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// Copyright (c) 2011 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_QUOTA_QUOTA_DATABASE_H_
#define WEBKIT_QUOTA_QUOTA_DATABASE_H_
#include <map>
#include "base/basictypes.h"
#include "base/file_path.h"
#include "base/gtest_prod_util.h"
#include "base/scoped_ptr.h"
#include "base/time.h"
namespace sql {
class Connection;
class MetaTable;
class Statement;
}
class GURL;
namespace quota {
// TODO(kinuko): put this in a separated header file when we have more modules.
enum StorageType {
kStorageTypeUnknown,
kStorageTypeTemporary,
kStorageTypePersistent,
};
// All the methods of this class must run on the DB thread.
class QuotaDatabase {
public:
explicit QuotaDatabase(const FilePath& path);
~QuotaDatabase();
void CloseConnection();
bool GetOriginQuota(const GURL& origin, StorageType type, int64* quota);
bool SetOriginQuota(const GURL& origin, StorageType type, int64 quota);
bool SetOriginLastAccessTime(const GURL& origin, StorageType type,
base::Time last_access_time);
bool DeleteStorageInfo(const GURL& origin, StorageType type);
bool GetGlobalQuota(StorageType type, int64* quota);
bool SetGlobalQuota(StorageType type, int64 quota);
// Return least recently used origins whose used_count is <=
// |max_used_count| up to |num_origins_limit|. If |max_used_count| is -1,
// it just returns LRU storages regardless of the used_count value.
// |num_origins_limit| must be > 0.
bool GetLRUOrigins(StorageType type, std::vector<GURL>* origins,
int max_used_count, int num_origins_limit);
private:
struct StorageInfoRecord;
bool FindOrigin(const GURL& origin_url, int64* origin_rowid);
bool InsertOrigin(const GURL& origin_url, int64* origin_rowid);
bool FindStorageInfo(int64 origin_rowid, StorageType type,
StorageInfoRecord* record);
bool FindStorageInfo(const GURL& origin, StorageType type,
StorageInfoRecord* record);
bool InsertStorageInfo(const StorageInfoRecord& record);
bool LazyOpen(bool create_if_needed);
bool EnsureDatabaseVersion();
bool CreateSchema();
bool ResetSchema();
FilePath db_file_path_;
scoped_ptr<sql::Connection> db_;
scoped_ptr<sql::MetaTable> meta_table_;
bool is_recreating_;
bool is_disabled_;
FRIEND_TEST_ALL_PREFIXES(QuotaDatabaseTest, LazyOpen);
FRIEND_TEST_ALL_PREFIXES(QuotaDatabaseTest, OriginQuota);
FRIEND_TEST_ALL_PREFIXES(QuotaDatabaseTest, GlobalQuota);
FRIEND_TEST_ALL_PREFIXES(QuotaDatabaseTest, OriginLastAccessTimeLRU);
DISALLOW_COPY_AND_ASSIGN(QuotaDatabase);
};
} // namespace quota
#endif // WEBKIT_QUOTA_QUOTA_DATABASE_H_
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