forked from mirrors/gecko-dev
104 lines
3.5 KiB
C++
104 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef DOM_INDEXEDDB_DATABASEFILEMANAGER_H_
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#define DOM_INDEXEDDB_DATABASEFILEMANAGER_H_
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#include "FileInfoManager.h"
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#include "mozilla/dom/quota/CommonMetadata.h"
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#include "mozilla/dom/quota/PersistenceType.h"
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#include "mozilla/dom/quota/UsageInfo.h"
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#include "mozilla/InitializedOnce.h"
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class nsIFile;
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class mozIStorageConnection;
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namespace mozilla::dom::indexedDB {
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// Implemented in ActorsParent.cpp.
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class DatabaseFileManager final
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: public FileInfoManager<DatabaseFileManager>,
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public AtomicSafeRefCounted<DatabaseFileManager> {
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using PersistenceType = mozilla::dom::quota::PersistenceType;
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using FileInfoManager<DatabaseFileManager>::MutexType;
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const PersistenceType mPersistenceType;
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const quota::OriginMetadata mOriginMetadata;
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const nsString mDatabaseName;
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LazyInitializedOnce<const nsString> mDirectoryPath;
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LazyInitializedOnce<const nsString> mJournalDirectoryPath;
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const bool mEnforcingQuota;
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// Lock protecting DatabaseFileManager.mFileInfos.
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// It's s also used to atomically update DatabaseFileInfo.mRefCnt and
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// DatabaseFileInfo.mDBRefCnt
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static MutexType sMutex;
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public:
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[[nodiscard]] static nsCOMPtr<nsIFile> GetFileForId(nsIFile* aDirectory,
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int64_t aId);
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[[nodiscard]] static nsCOMPtr<nsIFile> GetCheckedFileForId(
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nsIFile* aDirectory, int64_t aId);
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static nsresult InitDirectory(nsIFile& aDirectory, nsIFile& aDatabaseFile,
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const nsACString& aOrigin,
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uint32_t aTelemetryId);
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template <typename KnownDirEntryOp, typename UnknownDirEntryOp>
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static Result<Ok, nsresult> TraverseFiles(
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nsIFile& aDirectory, KnownDirEntryOp&& aKnownDirEntryOp,
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UnknownDirEntryOp&& aUnknownDirEntryOp);
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static Result<quota::FileUsageType, nsresult> GetUsage(nsIFile* aDirectory);
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DatabaseFileManager(PersistenceType aPersistenceType,
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const quota::OriginMetadata& aOriginMetadata,
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const nsAString& aDatabaseName, bool aEnforcingQuota);
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PersistenceType Type() const { return mPersistenceType; }
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const quota::OriginMetadata& OriginMetadata() const {
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return mOriginMetadata;
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}
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const nsACString& Origin() const { return mOriginMetadata.mOrigin; }
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const nsAString& DatabaseName() const { return mDatabaseName; }
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bool EnforcingQuota() const { return mEnforcingQuota; }
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nsresult Init(nsIFile* aDirectory, mozIStorageConnection& aConnection);
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[[nodiscard]] nsCOMPtr<nsIFile> GetDirectory();
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[[nodiscard]] nsCOMPtr<nsIFile> GetCheckedDirectory();
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[[nodiscard]] nsCOMPtr<nsIFile> GetJournalDirectory();
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[[nodiscard]] nsCOMPtr<nsIFile> EnsureJournalDirectory();
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[[nodiscard]] nsresult SyncDeleteFile(int64_t aId);
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// XXX When getting rid of FileHelper, this method should be removed/made
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// private.
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[[nodiscard]] nsresult SyncDeleteFile(nsIFile& aFile,
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nsIFile& aJournalFile) const;
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[[nodiscard]] nsresult AsyncDeleteFile(int64_t aFileId);
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MOZ_DECLARE_REFCOUNTED_TYPENAME(DatabaseFileManager)
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static StaticMutex& Mutex() { return sMutex; }
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~DatabaseFileManager() = default;
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};
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} // namespace mozilla::dom::indexedDB
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#endif // DOM_INDEXEDDB_DATABASEFILEMANAGER_H_
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