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-rw-r--r--src/grp-system/libcore/src/dbus-timer.c353
1 files changed, 353 insertions, 0 deletions
diff --git a/src/grp-system/libcore/src/dbus-timer.c b/src/grp-system/libcore/src/dbus-timer.c
new file mode 100644
index 0000000000..6b00168361
--- /dev/null
+++ b/src/grp-system/libcore/src/dbus-timer.c
@@ -0,0 +1,353 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "core/timer.h"
+#include "core/unit.h"
+#include "sd-bus/bus-util.h"
+#include "systemd-basic/alloc-util.h"
+#include "systemd-basic/strv.h"
+
+#include "dbus-timer.h"
+
+static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result, timer_result, TimerResult);
+
+static int property_get_monotonic_timers(
+ 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;
+ TimerValue *v;
+ int r;
+
+ assert(bus);
+ assert(reply);
+ assert(t);
+
+ r = sd_bus_message_open_container(reply, 'a', "(stt)");
+ if (r < 0)
+ return r;
+
+ LIST_FOREACH(value, v, t->values) {
+ _cleanup_free_ char *buf = NULL;
+ const char *s;
+ size_t l;
+
+ if (v->base == TIMER_CALENDAR)
+ continue;
+
+ s = timer_base_to_string(v->base);
+ assert(endswith(s, "Sec"));
+
+ /* s/Sec/USec/ */
+ l = strlen(s);
+ buf = new(char, l+2);
+ if (!buf)
+ return -ENOMEM;
+
+ memcpy(buf, s, l-3);
+ memcpy(buf+l-3, "USec", 5);
+
+ r = sd_bus_message_append(reply, "(stt)", buf, v->value, v->next_elapse);
+ if (r < 0)
+ return r;
+ }
+
+ return sd_bus_message_close_container(reply);
+}
+
+static int property_get_calendar_timers(
+ 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;
+ TimerValue *v;
+ int r;
+
+ assert(bus);
+ assert(reply);
+ assert(t);
+
+ r = sd_bus_message_open_container(reply, 'a', "(sst)");
+ if (r < 0)
+ return r;
+
+ LIST_FOREACH(value, v, t->values) {
+ _cleanup_free_ char *buf = NULL;
+
+ if (v->base != TIMER_CALENDAR)
+ continue;
+
+ r = calendar_spec_to_string(v->calendar_spec, &buf);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(reply, "(sst)", timer_base_to_string(v->base), buf, v->next_elapse);
+ if (r < 0)
+ return r;
+ }
+
+ return sd_bus_message_close_container(reply);
+}
+
+static int property_get_unit(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Unit *u = userdata, *trigger;
+
+ assert(bus);
+ assert(reply);
+ assert(u);
+
+ trigger = UNIT_TRIGGER(u);
+
+ 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_or_monotonic());
+
+ 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", 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("RandomizedDelayUSec", "t", bus_property_get_usec, offsetof(Timer, random_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_PROPERTY("RemainAfterElapse", "b", bus_property_get_bool, offsetof(Timer, remain_after_elapse), SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_VTABLE_END
+};
+
+static int bus_timer_set_transient_property(
+ Timer *t,
+ const char *name,
+ sd_bus_message *message,
+ UnitSetPropertiesMode mode,
+ sd_bus_error *error) {
+
+ int r;
+
+ assert(t);
+ assert(name);
+ assert(message);
+
+ if (STR_IN_SET(name,
