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Diffstat (limited to 'WebCore/storage/DatabaseThread.cpp')
-rw-r--r-- | WebCore/storage/DatabaseThread.cpp | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/WebCore/storage/DatabaseThread.cpp b/WebCore/storage/DatabaseThread.cpp deleted file mode 100644 index 7eeed9b..0000000 --- a/WebCore/storage/DatabaseThread.cpp +++ /dev/null @@ -1,130 +0,0 @@ -/* - * Copyright (C) 2007, 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. - */ -#include "config.h" -#include "DatabaseThread.h" - -#include "AutodrainedPool.h" -#include "Database.h" -#include "DatabaseTask.h" -#include "Logging.h" - -namespace WebCore { - -DatabaseThread::DatabaseThread(Document* document) - : m_threadID(0) -{ - m_selfRef = this; -} - -DatabaseThread::~DatabaseThread() -{ - // FIXME: Any cleanup required here? Since the thread deletes itself after running its detached course, I don't think so. Lets be sure. -} - -bool DatabaseThread::start() -{ - if (m_threadID) - return true; - - m_threadID = createThread(DatabaseThread::databaseThreadStart, this, "WebCore::Database"); - - return m_threadID; -} - -void DatabaseThread::requestTermination() -{ - LOG(StorageAPI, "DatabaseThread %p was asked to terminate\n", this); - m_queue.kill(); -} - -bool DatabaseThread::terminationRequested() const -{ - return m_queue.killed(); -} - -void* DatabaseThread::databaseThreadStart(void* vDatabaseThread) -{ - DatabaseThread* dbThread = static_cast<DatabaseThread*>(vDatabaseThread); - return dbThread->databaseThread(); -} - -void* DatabaseThread::databaseThread() -{ - LOG(StorageAPI, "Starting DatabaseThread %p", this); - - AutodrainedPool pool; - while (true) { - RefPtr<DatabaseTask> task; - if (!m_queue.waitForMessage(task)) - break; - - task->performTask(); - - pool.cycle(); - } - - LOG(StorageAPI, "About to detach thread %i and clear the ref to DatabaseThread %p, which currently has %i ref(s)", m_threadID, this, refCount()); - - // Detach the thread so its resources are no longer of any concern to anyone else - detachThread(m_threadID); - - // Clear the self refptr, possibly resulting in deletion - m_selfRef = 0; - - return 0; -} - -void DatabaseThread::scheduleTask(PassRefPtr<DatabaseTask> task) -{ - m_queue.append(task); -} - -void DatabaseThread::scheduleImmediateTask(PassRefPtr<DatabaseTask> task) -{ - m_queue.prepend(task); -} - -void DatabaseThread::unscheduleDatabaseTasks(Database* database) -{ - // Note that the thread loop is running, so some tasks for the database - // may still be executed. This is unavoidable. - - Deque<RefPtr<DatabaseTask> > filteredReverseQueue; - RefPtr<DatabaseTask> task; - while (m_queue.tryGetMessage(task)) { - if (task->database() != database) - filteredReverseQueue.append(task); - } - - while (!filteredReverseQueue.isEmpty()) { - m_queue.append(filteredReverseQueue.first()); - filteredReverseQueue.removeFirst(); - } -} - -} // namespace WebCore |