core: reduce the number of stalled PIDs from the watched processes list when possible

[thirdparty/systemd.git] / src / core / manager.c

diff --git a/src/core/manager.c b/src/core/manager.c
index 22d1fda2dcd0437476a7ec45afaeabd62c379d3f..33785d905f7357fab56b14f259327a4ad988b88b 100644 (file)
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -2129,6 +2129,16 @@ void manager_clear_jobs(Manager *m) {
                 job_finish_and_invalidate(j, JOB_CANCELED, false, false);
 }
 
+void manager_unwatch_pid(Manager *m, pid_t pid) {
+        assert(m);
+
+        /* First let's drop the unit keyed as "pid". */
+        (void) hashmap_remove(m->watch_pids, PID_TO_PTR(pid));
+
+        /* Then, let's also drop the array keyed by -pid. */
+        free(hashmap_remove(m->watch_pids, PID_TO_PTR(-pid)));
+}
+
 static int manager_dispatch_run_queue(sd_event_source *source, void *userdata) {
         Manager *m = userdata;
         Job *j;