+ "OnActiveSec",
+ "OnBootSec",
+ "OnStartupSec",
+ "OnUnitActiveSec",
+ "OnUnitInactiveSec")) {
+
+ TimerValue *v;
+ TimerBase b = _TIMER_BASE_INVALID;
+ usec_t u = 0;
+
+ b = timer_base_from_string(name);
+ if (b < 0)
+ return -EINVAL;
+
+ r = sd_bus_message_read(message, "t", &u);
+ if (r < 0)
+ return r;
+
+ if (mode != UNIT_CHECK) {
+ char time[FORMAT_TIMESPAN_MAX];
+
+ unit_write_drop_in_private_format(UNIT(t), mode, name, "%s=%s", name, format_timespan(time, sizeof(time), u, USEC_PER_MSEC));
+
+ v = new0(TimerValue, 1);
+ if (!v)
+ return -ENOMEM;
+
+ v->base = b;
+ v->value = u;
+
+ LIST_PREPEND(value, t->values, v);
+ }
+
+ return 1;
+
+ } else if (streq(name, "OnCalendar")) {
+
+ TimerValue *v;
+ CalendarSpec *c = NULL;
+ const char *str;
+
+ r = sd_bus_message_read(message, "s", &str);
+ if (r < 0)
+ return r;
+
+ if (mode != UNIT_CHECK) {
+ r = calendar_spec_from_string(str, &c);
+ if (r < 0)
+ return r;
+
+ unit_write_drop_in_private_format(UNIT(t), mode, name, "%s=%s", name, str);
+
+ v = new0(TimerValue, 1);
+ if (!v) {
+ calendar_spec_free(c);
+ return -ENOMEM;
+ }
+
+ v->base = TIMER_CALENDAR;
+ v->calendar_spec = c;
+
+ LIST_PREPEND(value, t->values, v);
+ }
+
+ return 1;
+
+ } else if (STR_IN_SET(name, "AccuracyUSec", "AccuracySec")) {
+ usec_t u = 0;
+
+ if (streq(name, "AccuracySec"))
+ log_notice("Client is using obsolete AccuracySec= transient property, please use AccuracyUSec= instead.");
+
+ r = sd_bus_message_read(message, "t", &u);
+ if (r < 0)
+ return r;
+
+ if (mode != UNIT_CHECK) {
+ t->accuracy_usec = u;
+ unit_write_drop_in_private_format(UNIT(t), mode, name, "AccuracySec=" USEC_FMT "us", u);
+ }
+
+ return 1;
+
+ } else if (streq(name, "RandomizedDelayUSec")) {
+ usec_t u = 0;
+
+ r = sd_bus_message_read(message, "t", &u);
+ if (r < 0)
+ return r;
+
+ if (mode != UNIT_CHECK) {
+ t->random_usec = u;
+ unit_write_drop_in_private_format(UNIT(t), mode, name, "RandomizedDelaySec=" USEC_FMT "us", u);
+ }
+
+ return 1;
+
+ } else if (streq(name, "WakeSystem")) {
+ int b;
+
+ r = sd_bus_message_read(message, "b", &b);
+ if (r < 0)
+ return r;
+
+ if (mode != UNIT_CHECK) {
+ t->wake_system = b;
+ unit_write_drop_in_private_format(UNIT(t), mode, name, "%s=%s", name, yes_no(b));
+ }
+
+ return 1;
+
+ } else if (streq(name, "RemainAfterElapse")) {
+ int b;
+
+ r = sd_bus_message_read(message, "b", &b);
+ if (r < 0)
+ return r;
+
+ if (mode != UNIT_CHECK) {
+ t->remain_after_elapse = b;
+ unit_write_drop_in_private_format(UNIT(t), mode, name, "%s=%s", name, yes_no(b));
+ }
+
+ return 1;
+ }
+
+ return 0;
+}
+
+int bus_timer_set_property(
+ Unit *u,
+ const char *name,
+ sd_bus_message *message,
+ UnitSetPropertiesMode mode,
+ sd_bus_error *error) {
+
+ Timer *t = TIMER(u);
+ int r;
+
+ assert(t);
+ assert(name);
+ assert(message);
+
+ if (u->transient && u->load_state == UNIT_STUB) {
+ r = bus_timer_set_transient_property(t, name, message, mode, error);
+ if (r != 0)
+ return r;
+ }
+
+ return 0;
+}
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