gecko-dev/dom/indexedDB/FileManager.h

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/* -*- 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) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* 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_filemanager_h__
#define mozilla_dom_indexeddb_filemanager_h__
#include "IndexedDatabase.h"
#include "nsIFile.h"
#include "nsILocalFile.h"
#include "nsIDOMFile.h"
#include "nsDataHashtable.h"
class mozIStorageConnection;
BEGIN_INDEXEDDB_NAMESPACE
class FileInfo;
class FileManager
{
friend class FileInfo;
public:
FileManager(const nsACString& aOrigin,
const nsAString& aDatabaseName)
: mOrigin(aOrigin), mDatabaseName(aDatabaseName), mLastFileId(0),
mLoaded(false), mInvalidated(false)
{ }
~FileManager()
{ }
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FileManager)
const nsACString& Origin() const
{
return mOrigin;
}
const nsAString& DatabaseName() const
{
return mDatabaseName;
}
bool Inited() const
{
return !mDirectoryPath.IsEmpty();
}
bool Loaded() const
{
return mLoaded;
}
bool Invalidated() const
{
return mInvalidated;
}
nsresult Init(nsIFile* aDirectory,
mozIStorageConnection* aConnection);
nsresult Load(mozIStorageConnection* aConnection);
nsresult Invalidate();
already_AddRefed<nsIFile> GetDirectory();
already_AddRefed<FileInfo> GetFileInfo(PRInt64 aId);
already_AddRefed<FileInfo> GetNewFileInfo();
static already_AddRefed<nsIFile> GetFileForId(nsIFile* aDirectory,
PRInt64 aId);
private:
nsCString mOrigin;
nsString mDatabaseName;
nsString mDirectoryPath;
PRInt64 mLastFileId;
// Protected by IndexedDatabaseManager::FileMutex()
nsDataHashtable<nsUint64HashKey, FileInfo*> mFileInfos;
bool mLoaded;
bool mInvalidated;
};
END_INDEXEDDB_NAMESPACE
#endif // mozilla_dom_indexeddb_filemanager_h__