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Code Issues Releases Wiki Activity

allow timer to be inactive; use isc_task_purgerange

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This commit is contained in:
Bob Halley
1999-05-10 22:50:31 +00:00
parent d6b0e99380
commit d13284da19
2 changed files with 51 additions and 16 deletions
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49
lib/isc/timer.c
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@@ -98,6 +98,8 @@ schedule(isc_timer_t *timer, isc_time_t *now, isc_boolean_t signal_ok) {
* Note: the caller must ensure locking.
*/
REQUIRE(timer->type != isc_timertype_inactive);
/*
* Compute the new due time.
*/
@@ -190,12 +192,15 @@ destroy(isc_timer_t *timer) {
isc_timermgr_t *manager = timer->manager;
/*
* The caller must ensure locking.
* The caller must ensure it is safe to destroy the timer.
*/
LOCK(&manager->lock);
isc_task_purge(timer->task, timer, ISC_TASKEVENT_ANYEVENT);
isc_task_purgerange(timer->task,
timer,
ISC_TASKEVENT_FIRSTEVENT,
ISC_TASKEVENT_LASTEVENT);
deschedule(timer);
UNLINK(manager->timers, timer, link);
@@ -229,7 +234,9 @@ isc_timer_create(isc_timermgr_t *manager, isc_timertype_t type,
REQUIRE(VALID_MANAGER(manager));
REQUIRE(task != NULL);
REQUIRE(action != NULL);
REQUIRE(!(isc_time_isepoch(expires) && isc_interval_iszero(interval)));
REQUIRE((type == isc_timertype_inactive &&
expires == NULL && interval == NULL) ||
!(isc_time_isepoch(expires) && isc_interval_iszero(interval)));
REQUIRE(timerp != NULL && *timerp == NULL);
/*
@@ -279,10 +286,13 @@ isc_timer_create(isc_timermgr_t *manager, isc_timertype_t type,
* there are no external references to it yet.
*/
result = schedule(timer, &now, ISC_TRUE);
if (type != isc_timertype_inactive)
result = schedule(timer, &now, ISC_TRUE);
else
result = ISC_R_SUCCESS;
if (result == ISC_R_SUCCESS)
APPEND(manager->timers, timer, link);
UNLOCK(&manager->lock);
if (result != ISC_R_SUCCESS) {
@@ -316,7 +326,9 @@ isc_timer_reset(isc_timer_t *timer, isc_timertype_t type,
REQUIRE(VALID_TIMER(timer));
manager = timer->manager;
REQUIRE(VALID_MANAGER(manager));
REQUIRE(!(isc_time_isepoch(expires) && isc_interval_iszero(interval)));
REQUIRE((type == isc_timertype_inactive &&
expires == NULL && interval == NULL) ||
!(isc_time_isepoch(expires) && isc_interval_iszero(interval)));
/*
* Get current time.
@@ -335,7 +347,10 @@ isc_timer_reset(isc_timer_t *timer, isc_timertype_t type,
LOCK(&timer->lock);
if (purge)
isc_task_purge(timer->task, timer, ISC_TASKEVENT_ANYEVENT);
isc_task_purgerange(timer->task,
timer,
ISC_TASKEVENT_FIRSTEVENT,
ISC_TASKEVENT_LASTEVENT);
timer->type = type;
timer->expires = *expires;
timer->interval = *interval;
@@ -343,7 +358,11 @@ isc_timer_reset(isc_timer_t *timer, isc_timertype_t type,
isc_time_add(&now, interval, &timer->idle);
else
isc_time_settoepoch(&timer->idle);
result = schedule(timer, &now, ISC_TRUE);
if (type == isc_timertype_inactive) {
deschedule(timer);
result = ISC_R_SUCCESS;
} else
result = schedule(timer, &now, ISC_TRUE);
UNLOCK(&timer->lock);
UNLOCK(&manager->lock);
@@ -364,7 +383,14 @@ isc_timer_touch(isc_timer_t *timer) {
LOCK(&timer->lock);
INSIST(timer->type == isc_timertype_once);
/*
* We'd like to
*
* REQUIRE(timer->type == isc_timertype_once);
*
* but we cannot without locking the manager lock too, which we
* don't want to do.
*/
result = isc_time_get(&now);
if (result != ISC_R_SUCCESS) {
@@ -430,8 +456,13 @@ dispatch(isc_timermgr_t *manager, isc_time_t *now) {
isc_timer_t *timer;
isc_result_t result;
/*
* The caller must be holding the manager lock.
*/
while (manager->nscheduled > 0 && !done) {
timer = isc_heap_element(manager->heap, 1);
INSIST(timer->type != isc_timertype_inactive);
if (isc_time_compare(now, &timer->due) >= 0) {
if (timer->type == isc_timertype_ticker) {
type = ISC_TIMEREVENT_TICK;