text: /*
   * 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.
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 INC. OR
   * 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 "StorageSyncManager.h"
  
  #if ENABLE(DOM_STORAGE)
  
  #include "EventNames.h"
  #include "FileSystem.h"
  #include "Frame.h"
  #include "FrameTree.h"
  #include "LocalStorageTask.h"
  #include "LocalStorageThread.h"
  #include "Page.h"
  #include "PageGroup.h"
  #include "StorageAreaSync.h"
  #include <wtf/text/CString.h>
  #include <wtf/StdLibExtras.h>
  
  namespace WebCore {
  
  PassRefPtr<StorageSyncManager> StorageSyncManager::create(const String& path)
  {
      return adoptRef(new StorageSyncManager(path));
  }
  
  StorageSyncManager::StorageSyncManager(const String& path)
      : m_thread(LocalStorageThread::create())
      , m_path(path.crossThreadString())
  {
      ASSERT(isMainThread());
      ASSERT(!m_path.isEmpty());
      m_thread->start();
  }
  
  StorageSyncManager::~StorageSyncManager()
  {
      ASSERT(isMainThread());
      ASSERT(!m_thread);
  }
  
  // Called on a background thread.
  String StorageSyncManager::fullDatabaseFilename(const String& databaseIdentifier)
  {
      if (!makeAllDirectories(m_path)) {
          LOG_ERROR("Unabled to create LocalStorage database path %s", m_path.utf8().data());
          return String();
      }
  
      return pathByAppendingComponent(m_path, databaseIdentifier + ".localstorage");
  }
  
  void StorageSyncManager::close()
  {
      ASSERT(isMainThread());
  
      if (m_thread) {
          m_thread->terminate();
          m_thread.clear();
      }
  }
  
  bool StorageSyncManager::scheduleImport(PassRefPtr<StorageAreaSync> area)
  {
      ASSERT(isMainThread());
      ASSERT(m_thread);
      if (m_thread)
          m_thread->scheduleTask(LocalStorageTask::createImport(area.get()));
      return m_thread;
  }
  
  void StorageSyncManager::scheduleSync(PassRefPtr<StorageAreaSync> area)
  {
      ASSERT(isMainThread());
      ASSERT(m_thread);
      if (m_thread)
          m_thread->scheduleTask(LocalStorageTask::createSync(area.get()));
  }
  
  void StorageSyncManager::scheduleDeleteEmptyDatabase(PassRefPtr<StorageAreaSync> area)
  {
      ASSERT(isMainThread());
      ASSERT(m_thread);
      if (m_thread)
          m_thread->scheduleTask(LocalStorageTask::createDeleteEmptyDatabase(area.get()));
  }
  } // namespace WebCore
  
  #endif // ENABLE(DOM_STORAGE)
  