mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 16:50:07 +00:00
52 lines
1.7 KiB
C
52 lines
1.7 KiB
C
/* pthread_setspecific. Generic version.
|
|
Copyright (C) 2002-2020 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 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, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <pthread.h>
|
|
|
|
#include <pt-internal.h>
|
|
|
|
int
|
|
__pthread_setspecific (pthread_key_t key, const void *value)
|
|
{
|
|
struct __pthread *self = _pthread_self ();
|
|
|
|
if (key < 0 || key >= __pthread_key_count
|
|
|| __pthread_key_destructors[key] == PTHREAD_KEY_INVALID)
|
|
return EINVAL;
|
|
|
|
if (key >= self->thread_specifics_size)
|
|
{
|
|
/* Amortize reallocation cost. */
|
|
int newsize = 2 * key + 1;
|
|
void **new = realloc (self->thread_specifics,
|
|
newsize * sizeof (new[0]));
|
|
if (new == NULL)
|
|
return ENOMEM;
|
|
|
|
memset (&new[self->thread_specifics_size], 0,
|
|
(newsize - self->thread_specifics_size) * sizeof (new[0]));
|
|
self->thread_specifics = new;
|
|
self->thread_specifics_size = newsize;
|
|
}
|
|
|
|
self->thread_specifics[key] = (void *) value;
|
|
return 0;
|
|
}
|
|
strong_alias (__pthread_setspecific, pthread_setspecific);
|
|
hidden_def (__pthread_setspecific)
|