| /***************************************************************************** |
| |
| 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_barrier.h -- Barrier Process Synchronization Definition |
| |
| Original Author: Andy Goodrich, Forte Design Systems, 5 May 2003 |
| |
| *****************************************************************************/ |
| |
| /***************************************************************************** |
| |
| MODIFICATION LOG - modifiers, enter your name, affiliation, date and |
| changes you are making here. |
| |
| Name, Affiliation, Date: |
| Description of Modification: |
| |
| *****************************************************************************/ |
| |
| // $Log: sc_barrier.h,v $ |
| // Revision 1.1.1.1 2006/12/15 20:26:03 acg |
| // systemc_tests-2.3 |
| // |
| // Revision 1.2 2006/01/24 21:04:52 acg |
| // Andy Goodrich: replacement of deprecated features with their non-deprecated |
| // counterparts. |
| // |
| |
| #ifndef SC_BARRIER_H |
| #define SC_BARRIER_H |
| |
| namespace sc_dp { |
| |
| // ----------------------------------------------------------------------------- |
| // CLASS sc_barrier |
| // |
| // This class provides a way of synchronising a set of processes. Each process |
| // calls the wait() method and one all processes have called that method they |
| // will all be released for execution. |
| // ----------------------------------------------------------------------------- |
| |
| class sc_barrier { |
| public: |
| void initialize( int thread_n ) |
| { |
| m_thread_n = thread_n; |
| } |
| |
| void wait() |
| { |
| m_thread_n--; |
| if ( m_thread_n ) |
| { |
| ::sc_core::wait(m_barrier_event); |
| } |
| else |
| { |
| m_barrier_event.notify(SC_ZERO_TIME); |
| ::sc_core::wait(m_barrier_event); |
| } |
| } |
| |
| protected: |
| sc_event m_barrier_event; // Event to wait on. |
| int m_thread_n; // # of threads left to wait. |
| }; |
| |
| } // namespace sc_dp |
| |
| #endif // SC_BARRIER_H |