327 lines
10 KiB
C
327 lines
10 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "alloc-util.h"
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#include "bus-util.h"
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#include "dbus-timer.h"
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#include "strv.h"
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#include "timer.h"
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#include "unit.h"
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static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result, timer_result, TimerResult);
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static int property_get_monotonic_timers(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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Timer *t = userdata;
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TimerValue *v;
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int r;
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assert(bus);
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assert(reply);
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assert(t);
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r = sd_bus_message_open_container(reply, 'a', "(stt)");
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if (r < 0)
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return r;
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LIST_FOREACH(value, v, t->values) {
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_cleanup_free_ char *buf = NULL;
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const char *s;
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size_t l;
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if (v->base == TIMER_CALENDAR)
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continue;
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s = timer_base_to_string(v->base);
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assert(endswith(s, "Sec"));
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/* s/Sec/USec/ */
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l = strlen(s);
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buf = new(char, l+2);
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if (!buf)
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return -ENOMEM;
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memcpy(buf, s, l-3);
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memcpy(buf+l-3, "USec", 5);
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r = sd_bus_message_append(reply, "(stt)", buf, v->value, v->next_elapse);
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if (r < 0)
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return r;
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}
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return sd_bus_message_close_container(reply);
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}
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static int property_get_calendar_timers(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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Timer *t = userdata;
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TimerValue *v;
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int r;
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assert(bus);
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assert(reply);
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assert(t);
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r = sd_bus_message_open_container(reply, 'a', "(sst)");
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if (r < 0)
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return r;
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LIST_FOREACH(value, v, t->values) {
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_cleanup_free_ char *buf = NULL;
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if (v->base != TIMER_CALENDAR)
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continue;
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r = calendar_spec_to_string(v->calendar_spec, &buf);
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if (r < 0)
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return r;
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r = sd_bus_message_append(reply, "(sst)", timer_base_to_string(v->base), buf, v->next_elapse);
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if (r < 0)
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return r;
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}
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return sd_bus_message_close_container(reply);
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}
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static int property_get_unit(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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Unit *u = userdata, *trigger;
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assert(bus);
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assert(reply);
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assert(u);
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trigger = UNIT_TRIGGER(u);
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return sd_bus_message_append(reply, "s", trigger ? trigger->id : "");
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}
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static int property_get_next_elapse_monotonic(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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Timer *t = userdata;
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usec_t x;
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assert(bus);
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assert(reply);
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assert(t);
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if (t->next_elapse_monotonic_or_boottime <= 0)
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x = 0;
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else if (t->wake_system) {
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usec_t a, b;
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a = now(CLOCK_MONOTONIC);
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b = now(CLOCK_BOOTTIME);
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if (t->next_elapse_monotonic_or_boottime + a > b)
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x = t->next_elapse_monotonic_or_boottime + a - b;
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else
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x = 0;
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} else
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x = t->next_elapse_monotonic_or_boottime;
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return sd_bus_message_append(reply, "t", x);
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}
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const sd_bus_vtable bus_timer_vtable[] = {
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SD_BUS_VTABLE_START(0),
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SD_BUS_PROPERTY("Unit", "s", property_get_unit, 0, SD_BUS_VTABLE_PROPERTY_CONST),
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SD_BUS_PROPERTY("TimersMonotonic", "a(stt)", property_get_monotonic_timers, 0, SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
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SD_BUS_PROPERTY("TimersCalendar", "a(sst)", property_get_calendar_timers, 0, SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
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SD_BUS_PROPERTY("NextElapseUSecRealtime", "t", bus_property_get_usec, offsetof(Timer, next_elapse_realtime), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
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SD_BUS_PROPERTY("NextElapseUSecMonotonic", "t", property_get_next_elapse_monotonic, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
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BUS_PROPERTY_DUAL_TIMESTAMP("LastTriggerUSec", offsetof(Timer, last_trigger), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
