shared/cgroup-show: extract funtion to query unit cgroup path

…and use it where possible.

diff --git a/src/login/loginctl.c b/src/login/loginctl.c
index 450fbc1ebad10f576218703b6c0242cce90d0569..56d711c8eefc7aa5e8aaac0f517b7ab5a1cb83a8 100644 (file)
--- a/src/login/loginctl.c
+++ b/src/login/loginctl.c
@@ -255,7 +255,6 @@ static int list_seats(int argc, char *argv[], void *userdata) {
         sd_bus *bus = userdata;
         unsigned k = 0;
         int r;
-
         assert(bus);
         assert(argv);
 
@@ -296,35 +295,17 @@ static int list_seats(int argc, char *argv[], void *userdata) {
 
 #if 0 /// UNNEEDED by elogind
 static int show_unit_cgroup(sd_bus *bus, const char *interface, const char *unit, pid_t leader) {
+        _cleanup_free_ char *cgroup = NULL;
         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
-        _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
-        _cleanup_free_ char *path = NULL;
-        const char *cgroup;
         unsigned c;
         int r;
 
         assert(bus);
         assert(unit);
 
-        path = unit_dbus_path_from_name(unit);
-        if (!path)
-                return log_oom();
-
-        r = sd_bus_get_property(
-                        bus,
-                        "org.freedesktop.systemd1",
-                        path,
-                        interface,
-                        "ControlGroup",
-                        &error,
-                        &reply,
-                        "s");
-        if (r < 0)
-                return log_error_errno(r, "Failed to query ControlGroup: %s", bus_error_message(&error, r));
-
-        r = sd_bus_message_read(reply, "s", &cgroup);
+        r = show_cgroup_get_unit_path_and_warn(bus, unit, &cgroup);
         if (r < 0)
-                return bus_log_parse_error(r);
+                return r;
 
         if (isempty(cgroup))
                 return 0;