500
+# define GTEST_DISABLE_MSC_WARNINGS_PUSH_(warnings) \
+ __pragma(warning(push)) \
+ __pragma(warning(disable: warnings))
+# define GTEST_DISABLE_MSC_WARNINGS_POP_() \
+ __pragma(warning(pop))
+#else
+// Older versions of MSVC don't have __pragma.
+# define GTEST_DISABLE_MSC_WARNINGS_PUSH_(warnings)
+# define GTEST_DISABLE_MSC_WARNINGS_POP_()
+#endif
+
#ifndef GTEST_LANG_CXX11
// gcc and clang define __GXX_EXPERIMENTAL_CXX0X__ when
// -std={c,gnu}++{0x,11} is passed. The C++11 standard specifies a
# endif
#endif
+// C++11 specifies that <initializer_list> provides std::initializer_list. Use
+// that if gtest is used in C++11 mode and libstdc++ isn't very old (binaries
+// targeting OS X 10.6 can build with clang but need to use gcc4.2's
+// libstdc++).
+#if GTEST_LANG_CXX11 && (!defined(__GLIBCXX__) || __GLIBCXX__ > 20110325)
+# define GTEST_HAS_STD_INITIALIZER_LIST_ 1
+#endif
+
+// C++11 specifies that <tuple> provides std::tuple.
+// Some platforms still might not have it, however.
+#if GTEST_LANG_CXX11
+# define GTEST_HAS_STD_TUPLE_ 1
+# if defined(__clang__)
+// Inspired by http://clang.llvm.org/docs/LanguageExtensions.html#__has_include
+# if defined(__has_include) && !__has_include(<tuple>)
+# undef GTEST_HAS_STD_TUPLE_
+# endif
+# elif defined(_MSC_VER)
+// Inspired by boost/config/stdlib/dinkumware.hpp
+# if defined(_CPPLIB_VER) && _CPPLIB_VER < 520
+# undef GTEST_HAS_STD_TUPLE_
+# endif
+# elif defined(__GLIBCXX__)
+// Inspired by boost/config/stdlib/libstdcpp3.hpp,
+// http://gcc.gnu.org/gcc-4.2/changes.html and
+// http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt01ch01.html#manual.intro.status.standard.200x
+# if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 2)
+# undef GTEST_HAS_STD_TUPLE_
+# endif
+# endif
+#endif
+
// Brings in definitions for functions used in the testing::internal::posix
// namespace (read, write, close, chdir, isatty, stat). We do not currently
// use them on Windows Mobile.
-#if !GTEST_OS_WINDOWS
+#if GTEST_OS_WINDOWS
+# if !GTEST_OS_WINDOWS_MOBILE
+# include <direct.h>
+# include <io.h>
+# endif
+// In order to avoid having to include <windows.h>, use forward declaration
+// assuming CRITICAL_SECTION is a typedef of _RTL_CRITICAL_SECTION.
+// This assumption is verified by
+// WindowsTypesTest.CRITICAL_SECTIONIs_RTL_CRITICAL_SECTION.
+struct _RTL_CRITICAL_SECTION;
+#else
// This assumes that non-Windows OSes provide unistd.h. For OSes where this
// is not the case, we need to include headers that provide the functions
// mentioned above.
# include <unistd.h>
# include <strings.h>
-#elif !GTEST_OS_WINDOWS_MOBILE
-# include <direct.h>
-# include <io.h>
-#endif
+#endif // GTEST_OS_WINDOWS
#if GTEST_OS_LINUX_ANDROID
// Used to define __ANDROID_API__ matching the target NDK API level.
// To avoid conditional compilation everywhere, we make it
// gtest-port.h's responsibility to #include the header implementing
-// tr1/tuple.
+// tuple.
+#if GTEST_HAS_STD_TUPLE_
+# include <tuple> // IWYU pragma: export
+# define GTEST_TUPLE_NAMESPACE_ ::std
+#endif // GTEST_HAS_STD_TUPLE_
+
+// We include tr1::tuple even if std::tuple is available to define printers for
+// them.
