freebsd/lib/libc/gen/_pthread_stubs.c

/*
 * 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.
 *
 * $FreeBSD$
 */

#include <pthread.h>

/*
 * Weak symbols: All libc internal usage of these functions should
 * use the weak symbol versions (_pthread_XXX).  If libpthread is
 * linked, it will override these functions with (non-weak) routines.
 * The _pthread_XXX functions are provided solely for internal libc
 * usage to avoid unwanted cancellation points and to differentiate
 * between application locks and libc locks (threads holding the
 * latter can't be allowed to exit/terminate).
 */
#pragma weak	_pthread_getspecific=_pthread_getspecific_stub
#pragma weak	_pthread_key_create=_pthread_key_create_stub
#pragma weak	_pthread_key_delete=_pthread_key_delete_stub
#pragma weak	_pthread_mutex_destroy=_pthread_mutex_destroy_stub
#pragma weak	_pthread_mutex_init=_pthread_mutex_init_stub
#pragma weak	_pthread_mutex_lock=_pthread_mutex_lock_stub
#pragma weak	_pthread_mutex_trylock=_pthread_mutex_trylock_stub
#pragma weak	_pthread_mutex_unlock=_pthread_mutex_unlock_stub
#pragma weak	_pthread_mutexattr_init=_pthread_mutexattr_init_stub
#pragma weak	_pthread_mutexattr_destroy=_pthread_mutexattr_destroy_stub
#pragma weak	_pthread_mutexattr_settype=_pthread_mutexattr_settype_stub
#pragma weak	_pthread_once=_pthread_once_stub
#pragma weak	_pthread_self=_pthread_self_stub
#pragma weak	_pthread_setspecific=_pthread_setspecific_stub

struct pthread {
};

static struct pthread	main_thread;


void *
_pthread_getspecific_stub(pthread_key_t key)
{
	return (NULL);
}

int
_pthread_key_create_stub(pthread_key_t *key, void (*destructor) (void *))
{
	return (0);
}

int
_pthread_key_delete_stub(pthread_key_t key)
{
	return (0);
}

int
_pthread_mutex_destroy_stub(pthread_mutex_t *mattr)
{
	return (0);
}

int
_pthread_mutex_init_stub(pthread_mutex_t *mutex, const pthread_mutexattr_t *mattr)
{
	return (0);
}

int
_pthread_mutex_lock_stub(pthread_mutex_t *mutex)
{
	return (0);
}

int
_pthread_mutex_trylock_stub(pthread_mutex_t *mutex)
{
	return (0);
}

int
_pthread_mutex_unlock_stub(pthread_mutex_t *mutex)
{
	return (0);
}

int
_pthread_mutexattr_init_stub(pthread_mutexattr_t *mattr)
{
	return (0);
}

int
_pthread_mutexattr_destroy_stub(pthread_mutexattr_t *mattr)
{
	return (0);
}

int
_pthread_mutexattr_settype_stub(pthread_mutexattr_t *mattr, int type)
{
	return (0);
}

int
_pthread_once_stub(pthread_once_t *once_control, void (*init_routine) (void))
{
	return (0);
}

pthread_t
_pthread_self_stub(void)
{
	return (&main_thread);
}

int
_pthread_setspecific_stub(pthread_key_t key, const void *value)
{
	return (0);
}