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Diffstat (limited to 'ext/systemc/src/sysc/kernel/sc_join.h')
| -rw-r--r-- | ext/systemc/src/sysc/kernel/sc_join.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/ext/systemc/src/sysc/kernel/sc_join.h b/ext/systemc/src/sysc/kernel/sc_join.h new file mode 100644 index 000000000..e240f51a2 --- /dev/null +++ b/ext/systemc/src/sysc/kernel/sc_join.h @@ -0,0 +1,136 @@ +/***************************************************************************** + + 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_join.h -- Join Process Synchronization Definition + + Original Author: Andy Goodrich, Forte Design Systems, 5 May 2003 + + CHANGE LOG AT THE END OF THE FILE + *****************************************************************************/ + +// $Log: sc_join.h,v $ +// Revision 1.8 2011/08/26 21:45:00 acg +// Andy Goodrich: fix internal event naming. +// +// Revision 1.7 2011/08/26 20:46:09 acg +// Andy Goodrich: moved the modification log to the end of the file to +// eliminate source line number skew when check-ins are done. +// + +#ifndef SC_JOIN_H +#define SC_JOIN_H + +#include "sysc/kernel/sc_process.h" +#include "sysc/kernel/sc_wait.h" + +namespace sc_core { + +//============================================================================== +// CLASS sc_join +// +// This class provides a way of waiting for a set of threads to complete their +// execution. The threads whose completion is to be monitored are registered, +// and upon their completion an event notification will occur. +//============================================================================== +class sc_join : public sc_process_monitor { + friend class sc_process_b; + friend class sc_process_handle; + public: + sc_join(); + void add_process( sc_process_handle process_h ); + inline int process_count(); + virtual void signal(sc_thread_handle thread_p, int type); + inline void wait(); + inline void wait_clocked(); + + protected: + void add_process( sc_process_b* process_p ); + + protected: + sc_event m_join_event; // Event to notify when all threads have reported. + int m_threads_n; // # of threads still need to wait for. +}; + +int sc_join::process_count() { return m_threads_n; } + +// suspend a thread that does not have a sensitivity list: + +inline void sc_join::wait() { ::sc_core::wait(m_join_event); } + +// suspend a thread that has a sensitivity list: + +inline void sc_join::wait_clocked() +{ + do { ::sc_core::wait(); } while (m_threads_n != 0); +} + +#define SC_CJOIN \ + }; \ + sc_core::sc_join join; \ + for ( unsigned int i = 0; \ + i < sizeof(forkees)/sizeof(sc_core::sc_process_handle); \ + i++ ) \ + join.add_process(forkees[i]); \ + join.wait_clocked(); \ +} + +#define SC_FORK \ +{ \ + sc_core::sc_process_handle forkees[] = { + +#define SC_JOIN \ + }; \ + sc_core::sc_join join; \ + for ( unsigned int i = 0; \ + i < sizeof(forkees)/sizeof(sc_core::sc_process_handle); \ + i++ ) \ + join.add_process(forkees[i]); \ + join.wait(); \ +} + +} // namespace sc_core + +// Revision 1.6 2011/08/24 22:05:50 acg +// Torsten Maehne: initialization changes to remove warnings. +// +// Revision 1.5 2011/02/18 20:27:14 acg +// Andy Goodrich: Updated Copyrights. +// +// Revision 1.4 2011/02/13 21:47:37 acg +// Andy Goodrich: update copyright notice. +// +// Revision 1.3 2009/07/28 01:10:53 acg +// Andy Goodrich: updates for 2.3 release candidate. +// +// Revision 1.2 2008/05/22 17:06:25 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 1.5 2006/04/28 21:38:27 acg +// Andy Goodrich: fixed loop constraint that was using sizeof(sc_thread_handle) +// rather than sizeof(sc_process_handle). +// +// Revision 1.4 2006/01/13 18:44:29 acg +// Added $Log to record CVS changes into the source. + +#endif // SC_JOIN_H |