/* * pthread_rwlockattr_init.c * * Description: * This translation unit implements read/write lock primitives. * * -------------------------------------------------------------------------- * * Pthreads-win32 - POSIX Threads Library for Win32 * Copyright(C) 1998 John E. Bossom * Copyright(C) 1999,2003 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 <errno.h> #include <limits.h> #include "pthread.h" #include "implement.h" int pthread_rwlockattr_init (pthread_rwlockattr_t * attr) /* * ------------------------------------------------------ * DOCPUBLIC * Initializes a rwlock attributes object with default * attributes. * * PARAMETERS * attr * pointer to an instance of pthread_rwlockattr_t * * * DESCRIPTION * Initializes a rwlock attributes object with default * attributes. * * RESULTS * 0 successfully initialized attr, * ENOMEM insufficient memory for attr. * * ------------------------------------------------------ */ { int result = 0; pthread_rwlockattr_t rwa; rwa = (pthread_rwlockattr_t) calloc (1, sizeof (*rwa)); if (rwa == NULL) { result = ENOMEM; } else { rwa->pshared = PTHREAD_PROCESS_PRIVATE; } *attr = rwa; return (result); } /* pthread_rwlockattr_init */