diff options
Diffstat (limited to 'lib/libthr/thread/thr_detach.c')
-rw-r--r-- | lib/libthr/thread/thr_detach.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/lib/libthr/thread/thr_detach.c b/lib/libthr/thread/thr_detach.c new file mode 100644 index 0000000..bfcb6e6 --- /dev/null +++ b/lib/libthr/thread/thr_detach.c @@ -0,0 +1,71 @@ +/* + * 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. + * + * $FreeBSD$ + * + */ + +#include "namespace.h" +#include <sys/types.h> +#include <errno.h> +#include <pthread.h> +#include "un-namespace.h" + +#include "thr_private.h" + +__weak_reference(_pthread_detach, pthread_detach); + +int +_pthread_detach(pthread_t pthread) +{ + struct pthread *curthread = _get_curthread(); + int rval; + + if (pthread == NULL) + return (EINVAL); + + THREAD_LIST_LOCK(curthread); + if ((rval = _thr_find_thread(curthread, pthread, + /*include dead*/1)) != 0) { + THREAD_LIST_UNLOCK(curthread); + return (rval); + } + + /* Check if the thread is already detached or has a joiner. */ + if ((pthread->tlflags & TLFLAGS_DETACHED) != 0 || + (pthread->joiner != NULL)) { + THREAD_LIST_UNLOCK(curthread); + return (EINVAL); + } + + /* Flag the thread as detached. */ + pthread->tlflags |= TLFLAGS_DETACHED; + if (pthread->state == PS_DEAD) + THR_GCLIST_ADD(pthread); + THREAD_LIST_UNLOCK(curthread); + + return (0); +} |