1/* 2 * Copyright (C) 2008 Apple Inc. All Rights Reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef StorageThread_h 27#define StorageThread_h 28 29#include <wtf/Functional.h> 30#include <wtf/HashSet.h> 31#include <wtf/MessageQueue.h> 32#include <wtf/PassOwnPtr.h> 33#include <wtf/PassRefPtr.h> 34#include <wtf/Threading.h> 35 36namespace WebCore { 37 38class StorageAreaSync; 39class StorageTask; 40 41class StorageThread { 42 WTF_MAKE_NONCOPYABLE(StorageThread); WTF_MAKE_FAST_ALLOCATED; 43public: 44 static PassOwnPtr<StorageThread> create(); 45 ~StorageThread(); 46 47 bool start(); 48 void terminate(); 49 50 void dispatch(const Function<void()>&); 51 52 static void releaseFastMallocFreeMemoryInAllThreads(); 53 54private: 55 StorageThread(); 56 57 // Called on background thread. 58 static void threadEntryPointCallback(void*); 59 void threadEntryPoint(); 60 61 // Background thread part of the terminate procedure. 62 void performTerminate(); 63 64 ThreadIdentifier m_threadID; 65 MessageQueue<Function<void ()> > m_queue; 66}; 67 68} // namespace WebCore 69 70#endif // StorageThread_h 71