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- /* 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"
- /* Internal mutex for __pthread_keys table handling. */
- lll_lock_t __pthread_keys_lock = LLL_LOCK_INITIALIZER;
- int
- __pthread_key_create (key, destr)
- pthread_key_t *key;
- void (*destr) (void *);
- {
- int result = EAGAIN;
- size_t cnt;
- lll_lock (__pthread_keys_lock);
- /* Find a slot in __pthread_kyes which is unused. */
- for (cnt = 0; cnt < PTHREAD_KEYS_MAX; ++cnt)
- if (KEY_UNUSED (__pthread_keys[cnt].seq)
- && KEY_USABLE (__pthread_keys[cnt].seq))
- {
- /* We found an unused slot. */
- ++__pthread_keys[cnt].seq;
- /* Remember the destructor. */
- __pthread_keys[cnt].destr = destr;
- /* Return the key to the caller. */
- *key = cnt;
- /* The call succeeded. */
- result = 0;
- /* We found a key and can stop now. */
- break;
- }
- lll_unlock (__pthread_keys_lock);
- return result;
- }
- strong_alias (__pthread_key_create, pthread_key_create)
- strong_alias (__pthread_key_create, __pthread_key_create_internal)
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