The Tor Browser: dom/indexedDB/FileManager.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* vim: set ts=2 et sw=2 tw=80: */

     3 /* This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 #ifndef mozilla_dom_indexeddb_filemanager_h__

     8 #define mozilla_dom_indexeddb_filemanager_h__

    10 #include "IndexedDatabase.h"

    12 #include "nsIDOMFile.h"

    13 #include "nsIFile.h"

    15 #include "mozilla/dom/quota/PersistenceType.h"

    16 #include "mozilla/dom/quota/StoragePrivilege.h"

    17 #include "nsDataHashtable.h"

    19 class mozIStorageConnection;

    21 BEGIN_INDEXEDDB_NAMESPACE

    23 class FileInfo;

    25 class FileManager MOZ_FINAL

    26 {

    27   friend class FileInfo;

    29   typedef mozilla::dom::quota::PersistenceType PersistenceType;

    30   typedef mozilla::dom::quota::StoragePrivilege StoragePrivilege;

    32 public:

    33   FileManager(PersistenceType aPersistenceType, const nsACString& aGroup,

    34               const nsACString& aOrigin, StoragePrivilege aPrivilege,

    35               const nsAString& aDatabaseName)

    36   : mPersistenceType(aPersistenceType), mGroup(aGroup), mOrigin(aOrigin),

    37     mPrivilege(aPrivilege), mDatabaseName(aDatabaseName), mLastFileId(0),

    38     mInvalidated(false)

    39   { }

    41   NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FileManager)

    43   PersistenceType Type()

    44   {

    45     return mPersistenceType;

    46   }

    48   const nsACString& Group() const

    49   {

    50     return mGroup;

    51   }

    53   const nsACString& Origin() const

    54   {

    55     return mOrigin;

    56   }

    58   const StoragePrivilege& Privilege() const

    59   {

    60     return mPrivilege;

    61   }

    63   const nsAString& DatabaseName() const

    64   {

    65     return mDatabaseName;

    66   }

    68   bool Invalidated() const

    69   {

    70     return mInvalidated;

    71   }

    73   nsresult Init(nsIFile* aDirectory,

    74                 mozIStorageConnection* aConnection);

    76   nsresult Invalidate();

    78   already_AddRefed<nsIFile> GetDirectory();

    80   already_AddRefed<nsIFile> GetJournalDirectory();

    82   already_AddRefed<nsIFile> EnsureJournalDirectory();

    84   already_AddRefed<FileInfo> GetFileInfo(int64_t aId);

    86   already_AddRefed<FileInfo> GetNewFileInfo();

    88   static already_AddRefed<nsIFile> GetFileForId(nsIFile* aDirectory,

    89                                                 int64_t aId);

    91   static nsresult InitDirectory(nsIFile* aDirectory,

    92                                 nsIFile* aDatabaseFile,

    93                                 PersistenceType aPersistenceType,

    94                                 const nsACString& aGroup,

    95                                 const nsACString& aOrigin);

    97   static nsresult GetUsage(nsIFile* aDirectory, uint64_t* aUsage);

    99 private:

   100   // Private destructor, to discourage deletion outside of Release():

   101   ~FileManager()

   102   {

   103   }

   105   PersistenceType mPersistenceType;

   106   nsCString mGroup;

   107   nsCString mOrigin;

   108   StoragePrivilege mPrivilege;

   109   nsString mDatabaseName;

   111   nsString mDirectoryPath;

   112   nsString mJournalDirectoryPath;

   114   int64_t mLastFileId;

   116   // Protected by IndexedDatabaseManager::FileMutex()

   117   nsDataHashtable<nsUint64HashKey, FileInfo*> mFileInfos;

   119   bool mInvalidated;

   120 };

   122 END_INDEXEDDB_NAMESPACE

   124 #endif // mozilla_dom_indexeddb_filemanager_h__

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