1 files changed, 9 insertions, 0 deletions
diff --git a/src/core/unit.h b/src/core/unit.h
index 6dd750f8c..6dff25e9b 100644
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -198,6 +198,11 @@ struct Unit {
         /* CGroup realize members queue */
         LIST_FIELDS(Unit, cgroup_queue);
 
+        /* PIDs we keep an eye on. Note that a unit might have many
+         * more, but these are the ones we care enough about to
+         * process SIGCHLD for */
+        Set *pids;
+
         /* Used during GC sweeps */
         unsigned gc_marker;
 
@@ -531,6 +536,10 @@ void unit_unwatch_fd(Unit *u, Watch *w);
 
 int unit_watch_pid(Unit *u, pid_t pid);
 void unit_unwatch_pid(Unit *u, pid_t pid);
+int unit_watch_all_pids(Unit *u);
+void unit_unwatch_all_pids(Unit *u);
+
+void unit_tidy_watch_pids(Unit *u, pid_t except1, pid_t except2);
 
 int unit_watch_timer(Unit *u, clockid_t, bool relative, usec_t usec, Watch *w);
 void unit_unwatch_timer(Unit *u, Watch *w);