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// Copyright 2014 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 STORAGE_BROWSER_QUOTA_QUOTA_MANAGER_PROXY_H_
#define STORAGE_BROWSER_QUOTA_QUOTA_MANAGER_PROXY_H_
#include "base/basictypes.h"
#include "base/callback.h"
#include "base/files/file_path.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/sequenced_task_runner_helpers.h"
#include "storage/browser/quota/quota_callbacks.h"
#include "storage/browser/quota/quota_client.h"
#include "storage/browser/quota/quota_database.h"
#include "storage/browser/quota/quota_manager.h"
#include "storage/browser/quota/quota_task.h"
#include "storage/browser/quota/special_storage_policy.h"
#include "storage/browser/storage_browser_export.h"
namespace base {
class SequencedTaskRunner;
class SingleThreadTaskRunner;
}
namespace storage {
// The proxy may be called and finally released on any thread.
class STORAGE_EXPORT QuotaManagerProxy
: public base::RefCountedThreadSafe<QuotaManagerProxy> {
public:
typedef QuotaManager::GetUsageAndQuotaCallback
GetUsageAndQuotaCallback;
virtual void RegisterClient(QuotaClient* client);
virtual void NotifyStorageAccessed(QuotaClient::ID client_id,
const GURL& origin,
StorageType type);
virtual void NotifyStorageModified(QuotaClient::ID client_id,
const GURL& origin,
StorageType type,
int64 delta);
virtual void NotifyOriginInUse(const GURL& origin);
virtual void NotifyOriginNoLongerInUse(const GURL& origin);
virtual void SetUsageCacheEnabled(QuotaClient::ID client_id,
const GURL& origin,
StorageType type,
bool enabled);
virtual void GetUsageAndQuota(
base::SequencedTaskRunner* original_task_runner,
const GURL& origin,
StorageType type,
const GetUsageAndQuotaCallback& callback);
// This method may only be called on the IO thread.
// It may return NULL if the manager has already been deleted.
QuotaManager* quota_manager() const;
protected:
friend class QuotaManager;
friend class base::RefCountedThreadSafe<QuotaManagerProxy>;
QuotaManagerProxy(
QuotaManager* manager,
const scoped_refptr<base::SingleThreadTaskRunner>& io_thread);
virtual ~QuotaManagerProxy();
QuotaManager* manager_; // only accessed on the io thread
scoped_refptr<base::SingleThreadTaskRunner> io_thread_;
DISALLOW_COPY_AND_ASSIGN(QuotaManagerProxy);
};
} // namespace storage
#endif // STORAGE_BROWSER_QUOTA_QUOTA_MANAGER_PROXY_H_
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