indexed_db_factory.h revision a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7
1// Copyright (c) 2013 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_FACTORY_H_ 6#define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_FACTORY_H_ 7 8#include <map> 9#include <set> 10 11#include "base/basictypes.h" 12#include "base/files/file_path.h" 13#include "base/memory/ref_counted.h" 14#include "base/strings/string16.h" 15#include "content/browser/indexed_db/indexed_db_callbacks.h" 16#include "content/browser/indexed_db/indexed_db_database.h" 17#include "content/browser/indexed_db/indexed_db_database_callbacks.h" 18#include "content/common/content_export.h" 19#include "url/gurl.h" 20 21namespace content { 22 23class IndexedDBBackingStore; 24class IndexedDBContextImpl; 25 26class CONTENT_EXPORT IndexedDBFactory 27 : NON_EXPORTED_BASE(public base::RefCountedThreadSafe<IndexedDBFactory>) { 28 public: 29 explicit IndexedDBFactory(IndexedDBContextImpl* context); 30 31 // Notifications from weak pointers. 32 void ReleaseDatabase(const IndexedDBDatabase::Identifier& identifier, 33 const GURL& origin_url, 34 bool forcedClose); 35 36 void GetDatabaseNames(scoped_refptr<IndexedDBCallbacks> callbacks, 37 const GURL& origin_url, 38 const base::FilePath& data_directory); 39 void Open(const base::string16& name, 40 int64 version, 41 int64 transaction_id, 42 scoped_refptr<IndexedDBCallbacks> callbacks, 43 scoped_refptr<IndexedDBDatabaseCallbacks> database_callbacks, 44 const GURL& origin_url, 45 const base::FilePath& data_directory); 46 47 void DeleteDatabase(const base::string16& name, 48 scoped_refptr<IndexedDBCallbacks> callbacks, 49 const GURL& origin_url, 50 const base::FilePath& data_directory); 51 52 void HandleBackingStoreFailure(const GURL& origin_url); 53 54 // Iterates over all databases; for diagnostics only. 55 std::vector<IndexedDBDatabase*> GetOpenDatabasesForOrigin( 56 const GURL& origin_url) const; 57 58 bool IsBackingStoreOpenForTesting(const GURL& origin_url) const; 59 bool IsBackingStorePendingCloseForTesting(const GURL& origin_url) const; 60 61 // Called by IndexedDBContext after all connections are closed, to 62 // ensure the backing store closed immediately. 63 void ForceClose(const GURL& origin_url); 64 65 // Called by the IndexedDBContext destructor so the factory can do cleanup. 66 void ContextDestroyed(); 67 68 protected: 69 friend class base::RefCountedThreadSafe<IndexedDBFactory>; 70 71 virtual ~IndexedDBFactory(); 72 73 virtual scoped_refptr<IndexedDBBackingStore> OpenBackingStore( 74 const GURL& origin_url, 75 const base::FilePath& data_directory, 76 blink::WebIDBDataLoss* data_loss, 77 std::string* data_loss_reason, 78 bool* disk_full); 79 80 void ReleaseBackingStore(const GURL& origin_url, bool immediate); 81 void CloseBackingStore(const GURL& origin_url); 82 83 private: 84 // Called internally after a database is closed, with some delay. If this 85 // factory has the last reference, it will be released. 86 void MaybeCloseBackingStore(const GURL& origin_url); 87 bool HasLastBackingStoreReference(const GURL& origin_url) const; 88 89 IndexedDBContextImpl* context_; 90 91 typedef std::map<IndexedDBDatabase::Identifier, 92 scoped_refptr<IndexedDBDatabase> > IndexedDBDatabaseMap; 93 IndexedDBDatabaseMap database_map_; 94 95 typedef std::map<GURL, scoped_refptr<IndexedDBBackingStore> > 96 IndexedDBBackingStoreMap; 97 IndexedDBBackingStoreMap backing_store_map_; 98 99 std::set<scoped_refptr<IndexedDBBackingStore> > session_only_backing_stores_; 100}; 101 102} // namespace content 103 104#endif // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_FACTORY_H_ 105