/*

 * Copyright (c) 2019 Sippy Software, Inc., http://www.sippysoft.com

 * 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 THE AUTHOR 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 "prdic_types.h"

#include "prdic_procchain.h"

#include "prdic_shmtrig.h"

static double

_prdic_shmtrig_update(void *arg, double val)

{

    struct _prdic_shmtrig *pub;

    pub = (struct _prdic_shmtrig *)arg;

    if (pub->currval && val < pub->lTrs) {

        pub->currval = 0;

    } else if (!pub->currval && val > pub->hTrs) {

        pub->currval = 1;

    }

    return (pub->currval);

}

void

_prdic_shmtrig_init(struct _prdic_shmtrig *pub, unsigned int ival, double lTrs,

  double hTrs)

{

    pub->currval = ival;

    pub->lTrs = lTrs;

    pub->hTrs = hTrs;

    pub->link.handle = _prdic_shmtrig_update;

    pub->link.arg = pub;

}