[src/trunk]: src/usr.sbin/rtadvd Allow timers to exist but be inactive.

[roy <roy%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/3b3abd3972fc
branches:  trunk
changeset: 831926:3b3abd3972fc
user:      roy <roy%NetBSD.org@localhost>
date:      Fri Apr 20 13:27:45 2018 +0000

description:
Allow timers to exist but be inactive.
This will be used in a future commit.

diffstat:

 usr.sbin/rtadvd/timer.c |  15 +++++++++++----
 usr.sbin/rtadvd/timer.h |   3 ++-
 2 files changed, 13 insertions(+), 5 deletions(-)

diffs (67 lines):

diff -r 8708a8fee4da -r 3b3abd3972fc usr.sbin/rtadvd/timer.c
--- a/usr.sbin/rtadvd/timer.c   Fri Apr 20 11:31:54 2018 +0000
+++ b/usr.sbin/rtadvd/timer.c   Fri Apr 20 13:27:45 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: timer.c,v 1.15 2018/04/20 10:39:37 roy Exp $   */
+/*     $NetBSD: timer.c,v 1.16 2018/04/20 13:27:45 roy Exp $   */
 /*     $KAME: timer.c,v 1.11 2005/04/14 06:22:35 suz Exp $     */
 
 /*
@@ -36,6 +36,7 @@
 #include <limits.h>
 #include <unistd.h>
 #include <syslog.h>
+#include <stdbool.h>
 #include <stdlib.h>
 #include <string.h>
 #include <search.h>
@@ -110,6 +111,9 @@
        /* upate the next expiration time */
        if (timespeccmp(&timer->tm, &tm_max, <))
                tm_max = timer->tm;
+
+       /* enable the timer */
+       timer->enabled = true;
 }
 
 /*
@@ -128,6 +132,8 @@
        tm_max = tm_limit;
 
        TAILQ_FOREACH_SAFE(tm, &ra_timer, next, tmn) {
+               if (!tm->enabled)
+                       continue;
                if (timespeccmp(&tm->tm, &now, <=)) {
                        if ((*tm->expire)(tm->expire_data) == NULL)
                                continue; /* the timer was removed */
@@ -157,9 +163,10 @@
 
        prog_clock_gettime(CLOCK_MONOTONIC, &now);
        if (timespeccmp(&timer->tm, &now, <=)) {
-               logit(LOG_DEBUG,
-                      "<%s> a timer must be expired, but not yet",
-                      __func__);
+               if (timer->enabled)
+                       logit(LOG_DEBUG,
+                              "<%s> a timer must be expired, but not yet",
+                              __func__);
                returnval.tv_sec = 0;
                returnval.tv_nsec = 0;
        }
diff -r 8708a8fee4da -r 3b3abd3972fc usr.sbin/rtadvd/timer.h
--- a/usr.sbin/rtadvd/timer.h   Fri Apr 20 11:31:54 2018 +0000
+++ b/usr.sbin/rtadvd/timer.h   Fri Apr 20 13:27:45 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: timer.h,v 1.9 2018/04/20 10:39:37 roy Exp $    */
+/*     $NetBSD: timer.h,v 1.10 2018/04/20 13:27:45 roy Exp $   */
 /*     $KAME: timer.h,v 1.5 2002/05/31 13:30:38 jinmei Exp $   */
 
 /*
@@ -35,6 +35,7 @@
        TAILQ_ENTRY(rtadvd_timer) next;
        struct rainfo *rai;
        struct timespec tm;
+       bool enabled;
 
        struct rtadvd_timer *(*expire) (void *); /* expiration function */
        void *expire_data;