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SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Timer, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
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SD_BUS_PROPERTY("AccuracyUSec", "t", bus_property_get_usec, offsetof(Timer, accuracy_usec), SD_BUS_VTABLE_PROPERTY_CONST),
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SD_BUS_PROPERTY("Persistent", "b", bus_property_get_bool, offsetof(Timer, persistent), SD_BUS_VTABLE_PROPERTY_CONST),
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SD_BUS_PROPERTY("WakeSystem", "b", bus_property_get_bool, offsetof(Timer, wake_system), SD_BUS_VTABLE_PROPERTY_CONST),
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SD_BUS_VTABLE_END
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};
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static int bus_timer_set_transient_property(
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Timer *t,
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const char *name,
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sd_bus_message *message,
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UnitSetPropertiesMode mode,
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sd_bus_error *error) {
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int r;
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assert(t);
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assert(name);
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assert(message);
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if (STR_IN_SET(name,
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"OnActiveSec",
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"OnBootSec",
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"OnStartupSec",
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"OnUnitActiveSec",
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"OnUnitInactiveSec")) {
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TimerValue *v;
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TimerBase b = _TIMER_BASE_INVALID;
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usec_t u = 0;
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b = timer_base_from_string(name);
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if (b < 0)
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return -EINVAL;
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r = sd_bus_message_read(message, "t", &u);
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if (r < 0)
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return r;
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if (mode != UNIT_CHECK) {
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char time[FORMAT_TIMESPAN_MAX];
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unit_write_drop_in_private_format(UNIT(t), mode, name, "%s=%s\n", name, format_timespan(time, sizeof(time), u, USEC_PER_MSEC));
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v = new0(TimerValue, 1);
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if (!v)
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return -ENOMEM;
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v->base = b;
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v->value = u;
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LIST_PREPEND(value, t->values, v);
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}
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return 1;
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} else if (streq(name, "OnCalendar")) {
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TimerValue *v;
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CalendarSpec *c = NULL;
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const char *str;
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r = sd_bus_message_read(message, "s", &str);
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if (r < 0)
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return r;
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if (mode != UNIT_CHECK) {
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r = calendar_spec_from_string(str, &c);
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if (r < 0)
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return r;
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unit_write_drop_in_private_format(UNIT(t), mode, name, "%s=%s\n", name, str);
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v = new0(TimerValue, 1);
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if (!v) {
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calendar_spec_free(c);
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return -ENOMEM;
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}
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v->base = TIMER_CALENDAR;
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v->calendar_spec = c;
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LIST_PREPEND(value, t->values, v);
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}
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return 1;
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} else if (streq(name, "AccuracySec")) {
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usec_t u = 0;
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r = sd_bus_message_read(message, "t", &u);
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if (r < 0)
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return r;
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if (mode != UNIT_CHECK) {
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char time[FORMAT_TIMESPAN_MAX];
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t->accuracy_usec = u;
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unit_write_drop_in_private_format(UNIT(t), mode, name, "%s=%s\n", name, format_timespan(time, sizeof(time), u, USEC_PER_MSEC));
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}
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return 1;
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} else if (streq(name, "WakeSystem")) {
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int b;
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r = sd_bus_message_read(message, "b", &b);
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if (r < 0)
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return r;
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if (mode != UNIT_CHECK) {
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t->wake_system = b;
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unit_write_drop_in_private_format(UNIT(t), mode, name, "%s=%s\n", name, yes_no(t->wake_system));
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}
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return 1;
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}
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return 0;
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}
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int bus_timer_set_property(
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Unit *u,
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const char *name,
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sd_bus_message *message,
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UnitSetPropertiesMode mode,
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sd_bus_error *error) {
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Timer *t = TIMER(u);
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int r;
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assert(t);
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assert(name);
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assert(message);
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if (u->transient && u->load_state == UNIT_STUB) {
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r = bus_timer_set_transient_property(t, name, message, mode, error);
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if (r != 0)
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return r;
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}
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return 0;
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}
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