gecko-dev/dom/indexedDB/FileManager.h

105 строки
3.0 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=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 "mozilla/Attributes.h"
#include "mozilla/dom/quota/PersistenceType.h"
#include "nsDataHashtable.h"
#include "nsHashKeys.h"
#include "nsISupportsImpl.h"
class nsIFile;
class mozIStorageConnection;
namespace mozilla {
namespace dom {
namespace indexedDB {
class FileInfo;
// Implemented in ActorsParent.cpp.
class FileManager final {
friend class FileInfo;
typedef mozilla::dom::quota::PersistenceType PersistenceType;
PersistenceType mPersistenceType;
nsCString mGroup;
nsCString mOrigin;
nsString mDatabaseName;
nsString mDirectoryPath;
nsString mJournalDirectoryPath;
int64_t mLastFileId;
// Protected by IndexedDatabaseManager::FileMutex()
nsDataHashtable<nsUint64HashKey, FileInfo*> mFileInfos;
const bool mEnforcingQuota;
bool mInvalidated;
public:
static already_AddRefed<nsIFile> GetFileForId(nsIFile* aDirectory,
int64_t aId);
static already_AddRefed<nsIFile> GetCheckedFileForId(nsIFile* aDirectory,
int64_t aId);
static nsresult InitDirectory(nsIFile* aDirectory, nsIFile* aDatabaseFile,
PersistenceType aPersistenceType,
const nsACString& aGroup,
const nsACString& aOrigin,
uint32_t aTelemetryId);
static nsresult GetUsage(nsIFile* aDirectory, uint64_t* aUsage);
FileManager(PersistenceType aPersistenceType, const nsACString& aGroup,
const nsACString& aOrigin, const nsAString& aDatabaseName,
bool aEnforcingQuota);
PersistenceType Type() const { return mPersistenceType; }
const nsACString& Group() const { return mGroup; }
const nsACString& Origin() const { return mOrigin; }
const nsAString& DatabaseName() const { return mDatabaseName; }
bool EnforcingQuota() const { return mEnforcingQuota; }
bool Invalidated() const { return mInvalidated; }
nsresult Init(nsIFile* aDirectory, mozIStorageConnection* aConnection);
nsresult Invalidate();
already_AddRefed<nsIFile> GetDirectory();
already_AddRefed<nsIFile> GetCheckedDirectory();
already_AddRefed<nsIFile> GetJournalDirectory();
already_AddRefed<nsIFile> EnsureJournalDirectory();
already_AddRefed<FileInfo> GetFileInfo(int64_t aId);
already_AddRefed<FileInfo> GetNewFileInfo();
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FileManager)
private:
~FileManager() = default;
};
} // namespace indexedDB
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_indexeddb_filemanager_h__