sc_except.cpp revision 12027 
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19
20/*****************************************************************************
21
22  sc_except.cpp -- kill/reset exception handling
23
24  Original Author: Philipp A. Hartmann, OFFIS
25
26 CHANGE LOG APPEARS AT THE END OF THE FILE
27 *****************************************************************************/
28
29#include "sysc/kernel/sc_cmnhdr.h"
30//
31#include "sysc/kernel/sc_except.h"
32#include "sysc/kernel/sc_process.h"
33//
34#include "sysc/utils/sc_report.h"
35
36namespace sc_core {
37
38sc_unwind_exception::sc_unwind_exception( sc_process_b* proc_p, bool is_reset )
39  : m_proc_p(proc_p), m_is_reset( is_reset )
40{
41  sc_assert( m_proc_p );
42  m_proc_p->start_unwinding();
43}
44
45bool
46sc_unwind_exception::active() const
47{
48  return m_proc_p && m_proc_p->is_unwinding();
49}
50
51void
52sc_unwind_exception::clear() const
53{
54  sc_assert( m_proc_p );
55  m_proc_p->clear_unwinding();
56}
57
58const char*
59sc_unwind_exception::what() const throw()
60{
61  return ( m_is_reset ) ? "RESET" : "KILL";
62}
63
64sc_unwind_exception::~sc_unwind_exception() throw()
65{
66  if( active() ) {
67      // can't throw an exception, since we're already throwing
68      // -> abort instead
69      SC_REPORT_FATAL( SC_ID_RETHROW_UNWINDING_, m_proc_p->name() );
70  }
71}
72
73// handle and translate uncaught exceptions here
74//
75// These exceptions can either escape from sc_main() directly,
76// indirectly from an SC_METHOD(), or are thrown from within
77// an SC_(C)THREAD()
78//
79// returns a pointer to a dynamically allocated sc_report object,
80// containing the caught message
81
82sc_report*
83sc_handle_exception()
84{
85    try {
86
87        // re-throw exception here
88        try { throw; }
89
90        catch( sc_report & ) // to be on the safe side
91        {
92            throw; // continue
93        }
94        catch( sc_unwind_exception const & )
95        {
96            sc_assert( false && "Unhandled kill/reset, should never happen" );
97        }
98        catch( std::exception const & x )
99        {
100            SC_REPORT_ERROR( SC_ID_SIMULATION_UNCAUGHT_EXCEPTION_, x.what() );
101        }
102        catch( char const * x )
103        {
104            SC_REPORT_ERROR( SC_ID_SIMULATION_UNCAUGHT_EXCEPTION_, x );
105        }
106        catch( ... )
107        {
108            SC_REPORT_ERROR( SC_ID_SIMULATION_UNCAUGHT_EXCEPTION_,
109                             "UNKNOWN EXCEPTION" );
110        }
111    }
112    // everything is an sc_report now
113    catch( sc_report & rpt )
114    {
115        sc_report* rpt_p = new sc_report;
116        rpt_p->swap( rpt );
117        return rpt_p;
118    }
119    return 0;
120}
121
122} // namespace sc_core
123
124// $Log: sc_except.cpp,v $
125// Revision 1.4  2011/08/26 20:46:09  acg
126//  Andy Goodrich: moved the modification log to the end of the file to
127//  eliminate source line number skew when check-ins are done.
128//
129// Revision 1.3  2011/05/09 04:07:48  acg
130//  Philipp A. Hartmann:
131//    (1) Restore hierarchy in all phase callbacks.
132//    (2) Ensure calls to before_end_of_elaboration.
133//
134// Revision 1.2  2011/02/13 21:47:37  acg
135//  Andy Goodrich: update copyright notice.
136//
137// Revision 1.1  2011/02/10 22:47:38  acg
138//  Andy Goodrich: first check in of Philipp A. Hartmann's new exception
139//  processing code.
140//
141
142// Taf!
143