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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2005 David Xu <davidxu@freebsd.org>
* Copyright (C) 2003 Daniel M. Eischen <deischen@freebsd.org>
* All rights reserved.
*
* 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 unmodified, 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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>
#include "namespace.h"
#include <sys/types.h>
#include <errno.h>
#include <pthread.h>
#include "un-namespace.h"
#include "thr_private.h"
__weak_reference(_thr_detach, pthread_detach);
__weak_reference(_thr_detach, _pthread_detach);
int
_thr_detach(pthread_t pthread)
{
struct pthread *curthread = _get_curthread();
int rval;
if (pthread == NULL)
return (EINVAL);
if ((rval = _thr_find_thread(curthread, pthread,
/*include dead*/1)) != 0) {
return (rval);
}
/* Check if the thread is already detached or has a joiner. */
if ((pthread->flags & THR_FLAGS_DETACHED) != 0 ||
(pthread->joiner != NULL)) {
THR_THREAD_UNLOCK(curthread, pthread);
return (EINVAL);
}
/* Flag the thread as detached. */
pthread->flags |= THR_FLAGS_DETACHED;
_thr_try_gc(curthread, pthread); /* thread lock released */
return (0);
}
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