sc_module_name.cpp

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  more contributor license agreements.  See the NOTICE file distributed
  with this work for additional information regarding copyright ownership.
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/*****************************************************************************

  sc_module_name.cpp -- An object used to help manage object names 
                        and hierarchy

  Original Author: Stan Y. Liao, Synopsys, Inc.

  CHANGE LOG AT THE END OF THE FILE
 *****************************************************************************/

#include <cstdlib>

#include "sysc/kernel/sc_kernel_ids.h"
#include "sysc/kernel/sc_module.h"
#include "sysc/kernel/sc_module_name.h"
#include "sysc/kernel/sc_object_manager.h"
#include "sysc/kernel/sc_simcontext.h"

namespace sc_core {

sc_module_name::sc_module_name( const char* name_ )
: m_name( name_ ),
  m_module_p( 0 ),
  m_next( 0 ),
  m_simc( sc_get_curr_simcontext() ),
  m_pushed( true )
{
    m_simc->get_object_manager()->push_module_name( this );
}

sc_module_name::sc_module_name( const sc_module_name& name_ )
: m_name( name_.m_name ),
  m_module_p( 0 ),
  m_next( 0 ),
  m_simc( name_.m_simc ),
  m_pushed( false )
{}

sc_module_name::~sc_module_name() noexcept(false)
{
    if( m_pushed ) {
        sc_module_name* smn = m_simc->get_object_manager()->pop_module_name();
        if( this != smn ) {
            SC_REPORT_ERROR( SC_ID_SC_MODULE_NAME_USE_, 0 );
        }

        if ( m_module_p )
            m_module_p->end_module();
    }
}

sc_module_name::operator const char*() const
{
    return m_name;
}


void sc_module_name::execute_initializers()
{
    for (auto& initializer_fn : m_initializer_fn_vec)
        initializer_fn();
    m_initializer_fn_vec.clear();
}

} // namespace sc_core

// $Log: sc_module_name.cpp,v $
// Revision 1.5  2011/08/26 20:46:10  acg
//  Andy Goodrich: moved the modification log to the end of the file to
//  eliminate source line number skew when check-ins are done.
//
// Revision 1.4  2011/02/18 20:27:14  acg
//  Andy Goodrich: Updated Copyrights.
//
// Revision 1.3  2011/02/13 21:47:37  acg
//  Andy Goodrich: update copyright notice.
//
// Revision 1.2  2008/05/22 17:06:26  acg
//  Andy Goodrich: updated copyright notice to include 2008.
//
// Revision 1.1.1.1  2006/12/15 20:20:05  acg
// SystemC 2.3
//
// Revision 1.4  2006/03/14 23:56:58  acg
//   Andy Goodrich: This fixes a bug when an exception is thrown in
//   sc_module::sc_module() for a dynamically allocated sc_module
//   object. We are calling sc_module::end_module() on a module that has
//   already been deleted. The scenario runs like this:
//
//   a) the sc_module constructor is entered
//   b) the exception is thrown
//   c) the exception processor deletes the storage for the sc_module
//   d) the stack is unrolled causing the sc_module_name instance to be deleted
//   e) ~sc_module_name() calls end_module() with its pointer to the sc_module
//   f) because the sc_module has been deleted its storage is corrupted,
//      either by linking it to a free space chain, or by reuse of some sort
//   g) the m_simc field is garbage
//   h) the m_object_manager field is also garbage
//   i) an exception occurs
//
//   This does not happen for automatic sc_module instances since the
//   storage for the module is not reclaimed its just part of the stack.
//
//   I am fixing this by having the destructor for sc_module clear the
//   module pointer in its sc_module_name instance. That cuts things at
//   step (e) above, since the pointer will be null if the module has
//   already been deleted. To make sure the module stack is okay, I call
//   end-module() in ~sc_module in the case where there is an
//   sc_module_name pointer lying around.
//
// Revision 1.3  2006/01/13 18:44:30  acg
// Added $Log to record CVS changes into the source.
//