gecko-dev/dom/indexedDB/FileManager.h

96 строки
2.0 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_indexeddb_filemanager_h__
#define mozilla_dom_indexeddb_filemanager_h__
#include "IndexedDatabase.h"
#include "nsIFile.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__