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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.
#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"
#include "sysc/utils/sc_iostream.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 )
if( m_pushed ) {
sc_module_name* smn = m_simc->get_object_manager()->pop_module_name();
if( this != smn ) {
if ( m_module_p ) m_module_p->end_module();
sc_module_name::operator const char*() const
return m_name;
} // 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 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.