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Diffstat (limited to 'ext/systemc/src/sysc/communication/sc_event_finder.h')
| -rw-r--r-- | ext/systemc/src/sysc/communication/sc_event_finder.h | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/ext/systemc/src/sysc/communication/sc_event_finder.h b/ext/systemc/src/sysc/communication/sc_event_finder.h new file mode 100644 index 000000000..15205553f --- /dev/null +++ b/ext/systemc/src/sysc/communication/sc_event_finder.h @@ -0,0 +1,178 @@ +/***************************************************************************** + + Licensed to Accellera Systems Initiative Inc. (Accellera) under one or + more contributor license agreements. See the NOTICE file distributed + with this work for additional information regarding copyright ownership. + Accellera licenses this file to you under the Apache License, Version 2.0 + (the "License"); you may not use this file except in compliance with the + License. You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied. See the License for the specific language governing + permissions and limitations under the License. + + *****************************************************************************/ + +/***************************************************************************** + + sc_event_finder.h -- + + Original Author: Martin Janssen, Synopsys, Inc. + Stan Y. Liao, Synopsys, Inc., 2001-05-21 + + CHANGE LOG IS AT THE END OF THE FILE + *****************************************************************************/ + +#ifndef SC_EVENT_FINDER +#define SC_EVENT_FINDER + + +#include "sysc/communication/sc_port.h" + +namespace sc_core { + +// ---------------------------------------------------------------------------- +// CLASS : sc_event_finder +// +// Event finder base class. +// ---------------------------------------------------------------------------- + +class sc_event_finder +{ + friend class sc_simcontext; + +public: + + const sc_port_base& port() const + { return m_port; } + + // destructor (does nothing) + virtual ~sc_event_finder(); + + virtual const sc_event& find_event( sc_interface* if_p = 0 ) const = 0; + +protected: + + // constructor + sc_event_finder( const sc_port_base& ); + + // error reporting + void report_error( const char* id, const char* add_msg = 0 ) const; + + +private: + const sc_port_base& m_port; // port providing the event. + +private: + + // disabled + sc_event_finder(); + sc_event_finder( const sc_event_finder& ); + sc_event_finder& operator = ( const sc_event_finder& ); +}; + + +// ---------------------------------------------------------------------------- +// CLASS : sc_event_finder_t<IF> +// +// Interface specific event finder class. +// ---------------------------------------------------------------------------- + +template <class IF> +class sc_event_finder_t +: public sc_event_finder +{ +public: + + // constructor + + sc_event_finder_t( const sc_port_base& port_, + const sc_event& (IF::*event_method_) () const ) + : sc_event_finder( port_ ), m_event_method( event_method_ ) + {} + + // destructor (does nothing) + + virtual ~sc_event_finder_t() + {} + + virtual const sc_event& find_event( sc_interface* if_p = 0 ) const; + +private: + + const sc_event& (IF::*m_event_method) () const; + +private: + + // disabled + sc_event_finder_t(); + sc_event_finder_t( const sc_event_finder_t<IF>& ); + sc_event_finder_t<IF>& operator = ( const sc_event_finder_t<IF>& ); +}; + + +// IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII + +template <class IF> +inline +const sc_event& +sc_event_finder_t<IF>::find_event( sc_interface* if_p ) const +{ + const IF* iface = ( if_p ) ? DCAST<const IF*>( if_p ) : + DCAST<const IF*>( port().get_interface() ); + if( iface == 0 ) { + report_error( SC_ID_FIND_EVENT_, "port is not bound" ); + } + return (CCAST<IF*>( iface )->*m_event_method) (); +} + +} // namespace sc_core + +//$Log: sc_event_finder.h,v $ +//Revision 1.3 2011/08/26 20:45:39 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 1.2 2011/02/18 20:23:45 acg +// Andy Goodrich: Copyright update. +// +//Revision 1.1.1.1 2006/12/15 20:20:04 acg +//SystemC 2.3 +// +//Revision 1.4 2006/02/02 23:42:37 acg +// Andy Goodrich: implemented a much better fix to the sc_event_finder +// proliferation problem. This new version allocates only a single event +// finder for each port for each type of event, e.g., pos(), neg(), and +// value_change(). The event finder persists as long as the port does, +// which is what the LRM dictates. Because only a single instance is +// allocated for each event type per port there is not a potential +// explosion of storage as was true in the 2.0.1/2.1 versions. +// +//Revision 1.3 2006/02/02 20:43:09 acg +// Andy Goodrich: Added an existence linked list to sc_event_finder so that +// the dynamically allocated instances can be freed after port binding +// completes. This replaces the individual deletions in ~sc_bind_ef, as these +// caused an exception if an sc_event_finder instance was used more than +// once, due to a double freeing of the instance. +// +//Revision 1.2 2006/01/03 23:18:26 acg +//Changed copyright to include 2006. +// +//Revision 1.1.1.1 2005/12/19 23:16:43 acg +//First check in of SystemC 2.1 into its own archive. +// +//Revision 1.10 2005/09/15 23:01:51 acg +//Added std:: prefix to appropriate methods and types to get around +//issues with the Edison Front End. +// +//Revision 1.9 2005/06/10 22:43:55 acg +//Added CVS change log annotation. +// + +#endif + +// Taf! |