sortix-mirror/libc/pthread/pthread_getspecific.c

39 lines
1.2 KiB
C

/*
* Copyright (c) 2014 Jonas 'Sortie' Termansen.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* pthread/pthread_getspecific.c
* Thread-specific data management.
*/
#include <assert.h>
#include <pthread.h>
void* pthread_getspecific(pthread_key_t key)
{
struct pthread* thread = pthread_self();
if ( key < thread->keys_length )
return thread->keys[key];
pthread_mutex_lock(&__pthread_keys_lock);
assert(key < __pthread_keys_length);
assert(__pthread_keys[key].destructor);
pthread_mutex_unlock(&__pthread_keys_lock);
return NULL;
}