1 /* $OpenBSD: uthread_mutex_protocol.c,v 1.2 1999/11/25 07:01:40 d Exp $ */
2 /*
3 * Copyright (c) 1998 Daniel Eischen <eischen@vigrid.com>.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by Daniel Eischen.
17 * 4. Neither the name of the author nor the names of any co-contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * $FreeBSD: uthread_mutex_protocol.c,v 1.3 1999/08/28 00:03:41 peter Exp $
34 */
35 #include <string.h>
36 #include <stdlib.h>
37 #include <errno.h>
38 #ifdef _THREAD_SAFE
39 #include <pthread.h>
40 #include "pthread_private.h"
41
42 int
pthread_mutexattr_getprotocol(pthread_mutexattr_t * mattr,int * protocol)43 pthread_mutexattr_getprotocol(pthread_mutexattr_t *mattr, int *protocol)
44 {
45 int ret = 0;
46
47 if ((mattr == NULL) || (*mattr == NULL))
48 ret = EINVAL;
49 else
50 *protocol = (*mattr)->m_protocol;
51
52 return(ret);
53 }
54
55 int
pthread_mutexattr_setprotocol(pthread_mutexattr_t * mattr,int protocol)56 pthread_mutexattr_setprotocol(pthread_mutexattr_t *mattr, int protocol)
57 {
58 int ret = 0;
59
60 if ((mattr == NULL) || (*mattr == NULL) ||
61 (protocol < PTHREAD_PRIO_NONE) || (protocol > PTHREAD_PRIO_PROTECT))
62 ret = EINVAL;
63 else {
64 (*mattr)->m_protocol = protocol;
65 (*mattr)->m_ceiling = PTHREAD_MAX_PRIORITY;
66 }
67 return(ret);
68 }
69
70 #endif
71