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/* $OpenBSD: rthread_tls.c,v 1.1 2005/12/03 18:16:19 tedu Exp $ */
/*
* Copyright (c) 2004 Ted Unangst <tedu@openbsd.org>
* All Rights Reserved.
*
* 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.
*/
/*
* thread specific storage
*/
#include <sys/param.h>
#include <sys/mman.h>
#include <sys/wait.h>
#include <machine/spinlock.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <pthread.h>
#include "rthread.h"
struct rthread_key *rthread_key_list;
int
pthread_key_create(pthread_key_t *key, void (*destructor)(void*))
{
static int last_key;
struct rthread_key *rkey;
last_key++;
rkey = malloc(sizeof(*key));
if (!rkey)
return (errno);
rkey->keyid = last_key;
rkey->destructor = destructor;
rkey->next = rthread_key_list;
rthread_key_list = rkey;
*key = last_key;
return (0);
}
int
pthread_key_delete(pthread_key_t key)
{
return (0);
}
static struct rthread_storage *
rthread_findstorage(pthread_key_t key)
{
struct rthread_storage *rs;
pthread_t self;
self = pthread_self();
for (rs = self->local_storage; rs; rs = rs->next) {
if (rs->keyid == key)
break;
}
if (!rs) {
rs = malloc(sizeof(*rs));
if (!rs)
return (NULL);
rs->keyid = key;
rs->data = NULL;
rs->next = self->local_storage;
self->local_storage = rs;
}
return (rs);
}
void *
pthread_getspecific(pthread_key_t key)
{
struct rthread_storage *rs;
rs = rthread_findstorage(key);
if (!rs)
return (NULL);
return (rs->data);
}
int
pthread_setspecific(pthread_key_t key, const void *data)
{
struct rthread_storage *rs;
rs = rthread_findstorage(key);
if (!rs)
return (ENOMEM);
rs->data = (void *)data;
return (0);
}
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