/*

 * Copyright (c) 2024 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 <assert.h>

#include <stddef.h>

#include <stdlib.h>

#include "rtpp_types.h"

#include "rtpp_mallocs.h"

#include "rtpp_codeptr.h"

#include "rtpp_refcnt.h"

#include "rtpp_refproxy.h"

#include "rtpp_refproxy_fin.h"

struct rtpp_refproxy_priv {

    struct rtpp_refproxy pub;

    int alen;

    int ulen;

    struct rtpp_refcnt *rcnts[0];

};

static void rtpp_refproxy_dtor(struct rtpp_refproxy_priv *);

static void rtpp_refproxy_add(struct rtpp_refproxy *, struct rtpp_refcnt *);

DEFINE_SMETHODS(rtpp_refproxy,

    .add = &rtpp_refproxy_add,

);

struct rtpp_refproxy *

rtpp_refproxy_ctor(int nrefs)

{

    struct rtpp_refproxy_priv *pvt;

    size_t asize = sizeof(struct rtpp_refproxy_priv);

    asize += nrefs * sizeof(struct rtpp_refcnt *);

    pvt = rtpp_rzmalloc(asize, PVT_RCOFFS(pvt));

    if (pvt == NULL) {

        goto e0;

    }

    pvt->alen = nrefs;

    PUBINST_FININIT(&pvt->pub, pvt, rtpp_refproxy_dtor);

    return ((&pvt->pub));

e0:

    return (NULL);

}

static void

rtpp_refproxy_dtor(struct rtpp_refproxy_priv *pvt)

{

    rtpp_refproxy_fin(&(pvt->pub));

    for (int i = 0; i < pvt->ulen; i++) {

        RC_DECREF(pvt->rcnts[i]);

    }

}

static void

rtpp_refproxy_add(struct rtpp_refproxy *self, struct rtpp_refcnt *rcnt)

{

    struct rtpp_refproxy_priv *pvt;

    PUB2PVT(self, pvt);

    assert(pvt->alen > pvt->ulen);

    RC_INCREF(rcnt);

    pvt->rcnts[pvt->ulen] = rcnt;

    pvt->ulen += 1;

}