mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-26 20:51:11 +00:00
5a3ab2fc18
2003-03-21 Ulrich Drepper <drepper@redhat.com> * cancellation.c: Adjust for new form of compare&exchange macros. * cleanup_defer.c: Likewise. * init.c: Likewise. * libc-cancellation.c: Likewise. * old_pthread_cond_broadcast.c: Likewise. * old_pthread_cond_signal.c: Likewise. * old_pthread_cond_timedwait.c: Likewise. * old_pthread_cond_wait.c: Likewise. * pthread_cancel.c: Likewise. * pthread_create.c: Likewise. * pthread_detach.c: Likewise. * pthread_join.c: Likewise. * pthread_key_delete.c: Likewise. * pthread_setcancelstate.c: Likewise. * pthread_setcanceltype.c: Likewise. * pthread_timedjoin.c: Likewise. * pthread_tryjoin.c: Likewise. * sysdeps/pthread/createthread.c: Likewise.
44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <errno.h>
|
|
#include "pthreadP.h"
|
|
#include <atomic.h>
|
|
|
|
|
|
int
|
|
pthread_key_delete (key)
|
|
pthread_key_t key;
|
|
{
|
|
int result = EINVAL;
|
|
|
|
if (__builtin_expect (key < PTHREAD_KEYS_MAX, 1))
|
|
{
|
|
unsigned int seq = __pthread_keys[key].seq;
|
|
|
|
if (__builtin_expect (! KEY_UNUSED (seq), 1)
|
|
&& ! atomic_compare_and_exchange_bool_acq (&__pthread_keys[key].seq,
|
|
seq + 1, seq))
|
|
/* We deleted a valid key. */
|
|
result = 0;
|
|
}
|
|
|
|
return result;
|
|
}
|