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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2013 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 "unit.h"
#include "scope.h"
#include "dbus-unit.h"
#include "dbus-cgroup.h"
#include "dbus-kill.h"
#include "dbus-scope.h"
#include "bus-util.h"
static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result, scope_result, ScopeResult);
const sd_bus_vtable bus_scope_vtable[] = {
SD_BUS_VTABLE_START(0),
SD_BUS_PROPERTY("TimeoutStopUSec", "t", bus_property_get_usec, offsetof(Scope, timeout_stop_usec), 0),
SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Scope, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_VTABLE_END
};
const char* const bus_scope_changing_properties[] = {
"Result",
NULL
};
static int bus_scope_set_transient_property(
Scope *s,
const char *name,
sd_bus_message *message,
UnitSetPropertiesMode mode,
sd_bus_error *error) {
int r;
assert(s);
assert(name);
assert(message);
if (streq(name, "PIDs")) {
unsigned n = 0;
uint32_t pid;
r = set_ensure_allocated(&s->pids, trivial_hash_func, trivial_compare_func);
if (r < 0)
return r;
r = sd_bus_message_enter_container(message, 'a', "u");
if (r < 0)
return r;
while ((r = sd_bus_message_read(message, "u", &pid)) > 0) {
if (pid <= 1)
return -EINVAL;
if (mode != UNIT_CHECK) {
r = set_put(s->pids, LONG_TO_PTR(pid));
if (r < 0 && r != -EEXIST)
return r;
}
n++;
}
if (r < 0)
return r;
r = sd_bus_message_exit_container(message);
if (r < 0)
return r;
if (n <= 0)
return -EINVAL;
return 1;
} else if (streq(name, "TimeoutStopUSec")) {
if (mode != UNIT_CHECK) {
r = sd_bus_message_read(message, "t", &s->timeout_stop_usec);
if (r < 0)
return r;
unit_write_drop_in_format(UNIT(s), mode, name, "[Scope]\nTimeoutStopSec=%lluus\n", (unsigned long long) s->timeout_stop_usec);
} else {
r = sd_bus_message_skip(message, "t");
if (r < 0)
return r;
}
return 1;
}
return 0;
}
int bus_scope_set_property(
Unit *u,
const char *name,
sd_bus_message *message,
UnitSetPropertiesMode mode,
sd_bus_error *error) {
Scope *s = SCOPE(u);
int r;
assert(s);
assert(name);
assert(message);
r = bus_cgroup_set_property(u, &s->cgroup_context, name, message, mode, error);
if (r != 0)
return r;
if (u->load_state == UNIT_STUB) {
/* While we are created we still accept PIDs */
r = bus_scope_set_transient_property(s, name, message, mode, error);
if (r != 0)
return r;
r = bus_kill_context_set_transient_property(u, &s->kill_context, name, message, mode, error);
if (r != 0)
return r;
}
return 0;
}
int bus_scope_commit_properties(Unit *u) {
assert(u);
unit_realize_cgroup(u);
return 0;
}
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