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/*
* Copyright (c) 2001 Daniel Eischen <deischen@FreeBSD.org>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY DANIEL EISCHEN AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD: /tmp/pcvs/ports/devel/linuxthreads/files/wraputhread.c,v 1.1 2001-02-20 00:34:57 tegge Exp $
*/
#include <pthread.h>
#include <stdlib.h>
#include <sys/errno.h>
void *
_pthread_getspecific(pthread_key_t key)
{
return __pthread_getspecific(key);
}
int
_pthread_key_create(pthread_key_t *key, void (*destructor) (void *))
{
return __pthread_key_create(key, destructor);
}
int
_pthread_key_delete(pthread_key_t key)
{
return pthread_key_delete(key);
}
int
_pthread_mutex_destroy(pthread_mutex_t **mutex)
{
int ret;
ret = __pthread_mutex_destroy(*mutex);
if (ret == 0)
free(*mutex);
return ret;
}
static pthread_mutex_t allocmutexlock = PTHREAD_MUTEX_INITIALIZER;
static int
allocmutex(pthread_mutex_t **mutex)
{
pthread_mutex_t *m;
int ret;
m = malloc(sizeof(pthread_mutex_t));
if (m == NULL)
return ENOMEM;
ret = __pthread_mutex_init(m, NULL);
if (ret != 0) {
free(m);
return ret;
}
__pthread_mutex_lock(&allocmutexlock);
if (*mutex != NULL) {
__pthread_mutex_unlock(&allocmutexlock);
__pthread_mutex_destroy(m);
free(m);
return 0;
}
*mutex = m;
__pthread_mutex_unlock(&allocmutexlock);
return 0;
}
int
_pthread_mutex_init(pthread_mutex_t **mutex, const pthread_mutexattr_t *mattr)
{
(void) mattr;
*mutex = malloc(sizeof(pthread_mutex_t));
return __pthread_mutex_init(*mutex, NULL); // XXX
}
int
_pthread_mutex_lock(pthread_mutex_t **mutex)
{
int ret;
if (*mutex == NULL) {
ret = allocmutex(mutex);
if (ret != 0)
return ret;
}
return __pthread_mutex_lock(*mutex);
}
int
_pthread_mutex_trylock(pthread_mutex_t **mutex)
{
int ret;
if (*mutex == NULL) {
ret = allocmutex(mutex);
if (ret != 0)
return ret;
}
return __pthread_mutex_trylock(*mutex);
}
int
_pthread_mutex_unlock(pthread_mutex_t **mutex)
{
int ret;
if (*mutex == NULL) {
ret = allocmutex(mutex);
if (ret != 0)
return ret;
}
return __pthread_mutex_unlock(*mutex);
}
int
_pthread_mutexattr_init(pthread_mutexattr_t *mattr)
{
return EINVAL;
}
int
_pthread_mutexattr_destroy(pthread_mutexattr_t *mattr)
{
return EINVAL;
}
int
_pthread_mutexattr_settype(pthread_mutexattr_t *mattr, int type)
{
return EINVAL;
}
struct uthread_pthread_once {
int state;
pthread_mutex_t *mutex;
};
typedef struct uthread_pthread_once uthread_pthread_once_t;
/*
* Flags for once initialization.
*/
#define UTHREAD_PTHREAD_NEEDS_INIT 0
#define UTHREAD_PTHREAD_DONE_INIT 1
int
_pthread_once(uthread_pthread_once_t *once_control,
void (*init_routine) (void))
{
if (once_control->state == UTHREAD_PTHREAD_NEEDS_INIT) {
_pthread_mutex_lock(&(once_control->mutex));
if (once_control->state == UTHREAD_PTHREAD_NEEDS_INIT) {
init_routine();
once_control->state = UTHREAD_PTHREAD_DONE_INIT;
}
_pthread_mutex_unlock(&(once_control->mutex));
}
return (0);
}
pthread_t
_pthread_self(void)
{
return pthread_self();
}
int
_pthread_setspecific(pthread_key_t key, const void *value)
{
return __pthread_setspecific(key, value);
}
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