diff options
Diffstat (limited to 'src/service.c')
| -rw-r--r-- | src/service.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/service.c b/src/service.c index 3ebe60e46e..6d6c540a72 100644 --- a/src/service.c +++ b/src/service.c @@ -3145,6 +3145,62 @@ static void service_reset_failed(Unit *u) { s->failure = false; } +static int service_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) { + Service *s = SERVICE(u); + int r = 0; + Set *pid_set = NULL; + + assert(s); + + if (s->main_pid <= 0 && who == KILL_MAIN) { + dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No main process to kill"); + return -EINVAL; + } + + if (s->control_pid <= 0 && who == KILL_CONTROL) { + dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill"); + return -ENOENT; + } + + if (s->control_pid > 0) + if (kill(mode == KILL_PROCESS_GROUP ? -s->control_pid : s->control_pid, signo) < 0) + r = -errno; + + if (s->main_pid > 0) + if (kill(mode == KILL_PROCESS_GROUP ? -s->main_pid : s->main_pid, signo) < 0) + r = -errno; + + if (mode == KILL_CONTROL_GROUP) { + int q; + + if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) + return -ENOMEM; + + /* Exclude the control/main pid from being killed via the cgroup */ + if (s->control_pid > 0) + if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) { + r = q; + goto finish; + } + + if (s->main_pid > 0) + if ((q = set_put(pid_set, LONG_TO_PTR(s->main_pid))) < 0) { + r = q; + goto finish; + } + + if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, pid_set)) < 0) + if (r != -EAGAIN && r != -ESRCH && r != -ENOENT) + r = q; + } + +finish: + if (pid_set) + set_free(pid_set); + + return r; +} + static const char* const service_state_table[_SERVICE_STATE_MAX] = { [SERVICE_DEAD] = "dead", [SERVICE_START_PRE] = "start-pre", @@ -3222,6 +3278,8 @@ const UnitVTable service_vtable = { .can_reload = service_can_reload, + .kill = service_kill, + .serialize = service_serialize, .deserialize_item = service_deserialize_item, |