gecko-dev/dom/indexedDB/FileManager.h

105 строки
2.4 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* 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 "nsIDOMFile.h"
#include "nsIFile.h"
#include "mozilla/dom/quota/StoragePrivilege.h"
#include "nsDataHashtable.h"
class mozIStorageConnection;
BEGIN_INDEXEDDB_NAMESPACE
class FileInfo;
class FileManager
{
friend class FileInfo;
typedef mozilla::dom::quota::StoragePrivilege StoragePrivilege;
public:
FileManager(const nsACString& aOrigin, StoragePrivilege aPrivilege,
const nsAString& aDatabaseName)
: mOrigin(aOrigin), mPrivilege(aPrivilege), mDatabaseName(aDatabaseName),
mLastFileId(0), mInvalidated(false)
{ }
~FileManager()
{ }
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FileManager)
const nsACString& Origin() const
{
return mOrigin;
}
const StoragePrivilege& Privilege() const
{
return mPrivilege;
}
const nsAString& DatabaseName() const
{
return mDatabaseName;
}
bool Invalidated() const
{
return mInvalidated;
}
nsresult Init(nsIFile* aDirectory,
mozIStorageConnection* aConnection);
nsresult Invalidate();
already_AddRefed<nsIFile> GetDirectory();
already_AddRefed<nsIFile> GetJournalDirectory();
already_AddRefed<nsIFile> EnsureJournalDirectory();
already_AddRefed<FileInfo> GetFileInfo(int64_t aId);
already_AddRefed<FileInfo> GetNewFileInfo();
static already_AddRefed<nsIFile> GetFileForId(nsIFile* aDirectory,
int64_t aId);
static nsresult InitDirectory(nsIFile* aDirectory,
nsIFile* aDatabaseFile,
const nsACString& aOrigin);
static nsresult GetUsage(nsIFile* aDirectory, uint64_t* aUsage);
private:
nsCString mOrigin;
StoragePrivilege mPrivilege;
nsString mDatabaseName;
nsString mDirectoryPath;
nsString mJournalDirectoryPath;
int64_t mLastFileId;
// Protected by IndexedDatabaseManager::FileMutex()
nsDataHashtable<nsUint64HashKey, FileInfo*> mFileInfos;
bool mInvalidated;
};
END_INDEXEDDB_NAMESPACE
#endif // mozilla_dom_indexeddb_filemanager_h__