LCOV - app.info - profile/dirserviceprovider/src/nsProfileLock.h

LCOV - code coverage report
| Current view: | directory - profile/dirserviceprovider/src - nsProfileLock.h (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 4 | 0 | 0.0 %
| Date: | 2012-04-21 | Functions: | 2 | 0 | 0.0 %

           1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
           2                 : /* ***** BEGIN LICENSE BLOCK *****
           3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
           4                 :  *
           5                 :  * The contents of this file are subject to the Mozilla Public License Version
           6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
           7                 :  * the License. You may obtain a copy of the License at
           8                 :  * http://www.mozilla.org/MPL/
           9                 :  *
          10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
          11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
          12                 :  * for the specific language governing rights and limitations under the
          13                 :  * License.
          14                 :  *
          15                 :  * The Original Code is mozilla.org code.
          16                 :  *
          17                 :  * The Initial Developer of the Original Code is
          18                 :  * Netscape Communications Corporation.
          19                 :  * Portions created by the Initial Developer are Copyright (C) 2002
          20                 :  * the Initial Developer. All Rights Reserved.
          21                 :  *
          22                 :  * Contributor(s):
          23                 :  *   Conrad Carlen <ccarlen@netscape.com>
          24                 :  *   Brendan Eich <brendan@mozilla.org>
          25                 :  *
          26                 :  * Alternatively, the contents of this file may be used under the terms of
          27                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
          28                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
          29                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
          30                 :  * of those above. If you wish to allow use of your version of this file only
          31                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
          32                 :  * use your version of this file under the terms of the MPL, indicate your
          33                 :  * decision by deleting the provisions above and replace them with the notice
          34                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
          35                 :  * the provisions above, a recipient may use your version of this file under
          36                 :  * the terms of any one of the MPL, the GPL or the LGPL.
          37                 :  *
          38                 :  * ***** END LICENSE BLOCK ***** */
          39                 :
          40                 : #ifndef __nsProfileLock_h___
          41                 : #define __nsProfileLock_h___
          42                 :
          43                 : #include "nsILocalFile.h"
          44                 :
          45                 : class nsIProfileUnlocker;
          46                 :
          47                 : #if defined (XP_WIN)
          48                 : #include <windows.h>
          49                 : #endif
          50                 :
          51                 : #if defined (XP_OS2)
          52                 : #define INCL_DOSERRORS
          53                 : #define INCL_DOSFILEMGR
          54                 : #include <os2.h>
          55                 : #endif
          56                 :
          57                 : #if defined (XP_UNIX)
          58                 : #include <signal.h>
          59                 : #include "prclist.h"
          60                 : #endif
          61                 :
          62                 : class nsProfileLock
          63                 : #if defined (XP_UNIX)
          64                 :   : public PRCList
          65                 : #endif
          66                 : {
          67                 : public:
          68                 :                             nsProfileLock();
          69                 :                             nsProfileLock(nsProfileLock& src);
          70                 :
          71                 :                             ~nsProfileLock();
          72                 :
          73                 :     nsProfileLock&          operator=(nsProfileLock& rhs);
          74                 :
          75                 :     /**
          76                 :      * Attempt to lock a profile directory.
          77                 :      *
          78                 :      * @param aProfileDir  [in] The profile directory to lock.
          79                 :      * @param aUnlocker    [out] Optional. This is only returned when locking
          80                 :      *                     fails with NS_ERROR_FILE_ACCESS_DENIED, and may not
          81                 :      *                     be returned at all.
          82                 :      * @throws NS_ERROR_FILE_ACCESS_DENIED if the profile is locked.
          83                 :      */
          84                 :     nsresult                Lock(nsILocalFile* aProfileDir, nsIProfileUnlocker* *aUnlocker);
          85                 :
          86                 :     /**
          87                 :      * Unlock a profile directory.  If you're unlocking the directory because
          88                 :      * the application is in the process of shutting down because of a fatal
          89                 :      * signal, set aFatalSignal to true.
          90                 :      */
          91                 :     nsresult                Unlock(bool aFatalSignal = false);
          92                 :
          93                 :     /**
          94                 :      * Get the modification time of a replaced profile lock, otherwise 0.
          95                 :      */
          96                 :     nsresult                GetReplacedLockTime(PRInt64* aResult);
          97                 :
          98                 : private:
          99                 :     bool                    mHaveLock;
         100                 :     PRInt64                 mReplacedLockTime;
         101                 :
         102                 : #if defined (XP_WIN)
         103                 :     HANDLE                  mLockFileHandle;
         104                 : #elif defined (XP_OS2)
         105                 :     LHANDLE                 mLockFileHandle;
         106                 : #elif defined (XP_UNIX)
         107                 :
         108                 :     struct RemovePidLockFilesExiting {
         109               0 :         RemovePidLockFilesExiting() {}
         110               0 :         ~RemovePidLockFilesExiting() {
         111               0 :             RemovePidLockFiles(false);
         112               0 :         }
         113                 :     };
         114                 :
         115                 :     static void             RemovePidLockFiles(bool aFatalSignal);
         116                 :     static void             FatalSignalHandler(int signo
         117                 : #ifdef SA_SIGINFO
         118                 :                                                , siginfo_t *info, void *context
         119                 : #endif
         120                 :                                                );
         121                 :     static PRCList          mPidLockList;
         122                 :
         123                 :     nsresult                LockWithFcntl(nsILocalFile *aLockFile);
         124                 :
         125                 :     /**
         126                 :      * @param aHaveFcntlLock if true, we've already acquired an fcntl lock so this
         127                 :      * lock is merely an "obsolete" lock to keep out old Firefoxes
         128                 :      */
         129                 :     nsresult                LockWithSymlink(nsILocalFile *aLockFile, bool aHaveFcntlLock);
         130                 :
         131                 :     char*                   mPidLockFileName;
         132                 :     int                     mLockFileDesc;
         133                 : #endif
         134                 :
         135                 : };
         136                 :
         137                 : #endif /* __nsProfileLock_h___ */

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