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-rw-r--r--src/core/dbus-timer.c40
-rw-r--r--src/core/load-fragment-gperf.gperf.m41
-rw-r--r--src/core/load-fragment.c6
-rw-r--r--src/core/timer.c61
-rw-r--r--src/core/timer.h7
5 files changed, 86 insertions, 29 deletions
diff --git a/src/core/dbus-timer.c b/src/core/dbus-timer.c
index c9b80a0b2..f1f8c5438 100644
--- a/src/core/dbus-timer.c
+++ b/src/core/dbus-timer.c
@@ -135,17 +135,51 @@ static int property_get_unit(
return sd_bus_message_append(reply, "s", trigger ? trigger->id : "");
}
+static int property_get_next_elapse_monotonic(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Timer *t = userdata;
+ usec_t x;
+
+ assert(bus);
+ assert(reply);
+ assert(t);
+
+ if (t->next_elapse_monotonic_or_boottime <= 0)
+ x = 0;
+ else if (t->wake_system) {
+ usec_t a, b;
+
+ a = now(CLOCK_MONOTONIC);
+ b = now(CLOCK_BOOTTIME);
+
+ if (t->next_elapse_monotonic_or_boottime + a > b)
+ x = t->next_elapse_monotonic_or_boottime + a - b;
+ else
+ x = 0;
+ } else
+ x = t->next_elapse_monotonic_or_boottime;
+
+ return sd_bus_message_append(reply, "t", x);
+}
+
const sd_bus_vtable bus_timer_vtable[] = {
SD_BUS_VTABLE_START(0),
SD_BUS_PROPERTY("Unit", "s", property_get_unit, 0, SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("TimersMonotonic", "a(stt)", property_get_monotonic_timers, 0, SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
SD_BUS_PROPERTY("TimersCalendar", "a(sst)", property_get_calendar_timers, 0, SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
SD_BUS_PROPERTY("NextElapseUSecRealtime", "t", bus_property_get_usec, offsetof(Timer, next_elapse_realtime), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
- SD_BUS_PROPERTY("NextElapseUSecMonotonic", "t", bus_property_get_usec, offsetof(Timer, next_elapse_monotonic), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
- SD_BUS_PROPERTY("LastTriggerUSecRealtime", "t", bus_property_get_usec, offsetof(Timer, last_trigger.realtime), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
- SD_BUS_PROPERTY("LastTriggerUSecMonotonic", "t", bus_property_get_usec, offsetof(Timer, last_trigger.monotonic), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("NextElapseUSecMonotonic", "t", property_get_next_elapse_monotonic, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ BUS_PROPERTY_DUAL_TIMESTAMP("LastTriggerUSec", offsetof(Timer, last_trigger), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Timer, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("AccuracyUSec", "t", bus_property_get_usec, offsetof(Timer, accuracy_usec), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("Persistent", "b", bus_property_get_bool, offsetof(Timer, persistent), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("WakeSystem", "b", bus_property_get_bool, offsetof(Timer, wake_system), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_VTABLE_END
};
diff --git a/src/core/load-fragment-gperf.gperf.m4 b/src/core/load-fragment-gperf.gperf.m4
index 55fd3da04..3a77234e9 100644
--- a/src/core/load-fragment-gperf.gperf.m4
+++ b/src/core/load-fragment-gperf.gperf.m4
@@ -286,6 +286,7 @@ Timer.OnStartupSec, config_parse_timer, 0,
Timer.OnUnitActiveSec, config_parse_timer, 0, 0
Timer.OnUnitInactiveSec, config_parse_timer, 0, 0
Timer.Persistent, config_parse_bool, 0, offsetof(Timer, persistent)
