3212ada519
to clear the thread name. PR: 239142 Submitted by: Lewis Donzis <lew@perftech.com> MFC after: 3 days
112 lines
3.4 KiB
C
112 lines
3.4 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*
|
|
* Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>
|
|
* Copyright (c) 2018 The FreeBSD Foundation
|
|
* All rights reserved.
|
|
*
|
|
* Portions of this software were developed by Konstantin Belousov
|
|
* under sponsorship from the FreeBSD Foundation.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the author nor the names of any co-contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "namespace.h"
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <pthread.h>
|
|
#include <pthread_np.h>
|
|
#include "un-namespace.h"
|
|
|
|
#include "thr_private.h"
|
|
|
|
__weak_reference(_pthread_set_name_np, pthread_set_name_np);
|
|
|
|
static void
|
|
thr_set_name_np(struct pthread *thread, const char *name)
|
|
{
|
|
|
|
free(thread->name);
|
|
thread->name = name != NULL ? strdup(name) : NULL;
|
|
}
|
|
|
|
/* Set the thread name for debug. */
|
|
void
|
|
_pthread_set_name_np(pthread_t thread, const char *name)
|
|
{
|
|
struct pthread *curthread;
|
|
|
|
curthread = _get_curthread();
|
|
if (curthread == thread) {
|
|
THR_THREAD_LOCK(curthread, thread);
|
|
thr_set_name(thread->tid, name);
|
|
thr_set_name_np(thread, name);
|
|
THR_THREAD_UNLOCK(curthread, thread);
|
|
} else {
|
|
if (_thr_find_thread(curthread, thread, 0) == 0) {
|
|
if (thread->state != PS_DEAD) {
|
|
thr_set_name(thread->tid, name);
|
|
thr_set_name_np(thread, name);
|
|
}
|
|
THR_THREAD_UNLOCK(curthread, thread);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
thr_get_name_np(struct pthread *thread, char *buf, size_t len)
|
|
{
|
|
|
|
if (thread->name != NULL)
|
|
strlcpy(buf, thread->name, len);
|
|
else if (len > 0)
|
|
buf[0] = '\0';
|
|
}
|
|
|
|
__weak_reference(_pthread_get_name_np, pthread_get_name_np);
|
|
|
|
void
|
|
_pthread_get_name_np(pthread_t thread, char *buf, size_t len)
|
|
{
|
|
struct pthread *curthread;
|
|
|
|
curthread = _get_curthread();
|
|
if (curthread == thread) {
|
|
THR_THREAD_LOCK(curthread, thread);
|
|
thr_get_name_np(thread, buf, len);
|
|
THR_THREAD_UNLOCK(curthread, thread);
|
|
} else {
|
|
if (_thr_find_thread(curthread, thread, 0) == 0) {
|
|
if (thread->state != PS_DEAD)
|
|
thr_get_name_np(thread, buf, len);
|
|
THR_THREAD_UNLOCK(curthread, thread);
|
|
} else if (len > 0)
|
|
buf[0] = '\0';
|
|
}
|
|
}
|