1 // Copyright (C) 2007-2012 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 // SALOME SALOMEDS : data structure of SALOME and sources of Salome data server
24 // File : SALOMEDS.hxx
25 // Author : Sergey ANIKIN
29 #ifndef SALOMEDS_HeaderFile
30 #define SALOMEDS_HeaderFile
32 #include "SALOMEDS_Defines.hxx"
34 #include <Utils_Mutex.hxx>
38 // PAL8065: san -- Implementation of convenient locker based on simple recursive
39 // mutex for POSIX platforms.
40 // This class is to protect SALOMEDS CORBA methods which deal with OCC calls from
41 // parallel access by several threads
42 // To protect some method, an instance of Locker class should be created
43 // on the stack at the beginning of guarded code:
47 class SALOMEDS_EXPORT Locker : public Utils_Locker
54 static Utils_Mutex MutexDS;
60 // Convenient functions to lock/unlock the global SALOMEDS mutex temporarily.
61 // In particular, "unlock-dosomething-lock" scheme should be used, when some non-SALOMEDS
62 // CORBA interface is called (component's engine), to avoid deadlocks in case of
63 // indirect recursion.