aboutsummaryrefslogtreecommitdiff
path: root/src/racoon/schedule.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/racoon/schedule.c')
-rw-r--r--src/racoon/schedule.c364
1 files changed, 0 insertions, 364 deletions
diff --git a/src/racoon/schedule.c b/src/racoon/schedule.c
deleted file mode 100644
index 04723c5..0000000
--- a/src/racoon/schedule.c
+++ /dev/null
@@ -1,364 +0,0 @@
-/* $NetBSD: schedule.c,v 1.4 2006/09/09 16:22:10 manu Exp $ */
-
-/* $KAME: schedule.c,v 1.19 2001/11/05 10:53:19 sakane Exp $ */
-
-/*
- * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
- * 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. Neither the name of the project nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE PROJECT 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 PROJECT 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 "config.h"
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/queue.h>
-#include <sys/socket.h>
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <time.h>
-
-#include "misc.h"
-#include "plog.h"
-#include "schedule.h"
-#include "var.h"
-#include "gcmalloc.h"
-
-#define FIXY2038PROBLEM
-
-#ifndef TAILQ_FOREACH
-#define TAILQ_FOREACH(elm, head, field) \
- for (elm = TAILQ_FIRST(head); elm; elm = TAILQ_NEXT(elm, field))
-#endif
-
-static struct timeval timeout;
-
-#ifdef FIXY2038PROBLEM
-#define Y2038TIME_T 0x7fffffff
-static time_t launched; /* time when the program launched. */
-static time_t deltaY2038;
-#endif
-
-static TAILQ_HEAD(_schedtree, sched) sctree;
-
-static void sched_add __P((struct sched *));
-static time_t current_time __P((void));
-
-/*
- * schedule handler
- * OUT:
- * time to block until next event.
- * if no entry, NULL returned.
- */
-struct timeval *
-schedular()
-{
- time_t now, delta;
- struct sched *p, *next = NULL;
-
- now = current_time();
-
- for (p = TAILQ_FIRST(&sctree); p; p = next) {
- /* if the entry has been daed, remove it */
- if (p->dead)
- goto next_schedule;
-
- /* if the time hasn't come, proceed to the next entry */
- if (now < p->xtime) {
- next = TAILQ_NEXT(p, chain);
- continue;
- }
-
- /* mark it with dead. and call the function. */
- p->dead = 1;
- if (p->func != NULL)
- (p->func)(p->param);
-
- next_schedule:
- next = TAILQ_NEXT(p, chain);
- TAILQ_REMOVE(&sctree, p, chain);
- racoon_free(p);
- }
-
- p = TAILQ_FIRST(&sctree);
- if (p == NULL)
- return NULL;
-
- now = current_time();
-
- delta = p->xtime - now;
- timeout.tv_sec = delta < 0 ? 0 : delta;
- timeout.tv_usec = 0;
-
- return &timeout;
-}
-
-/*
- * add new schedule to schedule table.
- */
-struct sched *
-sched_new(tick, func, param)
- time_t tick;
- void (*func) __P((void *));
- void *param;
-{
- static long id = 1;
- struct sched *new;
-
- new = (struct sched *)racoon_malloc(sizeof(*new));
- if (new == NULL)
- return NULL;
-
- memset(new, 0, sizeof(*new));
- new->func = func;
- new->param = param;
-
- new->id = id++;
- time(&new->created);
- new->tick = tick;
-
- new->xtime = current_time() + tick;
- new->dead = 0;
-
- /* add to schedule table */
- sched_add(new);
-
- return(new);
-}
-
-/* add new schedule to schedule table */
-static void
-sched_add(sc)
- struct sched *sc;
-{
- struct sched *p;
-
- TAILQ_FOREACH(p, &sctree, chain) {
- if (sc->xtime < p->xtime) {
- TAILQ_INSERT_BEFORE(p, sc, chain);
- return;
- }
- }
- if (p == NULL)
- TAILQ_INSERT_TAIL(&sctree, sc, chain);
-
- return;
-}
-
-/* get current time.
