lib: If passthrough event is leaked, include in the panic message where it was created at

diff --git a/src/lib/lib-event.c b/src/lib/lib-event.c
index 1876d690c7714a683063651ca48b3d5ee3a21cc6..30c4c687a3177925da6fe5c91036a62bb97394fb 100644 (file)
--- a/src/lib/lib-event.c
+++ b/src/lib/lib-event.c
@@ -453,7 +453,9 @@ event_create_passthrough(struct event *parent, const char *source_filename,
                if (event_last_passthrough != NULL) {
                        /* API is being used in a wrong or dangerous way */
                        i_panic("Can't create multiple passthrough events - "
-                               "finish the earlier with ->event()");
+                               "finish the earlier event (%s:%d) with ->event()",
+                               event_last_passthrough->source_filename,
+                               event_last_passthrough->source_linenum);
                }
                struct event *event =
                        event_create(parent, source_filename, source_linenum);