+Timer.WakeSystem, config_parse_bool, 0, offsetof(Timer, wake_system)
Timer.AccuracySec, config_parse_sec, 0, offsetof(Timer, accuracy_usec)
Timer.Unit, config_parse_trigger_unit, 0, 0
m4_dnl
diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
index fa4e931b2..e7779d162 100644
--- a/src/core/load-fragment.c
+++ b/src/core/load-fragment.c
@@ -1254,7 +1254,6 @@ int config_parse_timer(const char *unit,
TimerValue *v;
TimerBase b;
CalendarSpec *c = NULL;
- clockid_t id;
assert(filename);
assert(lvalue);
@@ -1281,8 +1280,6 @@ int config_parse_timer(const char *unit,
rvalue);
return 0;
}
-
- id = CLOCK_REALTIME;
} else {
if (parse_sec(rvalue, &u) < 0) {
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
@@ -1290,8 +1287,6 @@ int config_parse_timer(const char *unit,
rvalue);
return 0;
}
-
- id = CLOCK_MONOTONIC;
}
v = new0(TimerValue, 1);
@@ -1299,7 +1294,6 @@ int config_parse_timer(const char *unit,
return log_oom();
v->base = b;
- v->clock_id = id;
v->value = u;
v->calendar_spec = c;
diff --git a/src/core/timer.c b/src/core/timer.c
index 95416f3e7..62baf5785 100644
--- a/src/core/timer.c
+++ b/src/core/timer.c
@@ -46,7 +46,7 @@ static void timer_init(Unit *u) {
assert(u);
assert(u->load_state == UNIT_STUB);
- t->next_elapse_monotonic = (usec_t) -1;
+ t->next_elapse_monotonic_or_boottime = (usec_t) -1;
t->next_elapse_realtime = (usec_t) -1;
t->accuracy_usec = USEC_PER_MINUTE;
}
@@ -203,10 +203,14 @@ static void timer_dump(Unit *u, FILE *f, const char *prefix) {
"%sTimer State: %s\n"
"%sResult: %s\n"
"%sUnit: %s\n"
+ "%sPersistent: %s\n"
+ "%sWakeSystem: %s\n"
"%sAccuracy: %s\n",
prefix, timer_state_to_string(t->state),
prefix, timer_result_to_string(t->result),
prefix, trigger ? trigger->id : "n/a",
+ prefix, yes_no(t->persistent),
+ prefix, yes_no(t->wake_system),
prefix, format_timespan(buf, sizeof(buf), t->accuracy_usec, 1));
LIST_FOREACH(value, v, t->values) {
@@ -282,15 +286,34 @@ static void timer_enter_dead(Timer *t, TimerResult f) {
timer_set_state(t, t->result != TIMER_SUCCESS ? TIMER_FAILED : TIMER_DEAD);
}
+static usec_t monotonic_to_boottime(usec_t t) {
+ usec_t a, b;
+
+ if (t <= 0)
+ return 0;
+
+ a = now(CLOCK_BOOTTIME);
+ b = now(CLOCK_MONOTONIC);
+
+ if (t + a > b)
+ return t + a - b;
+ else
+ return 0;
+}
+
static void timer_enter_waiting(Timer *t, bool initial) {
- TimerValue *v;
- usec_t base = 0;
- dual_timestamp ts;
bool found_monotonic = false, found_realtime = false;
+ usec_t ts_realtime, ts_monotonic;
+ usec_t base = 0;
+ TimerValue *v;
int r;
- dual_timestamp_get(&ts);
- t->next_elapse_monotonic = t->next_elapse_realtime = 0;
+ /* If we shall wake the system we use the boottime clock
+ * rather than the monotonic clock. */
+
+ ts_realtime = now(CLOCK_REALTIME);
+ ts_monotonic = now(t->wake_system ? CLOCK_BOOTTIME : CLOCK_MONOTONIC);
+ t->next_elapse_monotonic_or_boottime = t->next_elapse_realtime = 0;
LIST_FOREACH(value, v, t->values) {
@@ -305,7 +328,7 @@ static void timer_enter_waiting(Timer *t, bool initial) {
* to that. If we don't just start from
* now. */
- b = t->last_trigger.realtime > 0 ? t->last_trigger.realtime : ts.realtime;
+ b = t->last_trigger.realtime > 0 ? t->last_trigger.realtime : ts_realtime;
r = calendar_spec_next_usec(v->calendar_spec, b, &v->next_elapse);
if (r < 0)
@@ -325,7 +348,7 @@ static void timer_enter_waiting(Timer *t, bool initial) {
