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Diffstat (limited to 'src/core/timer.c')
-rw-r--r--src/core/timer.c196
1 files changed, 133 insertions, 63 deletions
diff --git a/src/core/timer.c b/src/core/timer.c
index 7080b32c6b..54c0d0b330 100644
--- a/src/core/timer.c
+++ b/src/core/timer.c
@@ -42,7 +42,10 @@ static void timer_init(Unit *u) {
assert(u);
assert(u->load_state == UNIT_STUB);
- t->next_elapse = (usec_t) -1;
+ t->next_elapse_monotonic = (usec_t) -1;
+ t->next_elapse_realtime = (usec_t) -1;
+ watch_init(&t->monotonic_watch);
+ watch_init(&t->realtime_watch);
}
static void timer_done(Unit *u) {
@@ -53,10 +56,15 @@ static void timer_done(Unit *u) {
while ((v = t->values)) {
LIST_REMOVE(TimerValue, value, t->values, v);
+
+ if (v->calendar_spec)
+ calendar_spec_free(v->calendar_spec);
+
free(v);
}
- unit_unwatch_timer(u, &t->timer_watch);
+ unit_unwatch_timer(u, &t->monotonic_watch);
+ unit_unwatch_timer(u, &t->realtime_watch);
unit_ref_unset(&t->unit);
}
@@ -81,10 +89,12 @@ static int timer_add_default_dependencies(Timer *t) {
assert(t);
if (UNIT(t)->manager->running_as == SYSTEMD_SYSTEM) {
- if ((r = unit_add_dependency_by_name(UNIT(t), UNIT_BEFORE, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
+ r = unit_add_dependency_by_name(UNIT(t), UNIT_BEFORE, SPECIAL_BASIC_TARGET, NULL, true);
+ if (r < 0)
return r;
- if ((r = unit_add_two_dependencies_by_name(UNIT(t), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true)) < 0)
+ r = unit_add_two_dependencies_by_name(UNIT(t), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true);
+ if (r < 0)
return r;
}
@@ -98,7 +108,8 @@ static int timer_load(Unit *u) {
assert(u);
assert(u->load_state == UNIT_STUB);
- if ((r = unit_load_fragment_and_dropin(u)) < 0)
+ r = unit_load_fragment_and_dropin(u);
+ if (r < 0)
return r;
if (u->load_state == UNIT_LOADED) {
@@ -117,9 +128,11 @@ static int timer_load(Unit *u) {
if (r < 0)
return r;
- if (UNIT(t)->default_dependencies)
- if ((r = timer_add_default_dependencies(t)) < 0)
+ if (UNIT(t)->default_dependencies) {
+ r = timer_add_default_dependencies(t);
+ if (r < 0)
return r;
+ }
}
return timer_verify(t);
@@ -128,8 +141,6 @@ static int timer_load(Unit *u) {
static void timer_dump(Unit *u, FILE *f, const char *prefix) {
Timer *t = TIMER(u);
TimerValue *v;
- char
- timespan1[FORMAT_TIMESPAN_MAX];
fprintf(f,
"%sTimer State: %s\n"
@@ -139,12 +150,28 @@ static void timer_dump(Unit *u, FILE *f, const char *prefix) {
prefix, timer_result_to_string(t->result),
prefix, UNIT_DEREF(t->unit)->id);
- LIST_FOREACH(value, v, t->values)
- fprintf(f,
- "%s%s: %s\n",
- prefix,
- timer_base_to_string(v->base),
- strna(format_timespan(timespan1, sizeof(timespan1), v->value)));
+ LIST_FOREACH(value, v, t->values) {
+
+ if (v->base == TIMER_CALENDAR) {
+ _cleanup_free_ char *p = NULL;
+
+ calendar_spec_to_string(v->calendar_spec, &p);
+
+ fprintf(f,
+ "%s%s: %s\n",
+ prefix,
+ timer_base_to_string(v->base),
+ strna(p));
+ } else {
