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/*
* Copyright (C) 2009 Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER 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.
*/
#ifndef QuotaTracker_h
#define QuotaTracker_h
#include "modules/ModulesExport.h"
#include "wtf/HashMap.h"
#include "wtf/ThreadingPrimitives.h"
#include "wtf/text/StringHash.h"
#include "wtf/text/WTFString.h"
namespace blink {
class SecurityOrigin;
class MODULES_EXPORT QuotaTracker {
USING_FAST_MALLOC(QuotaTracker);
WTF_MAKE_NONCOPYABLE(QuotaTracker);
public:
static QuotaTracker& instance();
void getDatabaseSizeAndSpaceAvailableToOrigin(
SecurityOrigin*,
const String& databaseName,
unsigned long long* databaseSize,
unsigned long long* spaceAvailable);
void updateDatabaseSize(SecurityOrigin*,
const String& databaseName,
unsigned long long databaseSize);
void updateSpaceAvailableToOrigin(SecurityOrigin*,
unsigned long long spaceAvailable);
void resetSpaceAvailableToOrigin(SecurityOrigin*);
private:
QuotaTracker() {}
typedef HashMap<String, unsigned long long> SizeMap;
SizeMap m_spaceAvailableToOrigins;
HashMap<String, SizeMap> m_databaseSizes;
Mutex m_dataGuard;
};
} // namespace blink
#endif // QuotaTracker_h
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