GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: sbin/isakmpd/timer.c Lines: 0 42 0.0 %
Date: 2017-11-07 Branches: 0 32 0.0 %

Line Branch Exec Source
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/* $OpenBSD: timer.c,v 1.17 2015/08/20 22:02:21 deraadt Exp $	 */
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/* $EOM: timer.c,v 1.13 2000/02/20 19:58:42 niklas Exp $	 */
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/*
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 * Copyright (c) 1998, 1999 Niklas Hallqvist.  All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/*
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 * This code was written under funding by Ericsson Radio Systems.
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 */
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#include <sys/queue.h>
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#include <stdlib.h>
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#include <string.h>
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#include "log.h"
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#include "timer.h"
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static	TAILQ_HEAD(event_list, event) events;
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void
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timer_init(void)
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{
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	TAILQ_INIT(&events);
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}
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void
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timer_next_event(struct timeval **timeout)
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{
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	struct timeval  now;
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	if (TAILQ_FIRST(&events)) {
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		gettimeofday(&now, 0);
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		if (timercmp(&now, &TAILQ_FIRST(&events)->expiration, >=))
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			timerclear(*timeout);
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		else
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			timersub(&TAILQ_FIRST(&events)->expiration, &now,
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			    *timeout);
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	} else
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		*timeout = 0;
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}
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void
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timer_handle_expirations(void)
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{
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	struct timeval  now;
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	struct event   *n;
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	gettimeofday(&now, 0);
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	for (n = TAILQ_FIRST(&events); n && timercmp(&now, &n->expiration, >=);
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	    n = TAILQ_FIRST(&events)) {
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		LOG_DBG((LOG_TIMER, 10,
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		    "timer_handle_expirations: event %s(%p)", n->name,
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		    n->arg));
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		TAILQ_REMOVE(&events, n, link);
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		(*n->func)(n->arg);
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		free(n);
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	}
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}
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struct event *
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timer_add_event(char *name, void (*func)(void *), void *arg,
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    struct timeval *expiration)
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{
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	struct event   *ev = malloc(sizeof *ev);
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	struct event   *n;
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	struct timeval  now;
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	if (!ev)
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		return 0;
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	ev->name = name;
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	ev->func = func;
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	ev->arg = arg;
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	gettimeofday(&now, 0);
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	memcpy(&ev->expiration, expiration, sizeof *expiration);
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	for (n = TAILQ_FIRST(&events);
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	    n && timercmp(expiration, &n->expiration, >=);
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	    n = TAILQ_NEXT(n, link))
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		;
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	if (n) {
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		LOG_DBG((LOG_TIMER, 10,
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		    "timer_add_event: event %s(%p) added before %s(%p), "
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		    "expiration in %llds", name, arg, n->name, n->arg,
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		    (long long)(expiration->tv_sec - now.tv_sec)));
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		TAILQ_INSERT_BEFORE(n, ev, link);
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	} else {
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		LOG_DBG((LOG_TIMER, 10, "timer_add_event: event %s(%p) added "
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		    "last, expiration in %ds", name, arg,
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		    (int)(expiration->tv_sec - now.tv_sec)));
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		TAILQ_INSERT_TAIL(&events, ev, link);
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	}
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	return ev;
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}
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void
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timer_remove_event(struct event *ev)
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{
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	LOG_DBG((LOG_TIMER, 10, "timer_remove_event: removing event %s(%p)",
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	    ev->name, ev->arg));
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	TAILQ_REMOVE(&events, ev, link);
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	free(ev);
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}
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void
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timer_report(void)
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{
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	struct event   *ev;
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	struct timeval  now;
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	gettimeofday(&now, 0);
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	for (ev = TAILQ_FIRST(&events); ev; ev = TAILQ_NEXT(ev, link))
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		LOG_DBG((LOG_REPORT, 0,
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		    "timer_report: event %s(%p) scheduled in %d seconds",
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		    (ev->name ? ev->name : "<unknown>"), ev,
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		    (int) (ev->expiration.tv_sec - now.tv_sec)));
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}