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 <utilities.h>
  37
  38 // IMPORTANT: include this file _after_ OCC ones, else OCC_CATCH_SIGNALS can be undefined!
  39
  40 #ifndef OCC_CATCH_SIGNALS
  41 #define OCC_CATCH_SIGNALS
  42 #endif
  43
  44 // Define macros to catch and convert some of possible exceptions into text or SALOME_Exception.
  45 // WARNING: SALOME::SALOME_Exception (CORBA exception) is not treated here; to care about it add
  46 //          #define SMY_OWN_CATCH catch ( SALOME::SALOME_Exception & e ) { do_something(e); }
  47 //          before #include<SMESH_TryCatch.hxx>
  48
  49
  50 //-------------------------------------------------------------------------------------
  51 #define SMESH_TRY                               \
  52   try {                                         \
  53   OCC_CATCH_SIGNALS                             \
  54
  55 //-------------------------------------------------------------------------------------
  56 // A macro to add a custom catch clause to SMESH_CATCH
  57 // To add your own catch close, define SMY_OWN_CATCH macro before including this file.
  58 #ifndef SMY_OWN_CATCH
  59 #define SMY_OWN_CATCH
  60 #endif
  61
  62 //-------------------------------------------------------------------------------------
  63 // A macro allowing to retrieve a result returned by onExceptionFun
  64 #define SMESH_CAUGHT
  65
  66 //-------------------------------------------------------------------------------------
  67 // A macro makes description of a caught exception and calls onExceptionFun(const char*).
  68 // Two onExceptionFun() are defined here: SMESH::throwSalomeEx() and SMESH::doNothing().
  69 // To add your own catch close, define SMY_OWN_CATCH macro before including this file.
  70
  71 #define SMESH_CATCH( onExceptionFun )                                   \
  72   }                                                                     \
  73   catch (Standard_Failure& ex)                                          \
  74   {                                                                     \
  75     SMESH_Comment text("OCCT Exception: ");                             \
  76     text << ": " << ex.DynamicType()->Name();                           \
  77     if ( ex.GetMessageString() && strlen( ex.GetMessageString() ))      \
  78       text << ": " << ex.GetMessageString();                            \
  79     SMESH_CAUGHT onExceptionFun( text );                                \
  80   }                                                                     \
  81   catch ( ::SMESH_ComputeError& ce )                                    \
  82   {                                                                     \
  83     if ( !ce.myComment.empty() )                                        \
  84       SMESH_CAUGHT onExceptionFun( ce.myComment.c_str() );              \
  85     else if ( ce.IsCommon() )                                           \
  86       SMESH_CAUGHT onExceptionFun( ce.CommonName().c_str() );           \
  87     else                                                                \
  88       SMESH_CAUGHT onExceptionFun                                       \
  89         (SMESH_Comment("SMESH_ComputeError: ") << ce.myName );          \
  90   }                                                                     \
  91   catch ( const std::exception& ex)                                     \
  92   {                                                                     \
  93     SMESH_CAUGHT onExceptionFun( ex.what() );                           \
  94   }                                                                     \
  95                                                                         \
  96   SMY_OWN_CATCH                                                         \
  97                                                                         \
  98   catch (...)                                                           \
  99   {                                                                     \
 100     SMESH_CAUGHT onExceptionFun("Unknown Exception caught");            \
 101   }
 102
 103 //-------------------------------------------------------------------------------------
 104 // Functions that can be used as an argument of SMESH_CATCH
 105
 106 namespace SMESH
 107 {
 108   SMESHUtils_EXPORT void throwSalomeEx(const char* txt);
 109   SMESHUtils_EXPORT void doNothing(const char* txt);
 110   SMESHUtils_EXPORT const char* returnError(const char* txt);
 111 }
 112
 113 #endif