#if GTEST_HAS_TR1_TUPLE
+# ifndef GTEST_TUPLE_NAMESPACE_
+# define GTEST_TUPLE_NAMESPACE_ ::std::tr1
+# endif // GTEST_TUPLE_NAMESPACE_
# if GTEST_USE_OWN_TR1_TUPLE
-# include "gtest/internal/gtest-tuple.h"
+# include "gtest/internal/gtest-tuple.h" // IWYU pragma: export // NOLINT
# elif GTEST_ENV_HAS_STD_TUPLE_
# include <tuple>
// C++11 puts its tuple into the ::std namespace rather than
// This prevents <boost/tr1/detail/config.hpp>, which defines
// BOOST_HAS_TR1_TUPLE, from being #included by Boost's <tuple>.
# define BOOST_TR1_DETAIL_CONFIG_HPP_INCLUDED
-# include <tuple>
+# include <tuple> // IWYU pragma: export // NOLINT
# elif defined(__GNUC__) && (GTEST_GCC_VER_ >= 40000)
// GCC 4.0+ implements tr1/tuple in the <tr1/tuple> header. This does
# else
// If the compiler is not GCC 4.0+, we assume the user is using a
// spec-conforming TR1 implementation.
-# include <tuple> // NOLINT
+# include <tuple> // IWYU pragma: export // NOLINT
# endif // GTEST_USE_OWN_TR1_TUPLE
#endif // GTEST_HAS_TR1_TUPLE
#ifndef GTEST_HAS_STREAM_REDIRECTION
// By default, we assume that stream redirection is supported on all
// platforms except known mobile ones.
-# if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_SYMBIAN
+# if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_SYMBIAN || \
+ GTEST_OS_WINDOWS_PHONE || GTEST_OS_WINDOWS_RT
# define GTEST_HAS_STREAM_REDIRECTION 0
# else
# define GTEST_HAS_STREAM_REDIRECTION 1
# define GTEST_MUST_USE_RESULT_
#endif // __GNUC__ && (GTEST_GCC_VER_ >= 30400) && !COMPILER_ICC
+#if GTEST_LANG_CXX11
+# define GTEST_MOVE_(x) ::std::move(x) // NOLINT
+#else
+# define GTEST_MOVE_(x) x
+#endif
+
+// MS C++ compiler emits warning when a conditional expression is compile time
+// constant. In some contexts this warning is false positive and needs to be
+// suppressed. Use the following two macros in such cases:
+//
+// GTEST_INTENTIONAL_CONST_COND_PUSH_()
+// while (true) {
+// GTEST_INTENTIONAL_CONST_COND_POP_()
+// }
+# define GTEST_INTENTIONAL_CONST_COND_PUSH_() \
+ GTEST_DISABLE_MSC_WARNINGS_PUSH_(4127)
+# define GTEST_INTENTIONAL_CONST_COND_POP_() \
+ GTEST_DISABLE_MSC_WARNINGS_POP_()
+
// Determine whether the compiler supports Microsoft's Structured Exception
// Handling. This is supported by several Windows compilers but generally
// does not exist on any other system.
# define GTEST_HAS_SEH 0
# endif
+#define GTEST_IS_THREADSAFE \
+ (0 \
+ || (GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT) \
+ || GTEST_HAS_PTHREAD)
+
#endif // GTEST_HAS_SEH
#ifdef _MSC_VER
# define GTEST_HAS_CXXABI_H_ 0
#endif
+// A function level attribute to disable checking for use of uninitialized
+// memory when built with MemorySanitizer.
+#if defined(__clang__)
+# if __has_feature(memory_sanitizer)
+# define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_ \
+ __attribute__((no_sanitize_memory))
+# else
+# define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_
+# endif // __has_feature(memory_sanitizer)
+#else
+# define GTEST_ATTRIBUTE_NO_SANITIZE_MEMORY_
+#endif // __clang__
+
+// A function level attribute to disable AddressSanitizer instrumentation.
+#if defined(__clang__)
+# if __has_feature(address_sanitizer)
+# define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_ \
+ __attribute__((no_sanitize_address))
+# else
+# define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
+# endif // __has_feature(address_sanitizer)
+#else
+# define GTEST_ATTRIBUTE_NO_SANITIZE_ADDRESS_
+#endif // __clang__
+
+// A function level attribute to disable ThreadSanitizer instrumentation.
+#if defined(__clang__)
+# if __has_feature(thread_sanitizer)
+# define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_ \
+ __attribute__((no_sanitize_thread))
+# else
+# define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_
+# endif // __has_feature(thread_sanitizer)
+#else
+# define GTEST_ATTRIBUTE_NO_SANITIZE_THREAD_
+#endif // __clang__
+
namespace testing {
class Message;
+#if defined(GTEST_TUPLE_NAMESPACE_)
+// Import tuple and friends into the ::testing namespace.
