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/*
* 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 "StorageNamespaceImpl.h"
#if ENABLE(DOM_STORAGE)
#include "SecurityOriginHash.h"
#include "StringHash.h"
#include "StorageAreaImpl.h"
#include "StorageMap.h"
#include "StorageSyncManager.h"
#include <wtf/StdLibExtras.h>
namespace WebCore {
typedef HashMap<String, StorageNamespace*> LocalStorageNamespaceMap;
static LocalStorageNamespaceMap& localStorageNamespaceMap()
{
DEFINE_STATIC_LOCAL(LocalStorageNamespaceMap, localStorageNamespaceMap, ());
return localStorageNamespaceMap;
}
PassRefPtr<StorageNamespace> StorageNamespaceImpl::localStorageNamespace(const String& path, unsigned quota)
{
const String lookupPath = path.isNull() ? String("") : path;
LocalStorageNamespaceMap::iterator it = localStorageNamespaceMap().find(lookupPath);
if (it == localStorageNamespaceMap().end()) {
RefPtr<StorageNamespace> storageNamespace = adoptRef(new StorageNamespaceImpl(LocalStorage, lookupPath, quota));
localStorageNamespaceMap().set(lookupPath, storageNamespace.get());
return storageNamespace.release();
}
return it->second;
}
PassRefPtr<StorageNamespace> StorageNamespaceImpl::sessionStorageNamespace()
{
return adoptRef(new StorageNamespaceImpl(SessionStorage, String(), StorageMap::noQuota));
}
StorageNamespaceImpl::StorageNamespaceImpl(StorageType storageType, const String& path, unsigned quota)
: m_storageType(storageType)
, m_path(path.crossThreadString())
, m_syncManager(0)
, m_quota(quota)
, m_isShutdown(false)
{
if (m_storageType == LocalStorage && !m_path.isEmpty())
m_syncManager = StorageSyncManager::create(m_path);
}
StorageNamespaceImpl::~StorageNamespaceImpl()
{
ASSERT(isMainThread());
if (m_storageType == LocalStorage) {
ASSERT(localStorageNamespaceMap().get(m_path) == this);
localStorageNamespaceMap().remove(m_path);
}
if (!m_isShutdown)
close();
}
PassRefPtr<StorageNamespace> StorageNamespaceImpl::copy()
{
ASSERT(isMainThread());
ASSERT(!m_isShutdown);
ASSERT(m_storageType == SessionStorage);
StorageNamespaceImpl* newNamespace = new StorageNamespaceImpl(m_storageType, m_path, m_quota);
StorageAreaMap::iterator end = m_storageAreaMap.end();
for (StorageAreaMap::iterator i = m_storageAreaMap.begin(); i != end; ++i)
newNamespace->m_storageAreaMap.set(i->first, i->second->copy());
return adoptRef(newNamespace);
}
PassRefPtr<StorageArea> StorageNamespaceImpl::storageArea(PassRefPtr<SecurityOrigin> prpOrigin)
{
ASSERT(isMainThread());
ASSERT(!m_isShutdown);
RefPtr<SecurityOrigin> origin = prpOrigin;
RefPtr<StorageAreaImpl> storageArea;
if (storageArea = m_storageAreaMap.get(origin))
return storageArea.release();
storageArea = StorageAreaImpl::create(m_storageType, origin, m_syncManager, m_quota);
m_storageAreaMap.set(origin.release(), storageArea);
return storageArea.release();
}
void StorageNamespaceImpl::close()
{
ASSERT(isMainThread());
ASSERT(!m_isShutdown);
// If we're session storage, we shouldn't need to do any work here.
if (m_storageType == SessionStorage) {
ASSERT(!m_syncManager);
return;
}
StorageAreaMap::iterator end = m_storageAreaMap.end();
for (StorageAreaMap::iterator it = m_storageAreaMap.begin(); it != end; ++it)
it->second->close();
if (m_syncManager)
m_syncManager->close();
m_isShutdown = true;
}
void StorageNamespaceImpl::unlock()
{
// Because there's a single event loop per-process, this is a no-op.
}
} // namespace WebCore
#endif // ENABLE(DOM_STORAGE)
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