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+/*****************************************************************************
+
+ 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