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/* Copyright (C) 2008 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David Bartley <dtbartle@csclub.uwaterloo.ca>, 2008.
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 <pthreadP.h>
#include <thread.h>
static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
int thr_keycreate_once (keyp, destructor)
thread_key_t *keyp;
void (*destructor)(void *);
{
int errval = 0;
if (*keyp)
{
errval = __pthread_mutex_lock (&mutex);
if (errval == 0)
{
if (*keyp)
errval = pthread_key_create (keyp, destructor);
__pthread_mutex_unlock (&mutex);
}
}
return errval;
}
weak_alias (thr_keycreate_once, pthread_key_create_once_np)
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