- * if defined FIXY2038PROBLEM, base time is the time when called sched_init().
- * Otherwise, conform to time(3).
- */
-static time_t
-current_time()
-{
- time_t n;
-#ifdef FIXY2038PROBLEM
- time_t t;
-
- time(&n);
- t = n - launched;
- if (t < 0)
- t += deltaY2038;
-
- return t;
-#else
- return time(&n);
-#endif
-}
-
-void
-sched_kill(sc)
- struct sched *sc;
-{
- sc->dead = 1;
-
- return;
-}
-
-/* XXX this function is probably unnecessary. */
-void
-sched_scrub_param(param)
- void *param;
-{
- struct sched *sc;
-
- TAILQ_FOREACH(sc, &sctree, chain) {
- if (sc->param == param) {
- if (!sc->dead) {
- plog(LLV_DEBUG, LOCATION, NULL,
- "an undead schedule has been deleted.\n");
- }
- sched_kill(sc);
- }
- }
-}
-
-/*
- * for debug
- */
-int
-sched_dump(buf, len)
- caddr_t *buf;
- int *len;
-{
- caddr_t new;
- struct sched *p;
- struct scheddump *dst;
- int cnt = 0;
-
- /* initialize */
- *len = 0;
- *buf = NULL;
-
- TAILQ_FOREACH(p, &sctree, chain)
- cnt++;
-
- /* no entry */
- if (cnt == 0)
- return -1;
-
- *len = cnt * sizeof(*dst);
-
- new = racoon_malloc(*len);
- if (new == NULL)
- return -1;
- dst = (struct scheddump *)new;
-
- p = TAILQ_FIRST(&sctree);
- while (p) {
- dst->xtime = p->xtime;
- dst->id = p->id;
- dst->created = p->created;
- dst->tick = p->tick;
-
- p = TAILQ_NEXT(p, chain);
- if (p == NULL)
- break;
- dst++;
- }
-
- *buf = new;
-
- return 0;
-}
-
-/* initialize schedule table */
-void
-sched_init()
-{
-#ifdef FIXY2038PROBLEM
- time(&launched);
-
- deltaY2038 = Y2038TIME_T - launched;
-#endif
-
- TAILQ_INIT(&sctree);
-
- return;
-}
-
-#ifdef STEST
-#include <sys/types.h>
-#include <sys/time.h>
-#include <unistd.h>
-#include <err.h>
-
-void
-test(tick)
- int *tick;
-{
- printf("execute %d\n", *tick);
- racoon_free(tick);
-}
-
-void
-getstdin()
-{
- int *tick;
- char buf[16];
-
- read(0, buf, sizeof(buf));
- if (buf[0] == 'd') {
- struct scheddump *scbuf, *p;
- int len;
- sched_dump((caddr_t *)&scbuf, &len);
- if (scbuf == NULL)
- return;
- for (p = scbuf; len; p++) {
- printf("xtime=%ld\n", p->xtime);
- len -= sizeof(*p);
- }
- racoon_free(scbuf);
- return;
- }
-
- tick = (int *)racoon_malloc(sizeof(*tick));
- *tick = atoi(buf);
- printf("new queue tick = %d\n", *tick);
- sched_new(*tick, test, tick);
-}
-
-int
-main()
-{
- static fd_set mask0;
- int nfds = 0;
- fd_set rfds;
- struct timeval *timeout;
- int error;
-
- FD_ZERO(&mask0);
- FD_SET(0, &mask0);
- nfds = 1;
-
- /* initialize */
- sched_init();
-
- while (1) {
- rfds = mask0;
-
- timeout = schedular();
-
- error = select(nfds, &rfds, (fd_set *)0, (fd_set *)0, timeout);
- if (error < 0) {
- switch (errno) {
- case EINTR: continue;
- default:
- err(1, "select");
- }
- /*NOTREACHED*/
- }
-
- if (FD_ISSET(0, &rfds))
- getstdin();
- }
-}
-#endif