/*

 * 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 <sys/types.h>

#include <sys/time.h>

#include <sys/resource.h>

#include <stdatomic.h>

#include <stddef.h>

#include <stdlib.h>

#include "config_pp.h"

#include "rtpp_types.h"

#include "rtpp_mallocs.h"

#include "rtpp_nofile.h"

#if !defined(NO_ERR_H)

#include <err.h>

#include "rtpp_util.h"

#else

#include "rtpp_util.h"

#endif

struct rtpp_nofile_pvt {

    struct rtpp_nofile pub;

    struct rlimit limit_storage;

};

static void

rtpp_nofile_dtor(struct rtpp_nofile *pub)

{

    struct rtpp_nofile_pvt *priv;

    PUB2PVT(pub, priv);

    free(priv);

}

struct rtpp_nofile *

rtpp_nofile_ctor(void)

{

    struct rtpp_nofile_pvt *priv;

    priv = rtpp_zmalloc(sizeof(*priv));

    if (priv == NULL)

        return (NULL);

    if (getrlimit(RLIMIT_NOFILE, &(priv->limit_storage)) != 0)

        err(1, "getrlimit");

    atomic_init(&(priv->pub.warned), 0);

    priv->pub.dtor = rtpp_nofile_dtor;

    priv->pub.limit = &(priv->limit_storage);

    return (&(priv->pub));

}

long long

rtpp_rlim_max(const struct rtpp_nofile *np)

{

    return (long long)(np->limit->rlim_max);

}