gecko/dom/indexedDB/IndexedDatabaseManager.h

102 lines
3.4 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Indexed Database.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Ben Turner <bent.mozilla@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef mozilla_dom_indexeddb_indexeddatabasemanager_h__
#define mozilla_dom_indexeddb_indexeddatabasemanager_h__
#include "mozilla/dom/indexedDB/IndexedDatabase.h"
#include "nsIIndexedDatabaseManager.h"
#include "nsIObserver.h"
#include "nsClassHashtable.h"
#include "nsHashKeys.h"
#define INDEXEDDB_MANAGER_CONTRACTID \
"@mozilla.org/dom/indexeddb/manager;1"
class nsIRunnable;
BEGIN_INDEXEDDB_NAMESPACE
class IDBDatabase;
class IndexedDatabaseManager : public nsIIndexedDatabaseManager,
public nsIObserver
{
friend class IDBDatabase;
public:
// Returns an owning reference!
static IndexedDatabaseManager* GetOrCreateInstance();
// Returns a non-owning reference.
static IndexedDatabaseManager* GetInstance();
NS_DECL_ISUPPORTS
NS_DECL_NSIINDEXEDDATABASEMANAGER
NS_DECL_NSIOBSERVER
nsresult WaitForClearAndDispatch(const nsACString& aOrigin,
nsIRunnable* aRunnable);
private:
IndexedDatabaseManager();
~IndexedDatabaseManager();
bool RegisterDatabase(IDBDatabase* aDatabase);
void UnregisterDatabase(IDBDatabase* aDatabase);
struct OriginClearData
{
nsCString origin;
nsTArray<nsCOMPtr<nsIRunnable> > delayedRunnables;
};
// Maintains a list of live databases per origin.
nsClassHashtable<nsCStringHashKey, nsTArray<IDBDatabase*> > mLiveDatabases;
// Maintains a list of origins that are currently being cleared.
nsAutoTArray<OriginClearData, 1> mOriginClearData;
};
END_INDEXEDDB_NAMESPACE
#endif /* mozilla_dom_indexeddb_indexeddatabasemanager_h__ */