X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=target.c;h=f34ba0c36df696b06642ddf608e7fe98b3f9cae6;hb=e293f0f07d0dcff74acf756a2b88d7bd949257a7;hp=6c84908e9b605730e69f0c3db7ffc1bdbf7b4e1a;hpb=fa06836725dd6ec9f8f1c4b76608f7147008ecd9;p=elogind.git

diff --git a/target.c b/target.c
index 6c84908e9..f34ba0c36 100644
--- a/target.c
+++ b/target.c
@@ -1,5 +1,27 @@
 /*-*- Mode: C; c-basic-offset: 8 -*-*/
 
+/***
+  This file is part of systemd.
+
+  Copyright 2010 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 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
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+#include <signal.h>
+
 #include "unit.h"
 #include "target.h"
 #include "load-fragment.h"
@@ -30,10 +52,13 @@ static void target_set_state(Target *t, TargetState state) {
         TargetState old_state;
         assert(t);
 
+        if (state == t->state)
+                return;
+
         old_state = t->state;
         t->state = state;
 
-        log_debug("%s changing %s → %s", unit_id(UNIT(t)), state_string_table[old_state], state_string_table[state]);
+        log_debug("%s changed %s → %s", unit_id(UNIT(t)), state_string_table[old_state], state_string_table[state]);
 
         unit_notify(UNIT(t), state_translation_table[old_state], state_translation_table[state]);
 }
@@ -64,6 +89,35 @@ static UnitActiveState target_active_state(Unit *u) {
         return state_translation_table[TARGET(u)->state];
 }
 
+int target_get_runlevel(Target *t) {
+
+        static const struct {
+                const char *special;
+                const int runlevel;
+        } table[] = {
+                { SPECIAL_RUNLEVEL5_TARGET, '5' },
+                { SPECIAL_RUNLEVEL4_TARGET, '4' },
+                { SPECIAL_RUNLEVEL3_TARGET, '3' },
+                { SPECIAL_RUNLEVEL2_TARGET, '2' },
+                { SPECIAL_RUNLEVEL1_TARGET, '1' },
+                { SPECIAL_RUNLEVEL0_TARGET, '0' },
+                { SPECIAL_RUNLEVEL6_TARGET, '6' },
+        };
+
+        unsigned i;
+
+        assert(t);
+
+        /* Tries to determine if this is a SysV runlevel and returns
+         * it if that is so. */
+
+        for (i = 0; i < ELEMENTSOF(table); i++)
+                if (unit_has_name(UNIT(t), table[i].special))
+                        return table[i].runlevel;
+
+        return 0;
+}
+
 const UnitVTable target_vtable = {
         .suffix = ".target",