+// It is part of our interface, having them in ::testing allows us to change
+// their types as needed.
+using GTEST_TUPLE_NAMESPACE_::get;
+using GTEST_TUPLE_NAMESPACE_::make_tuple;
+using GTEST_TUPLE_NAMESPACE_::tuple;
+using GTEST_TUPLE_NAMESPACE_::tuple_size;
+using GTEST_TUPLE_NAMESPACE_::tuple_element;
+#endif // defined(GTEST_TUPLE_NAMESPACE_)
+
namespace internal {
// A secret type that Google Test users don't know about. It has no
// expression is true. For example, you could use it to verify the
// size of a static array:
//
-// GTEST_COMPILE_ASSERT_(ARRAYSIZE(content_type_names) == CONTENT_NUM_TYPES,
-// content_type_names_incorrect_size);
+// GTEST_COMPILE_ASSERT_(GTEST_ARRAY_SIZE_(names) == NUM_NAMES,
+// names_incorrect_size);
//
// or to make sure a struct is smaller than a certain size:
//
struct StaticAssertTypeEqHelper;
template <typename T>
-struct StaticAssertTypeEqHelper<T, T> {};
+struct StaticAssertTypeEqHelper<T, T> {
+ enum { value = true };
+};
+
+// Evaluates to the number of elements in 'array'.
+#define GTEST_ARRAY_SIZE_(array) (sizeof(array) / sizeof(array[0]))
#if GTEST_HAS_GLOBAL_STRING
typedef ::string string;
}
}
+ friend void swap(scoped_ptr& a, scoped_ptr& b) {
+ using std::swap;
+ swap(a.ptr_, b.ptr_);
+ }
+
private:
T* ptr_;
// for compile-time type checking, and has no overhead in an
// optimized build at run-time, as it will be optimized away
// completely.
+ GTEST_INTENTIONAL_CONST_COND_PUSH_()
if (false) {
+ GTEST_INTENTIONAL_CONST_COND_POP_()
const To to = NULL;
::testing::internal::ImplicitCast_<From*>(to);
}
#endif // GTEST_HAS_DEATH_TEST
// Defines synchronization primitives.
-
-#if GTEST_HAS_PTHREAD
-
-// Sleeps for (roughly) n milli-seconds. This function is only for
-// testing Google Test's own constructs. Don't use it in user tests,
-// either directly or indirectly.
+#if GTEST_IS_THREADSAFE
+# if GTEST_HAS_PTHREAD
+// Sleeps for (roughly) n milliseconds. This function is only for testing
+// Google Test's own constructs. Don't use it in user tests, either
+// directly or indirectly.
inline void SleepMilliseconds(int n) {
const timespec time = {
0, // 0 seconds.
};
nanosleep(&time, NULL);
}
+# endif // GTEST_HAS_PTHREAD
+# if 0 // OS detection
+# elif GTEST_HAS_PTHREAD
// Allows a controller thread to pause execution of newly created
// threads until notified. Instances of this class must be created
// and destroyed in the controller thread.
GTEST_DISALLOW_COPY_AND_ASSIGN_(Notification);
};
+# elif GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT
+
+GTEST_API_ void SleepMilliseconds(int n);
+
+// Provides leak-safe Windows kernel handle ownership.
+// Used in death tests and in threading support.
+class GTEST_API_ AutoHandle {
+ public:
+ // Assume that Win32 HANDLE type is equivalent to void*. Doing so allows us to
+ // avoid including <windows.h> in this header file. Including <windows.h> is
+ // undesirable because it defines a lot of symbols and macros that tend to
+ // conflict with client code. This assumption is verified by
+ // WindowsTypesTest.HANDLEIsVoidStar.
+ typedef void* Handle;
+ AutoHandle();
+ explicit AutoHandle(Handle handle);
+
+ ~AutoHandle();
+
+ Handle Get() const;
+ void Reset();
+ void Reset(Handle handle);
+
+ private:
+ // Returns true iff the handle is a valid handle object that can be closed.
