Back to index

salome-kernel  6.5.0
SALOMEDS.hxx
Go to the documentation of this file.
00001 // Copyright (C) 2007-2012  CEA/DEN, EDF R&D, OPEN CASCADE
00002 //
00003 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
00004 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
00005 //
00006 // This library is free software; you can redistribute it and/or
00007 // modify it under the terms of the GNU Lesser General Public
00008 // License as published by the Free Software Foundation; either
00009 // version 2.1 of the License.
00010 //
00011 // This library is distributed in the hope that it will be useful,
00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014 // Lesser General Public License for more details.
00015 //
00016 // You should have received a copy of the GNU Lesser General Public
00017 // License along with this library; if not, write to the Free Software
00018 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
00019 //
00020 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
00021 //
00022 
00023 //  SALOME SALOMEDS : data structure of SALOME and sources of Salome data server 
00024 //  File   : SALOMEDS.hxx
00025 //  Author : Sergey ANIKIN
00026 //  Module : SALOME
00027 //  $Header: /home/server/cvs/KERNEL/KERNEL_SRC/src/SALOMEDS/SALOMEDS.hxx,v 1.5.30.2.12.1 2012-04-12 14:05:20 vsr Exp $
00028 //
00029 #ifndef SALOMEDS_HeaderFile
00030 #define SALOMEDS_HeaderFile
00031 
00032 #include "SALOMEDS_Defines.hxx"
00033 
00034 #include <Utils_Mutex.hxx>
00035 
00036 namespace SALOMEDS
00037 {
00038   // PAL8065: san -- Implementation of convenient locker based on simple recursive 
00039   // mutex for POSIX platforms.
00040   // This class is to protect SALOMEDS CORBA methods which deal with OCC calls from 
00041   // parallel access by several threads
00042   // To protect some method, an instance of Locker class should be created
00043   // on the stack at the beginning of guarded code:
00044   //
00045   //    Locker lock;
00046   //
00047   class SALOMEDS_EXPORT Locker : public Utils_Locker
00048   {
00049   public:
00050     Locker();
00051     virtual ~Locker();
00052 
00053   private:
00054     static Utils_Mutex MutexDS;
00055 
00056     friend void lock();
00057     friend void unlock();
00058   };
00059 
00060   // Convenient functions to lock/unlock the global SALOMEDS mutex temporarily.
00061   // In particular, "unlock-dosomething-lock" scheme should be used, when some non-SALOMEDS
00062   // CORBA interface is called (component's engine), to avoid deadlocks in case of 
00063   // indirect recursion.
00064   void lock();
00065   void unlock();
00066 };
00067 
00068 #endif