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/*
* Copyright (C) 2011 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.
*/
#include "modules/webdatabase/QuotaTracker.h"
#include "platform/weborigin/SecurityOrigin.h"
#include "public/platform/Platform.h"
#include "public/platform/WebSecurityOrigin.h"
#include "wtf/StdLibExtras.h"
#include "wtf/Threading.h"
namespace blink {
QuotaTracker& QuotaTracker::instance() {
DEFINE_THREAD_SAFE_STATIC_LOCAL(QuotaTracker, tracker, new QuotaTracker);
return tracker;
}
void QuotaTracker::getDatabaseSizeAndSpaceAvailableToOrigin(
SecurityOrigin* origin,
const String& databaseName,
unsigned long long* databaseSize,
unsigned long long* spaceAvailable) {
// Extra scope to unlock prior to potentially calling Platform.
{
MutexLocker lockData(m_dataGuard);
ASSERT(m_databaseSizes.contains(origin->toRawString()));
HashMap<String, SizeMap>::const_iterator it =
m_databaseSizes.find(origin->toRawString());
ASSERT(it->value.contains(databaseName));
*databaseSize = it->value.get(databaseName);
if (m_spaceAvailableToOrigins.contains(origin->toRawString())) {
*spaceAvailable = m_spaceAvailableToOrigins.get(origin->toRawString());
return;
}
}
// The embedder hasn't pushed this value to us, so we pull it as needed.
*spaceAvailable = Platform::current()->databaseGetSpaceAvailableForOrigin(
WebSecurityOrigin(origin));
}
void QuotaTracker::updateDatabaseSize(SecurityOrigin* origin,
const String& databaseName,
unsigned long long databaseSize) {
MutexLocker lockData(m_dataGuard);
HashMap<String, SizeMap>::ValueType* it =
m_databaseSizes.add(origin->toRawString(), SizeMap()).storedValue;
it->value.set(databaseName, databaseSize);
}
void QuotaTracker::updateSpaceAvailableToOrigin(
SecurityOrigin* origin,
unsigned long long spaceAvailable) {
MutexLocker lockData(m_dataGuard);
m_spaceAvailableToOrigins.set(origin->toRawString(), spaceAvailable);
}
void QuotaTracker::resetSpaceAvailableToOrigin(SecurityOrigin* origin) {
MutexLocker lockData(m_dataGuard);
m_spaceAvailableToOrigins.remove(origin->toRawString());
}
} // namespace blink
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