+ bool IsCloseable() const;
+
+ Handle handle_;
+
+ GTEST_DISALLOW_COPY_AND_ASSIGN_(AutoHandle);
+};
+
+// Allows a controller thread to pause execution of newly created
+// threads until notified. Instances of this class must be created
+// and destroyed in the controller thread.
+//
+// This class is only for testing Google Test's own constructs. Do not
+// use it in user tests, either directly or indirectly.
+class GTEST_API_ Notification {
+ public:
+ Notification();
+ void Notify();
+ void WaitForNotification();
+
+ private:
+ AutoHandle event_;
+
+ GTEST_DISALLOW_COPY_AND_ASSIGN_(Notification);
+};
+# endif // OS detection
+
+// On MinGW, we can have both GTEST_OS_WINDOWS and GTEST_HAS_PTHREAD
+// defined, but we don't want to use MinGW's pthreads implementation, which
+// has conformance problems with some versions of the POSIX standard.
+# if GTEST_HAS_PTHREAD && !GTEST_OS_WINDOWS_MINGW
+
// As a C-function, ThreadFuncWithCLinkage cannot be templated itself.
// Consequently, it cannot select a correct instantiation of ThreadWithParam
// in order to call its Run(). Introducing ThreadWithParamBase as a
template <typename T>
class ThreadWithParam : public ThreadWithParamBase {
public:
- typedef void (*UserThreadFunc)(T);
+ typedef void UserThreadFunc(T);
- ThreadWithParam(
- UserThreadFunc func, T param, Notification* thread_can_start)
+ ThreadWithParam(UserThreadFunc* func, T param, Notification* thread_can_start)
: func_(func),
param_(param),
thread_can_start_(thread_can_start),
}
private:
- const UserThreadFunc func_; // User-supplied thread function.
+ UserThreadFunc* const func_; // User-supplied thread function.
const T param_; // User-supplied parameter to the thread function.
// When non-NULL, used to block execution until the controller thread
// notifies.
GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadWithParam);
};
+# endif // GTEST_HAS_PTHREAD && !GTEST_OS_WINDOWS_MINGW
-// MutexBase and Mutex implement mutex on pthreads-based platforms. They
-// are used in conjunction with class MutexLock:
+# if 0 // OS detection
+# elif GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT
+
+// Mutex implements mutex on Windows platforms. It is used in conjunction
+// with class MutexLock:
//
// Mutex mutex;
// ...
-// MutexLock lock(&mutex); // Acquires the mutex and releases it at the end
-// // of the current scope.
-//
-// MutexBase implements behavior for both statically and dynamically
-// allocated mutexes. Do not use MutexBase directly. Instead, write
-// the following to define a static mutex:
+// MutexLock lock(&mutex); // Acquires the mutex and releases it at the
+// // end of the current scope.
//
+// A static Mutex *must* be defined or declared using one of the following
+// macros:
// GTEST_DEFINE_STATIC_MUTEX_(g_some_mutex);
+// GTEST_DECLARE_STATIC_MUTEX_(g_some_mutex);
//
-// You can forward declare a static mutex like this:
+// (A non-static Mutex is defined/declared in the usual way).
+class GTEST_API_ Mutex {
+ public:
+ enum MutexType { kStatic = 0, kDynamic = 1 };
+ // We rely on kStaticMutex being 0 as it is to what the linker initializes
+ // type_ in static mutexes. critical_section_ will be initialized lazily
+ // in ThreadSafeLazyInit().
+ enum StaticConstructorSelector { kStaticMutex = 0 };
+
+ // This constructor intentionally does nothing. It relies on type_ being
+ // statically initialized to 0 (effectively setting it to kStatic) and on
+ // ThreadSafeLazyInit() to lazily initialize the rest of the members.
+ explicit Mutex(StaticConstructorSelector /*dummy*/) {}
+
+ Mutex();
+ ~Mutex();
+
+ void Lock();
+
+ void Unlock();
+
+ // Does nothing if the current thread holds the mutex. Otherwise, crashes
+ // with high probability.
+ void AssertHeld();
+
+ private:
+ // Initializes owner_thread_id_ and critical_section_ in static mutexes.
+ void ThreadSafeLazyInit();
+
+ // Per http://blogs.msdn.com/b/oldnewthing/archive/2004/02/23/78395.aspx,
+ // we assume that 0 is an invalid value for thread IDs.
+ unsigned int owner_thread_id_;
+
+ // For static mutexes, we rely on these members being initialized to zeros
+ // by the linker.
