Added comment to empty kick_poller func.
diff --git a/src/core/iomgr/iomgr.c b/src/core/iomgr/iomgr.c
index c845cae..d22542f 100644
--- a/src/core/iomgr/iomgr.c
+++ b/src/core/iomgr/iomgr.c
@@ -84,7 +84,12 @@
gpr_event_set(&g_background_callback_executor_done, (void *)1);
}
-void grpc_kick_poller(void) { }
+void grpc_kick_poller(void) {
+ /* Empty. The background callback executor polls periodically. The activity
+ * the kicker is trying to draw the executor's attention to will be picked up
+ * either by one of the periodic wakeups or by one of the polling application
+ * threads. */
+}
void grpc_iomgr_init(void) {
gpr_thd_id id;