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Systemd/src/core/dbus-timer.c
Lennart Poettering 0c69794138 tree-wide: remove Lennart's copyright lines 
These lines are generally out-of-date, incomplete and unnecessary. With
SPDX and git repository much more accurate and fine grained information
about licensing and authorship is available, hence let's drop the
per-file copyright notice. Of course, removing copyright lines of others
is problematic, hence this commit only removes my own lines and leaves
all others untouched. It might be nicer if sooner or later those could
go away too, making git the only and accurate source of authorship
information.
2018-06-14 10:20:20 +02:00

370 lines
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/* SPDX-License-Identifier: LGPL-2.1+ */
#include "alloc-util.h"
#include "bus-util.h"
#include "dbus-timer.h"
#include "dbus-util.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_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;
assert(bus);
assert(reply);
assert(t);
return sd_bus_message_append(reply, "t",
(uint64_t) usec_shift_clock(t->next_elapse_monotonic_or_boottime,
TIMER_MONOTONIC_CLOCK(t), CLOCK_MONOTONIC));
}
const sd_bus_vtable bus_timer_vtable[] = {
SD_BUS_VTABLE_START(0),
SD_BUS_PROPERTY("Unit", "s", bus_property_get_triggered_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,
UnitWriteFlags flags,
sd_bus_error *error) {
Unit *u = UNIT(t);
int r;
assert(t);
assert(name);
assert(message);
flags |= UNIT_PRIVATE;
if (streq(name, "AccuracyUSec"))
return bus_set_transient_usec(u, name, &t->accuracy_usec, message, flags, error);
if (streq(name, "AccuracySec")) {
log_notice("Client is using obsolete AccuracySec= transient property, please use AccuracyUSec= instead.");
return bus_set_transient_usec(u, "AccuracyUSec", &t->accuracy_usec, message, flags, error);
}
if (streq(name, "RandomizedDelayUSec"))
return bus_set_transient_usec(u, name, &t->random_usec, message, flags, error);
if (streq(name, "WakeSystem"))
return bus_set_transient_bool(u, name, &t->wake_system, message, flags, error);
if (streq(name, "Persistent"))
return bus_set_transient_bool(u, name, &t->persistent, message, flags, error);
if (streq(name, "RemainAfterElapse"))
return bus_set_transient_bool(u, name, &t->remain_after_elapse, message, flags, error);
if (streq(name, "TimersMonotonic")) {
const char *base_name;
usec_t usec = 0;
bool empty = true;
r = sd_bus_message_enter_container(message, 'a', "(st)");
if (r < 0)
return r;
while ((r = sd_bus_message_read(message, "(st)", &base_name, &usec)) > 0) {
TimerBase b;
b = timer_base_from_string(base_name);
if (b < 0 || b == TIMER_CALENDAR)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid timer base: %s", base_name);
if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
char ts[FORMAT_TIMESPAN_MAX];
TimerValue *v;
unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s", base_name,
format_timespan(ts, sizeof(ts), usec, USEC_PER_MSEC));
v = new0(TimerValue, 1);
if (!v)
return -ENOMEM;
v->base = b;
v->value = usec;
LIST_PREPEND(value, t->values, v);
}
empty = false;
}
if (r < 0)
return r;
r = sd_bus_message_exit_container(message);
if (r < 0)
return r;
if (!UNIT_WRITE_FLAGS_NOOP(flags) && empty) {
timer_free_values(t);
unit_write_setting(u, flags, name, "OnActiveSec=");
}
return 1;
} else if (streq(name, "TimersCalendar")) {
const char *base_name, *str;
bool empty = true;
r = sd_bus_message_enter_container(message, 'a', "(ss)");
if (r < 0)
return r;
while ((r = sd_bus_message_read(message, "(ss)", &base_name, &str)) > 0) {
_cleanup_(calendar_spec_freep) CalendarSpec *c = NULL;
TimerBase b;
b = timer_base_from_string(base_name);
if (b != TIMER_CALENDAR)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid timer base: %s", base_name);
r = calendar_spec_from_string(str, &c);
if (r == -EINVAL)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid calendar spec: %s", str);
if (r < 0)
return r;
if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
TimerValue *v;
unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s", base_name, str);
v = new0(TimerValue, 1);
if (!v)
return -ENOMEM;
v->base = b;
v->calendar_spec = TAKE_PTR(c);
LIST_PREPEND(value, t->values, v);
}
empty = false;
}
if (r < 0)
return r;
r = sd_bus_message_exit_container(message);
if (r < 0)
return r;
if (!UNIT_WRITE_FLAGS_NOOP(flags) && empty) {
timer_free_values(t);
unit_write_setting(u, flags, name, "OnCalendar=");
}
return 1;
} else if (STR_IN_SET(name,
"OnActiveSec",
"OnBootSec",
"OnStartupSec",
"OnUnitActiveSec",
"OnUnitInactiveSec")) {
TimerValue *v;
TimerBase b = _TIMER_BASE_INVALID;
usec_t usec = 0;
log_notice("Client is using obsolete %s= transient property, please use TimersMonotonic= instead.", name);
b = timer_base_from_string(name);
if (b < 0)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown timer base");
r = sd_bus_message_read(message, "t", &usec);
if (r < 0)
return r;
if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
char time[FORMAT_TIMESPAN_MAX];
unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s", name,
format_timespan(time, sizeof(time), usec, USEC_PER_MSEC));
v = new0(TimerValue, 1);
if (!v)
return -ENOMEM;
v->base = b;
v->value = usec;
LIST_PREPEND(value, t->values, v);
}
return 1;
} else if (streq(name, "OnCalendar")) {
TimerValue *v;
_cleanup_(calendar_spec_freep) CalendarSpec *c = NULL;
const char *str;
log_notice("Client is using obsolete %s= transient property, please use TimersCalendar= instead.", name);
r = sd_bus_message_read(message, "s", &str);
if (r < 0)
return r;
if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
r = calendar_spec_from_string(str, &c);
if (r == -EINVAL)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid calendar spec");
if (r < 0)
return r;
unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s", name, str);
v = new0(TimerValue, 1);
if (!v)
return -ENOMEM;
v->base = TIMER_CALENDAR;
v->calendar_spec = TAKE_PTR(c);
LIST_PREPEND(value, t->values, v);
}
return 1;
}
return 0;
}
int bus_timer_set_property(
Unit *u,
const char *name,
sd_bus_message *message,
UnitWriteFlags mode,
sd_bus_error *error) {
Timer *t = TIMER(u);
assert(t);
assert(name);
assert(message);
if (u->transient && u->load_state == UNIT_STUB)
return bus_timer_set_transient_property(t, name, message, mode, error);
return 0;
}
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