+ char timespan1[FORMAT_TIMESPAN_MAX];
+
+ fprintf(f,
+ "%s%s: %s\n",
+ prefix,
+ timer_base_to_string(v->base),
+ strna(format_timespan(timespan1, sizeof(timespan1), v->value)));
+ }
+ }
}
static void timer_set_state(Timer *t, TimerState state) {
@@ -154,8 +181,10 @@ static void timer_set_state(Timer *t, TimerState state) {
old_state = t->state;
t->state = state;
- if (state != TIMER_WAITING)
- unit_unwatch_timer(UNIT(t), &t->timer_watch);
+ if (state != TIMER_WAITING) {
+ unit_unwatch_timer(UNIT(t), &t->monotonic_watch);
+ unit_unwatch_timer(UNIT(t), &t->realtime_watch);
+ }
if (state != old_state)
log_debug("%s changed %s -> %s",
@@ -196,79 +225,117 @@ static void timer_enter_dead(Timer *t, TimerResult f) {
static void timer_enter_waiting(Timer *t, bool initial) {
TimerValue *v;
- usec_t base = 0, delay, n;
- bool found = false;
+ usec_t base = 0;
+ dual_timestamp ts;
+ bool found_monotonic = false, found_realtime = false;
int r;
- n = now(CLOCK_MONOTONIC);
+ dual_timestamp_get(&ts);
+ t->next_elapse_monotonic = t->next_elapse_realtime = 0;
LIST_FOREACH(value, v, t->values) {
if (v->disabled)
continue;
- switch (v->base) {
+ if (v->base == TIMER_CALENDAR) {
+
+ r = calendar_spec_next_usec(v->calendar_spec, ts.realtime, &v->next_elapse);
+ if (r < 0)
+ continue;
+
+ if (!initial && v->next_elapse < ts.realtime) {
+ v->disabled = true;
+ continue;
+ }
- case TIMER_ACTIVE:
- if (state_translation_table[t->state] == UNIT_ACTIVE)
- base = UNIT(t)->inactive_exit_timestamp.monotonic;
+ if (!found_realtime)
+ t->next_elapse_realtime = v->next_elapse;
else
- base = n;
- break;
+ t->next_elapse_realtime = MIN(t->next_elapse_realtime, v->next_elapse);
- case TIMER_BOOT:
- /* CLOCK_MONOTONIC equals the uptime on Linux */
- base = 0;
- break;
+ found_realtime = true;
- case TIMER_STARTUP:
- base = UNIT(t)->manager->userspace_timestamp.monotonic;
- break;
+ } else {
+ switch (v->base) {
- case TIMER_UNIT_ACTIVE:
+ case TIMER_ACTIVE:
+ if (state_translation_table[t->state] == UNIT_ACTIVE)
+ base = UNIT(t)->inactive_exit_timestamp.monotonic;
+ else
+ base = ts.monotonic;
+ break;
- if (UNIT_DEREF(t->unit)->inactive_exit_timestamp.monotonic <= 0)
- continue;
+ case TIMER_BOOT:
+ /* CLOCK_MONOTONIC equals the uptime on Linux */
+ base = 0;
+ break;
- base = UNIT_DEREF(t->unit)->inactive_exit_timestamp.monotonic;
- break;
+ case TIMER_STARTUP:
+ base = UNIT(t)->manager->userspace_timestamp.monotonic;
+ break;
- case TIMER_UNIT_INACTIVE:
+ case TIMER_UNIT_ACTIVE:
- if (UNIT_DEREF(t->unit)->inactive_enter_timestamp.monotonic <= 0)
- continue;
+ if (UNIT_DEREF(t->unit)->inactive_exit_timestamp.monotonic <= 0)
+ continue;
- base = UNIT_DEREF(t->unit)->inactive_enter_timestamp.monotonic;
- break;
+ base = UNIT_DEREF(t->unit)->inactive_exit_timestamp.monotonic;
+ break;
- default:
- assert_not_reached("Unknown timer base");
- }
+ case TIMER_UNIT_INACTIVE:
- v->next_elapse = base + v->value;
+ if (UNIT_DEREF(t->unit)->inactive_enter_timestamp.monotonic <= 0)
