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// 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
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