mirror of https://github.com/CGAL/cgal
82 lines
2.2 KiB
C++
82 lines
2.2 KiB
C++
// Copyright (c) 1999 Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
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// INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
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// (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
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// and Tel-Aviv University (Israel). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; version 2.1 of the License.
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// See the file LICENSE.LGPL distributed with CGAL.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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//
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//
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// Author(s) : Francois Rebufat <Francois.Rebufat@sophia.inria.fr>
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#include <pthread.h>
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#include <iostream>
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class Synchronizer
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{
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public:
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static void initAll();
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//to initialize the viewer
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static pthread_mutex_t InitMutex;
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//to protect the scene graph
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static pthread_mutex_t sgMutex;
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//to return to the debugger
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static pthread_mutex_t sMutex;
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static pthread_cond_t sCond;
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};
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void sendSignal();
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void stop();
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pthread_mutex_t Synchronizer::InitMutex;
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pthread_mutex_t Synchronizer::sgMutex;
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pthread_mutex_t Synchronizer::sMutex;
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pthread_cond_t Synchronizer::sCond;
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void Synchronizer::initAll()
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{
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pthread_mutex_init(&Synchronizer::InitMutex, NULL);
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pthread_mutex_init(&Synchronizer::sgMutex, NULL);
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pthread_mutex_init(&Synchronizer::sMutex, NULL);
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pthread_cond_init(&Synchronizer::sCond, NULL);
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}
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void sendSignal()
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{
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std::cerr << "condition...";
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pthread_mutex_lock(&Synchronizer::sMutex);
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pthread_cond_signal(&Synchronizer::sCond);
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pthread_mutex_unlock(&Synchronizer::sMutex);
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std::cerr << "...signaled\n";
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}
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void stop()
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{
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std::cerr << "stop...";
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pthread_mutex_lock(&Synchronizer::sMutex);
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pthread_cond_wait(&Synchronizer::sCond, &Synchronizer::sMutex);
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pthread_mutex_unlock(&Synchronizer::sMutex);
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std::cerr << "...executed\n";
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}
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