API refactor, allow svc_stop_completed() to return the pending svc

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

src/svc.c

@@ -307,20 +307,19 @@ void svc_foreach_type(int types, void (*cb)(svc_t *))
  * svc_stop_completed - Have all stopped services been collected?
  *
  * Returns:
- * 1, if all stopped services have been collected. 0 otherwise.
+ * %NULL if all stopped services have been collected, otherwise a
+ * pointer to the first svc_t waiting to be collected.
  */
-int svc_stop_completed(void)
+svc_t *svc_stop_completed(void)
 {
 	svc_t *svc;
 
 	for (svc = svc_iterator(1); svc; svc = svc_iterator(0)) {
-		if (svc->state == SVC_STOPPING_STATE) {
-			_e("Waiting to collect %s(%d) ...", svc->cmd, svc->pid);
-			return 0;
-		}
+		if (svc->state == SVC_STOPPING_STATE)
+			return svc;
 	}
 
-	return 1;
+	return NULL;
 }
 
 /**

src/svc.h

@@ -158,7 +158,7 @@ void	    svc_foreach	           (void (*cb)(svc_t *));
 void	    svc_foreach_dynamic    (void (*cb)(svc_t *));
 void        svc_foreach_type       (int types, void (*cb)(svc_t *));
 
-int         svc_stop_completed     (void);
+svc_t	   *svc_stop_completed	   (void);
 
 void	    svc_mark_dynamic       (void);
 void	    svc_check_dirty        (svc_t *svc, struct timeval *mtime);