/*      $OpenBSD: sigwait.c,v 1.1 2019/01/12 00:16:03 jca Exp $ */
/*
 * Copyright (c) 2005 Ted Unangst <tedu@openbsd.org>
 * All Rights Reserved.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
/*
 * signals
 */

#include <signal.h>
#include <errno.h>

#include <pthread.h>

#include "thread/rthread.h"
#include "cancel.h"             /* in libc/include */

int
sigwait(const sigset_t *set, int *sig)
{
        sigset_t s = *set;
        int ret;

        sigdelset(&s, SIGTHR);
        do {
                ENTER_CANCEL_POINT(1);
                ret = __thrsigdivert(s, NULL, NULL);
                LEAVE_CANCEL_POINT(ret == -1);
        } while (ret == -1 && errno == EINTR);
        if (ret == -1)
                return (errno);
        *sig = ret;
        return (0);
}

#if 0           /* need kernel to fill in more siginfo_t bits first */
int
sigwaitinfo(const sigset_t *set, siginfo_t *info)
{
        sigset_t s = *set;
        int ret;

        sigdelset(&s, SIGTHR);
        ENTER_CANCEL_POINT(1);
        ret = __thrsigdivert(s, info, NULL);
        LEAVE_CANCEL_POINT(ret == -1);
        return (ret);
}

int
sigtimedwait(const sigset_t *set, siginfo_t *info,
    const struct timespec *timeout)
{
        sigset_t s = *set;
        int ret;

        sigdelset(&s, SIGTHR);
        ENTER_CANCEL_POINT(1);
        ret = __thrsigdivert(s, info, timeout);
        LEAVE_CANCEL_POINT(ret == -1);
        return (ret);
}
#endif