File: [local] / src / sbin / isakmpd / timer.c (download)
Revision 1.7, Fri Feb 25 17:23:41 2000 UTC (24 years, 3 months ago) by niklas
Branch: MAIN
CVS Tags: OPENBSD_2_9_BASE, OPENBSD_2_9, OPENBSD_2_8_BASE, OPENBSD_2_8, OPENBSD_2_7_BASE, OPENBSD_2_7 Changes since 1.6: +17 -17 lines
regress/crypto/Makefile: Merge with EOM 1.5
regress/dh/Makefile: Merge with EOM 1.7
regress/group/Makefile: Merge with EOM 1.9
regress/prf/Makefile: Merge with EOM 1.4
regress/rsakeygen/Makefile: Merge with EOM 1.8
regress/x509/Makefile: Merge with EOM 1.10
Makefile: Merge with EOM 1.62
attribute.c: Merge with EOM 1.10
sa.c: Merge with EOM 1.99
conf.c: Merge with EOM 1.20
crypto.c: Merge with EOM 1.28
isakmpd.c: Merge with EOM 1.45
connection.c: Merge with EOM 1.19
doi.h: Merge with EOM 1.28
field.c: Merge with EOM 1.11
exchange.c: Merge with EOM 1.116
ike_auth.c: Merge with EOM 1.44
pf_key_v2.c: Merge with EOM 1.37
ike_phase_1.c: Merge with EOM 1.22
ipsec.c: Merge with EOM 1.118
isakmp_doi.c: Merge with EOM 1.40
log.c: Merge with EOM 1.26
log.h: Merge with EOM 1.18
math_group.c: Merge with EOM 1.23
message.c: Merge with EOM 1.144
pf_encap.c: Merge with EOM 1.70
policy.c: Merge with EOM 1.18
timer.c: Merge with EOM 1.13
transport.c: Merge with EOM 1.41
udp.c: Merge with EOM 1.47
ui.c: Merge with EOM 1.37
x509.c: Merge with EOM 1.36
author: niklas
Made debug logging a compile time selectable feature
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/* $OpenBSD: timer.c,v 1.7 2000/02/25 17:23:41 niklas Exp $ */
/* $EOM: timer.c,v 1.13 2000/02/20 19:58:42 niklas Exp $ */
/*
* Copyright (c) 1998, 1999 Niklas Hallqvist. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Ericsson Radio Systems.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
/*
* This code was written under funding by Ericsson Radio Systems.
*/
#include <sys/queue.h>
#include <stdlib.h>
#include <string.h>
#include "sysdep.h"
#include "log.h"
#include "timer.h"
static TAILQ_HEAD (event_list, event) events;
void
timer_init ()
{
TAILQ_INIT (&events);
}
void
timer_next_event (struct timeval **timeout)
{
struct timeval now;
if (TAILQ_FIRST (&events))
{
gettimeofday (&now, 0);
if (timercmp (&now, &TAILQ_FIRST (&events)->expiration, >=))
timerclear (*timeout);
else
timersub (&TAILQ_FIRST (&events)->expiration, &now, *timeout);
}
else
*timeout = 0;
}
void
timer_handle_expirations ()
{
struct timeval now;
struct event *n;
gettimeofday (&now, 0);
for (n = TAILQ_FIRST (&events); n && timercmp (&now, &n->expiration, >=);
n = TAILQ_FIRST (&events))
{
LOG_DBG ((LOG_TIMER, 10,
"timer_handle_expirations: event %s(%p)", n->name, n->arg));
TAILQ_REMOVE (&events, n, link);
(*n->func) (n->arg);
free (n);
}
}
struct event *
timer_add_event (char *name, void (*func) (void *), void *arg,
struct timeval *expiration)
{
struct event *ev = (struct event *)malloc (sizeof *ev);
struct event *n;
struct timeval now;
if (!ev)
return 0;
ev->name = name;
ev->func = func;
ev->arg = arg;
gettimeofday (&now, 0);
memcpy (&ev->expiration, expiration, sizeof *expiration);
for (n = TAILQ_FIRST (&events);
n && timercmp (expiration, &n->expiration, >=);
n = TAILQ_NEXT (n, link))
;
if (n)
{
LOG_DBG ((LOG_TIMER, 10,
"timer_add_event: event %s(%p) added before %s(%p), "
"expiration in %ds", name,
arg, n->name, n->arg, expiration->tv_sec - now.tv_sec));
TAILQ_INSERT_BEFORE (n, ev, link);
}
else
{
LOG_DBG ((LOG_TIMER, 10, "timer_add_event: event %s(%p) added last, "
"expiration in %ds", name, arg,
expiration->tv_sec - now.tv_sec));
TAILQ_INSERT_TAIL (&events, ev, link);
}
return ev;
}
void
timer_remove_event (struct event *ev)
{
LOG_DBG ((LOG_TIMER, 10, "timer_remove_event: removing event %s(%p)",
ev->name, ev->arg));
TAILQ_REMOVE (&events, ev, link);
free (ev);
}
void
timer_report (void)
{
struct event *ev;
struct timeval now;
gettimeofday (&now, 0);
for (ev = TAILQ_FIRST (&events); ev; ev = TAILQ_NEXT (ev, link))
LOG_DBG ((LOG_REPORT, 0,
"timer_report: event %s(%p) scheduled in %d seconds",
(ev->name ? ev->name : "<unknown>"), ev,
(int)(ev->expiration.tv_sec - now.tv_sec)));
}