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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef WEBKIT_BROWSER_FILEAPI_QUOTA_QUOTA_BACKEND_IMPL_H_
#define WEBKIT_BROWSER_FILEAPI_QUOTA_QUOTA_BACKEND_IMPL_H_
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "webkit/browser/fileapi/quota/quota_reservation_manager.h"
#include "webkit/browser/fileapi/sandbox_file_system_backend_delegate.h"
#include "webkit/browser/webkit_storage_browser_export.h"
#include "webkit/common/quota/quota_status_code.h"
namespace base {
class SequencedTaskRunner;
}
namespace quota {
class QuotaManagerProxy;
}
namespace fileapi {
class FileSystemUsageCache;
class ObfuscatedFileUtil;
// An instance of this class is owned by QuotaReservationManager.
class WEBKIT_STORAGE_BROWSER_EXPORT QuotaBackendImpl
: public QuotaReservationManager::QuotaBackend {
public:
typedef QuotaReservationManager::ReserveQuotaCallback
ReserveQuotaCallback;
QuotaBackendImpl(base::SequencedTaskRunner* file_task_runner,
ObfuscatedFileUtil* obfuscated_file_util,
FileSystemUsageCache* file_system_usage_cache,
quota::QuotaManagerProxy* quota_manager_proxy);
virtual ~QuotaBackendImpl();
// QuotaReservationManager::QuotaBackend overrides.
virtual void ReserveQuota(
const GURL& origin,
FileSystemType type,
int64 delta,
const ReserveQuotaCallback& callback) OVERRIDE;
virtual void ReleaseReservedQuota(
const GURL& origin,
FileSystemType type,
int64 size) OVERRIDE;
virtual void CommitQuotaUsage(
const GURL& origin,
FileSystemType type,
int64 delta) OVERRIDE;
virtual void IncrementDirtyCount(
const GURL& origin,
FileSystemType type) OVERRIDE;
virtual void DecrementDirtyCount(
const GURL& origin,
FileSystemType type) OVERRIDE;
private:
friend class QuotaBackendImplTest;
struct QuotaReservationInfo {
QuotaReservationInfo(const GURL& origin, FileSystemType type, int64 delta);
~QuotaReservationInfo();
GURL origin;
FileSystemType type;
int64 delta;
};
void DidGetUsageAndQuotaForReserveQuota(
const QuotaReservationInfo& info,
const ReserveQuotaCallback& callback,
quota::QuotaStatusCode status,
int64 usage,
int64 quota);
void ReserveQuotaInternal(
const QuotaReservationInfo& info);
base::File::Error GetUsageCachePath(
const GURL& origin,
FileSystemType type,
base::FilePath* usage_file_path);
scoped_refptr<base::SequencedTaskRunner> file_task_runner_;
// Owned by SandboxFileSystemBackendDelegate.
ObfuscatedFileUtil* obfuscated_file_util_;
FileSystemUsageCache* file_system_usage_cache_;
scoped_refptr<quota::QuotaManagerProxy> quota_manager_proxy_;
base::WeakPtrFactory<QuotaBackendImpl> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(QuotaBackendImpl);
};
} // namespace fileapi
#endif // WEBKIT_BROWSER_FILEAPI_QUOTA_QUOTA_BACKEND_IMPL_H_
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