Display sched_switch "in" in follow-child

Signed-off-by: Julien Desfossez <jdesfossez@efficios.com>

diff --git a/src/lttngtop.c b/src/lttngtop.c
index e9beb0d0aab082dec131fec1422359d6495f769f..6b41e65049615b77d242d0c36edc5026e1217990 100644 (file)
--- a/src/lttngtop.c
+++ b/src/lttngtop.c
@@ -238,9 +238,28 @@ enum bt_cb_ret print_timestamp(struct bt_ctf_event *call_data, void *private_dat
        }
        
        hostname = get_context_hostname(call_data);
-       if (opt_tid || opt_hostname)
-               if (!lookup_filter_tid_list(pid))
-                       goto end;
+       if (opt_tid || opt_hostname) {
+               if (!lookup_filter_tid_list(pid)) {
+                       /* To display when a process of ours in getting scheduled in */
+                       if (strcmp(bt_ctf_event_name(call_data), "sched_switch") == 0) {
+                               int next_tid;
+
+                               scope = bt_ctf_get_top_level_scope(call_data,
+                                               BT_EVENT_FIELDS);
+                               next_tid = bt_ctf_get_int64(bt_ctf_get_field(call_data,
+                                                       scope, "_next_tid"));
+                               if (bt_ctf_field_get_error()) {
+                                       fprintf(stderr, "Missing next_tid field\n");
+                                       goto error;
+                               }
+                               if (!lookup_filter_tid_list(next_tid)) {
+                                       goto end;
+                               }
+                       } else {
+                               goto end;
+                       }
+               }
+       }
 
        cpu_id = get_cpu_id(call_data);
        procname = get_context_comm(call_data);