+ MutexType type_;
+ long critical_section_init_phase_; // NOLINT
+ _RTL_CRITICAL_SECTION* critical_section_;
+
+ GTEST_DISALLOW_COPY_AND_ASSIGN_(Mutex);
+};
+
+# define GTEST_DECLARE_STATIC_MUTEX_(mutex) \
+ extern ::testing::internal::Mutex mutex
+
+# define GTEST_DEFINE_STATIC_MUTEX_(mutex) \
+ ::testing::internal::Mutex mutex(::testing::internal::Mutex::kStaticMutex)
+
+// We cannot name this class MutexLock because the ctor declaration would
+// conflict with a macro named MutexLock, which is defined on some
+// platforms. That macro is used as a defensive measure to prevent against
+// inadvertent misuses of MutexLock like "MutexLock(&mu)" rather than
+// "MutexLock l(&mu)". Hence the typedef trick below.
+class GTestMutexLock {
+ public:
+ explicit GTestMutexLock(Mutex* mutex)
+ : mutex_(mutex) { mutex_->Lock(); }
+
+ ~GTestMutexLock() { mutex_->Unlock(); }
+
+ private:
+ Mutex* const mutex_;
+
+ GTEST_DISALLOW_COPY_AND_ASSIGN_(GTestMutexLock);
+};
+
+typedef GTestMutexLock MutexLock;
+
+// Base class for ValueHolder<T>. Allows a caller to hold and delete a value
+// without knowing its type.
+class ThreadLocalValueHolderBase {
+ public:
+ virtual ~ThreadLocalValueHolderBase() {}
+};
+
+// Provides a way for a thread to send notifications to a ThreadLocal
+// regardless of its parameter type.
+class ThreadLocalBase {
+ public:
+ // Creates a new ValueHolder<T> object holding a default value passed to
+ // this ThreadLocal<T>'s constructor and returns it. It is the caller's
+ // responsibility not to call this when the ThreadLocal<T> instance already
+ // has a value on the current thread.
+ virtual ThreadLocalValueHolderBase* NewValueForCurrentThread() const = 0;
+
+ protected:
+ ThreadLocalBase() {}
+ virtual ~ThreadLocalBase() {}
+
+ private:
+ GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocalBase);
+};
+
+// Maps a thread to a set of ThreadLocals that have values instantiated on that
+// thread and notifies them when the thread exits. A ThreadLocal instance is
+// expected to persist until all threads it has values on have terminated.
+class GTEST_API_ ThreadLocalRegistry {
+ public:
+ // Registers thread_local_instance as having value on the current thread.
+ // Returns a value that can be used to identify the thread from other threads.
+ static ThreadLocalValueHolderBase* GetValueOnCurrentThread(
+ const ThreadLocalBase* thread_local_instance);
+
+ // Invoked when a ThreadLocal instance is destroyed.
+ static void OnThreadLocalDestroyed(
+ const ThreadLocalBase* thread_local_instance);
+};
+
+class GTEST_API_ ThreadWithParamBase {
+ public:
+ void Join();
+
+ protected:
+ class Runnable {
+ public:
+ virtual ~Runnable() {}
+ virtual void Run() = 0;
+ };
+
+ ThreadWithParamBase(Runnable *runnable, Notification* thread_can_start);
+ virtual ~ThreadWithParamBase();
+
+ private:
+ AutoHandle thread_;
+};
+
+// Helper class for testing Google Test's multi-threading constructs.
+template <typename T>
+class ThreadWithParam : public ThreadWithParamBase {
+ public:
+ typedef void UserThreadFunc(T);
+
+ ThreadWithParam(UserThreadFunc* func, T param, Notification* thread_can_start)
+ : ThreadWithParamBase(new RunnableImpl(func, param), thread_can_start) {
+ }
+ virtual ~ThreadWithParam() {}
+
+ private:
+ class RunnableImpl : public Runnable {
+ public:
+ RunnableImpl(UserThreadFunc* func, T param)
+ : func_(func),
+ param_(param) {
+ }
+ virtual ~RunnableImpl() {}
+ virtual void Run() {
+ func_(param_);
+ }
+
+ private:
+ UserThreadFunc* const func_;
+ const T param_;
+
+ GTEST_DISALLOW_COPY_AND_ASSIGN_(RunnableImpl);
+ };
+
+ GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadWithParam);
+};
+
+// Implements thread-local storage on Windows systems.
