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/*************************************************************************** |
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* * |
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* LinuxSampler - modular, streaming capable sampler * |
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* * |
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* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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schoenebeck |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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#include <iostream> |
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capela |
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#include <errno.h> |
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schoenebeck |
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#include <stdlib.h> /* for exit(int) */ |
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capela |
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schoenebeck |
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#include "Mutex.h" |
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Mutex::Mutex() { |
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schoenebeck |
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// the following function call only works on UNIX98 compatible systems |
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schoenebeck |
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if (pthread_mutexattr_settype(&__posix_mutexattr, PTHREAD_MUTEX_ERRORCHECK)) { |
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std::cout << "Mutex Constructor: Fatal error - unable to pthread_mutexattr_settype(PTHREAD_MUTEX_ERRORCHECK)\n" << std::flush; |
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exit(-1); |
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} |
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pthread_mutex_init(&__posix_mutex, &__posix_mutexattr); |
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} |
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Mutex::~Mutex() { |
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pthread_mutex_destroy(&__posix_mutex); |
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} |
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void Mutex::Lock() { |
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pthread_mutex_lock(&__posix_mutex); |
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} |
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senkov |
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bool Mutex::Trylock() { |
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if (pthread_mutex_trylock(&__posix_mutex) == EBUSY) |
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return false; |
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return true; |
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} |
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schoenebeck |
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void Mutex::Unlock() { |
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pthread_mutex_unlock(&__posix_mutex); |
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} |