diff options
Diffstat (limited to 'include/gtest/internal/gtest-port.h')
| -rw-r--r-- | include/gtest/internal/gtest-port.h | 530 |
1 files changed, 433 insertions, 97 deletions
diff --git a/include/gtest/internal/gtest-port.h b/include/gtest/internal/gtest-port.h index a117676..f376dfa 100644 --- a/include/gtest/internal/gtest-port.h +++ b/include/gtest/internal/gtest-port.h @@ -136,6 +136,8 @@ // 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 @@ -269,6 +271,7 @@ # include <TargetConditionals.h> #endif +#include <algorithm> // NOLINT #include <iostream> // NOLINT #include <sstream> // NOLINT #include <string> // NOLINT @@ -299,6 +302,19 @@ # 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 @@ -331,6 +347,23 @@ # 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 @@ -379,16 +412,23 @@ // 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. @@ -633,11 +673,21 @@ // 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 @@ -668,7 +718,7 @@ using ::std::tuple_size; // 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 @@ -691,7 +741,7 @@ using ::std::tuple_size; # 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 @@ -725,7 +775,8 @@ using ::std::tuple_size; #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 @@ -842,20 +893,14 @@ using ::std::tuple_size; // 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_ +// GTEST_INTENTIONAL_CONST_COND_PUSH_() // while (true) { -// GTEST_INTENTIONAL_CONST_COND_POP_ +// GTEST_INTENTIONAL_CONST_COND_POP_() // } -#if defined(_MSC_VER) -# define GTEST_INTENTIONAL_CONST_COND_PUSH_ \ - __pragma(warning(push)) \ - __pragma(warning(disable: 4127)) -# define GTEST_INTENTIONAL_CONST_COND_POP_ \ - __pragma(warning(pop)) -#else -# define GTEST_INTENTIONAL_CONST_COND_PUSH_ -# define GTEST_INTENTIONAL_CONST_COND_POP_ -#endif +# 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 @@ -871,6 +916,11 @@ using ::std::tuple_size; # 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 @@ -926,10 +976,33 @@ using ::std::tuple_size; # 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 @@ -1008,7 +1081,9 @@ template <typename T1, typename T2> 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])) @@ -1060,6 +1135,11 @@ class scoped_ptr { } } + friend void swap(scoped_ptr& a, scoped_ptr& b) { + using std::swap; + swap(a.ptr_, b.ptr_); + } + private: T* ptr_; @@ -1271,9 +1351,9 @@ inline To DownCast_(From* f) { // so we only accept pointers // 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_ + GTEST_INTENTIONAL_CONST_COND_PUSH_() if (false) { - GTEST_INTENTIONAL_CONST_COND_POP_ + GTEST_INTENTIONAL_CONST_COND_POP_() const To to = NULL; ::testing::internal::ImplicitCast_<From*>(to); } @@ -1328,12 +1408,11 @@ extern ::std::vector<testing::internal::string> g_argvs; #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. @@ -1341,7 +1420,10 @@ inline void SleepMilliseconds(int n) { }; 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. @@ -1385,6 +1467,62 @@ class Notification { 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 @@ -1422,10 +1560,9 @@ extern "C" inline void* ThreadFuncWithCLinkage(void* thread) { 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), @@ -1452,7 +1589,7 @@ class ThreadWithParam : public ThreadWithParamBase { } 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. @@ -1462,26 +1599,255 @@ class ThreadWithParam : public ThreadWithParamBase { GTEST_DISALLOW_COPY_AND_ASSIGN_(ThreadWithParam); }; +# endif // GTEST_HAS_PTHREAD && !GTEST_OS_WINDOWS_MINGW + +# if 0 // OS detection +# elif GTEST_OS_WINDOWS && !GTEST_OS_WINDOWS_PHONE && !GTEST_OS_WINDOWS_RT -// MutexBase and Mutex implement mutex on pthreads-based platforms. They -// are used in conjunction with class MutexLock: +// 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. // -// To create a dynamic mutex, just define an object of type Mutex. +// // 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. +// +// 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. @@ -1526,8 +1892,8 @@ class MutexBase { }; // 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, @@ -1535,8 +1901,8 @@ class MutexBase { // 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. @@ -1554,9 +1920,11 @@ class Mutex : public MutexBase { 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) @@ -1590,34 +1958,6 @@ extern "C" inline void DeleteThreadLocalValue(void* value_holder) { } // 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: @@ -1682,9 +2022,9 @@ class ThreadLocal { 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 @@ -1704,6 +2044,11 @@ class Mutex { # 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 @@ -1724,11 +2069,7 @@ class ThreadLocal { 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. @@ -1901,11 +2242,7 @@ inline bool IsDir(const StatStruct& st) { return S_ISDIR(st.st_mode); } // 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); @@ -1915,7 +2252,7 @@ inline const char* StrNCpy(char* dest, const char* src, size_t 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) { @@ -1939,7 +2276,7 @@ inline int Close(int fd) { return close(fd); } 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) @@ -1952,9 +2289,7 @@ inline const char* GetEnv(const char* name) { #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 @@ -2094,3 +2429,4 @@ const char* StringFromGTestEnv(const char* flag, const char* default_val); } // namespace testing #endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_PORT_H_ + |