//
-// GTEST_DECLARE_STATIC_MUTEX_(g_some_mutex);
+// // Thread 1
+// ThreadLocal<int> tl(100); // 100 is the default value for each thread.
+//
+// // Thread 2
+// tl.set(150); // Changes the value for thread 2 only.
+// EXPECT_EQ(150, tl.get());
+//
+// // Thread 1
+// EXPECT_EQ(100, tl.get()); // In thread 1, tl has the original value.
+// tl.set(200);
+// EXPECT_EQ(200, tl.get());
//
-// To create a dynamic mutex, just define an object of type Mutex.
+// The template type argument T must have a public copy constructor.
+// In addition, the default ThreadLocal constructor requires T to have
+// a public default constructor.
+//
+// The users of a TheadLocal instance have to make sure that all but one
+// threads (including the main one) using that instance have exited before
+// destroying it. Otherwise, the per-thread objects managed for them by the
+// ThreadLocal instance are not guaranteed to be destroyed on all platforms.
+//
+// Google Test only uses global ThreadLocal objects. That means they
+// will die after main() has returned. Therefore, no per-thread
+// object managed by Google Test will be leaked as long as all threads
+// using Google Test have exited when main() returns.
+template <typename T>
+class ThreadLocal : public ThreadLocalBase {
+ public:
+ ThreadLocal() : default_() {}
+ explicit ThreadLocal(const T& value) : default_(value) {}
+
+ ~ThreadLocal() { ThreadLocalRegistry::OnThreadLocalDestroyed(this); }
+
+ T* pointer() { return GetOrCreateValue(); }
+ const T* pointer() const { return GetOrCreateValue(); }
+ const T& get() const { return *pointer(); }
+ void set(const T& value) { *pointer() = value; }
+
+ private:
+ // Holds a value of T. Can be deleted via its base class without the caller
+ // knowing the type of T.
+ class ValueHolder : public ThreadLocalValueHolderBase {
+ public:
+ explicit ValueHolder(const T& value) : value_(value) {}
+
+ T* pointer() { return &value_; }
+
+ private:
+ T value_;
+ GTEST_DISALLOW_COPY_AND_ASSIGN_(ValueHolder);
+ };
+
+
+ T* GetOrCreateValue() const {
+ return static_cast<ValueHolder*>(
+ ThreadLocalRegistry::GetValueOnCurrentThread(this))->pointer();
+ }
+
+ virtual ThreadLocalValueHolderBase* NewValueForCurrentThread() const {
+ return new ValueHolder(default_);
+ }
+
+ const T default_; // The default value for each thread.
+
+ GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocal);
+};
+
+# elif GTEST_HAS_PTHREAD
+
+// MutexBase and Mutex implement mutex on pthreads-based platforms.
class MutexBase {
public:
// Acquires this mutex.
};
// Forward-declares a static mutex.
-# define GTEST_DECLARE_STATIC_MUTEX_(mutex) \
- extern ::testing::internal::MutexBase mutex
+# define GTEST_DECLARE_STATIC_MUTEX_(mutex) \
+ extern ::testing::internal::MutexBase mutex
// Defines and statically (i.e. at link time) initializes a static mutex.
// The initialization list here does not explicitly initialize each field,
// particular, the owner_ field (a pthread_t) is not explicitly initialized.
// This allows initialization to work whether pthread_t is a scalar or struct.
// The flag -Wmissing-field-initializers must not be specified for this to work.
-# define GTEST_DEFINE_STATIC_MUTEX_(mutex) \
- ::testing::internal::MutexBase mutex = { PTHREAD_MUTEX_INITIALIZER, false }
+# define GTEST_DEFINE_STATIC_MUTEX_(mutex) \
+ ::testing::internal::MutexBase mutex = { PTHREAD_MUTEX_INITIALIZER, false }
// The Mutex class can only be used for mutexes created at runtime. It
// shares its API with MutexBase otherwise.
GTEST_DISALLOW_COPY_AND_ASSIGN_(Mutex);
};
-// We cannot name this class MutexLock as the ctor declaration would
+// We cannot name this class MutexLock because the ctor declaration would
// conflict with a macro named MutexLock, which is defined on some
-// platforms. Hence the typedef trick below.
