core: add StartUnitWithFlags DBUS method

When an activation job is skipped because of a Condition*= setting failing,
currently the JobRemoved signal lists 'done' as the result, just as with
a successful job.

This is a problem when doing dbus activation: dbus-broker will receive a
signal that says the job was successful, so then it moves into a state where
it waits for the requested name to appear on the bus, but that never happens
because the job was actually skipped.

Add a new StartUnitWithFlags that changes the behaviour of the JobRemoved
signal to list 'done' or 'skipped'.

Fixes #21520

1 files changed, 1 insertions, 0 deletions

diff --git a/src/core/job.h b/src/core/job.h
index c033c8a4fa..a66e5985b8 100644
--- a/src/core/job.h
+++ b/src/core/job.h
@@ -160,6 +160,7 @@ struct Job {
         bool irreversible:1;
         bool in_gc_queue:1;
         bool ref_by_private_bus:1;
+        bool return_skip_on_cond_failure:1;
 };
 
 Job* job_new(Unit *unit, JobType type);