diff options
Diffstat (limited to 'unit.c')
| -rw-r--r-- | unit.c | 17 |
1 files changed, 11 insertions, 6 deletions
@@ -478,13 +478,18 @@ int unit_start(Unit *u) { assert(u); - if (!UNIT_VTABLE(u)->start) - return -EBADR; - + /* If this is already (being) started, then this will + * succeed. Note that this will even succeed if this unit is + * not startable by the user. This is relied on to detect when + * we need to wait for units and when waiting is finished. */ state = unit_active_state(u); if (UNIT_IS_ACTIVE_OR_RELOADING(state)) return -EALREADY; + /* If it is stopped, but we cannot start it, then fail */ + if (!UNIT_VTABLE(u)->start) + return -EBADR; + /* We don't suppress calls to ->start() here when we are * already starting, to allow this request to be used as a * "hurry up" call, for example when the unit is in some "auto @@ -511,13 +516,13 @@ int unit_stop(Unit *u) { assert(u); - if (!UNIT_VTABLE(u)->stop) - return -EBADR; - state = unit_active_state(u); if (state == UNIT_INACTIVE) return -EALREADY; + if (!UNIT_VTABLE(u)->stop) + return -EBADR; + if (state == UNIT_DEACTIVATING) return 0; |