From 2ab3d99967d68c79351fe2a3df22c445447e3010 Mon Sep 17 00:00:00 2001 From: Michał Cichoń Date: Tue, 15 Nov 2011 22:28:48 +0100 Subject: Initial import. --- pthreads/src/pthread_barrier_init.c | 69 +++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 pthreads/src/pthread_barrier_init.c (limited to 'pthreads/src/pthread_barrier_init.c') diff --git a/pthreads/src/pthread_barrier_init.c b/pthreads/src/pthread_barrier_init.c new file mode 100644 index 0000000..618bfae --- /dev/null +++ b/pthreads/src/pthread_barrier_init.c @@ -0,0 +1,69 @@ +/* + * pthread_barrier_init.c + * + * Description: + * This translation unit implements barrier primitives. + * + * -------------------------------------------------------------------------- + * + * Pthreads-win32 - POSIX Threads Library for Win32 + * Copyright(C) 1998 John E. Bossom + * Copyright(C) 1999,2005 Pthreads-win32 contributors + * + * Contact Email: rpj@callisto.canberra.edu.au + * + * The current list of contributors is contained + * in the file CONTRIBUTORS included with the source + * code distribution. The list can also be seen at the + * following World Wide Web location: + * http://sources.redhat.com/pthreads-win32/contributors.html + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library in the file COPYING.LIB; + * if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + */ + +#include "pthread.h" +#include "implement.h" + + +int +pthread_barrier_init (pthread_barrier_t * barrier, + const pthread_barrierattr_t * attr, unsigned int count) +{ + pthread_barrier_t b; + + if (barrier == NULL || count == 0) + { + return EINVAL; + } + + if (NULL != (b = (pthread_barrier_t) calloc (1, sizeof (*b)))) + { + b->pshared = (attr != NULL && *attr != NULL + ? (*attr)->pshared : PTHREAD_PROCESS_PRIVATE); + + b->nCurrentBarrierHeight = b->nInitialBarrierHeight = count; + b->lock = 0; + + if (0 == sem_init (&(b->semBarrierBreeched), b->pshared, 0)) + { + *barrier = b; + return 0; + } + (void) free (b); + } + + return ENOMEM; +} -- cgit v1.2.3