/***
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 "alloc-util.h"
#include "bus-util.h"
#include "dbus-timer.h"
#include "strv.h"
#include "timer.h"
#include "unit.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);
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\n", 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\n", 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\n", 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\n", 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\n", 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\n", 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;
}