thr_info.c revision 157457 
1/*
2 * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by John Birrell.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * $FreeBSD: head/lib/libthr/thread/thr_info.c 157457 2006-04-04 02:57:49Z davidxu $
33 */
34
35#include "namespace.h"
36#include <stdlib.h>
37#include <string.h>
38#include <pthread.h>
39#include <pthread_np.h>
40#include "un-namespace.h"
41
42#include "thr_private.h"
43
44__weak_reference(_pthread_set_name_np, pthread_set_name_np);
45
46/* Set the thread name for debug. */
47void
48_pthread_set_name_np(pthread_t thread, const char *name)
49{
50	struct pthread *curthread = _get_curthread();
51	int ret = 0;
52
53	if (curthread == thread) {
54		if (thr_set_name(thread->tid, name))
55			ret = errno;
56	} else {
57		if (_thr_ref_add(curthread, thread, 0) == 0) {
58			THR_LOCK(thread);
59			if (thread->state != PS_DEAD) {
60				if (thr_set_name(thread->tid, name))
61					ret = errno;
62			}
63			THR_UNLOCK(thread);
64			_thr_ref_delete(curthread, thread);
65		} else {
66			ret = ESRCH;
67		}
68	}
69#if 0
70	/* XXX should return error code. */
71	return (ret);
72#endif
73}
74