/* * Copyright (C) 2007 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef Threading_h #define Threading_h #include <wtf/Noncopyable.h> #include <pthread.h> namespace WebCore { class ThreadCondition; class Mutex : Noncopyable { friend class ThreadCondition; public: Mutex() { pthread_mutex_init(&m_mutex, NULL); } ~Mutex() { pthread_mutex_destroy(&m_mutex); } int lock() { return pthread_mutex_lock(&m_mutex);} int tryLock() { return pthread_mutex_trylock(&m_mutex); } int unlock() { return pthread_mutex_unlock(&m_mutex); } private: pthread_mutex_t m_mutex; }; class MutexLocker : Noncopyable { public: MutexLocker(Mutex& mutex) : m_mutex(mutex) { m_mutex.lock(); } ~MutexLocker() { m_mutex.unlock(); } private: Mutex& m_mutex; }; class ThreadCondition : Noncopyable { public: ThreadCondition() { pthread_cond_init(&m_condition, NULL); } ~ThreadCondition() { pthread_cond_destroy(&m_condition); } int wait(Mutex& mutex) { return pthread_cond_wait(&m_condition, &mutex.m_mutex); } int signal() { return pthread_cond_signal(&m_condition); } int broadcast() { return pthread_cond_broadcast(&m_condition); } private: pthread_cond_t m_condition; }; void callOnMainThread(void (*)()); #if PLATFORM(WIN) void initializeThreading(); #else inline void initializeThreading() { } #endif } // namespace WebCore #endif // Threading_h