/*
 * Copyright (c) 1996 Jeffrey Hsu <hsu@freebsd.org>.
 * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>.
 * 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.
 * 3. Neither the name of the author nor the names of any co-contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL 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.
 *
 */

#include "namespace.h"
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <pthread.h>
#include <pthread_np.h>
#include "un-namespace.h"

#include "thr_private.h"

int
_pthread_mutexattr_init(pthread_mutexattr_t *attr)
{
        int ret;
        pthread_mutexattr_t pattr;

        pattr = __malloc(sizeof(struct __pthread_mutexattr_s));
        if (pattr == NULL) {
                ret = ENOMEM;
        } else {
                memcpy(pattr, &_pthread_mutexattr_default,
                       sizeof(struct __pthread_mutexattr_s));
                *attr = pattr;
                ret = 0;
        }
        return (ret);
}

int
_pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind)
{
        int     ret;
        if (attr == NULL || *attr == NULL) {
                errno = EINVAL;
                ret = -1;
        } else {
                (*attr)->m_type = kind;
                ret = 0;
        }
        return(ret);
}

int
_pthread_mutexattr_getkind_np(pthread_mutexattr_t attr)
{
        int     ret;

        if (attr == NULL) {
                errno = EINVAL;
                ret = -1;
        } else {
                ret = attr->m_type;
        }
        return (ret);
}

int
_pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type)
{
        int     ret;

        if (attr == NULL || *attr == NULL || type >= PTHREAD_MUTEX_TYPE_MAX) {
                errno = EINVAL;
                ret = -1;
        } else {
                (*attr)->m_type = type;
                ret = 0;
        }
        return (ret);
}

int
_pthread_mutexattr_gettype(const pthread_mutexattr_t * __restrict attr,
    int * __restrict type)
{
        int     ret;

        if (attr == NULL || *attr == NULL || (*attr)->m_type >=
            PTHREAD_MUTEX_TYPE_MAX) {
                ret = EINVAL;
        } else {
                *type = (*attr)->m_type;
                ret = 0;
        }
        return (ret);
}

int
_pthread_mutexattr_destroy(pthread_mutexattr_t *attr)
{
        int     ret;
        if (attr == NULL || *attr == NULL) {
                ret = EINVAL;
        } else {
                __free(*attr);
                *attr = NULL;
                ret = 0;
        }
        return (ret);
}

int
_pthread_mutexattr_getpshared(const pthread_mutexattr_t * __restrict attr,
    int * __restrict pshared)
{

        if (attr == NULL || *attr == NULL)
                return (EINVAL);
        *pshared = PTHREAD_PROCESS_PRIVATE;
        return (0);
}

int
_pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared)
{

        if (attr == NULL || *attr == NULL)
                return (EINVAL);

        /* Only PTHREAD_PROCESS_PRIVATE is supported. */
        if (pshared != PTHREAD_PROCESS_PRIVATE)
                return (EINVAL);

        return (0);
}

int
_pthread_mutexattr_getprotocol(const pthread_mutexattr_t * __restrict mattr,
    int * __restrict protocol)
{
        int ret = 0;

        if ((mattr == NULL) || (*mattr == NULL))
                ret = EINVAL;
        else
                *protocol = (*mattr)->m_protocol;

        return (ret);
}

int
_pthread_mutexattr_setprotocol(pthread_mutexattr_t *mattr, int protocol)
{
        int ret = 0;

        if ((mattr == NULL) || (*mattr == NULL) ||
            (protocol < PTHREAD_PRIO_NONE) || (protocol > PTHREAD_PRIO_PROTECT))
                ret = EINVAL;
        else {
                (*mattr)->m_protocol = protocol;
                (*mattr)->m_ceiling = THR_MUTEX_CEIL_PRIORITY;
        }
        return (ret);
}

int
_pthread_mutexattr_getprioceiling(const pthread_mutexattr_t * __restrict mattr,
    int * __restrict prioceiling)
{
        int ret = 0;

        if ((mattr == NULL) || (*mattr == NULL))
                ret = EINVAL;
        else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT)
                ret = EINVAL;
        else
                *prioceiling = (*mattr)->m_ceiling;

        return (ret);
}

int
_pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mattr, int prioceiling)
{
        int ret = 0;

        if ((mattr == NULL) || (*mattr == NULL))
                ret = EINVAL;
        else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT)
                ret = EINVAL;
        else
                (*mattr)->m_ceiling = prioceiling;

        return (ret);
}

__strong_reference(_pthread_mutexattr_init, pthread_mutexattr_init);
__strong_reference(_pthread_mutexattr_setkind_np, pthread_mutexattr_setkind_np);
__strong_reference(_pthread_mutexattr_getkind_np, pthread_mutexattr_getkind_np);
__strong_reference(_pthread_mutexattr_gettype, pthread_mutexattr_gettype);
__strong_reference(_pthread_mutexattr_settype, pthread_mutexattr_settype);
__strong_reference(_pthread_mutexattr_destroy, pthread_mutexattr_destroy);
__strong_reference(_pthread_mutexattr_getpshared, pthread_mutexattr_getpshared);
__strong_reference(_pthread_mutexattr_setpshared, pthread_mutexattr_setpshared);
__strong_reference(_pthread_mutexattr_getprotocol, pthread_mutexattr_getprotocol);
__strong_reference(_pthread_mutexattr_setprotocol, pthread_mutexattr_setprotocol);
__strong_reference(_pthread_mutexattr_getprioceiling, pthread_mutexattr_getprioceiling);
__strong_reference(_pthread_mutexattr_setprioceiling, pthread_mutexattr_setprioceiling);