if (state_translation_table[t->state] == UNIT_ACTIVE)
base = UNIT(t)->inactive_exit_timestamp.monotonic;
else
- base = ts.monotonic;
+ base = ts_monotonic;
break;
case TIMER_BOOT:
@@ -365,18 +388,21 @@ static void timer_enter_waiting(Timer *t, bool initial) {
assert_not_reached("Unknown timer base");
}
+ if (t->wake_system)
+ base = monotonic_to_boottime(base);
+
v->next_elapse = base + v->value;
- if (!initial && v->next_elapse < ts.monotonic && IN_SET(v->base, TIMER_ACTIVE, TIMER_BOOT, TIMER_STARTUP)) {
+ if (!initial && v->next_elapse < ts_monotonic && IN_SET(v->base, TIMER_ACTIVE, TIMER_BOOT, TIMER_STARTUP)) {
/* This is a one time trigger, disable it now */
v->disabled = true;
continue;
}
if (!found_monotonic)
- t->next_elapse_monotonic = v->next_elapse;
+ t->next_elapse_monotonic_or_boottime = v->next_elapse;
else
- t->next_elapse_monotonic = MIN(t->next_elapse_monotonic, v->next_elapse);
+ t->next_elapse_monotonic_or_boottime = MIN(t->next_elapse_monotonic_or_boottime, v->next_elapse);
found_monotonic = true;
}
@@ -390,10 +416,13 @@ static void timer_enter_waiting(Timer *t, bool initial) {
if (found_monotonic) {
char buf[FORMAT_TIMESPAN_MAX];
- log_debug_unit(UNIT(t)->id, "%s: Monotonic timer elapses in %s.", UNIT(t)->id, format_timespan(buf, sizeof(buf), t->next_elapse_monotonic > ts.monotonic ? t->next_elapse_monotonic - ts.monotonic : 0, 0));
+
+ log_debug_unit(UNIT(t)->id, "%s: Monotonic timer elapses in %s.",
+ UNIT(t)->id,
+ format_timespan(buf, sizeof(buf), t->next_elapse_monotonic_or_boottime > ts_monotonic ? t->next_elapse_monotonic_or_boottime - ts_monotonic : 0, 0));
if (t->monotonic_event_source) {
- r = sd_event_source_set_time(t->monotonic_event_source, t->next_elapse_monotonic);
+ r = sd_event_source_set_time(t->monotonic_event_source, t->next_elapse_monotonic_or_boottime);
if (r < 0)
goto fail;
@@ -402,8 +431,8 @@ static void timer_enter_waiting(Timer *t, bool initial) {
r = sd_event_add_time(
UNIT(t)->manager->event,
&t->monotonic_event_source,
- CLOCK_MONOTONIC,
- t->next_elapse_monotonic, t->accuracy_usec,
+ t->wake_system ? CLOCK_BOOTTIME_ALARM : CLOCK_MONOTONIC,
+ t->next_elapse_monotonic_or_boottime, t->accuracy_usec,
timer_dispatch, t);
if (r < 0)
goto fail;
@@ -429,7 +458,7 @@ static void timer_enter_waiting(Timer *t, bool initial) {
r = sd_event_add_time(
UNIT(t)->manager->event,
&t->realtime_event_source,
- CLOCK_REALTIME,
+ t->wake_system ? CLOCK_REALTIME_ALARM : CLOCK_REALTIME,
t->next_elapse_realtime, t->accuracy_usec,
timer_dispatch, t);
if (r < 0)
diff --git a/src/core/timer.h b/src/core/timer.h
index 712cced29..de412a043 100644
--- a/src/core/timer.h
+++ b/src/core/timer.h
@@ -50,7 +50,6 @@ typedef enum TimerBase {
typedef struct TimerValue {
TimerBase base;
bool disabled;
- clockid_t clock_id;
usec_t value; /* only for monotonic events */
CalendarSpec *calendar_spec; /* only for calendar events */
@@ -72,8 +71,9 @@ struct Timer {
usec_t accuracy_usec;
LIST_HEAD(TimerValue, values);
- usec_t next_elapse_monotonic;
usec_t next_elapse_realtime;
+ usec_t next_elapse_monotonic_or_boottime;
+ dual_timestamp last_trigger;
TimerState state, deserialized_state;
@@ -83,8 +83,7 @@ struct Timer {
TimerResult result;
bool persistent;
-
- dual_timestamp last_trigger;
+ bool wake_system;
char *stamp_path;
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-14 18:10:43 +0000