src/SalomeApp/SalomeApp_ExceptionHandler.cxx

   1 #include "SalomeApp_ExceptionHandler.h"
   2
   3 #include <OSD.hxx>
   4
   5 #include <Standard_Failure.hxx>
   6 #include <Standard_ErrorHandler.hxx>
   7
   8 #include <stdexcept>
   9 #include <exception>
  10
  11 #include <qstring.h>
  12
  13 #include <CASCatch_CatchSignals.hxx>
  14 #include <CASCatch_ErrorHandler.hxx>
  15 #include <CASCatch_Failure.hxx>
  16
  17
  18 /*!Constructor. Initialize by \a floatSignal.*/
  19 SalomeApp_ExceptionHandler::SalomeApp_ExceptionHandler( const bool floatSignal )
  20 : SUIT_ExceptionHandler()
  21 {
  22   OSD::SetSignal( floatSignal );
  23 }
  24
  25 /*!Try to call SUIT_ExceptionHandler::internalHandle(o, e), catch if failure.*/
  26 bool SalomeApp_ExceptionHandler::handleSignals( QObject* o, QEvent* e )
  27 {
  28
  29   CASCatch_CatchSignals aCatchSignals;
  30   aCatchSignals.Activate();
  31
  32
  33   CASCatch_TRY {
  34     SUIT_ExceptionHandler::internalHandle( o, e );
  35   }
  36   CASCatch_CATCH(CASCatch_Failure) {
  37     aCatchSignals.Deactivate();
  38     Handle(CASCatch_Failure) aFail = CASCatch_Failure::Caught();
  39     throw std::runtime_error( aFail->GetError() );
  40   }
  41
  42   aCatchSignals.Deactivate();
  43   return true;
  44 }
  45
  46 #ifdef try
  47 #undef try
  48 #endif
  49
  50 #ifdef catch
  51 #undef catch
  52 #endif
  53
  54 /*!Try to call handleSignals( o, e ), catch and show error message.*/
  55 bool SalomeApp_ExceptionHandler::handle( QObject* o, QEvent* e )
  56 {
  57   bool res = false;
  58   QString title( "Fatal error" );
  59
  60   try {
  61     res = handleSignals( o, e );
  62   }
  63   catch( std::exception& ex )
  64   {
  65     showMessage( title, QString( ex.what() ) );
  66   }
  67   catch( Standard_Failure& e )
  68   {
  69     showMessage( title, QString( e.GetMessageString() ) );
  70   }
  71 #ifndef WNT
  72   catch(...)
  73   {
  74     showMessage( title, "Unknown Exception" );
  75   }
  76 #endif
  77
  78   return res;
  79 }
  80
  81 /*!Create new SUIT_ExceptionHandler*/
  82 extern "C" SALOMEAPP_EXPORT SUIT_ExceptionHandler* getExceptionHandler()
  83 {
  84   return new SalomeApp_ExceptionHandler( true );
  85 }