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authorIvan Shapovalov <intelfx100@gmail.com>2015-03-07 08:44:52 -0500
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2015-03-07 08:44:57 -0500
commit6e392c9c45643d106673c6643ac8bf4e65da13c1 (patch)
tree77cd87fdc7f0e104f2f48fb0ea282111dde94766 /src/core/timer.c
parent6829cec4dce1b41c895425a120b70d0a3ed677ab (diff)
core: do not spawn jobs or touch other units during coldplugging
Because the order of coldplugging is not defined, we can reference a not-yet-coldplugged unit and read its state while it has not yet been set to a meaningful value. This way, already active units may get started again. We fix this by deferring such actions until all units have been at least somehow coldplugged. Fixes https://bugs.freedesktop.org/show_bug.cgi?id=88401
Diffstat (limited to 'src/core/timer.c')
-rw-r--r--src/core/timer.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/src/core/timer.c b/src/core/timer.c
index 940550194b..79a7540553 100644
--- a/src/core/timer.c
+++ b/src/core/timer.c
@@ -267,7 +267,12 @@ static void timer_set_state(Timer *t, TimerState state) {
static void timer_enter_waiting(Timer *t, bool initial);
-static int timer_coldplug(Unit *u) {
+static int timer_enter_waiting_coldplug(Unit *u) {
+ timer_enter_waiting(TIMER(u), false);
+ return 0;
+}
+
+static int timer_coldplug(Unit *u, Hashmap *deferred_work) {
Timer *t = TIMER(u);
assert(t);
@@ -275,9 +280,10 @@ static int timer_coldplug(Unit *u) {
if (t->deserialized_state != t->state) {
- if (t->deserialized_state == TIMER_WAITING)
- timer_enter_waiting(t, false);
- else
+ if (t->deserialized_state == TIMER_WAITING) {
+ hashmap_put(deferred_work, u, &timer_enter_waiting_coldplug);
+ timer_set_state(t, TIMER_WAITING);
+ } else
timer_set_state(t, t->deserialized_state);
}