e76482f2da
Drop the previous Mutex and ScopedLock classes from platform files. Add new Mutex, RecursiveMutex and LockGuard classes, which are designed after their C++11 counterparts, so that at some point we can simply drop our custom code and switch to the C++11 classes. We distinguish regular and recursive mutexes, as the latter don't work well with condition variables, which will be introduced by a followup CL. R=mstarzinger@chromium.org Review URL: https://codereview.chromium.org/23625003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16416 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
119 lines
3.5 KiB
C++
119 lines
3.5 KiB
C++
// Copyright 2013 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <cstdlib>
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#include "v8.h"
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#include "cctest.h"
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#include "platform/mutex.h"
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using namespace ::v8::internal;
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TEST(LockGuardMutex) {
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Mutex mutex;
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{ LockGuard<Mutex> lock_guard(&mutex);
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}
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{ LockGuard<Mutex> lock_guard(&mutex);
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}
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}
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TEST(LockGuardRecursiveMutex) {
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RecursiveMutex recursive_mutex;
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{ LockGuard<RecursiveMutex> lock_guard(&recursive_mutex);
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}
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{ LockGuard<RecursiveMutex> lock_guard1(&recursive_mutex);
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LockGuard<RecursiveMutex> lock_guard2(&recursive_mutex);
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}
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}
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TEST(LockGuardLazyMutex) {
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LazyMutex lazy_mutex = LAZY_MUTEX_INITIALIZER;
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{ LockGuard<Mutex> lock_guard(lazy_mutex.Pointer());
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}
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{ LockGuard<Mutex> lock_guard(lazy_mutex.Pointer());
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}
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}
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TEST(LockGuardLazyRecursiveMutex) {
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LazyRecursiveMutex lazy_recursive_mutex = LAZY_RECURSIVE_MUTEX_INITIALIZER;
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{ LockGuard<RecursiveMutex> lock_guard(lazy_recursive_mutex.Pointer());
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}
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{ LockGuard<RecursiveMutex> lock_guard1(lazy_recursive_mutex.Pointer());
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LockGuard<RecursiveMutex> lock_guard2(lazy_recursive_mutex.Pointer());
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}
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}
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TEST(MultipleMutexes) {
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Mutex mutex1;
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Mutex mutex2;
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Mutex mutex3;
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// Order 1
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mutex1.Lock();
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mutex2.Lock();
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mutex3.Lock();
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mutex1.Unlock();
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mutex2.Unlock();
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mutex3.Unlock();
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// Order 2
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mutex1.Lock();
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mutex2.Lock();
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mutex3.Lock();
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mutex3.Unlock();
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mutex2.Unlock();
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mutex1.Unlock();
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}
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TEST(MultipleRecursiveMutexes) {
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RecursiveMutex recursive_mutex1;
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RecursiveMutex recursive_mutex2;
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// Order 1
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recursive_mutex1.Lock();
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recursive_mutex2.Lock();
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CHECK(recursive_mutex1.TryLock());
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CHECK(recursive_mutex2.TryLock());
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recursive_mutex1.Unlock();
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recursive_mutex1.Unlock();
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recursive_mutex2.Unlock();
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recursive_mutex2.Unlock();
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// Order 2
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recursive_mutex1.Lock();
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CHECK(recursive_mutex1.TryLock());
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recursive_mutex2.Lock();
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CHECK(recursive_mutex2.TryLock());
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recursive_mutex2.Unlock();
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recursive_mutex1.Unlock();
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recursive_mutex2.Unlock();
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recursive_mutex1.Unlock();
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}
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