// Copyright 2014 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #include "src/base/platform/mutex.h" #include "testing/gtest/include/gtest/gtest.h" namespace v8 { namespace base { TEST(Mutex, LockGuardMutex) { Mutex mutex; { MutexGuard lock_guard(&mutex); } { MutexGuard lock_guard(&mutex); } } TEST(Mutex, LockGuardRecursiveMutex) { RecursiveMutex recursive_mutex; { LockGuard<RecursiveMutex> lock_guard(&recursive_mutex); } { LockGuard<RecursiveMutex> lock_guard1(&recursive_mutex); LockGuard<RecursiveMutex> lock_guard2(&recursive_mutex); } } TEST(Mutex, LockGuardLazyMutex) { LazyMutex lazy_mutex = LAZY_MUTEX_INITIALIZER; { MutexGuard lock_guard(lazy_mutex.Pointer()); } { MutexGuard lock_guard(lazy_mutex.Pointer()); } } TEST(Mutex, LockGuardLazyRecursiveMutex) { LazyRecursiveMutex lazy_recursive_mutex = LAZY_RECURSIVE_MUTEX_INITIALIZER; { LockGuard<RecursiveMutex> lock_guard(lazy_recursive_mutex.Pointer()); } { LockGuard<RecursiveMutex> lock_guard1(lazy_recursive_mutex.Pointer()); LockGuard<RecursiveMutex> lock_guard2(lazy_recursive_mutex.Pointer()); } } TEST(Mutex, MultipleMutexes) { Mutex mutex1; Mutex mutex2; Mutex mutex3; // Order 1 mutex1.Lock(); mutex2.Lock(); mutex3.Lock(); mutex1.Unlock(); mutex2.Unlock(); mutex3.Unlock(); // Order 2 mutex1.Lock(); mutex2.Lock(); mutex3.Lock(); mutex3.Unlock(); mutex2.Unlock(); mutex1.Unlock(); } TEST(Mutex, MultipleRecursiveMutexes) { RecursiveMutex recursive_mutex1; RecursiveMutex recursive_mutex2; // Order 1 recursive_mutex1.Lock(); recursive_mutex2.Lock(); EXPECT_TRUE(recursive_mutex1.TryLock()); EXPECT_TRUE(recursive_mutex2.TryLock()); recursive_mutex1.Unlock(); recursive_mutex1.Unlock(); recursive_mutex2.Unlock(); recursive_mutex2.Unlock(); // Order 2 recursive_mutex1.Lock(); EXPECT_TRUE(recursive_mutex1.TryLock()); recursive_mutex2.Lock(); EXPECT_TRUE(recursive_mutex2.TryLock()); recursive_mutex2.Unlock(); recursive_mutex1.Unlock(); recursive_mutex2.Unlock(); recursive_mutex1.Unlock(); } } // namespace base } // namespace v8