+ continue;
- if (!initial && v->next_elapse < n) {
- v->disabled = true;
- continue;
- }
+ base = UNIT_DEREF(t->unit)->inactive_enter_timestamp.monotonic;
+ break;
- if (!found)
- t->next_elapse = v->next_elapse;
- else
- t->next_elapse = MIN(t->next_elapse, v->next_elapse);
+ default:
+ assert_not_reached("Unknown timer base");
+ }
- found = true;
+ v->next_elapse = base + v->value;
+
+ if (!initial && v->next_elapse < ts.monotonic) {
+ v->disabled = true;
+ continue;
+ }
+
+ if (!found_monotonic)
+ t->next_elapse_monotonic = v->next_elapse;
+ else
+ t->next_elapse_monotonic = MIN(t->next_elapse_monotonic, v->next_elapse);
+
+ found_monotonic = true;
+ }
}
- if (!found) {
+ if (!found_monotonic && !found_realtime) {
+ log_debug("%s: Timer is elapsed.", UNIT(t)->id);
timer_set_state(t, TIMER_ELAPSED);
return;
}
- delay = n < t->next_elapse ? t->next_elapse - n : 0;
+ if (found_monotonic) {
+ char buf[FORMAT_TIMESPAN_MAX];
+ log_debug("%s: Monotonic timer elapses in %s the next time.", UNIT(t)->id, format_timespan(buf, sizeof(buf), t->next_elapse_monotonic - ts.monotonic));
- if ((r = unit_watch_timer(UNIT(t), delay, &t->timer_watch)) < 0)
- goto fail;
+ r = unit_watch_timer(UNIT(t), CLOCK_MONOTONIC, false, t->next_elapse_monotonic, &t->monotonic_watch);
+ if (r < 0)
+ goto fail;
+ } else
+ unit_unwatch_timer(UNIT(t), &t->monotonic_watch);
+
+ if (found_realtime) {
+ char buf[FORMAT_TIMESTAMP_MAX];
+ log_debug("%s: Realtime timer elapses at %s the next time.", UNIT(t)->id, format_timestamp(buf, sizeof(buf), t->next_elapse_realtime));
+
+ r = unit_watch_timer(UNIT(t), CLOCK_REALTIME, false, t->next_elapse_realtime, &t->realtime_watch);
+ if (r < 0)
+ goto fail;
+ } else
+ unit_unwatch_timer(UNIT(t), &t->realtime_watch);
timer_set_state(t, TIMER_WAITING);
return;
@@ -289,7 +356,8 @@ static void timer_enter_running(Timer *t) {
if (UNIT(t)->job && UNIT(t)->job->type == JOB_STOP)
return;
- if ((r = manager_add_job(UNIT(t)->manager, JOB_START, UNIT_DEREF(t->unit), JOB_REPLACE, true, &error, NULL)) < 0)
+ r = manager_add_job(UNIT(t)->manager, JOB_START, UNIT_DEREF(t->unit), JOB_REPLACE, true, &error, NULL);
+ if (r < 0)
goto fail;
timer_set_state(t, TIMER_RUNNING);
@@ -350,7 +418,8 @@ static int timer_deserialize_item(Unit *u, const char *key, const char *value, F
if (streq(key, "state")) {
TimerState state;
- if ((state = timer_state_from_string(value)) < 0)
+ state = timer_state_from_string(value);
+ if (state < 0)
log_debug("Failed to parse state value %s", value);
else
t->deserialized_state = state;
@@ -473,7 +542,8 @@ static const char* const timer_base_table[_TIMER_BASE_MAX] = {
[TIMER_BOOT] = "OnBootSec",
[TIMER_STARTUP] = "OnStartupSec",
[TIMER_UNIT_ACTIVE] = "OnUnitActiveSec",
- [TIMER_UNIT_INACTIVE] = "OnUnitInactiveSec"
+ [TIMER_UNIT_INACTIVE] = "OnUnitInactiveSec",
+ [TIMER_CALENDAR] = "OnCalendar"
};
DEFINE_STRING_TABLE_LOOKUP(timer_base, TimerBase);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-06 15:42:28 +0000