src/SMESHUtils/SMESH_TryCatch.hxx

   1 // Copyright (C) 2007-2016  CEA/DEN, EDF R&D, OPEN CASCADE
   2 //
   3 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 //
   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, or (at your option) any later version.
  10 //
  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.
  15 //
  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
  19 //
  20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21 //
  22 // File      : SMESH_TryCatch.hxx
  23 // Created   : Mon Dec 17 15:43:38 2012
  24 // Author    : Edward AGAPOV (eap)
  25
  26 #ifndef __SMESH_TryCatch_HXX__
  27 #define __SMESH_TryCatch_HXX__
  28
  29 #include "SMESH_Comment.hxx"
  30 #include "SMESH_ComputeError.hxx"
  31 #include "SMESH_Utils.hxx"
  32
  33 #include <Utils_SALOME_Exception.hxx>
  34 #include <Standard_Failure.hxx>
  35 #include <Standard_ErrorHandler.hxx>
  36 #include <Basics_OCCTVersion.hxx>
  37 #include <utilities.h>
  38
  39 // IMPORTANT: include this file _after_ OCC ones, else OCC_CATCH_SIGNALS can be undefined!
  40
  41 #ifndef OCC_CATCH_SIGNALS
  42 #define OCC_CATCH_SIGNALS
  43 #endif
  44
  45 // Define macros to catch and convert some of possible exceptions into text or SALOME_Exception
  46
  47 //-------------------------------------------------------------------------------------
  48 #define SMESH_TRY                               \
  49   try {                                         \
  50   OCC_CATCH_SIGNALS                             \
  51
  52 //-------------------------------------------------------------------------------------
  53 // A macro to add a custom catch clause to SMESH_CATCH
  54 // To add your own catch close, define SMY_OWN_CATCH macro before including this file.
  55 #ifndef SMY_OWN_CATCH
  56 #define SMY_OWN_CATCH
  57 #endif
  58
  59 //-------------------------------------------------------------------------------------
  60 // A macro allowing to retrieve a result returned by onExceptionFun
  61 #define SMESH_CAUGHT
  62
  63 //-------------------------------------------------------------------------------------
  64 // A macro makes description of a caught exception and calls onExceptionFun(const char*).
  65 // Two onExceptionFun() are defined here: SMESH::throwSalomeEx() and SMESH::doNothing().
  66 // To add your own catch close, define SMY_OWN_CATCH macro before including this file.
  67
  68 #define SMESH_CATCH( onExceptionFun )                                   \
  69   }                                                                     \
  70   catch (Standard_Failure& ex)                                          \
  71   {                                                                     \
  72     SMESH_Comment text("OCCT Exception: ");                             \
  73     text << ": " << ex.DynamicType()->Name();                           \
  74     if ( ex.GetMessageString() && strlen( ex.GetMessageString() ))      \
  75       text << ": " << ex.GetMessageString();                            \
  76     SMESH_CAUGHT onExceptionFun( text );                                \
  77   }                                                                     \
  78   catch ( ::SMESH_ComputeError& ce )                                    \
  79   {                                                                     \
  80     if ( !ce.myComment.empty() )                                        \
  81       SMESH_CAUGHT onExceptionFun( ce.myComment.c_str() );              \
  82     else if ( ce.IsCommon() )                                           \
  83       SMESH_CAUGHT onExceptionFun( ce.CommonName().c_str() );           \
  84     else                                                                \
  85       SMESH_CAUGHT onExceptionFun                                       \
  86         (SMESH_Comment("SMESH_ComputeError: ") << ce.myName );          \
  87   }                                                                     \
  88   catch ( const std::exception& ex)                                     \
  89   {                                                                     \
  90     SMESH_CAUGHT onExceptionFun( ex.what() );                           \
  91   }                                                                     \
  92                                                                         \
  93   SMY_OWN_CATCH                                                         \
  94                                                                         \
  95   catch (...)                                                           \
  96   {                                                                     \
  97     SMESH_CAUGHT onExceptionFun("Unknown Exception caught");            \
  98   }
  99
 100 //-------------------------------------------------------------------------------------
 101 // Functions that can be used as an argument of SMESH_CATCH
 102
 103 namespace SMESH
 104 {
 105   SMESHUtils_EXPORT void throwSalomeEx(const char* txt);
 106   SMESHUtils_EXPORT void doNothing(const char* txt);
 107 }
 108
 109 #endif