OZ++ Class: BarrierAttribute |
/****************************************************************************** * * Copyright (c) 2015 TOSHIYUKI ARAI. ALL RIGHTS RESERVED. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer. * * 2. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * * BarrierAttribute.h * *****************************************************************************/ #pragma once #include <oz++/CommonObject.h> #include <oz++/Exception.h> #include <pthread.h> namespace OZ { class BarrierAttribute :public CommonObject { private: pthread_barrierattr_t attr; public: BarrierAttribute() :barrierAttribute(0), { int rc = pthread_barrierattr_init(&attr); if (rc < 0) { throw IException("Failed to pthread_barrierattr_init: %s", error()); } } ~BarrierAttribute() { try { destroy(); } catch (Exception& ex) { ex.display(); } } void destroy() { if (barrier != 0) { int rc = pthread_barrierattr_destroy(&attr); if (rc != 0) { throw IException("Failed to pthread_barrier_destroy:%s", error()); } } } int getShared (int& pshared) { int rc = pthread_barrierattr_getpshared (&attr, &pshared); if (rc != 0) { throw IException("Faield to pthread_barrierattr_getshared: %s", error()); } return rc; } int setShared (int pshared) { int rc = pthread_barrierattr_setpshared (&attr, pshared); if (rc != 0) { throw IException("Faield to pthread_barrierattr_setshared: %s", error()); } return rc; } }; }