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/* $OpenBSD: rthread_rwlockattr.c,v 1.2 2012/02/15 04:58:42 guenther Exp $ */ |
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/* |
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* Copyright (c) 2004,2005 Ted Unangst <tedu@openbsd.org> |
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* All Rights Reserved. |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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/* |
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* rwlock attributes |
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*/ |
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#include <stdlib.h> |
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#include <unistd.h> |
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#include <errno.h> |
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#include <pthread.h> |
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#include "rthread.h" |
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int |
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pthread_rwlockattr_init(pthread_rwlockattr_t *attrp) |
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{ |
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pthread_rwlockattr_t attr; |
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attr = calloc(1, sizeof(*attr)); |
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if (!attr) |
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return (errno); |
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attr->pshared = PTHREAD_PROCESS_PRIVATE; |
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*attrp = attr; |
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return (0); |
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} |
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int |
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pthread_rwlockattr_destroy(pthread_rwlockattr_t *attrp) |
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{ |
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free(*attrp); |
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*attrp = NULL; |
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return (0); |
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} |
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int |
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pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *attrp, int *pshared) |
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{ |
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*pshared = (*attrp)->pshared; |
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return (0); |
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} |
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int |
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pthread_rwlockattr_setpshared(pthread_rwlockattr_t *attrp, int pshared) |
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{ |
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/* only PTHREAD_PROCESS_PRIVATE is supported */ |
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if (pshared != PTHREAD_PROCESS_PRIVATE) |
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return (EINVAL); |
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(*attrp)->pshared = pshared; |
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return (0); |
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} |