diff options
Diffstat (limited to 'WebCore/platform/MessageQueue.h')
-rw-r--r-- | WebCore/platform/MessageQueue.h | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/WebCore/platform/MessageQueue.h b/WebCore/platform/MessageQueue.h deleted file mode 100644 index dd35449..0000000 --- a/WebCore/platform/MessageQueue.h +++ /dev/null @@ -1,115 +0,0 @@ -/* - * Copyright (C) 2008 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 MessageQueue_h -#define MessageQueue_h - -#include "Threading.h" -#include <wtf/Assertions.h> -#include <wtf/Deque.h> -#include <wtf/Noncopyable.h> - -namespace WebCore { - - template<typename DataType> - class MessageQueue : Noncopyable { - public: - MessageQueue() : m_killed(false) {} - - void append(const DataType&); - void prepend(const DataType&); - bool waitForMessage(DataType&); - bool tryGetMessage(DataType&); - void kill(); - bool killed() const { return m_killed; } - - private: - Mutex m_mutex; - ThreadCondition m_condition; - Deque<DataType> m_queue; - bool m_killed; - }; - - template<typename DataType> - inline void MessageQueue<DataType>::append(const DataType& message) - { - MutexLocker lock(m_mutex); - m_queue.append(message); - m_condition.signal(); - } - - template<typename DataType> - inline void MessageQueue<DataType>::prepend(const DataType& message) - { - MutexLocker lock(m_mutex); - m_queue.prepend(message); - m_condition.signal(); - } - - template<typename DataType> - inline bool MessageQueue<DataType>::waitForMessage(DataType& result) - { - MutexLocker lock(m_mutex); - if (m_killed) - return false; - - if (m_queue.isEmpty()) - m_condition.wait(m_mutex); - if (m_killed) - return false; - - ASSERT(!m_queue.isEmpty()); - result = m_queue.first(); - m_queue.removeFirst(); - return true; - } - - template<typename DataType> - inline bool MessageQueue<DataType>::tryGetMessage(DataType& result) - { - MutexLocker lock(m_mutex); - if (m_killed) - return false; - if (m_queue.isEmpty()) - return false; - - result = m_queue.first(); - m_queue.removeFirst(); - return true; - } - - template<typename DataType> - inline void MessageQueue<DataType>::kill() - { - MutexLocker lock(m_mutex); - m_killed = true; - m_condition.broadcast(); - } -} - -#endif // MessageQueue_h |