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| author | Samuel Thibault <samy@hurd.youpi.perso.aquilenet.fr> | 2012-05-20 13:37:32 +0000 |
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| committer | Samuel Thibault <samy@hurd.youpi.perso.aquilenet.fr> | 2012-05-20 13:37:32 +0000 |
| commit | ca35f7a6e428a95d1ff0aa40d6545820b580df1d (patch) | |
| tree | 27027c7aabca1f4bbe7fb684e4f0f1a7d3b24051 /libpthread/sysdeps/hurd/pt-key-create.c | |
| parent | c490cb9d4c1df1adcb2e76679e1969e7fe062560 (diff) | |
| parent | 756a64304b61a94b9b57ae88c4af5654152f5b8e (diff) | |
Merge branch 'upstream-merged'
Diffstat (limited to 'libpthread/sysdeps/hurd/pt-key-create.c')
| -rw-r--r-- | libpthread/sysdeps/hurd/pt-key-create.c | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/libpthread/sysdeps/hurd/pt-key-create.c b/libpthread/sysdeps/hurd/pt-key-create.c deleted file mode 100644 index b3e01412..00000000 --- a/libpthread/sysdeps/hurd/pt-key-create.c +++ /dev/null @@ -1,109 +0,0 @@ -/* pthread_key_create. Hurd version. - Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <pthread.h> -#include <stdlib.h> -#include <assert.h> - -#include <pt-internal.h> - -pthread_mutex_t __pthread_key_lock; - -void (**__pthread_key_destructors) (void *arg); -int __pthread_key_size; -int __pthread_key_count; -int __pthread_key_invalid_count; - -int -pthread_key_create (pthread_key_t *key, void (*destructor) (void *)) -{ - /* Where to look for the next key slot. */ - static int index; - - __pthread_key_lock_ready (); - - __pthread_mutex_lock (&__pthread_key_lock); - - do_search: - /* Use the search hint and try to find a free slot. */ - for (; index < __pthread_key_count - && __pthread_key_destructors[index] != PTHREAD_KEY_INVALID; - index ++) - ; - - /* See if we actually found a free element. */ - if (index < __pthread_key_count) - { - assert (__pthread_key_destructors[index] == PTHREAD_KEY_INVALID); - assert (__pthread_key_invalid_count > 0); - - __pthread_key_invalid_count --; - __pthread_key_destructors[index] = destructor; - *key = index ++; - - __pthread_mutex_unlock (&__pthread_key_lock); - return 0; - } - - assert (index == __pthread_key_count); - - /* No space at the end. */ - if (__pthread_key_size == __pthread_key_count) - { - /* See if it is worth looking for a free element. */ - if (__pthread_key_invalid_count > 4 - && __pthread_key_invalid_count > __pthread_key_size / 8) - { - index = 0; - goto do_search; - } - - - /* Resize the array. */ - { - void *t; - int newsize; - - if (__pthread_key_size == 0) - newsize = 8; - else - newsize = __pthread_key_size * 2; - - t = realloc (__pthread_key_destructors, - newsize * sizeof (*__pthread_key_destructors)); - if (! t) - { - __pthread_mutex_unlock (&__pthread_key_lock); - return ENOMEM; - } - - __pthread_key_size = newsize; - __pthread_key_destructors = t; - } - } - - __pthread_key_destructors[index] = destructor; - *key = index; - - index ++; - __pthread_key_count ++; - - __pthread_mutex_unlock (&__pthread_key_lock); - return 0; -} |