+// platforms. That macro is used as a defensive measure to prevent against
+// inadvertent misuses of MutexLock like "MutexLock(&mu)" rather than
+// "MutexLock l(&mu)". Hence the typedef trick below.
class GTestMutexLock {
public:
explicit GTestMutexLock(MutexBase* mutex)
}
// Implements thread-local storage on pthreads-based systems.
-//
-// // Thread 1
-// ThreadLocal<int> tl(100); // 100 is the default value for each thread.
-//
-// // Thread 2
-// tl.set(150); // Changes the value for thread 2 only.
-// EXPECT_EQ(150, tl.get());
-//
-// // Thread 1
-// EXPECT_EQ(100, tl.get()); // In thread 1, tl has the original value.
-// tl.set(200);
-// EXPECT_EQ(200, tl.get());
-//
-// The template type argument T must have a public copy constructor.
-// In addition, the default ThreadLocal constructor requires T to have
-// a public default constructor.
-//
-// An object managed for a thread by a ThreadLocal instance is deleted
-// when the thread exits. Or, if the ThreadLocal instance dies in
-// that thread, when the ThreadLocal dies. It's the user's
-// responsibility to ensure that all other threads using a ThreadLocal
-// have exited when it dies, or the per-thread objects for those
-// threads will not be deleted.
-//
-// Google Test only uses global ThreadLocal objects. That means they
-// will die after main() has returned. Therefore, no per-thread
-// object managed by Google Test will be leaked as long as all threads
-// using Google Test have exited when main() returns.
template <typename T>
class ThreadLocal {
public:
GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadLocal);
};
-# define GTEST_IS_THREADSAFE 1
+# endif // OS detection
-#else // GTEST_HAS_PTHREAD
+#else // GTEST_IS_THREADSAFE
// A dummy implementation of synchronization primitives (mutex, lock,
// and thread-local variable). Necessary for compiling Google Test where
# define GTEST_DEFINE_STATIC_MUTEX_(mutex) ::testing::internal::Mutex mutex
+// We cannot name this class MutexLock because the ctor declaration would
+// conflict with a macro named MutexLock, which is defined on some
+// platforms. That macro is used as a defensive measure to prevent against
+// inadvertent misuses of MutexLock like "MutexLock(&mu)" rather than
+// "MutexLock l(&mu)". Hence the typedef trick below.
class GTestMutexLock {
public:
explicit GTestMutexLock(Mutex*) {} // NOLINT
T value_;
};
-// The above synchronization primitives have dummy implementations.
-// Therefore Google Test is not thread-safe.
-# define GTEST_IS_THREADSAFE 0
-
-#endif // GTEST_HAS_PTHREAD
+#endif // GTEST_IS_THREADSAFE
// Returns the number of threads running in the process, or 0 to indicate that
// we cannot detect it.
// Functions deprecated by MSVC 8.0.
-#ifdef _MSC_VER
-// Temporarily disable warning 4996 (deprecated function).
-# pragma warning(push)
-# pragma warning(disable:4996)
-#endif
+GTEST_DISABLE_MSC_WARNINGS_PUSH_(4996 /* deprecated function */)
inline const char* StrNCpy(char* dest, const char* src, size_t n) {
return strncpy(dest, src, n);
// StrError() aren't needed on Windows CE at this time and thus not
// defined there.
-#if !GTEST_OS_WINDOWS_MOBILE
+#if !GTEST_OS_WINDOWS_MOBILE && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT
inline int ChDir(const char* dir) { return chdir(dir); }
#endif
inline FILE* FOpen(const char* path, const char* mode) {
inline const char* StrError(int errnum) { return strerror(errnum); }
#endif
inline const char* GetEnv(const char* name) {
-#if GTEST_OS_WINDOWS_MOBILE
+#if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE | GTEST_OS_WINDOWS_RT
// We are on Windows CE, which has no environment variables.
return NULL;
#elif defined(__BORLANDC__) || defined(__SunOS_5_8) || defined(__SunOS_5_9)
#endif
}
-#ifdef _MSC_VER
-# pragma warning(pop) // Restores the warning state.
-#endif
+GTEST_DISABLE_MSC_WARNINGS_POP_()
#if GTEST_OS_WINDOWS_MOBILE
// Windows CE has no C library. The abort() function is used in
} // namespace testing
#endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_
+
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