1 files changed, 23 insertions, 16 deletions

diff --git a/src/core/iomgr/iomgr.c b/src/core/iomgr/iomgr.c
index c507e7c26a..cca92d3b32 100644
--- a/src/core/iomgr/iomgr.c
+++ b/src/core/iomgr/iomgr.c
@@ -59,7 +59,7 @@ static void background_callback_executor(void *ignored) {
   while (!g_shutdown) {
     gpr_timespec deadline = gpr_inf_future;
     gpr_timespec short_deadline =
-        gpr_time_add(gpr_now(), gpr_time_from_millis(100));
+        gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), gpr_time_from_millis(100));
     if (g_cbs_head) {
       grpc_iomgr_closure *closure = g_cbs_head;
       g_cbs_head = closure->next;
@@ -67,7 +67,8 @@ static void background_callback_executor(void *ignored) {
       gpr_mu_unlock(&g_mu);
       closure->cb(closure->cb_arg, closure->success);
       gpr_mu_lock(&g_mu);
-    } else if (grpc_alarm_check(&g_mu, gpr_now(), &deadline)) {
+    } else if (grpc_alarm_check(&g_mu, gpr_now(GPR_CLOCK_REALTIME),
+                                &deadline)) {
     } else {
       gpr_mu_unlock(&g_mu);
       gpr_sleep_until(gpr_time_min(short_deadline, deadline));
@@ -89,7 +90,7 @@ void grpc_iomgr_init(void) {
   gpr_thd_id id;
   gpr_mu_init(&g_mu);
   gpr_cv_init(&g_rcv);
-  grpc_alarm_list_init(gpr_now());
+  grpc_alarm_list_init(gpr_now(GPR_CLOCK_REALTIME));
   g_root_object.next = g_root_object.prev = &g_root_object;
   g_root_object.name = "root";
   grpc_iomgr_platform_init();
@@ -110,21 +111,27 @@ void grpc_iomgr_shutdown(void) {
   grpc_iomgr_object *obj;
   grpc_iomgr_closure *closure;
   gpr_timespec shutdown_deadline =
-      gpr_time_add(gpr_now(), gpr_time_from_seconds(10));
+      gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), gpr_time_from_seconds(10));
+  gpr_timespec last_warning_time = gpr_now(GPR_CLOCK_REALTIME);
 
   gpr_mu_lock(&g_mu);
   g_shutdown = 1;
   while (g_cbs_head != NULL || g_root_object.next != &g_root_object) {
-    if (g_cbs_head != NULL && g_root_object.next != &g_root_object) {
-      gpr_log(GPR_DEBUG,
-              "Waiting for %d iomgr objects to be destroyed and executing "
-              "final callbacks",
-              count_objects());
-    } else if (g_cbs_head != NULL) {
-      gpr_log(GPR_DEBUG, "Executing final iomgr callbacks");
-    } else {
-      gpr_log(GPR_DEBUG, "Waiting for %d iomgr objects to be destroyed",
-              count_objects());
+    if (gpr_time_cmp(
+            gpr_time_sub(gpr_now(GPR_CLOCK_REALTIME), last_warning_time),
+            gpr_time_from_seconds(1)) >= 0) {
+      if (g_cbs_head != NULL && g_root_object.next != &g_root_object) {
+        gpr_log(GPR_DEBUG,
+                "Waiting for %d iomgr objects to be destroyed and executing "
+                "final callbacks",
+                count_objects());
+      } else if (g_cbs_head != NULL) {
+        gpr_log(GPR_DEBUG, "Executing final iomgr callbacks");
+      } else {
+        gpr_log(GPR_DEBUG, "Waiting for %d iomgr objects to be destroyed",
+                count_objects());
+      }
+      last_warning_time = gpr_now(GPR_CLOCK_REALTIME);
     }
     if (g_cbs_head) {
       do {
@@ -145,9 +152,9 @@ void grpc_iomgr_shutdown(void) {
     if (g_root_object.next != &g_root_object) {
       int timeout = 0;
       gpr_timespec short_deadline =
-          gpr_time_add(gpr_now(), gpr_time_from_millis(100));
+          gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), gpr_time_from_millis(100));
       while (gpr_cv_wait(&g_rcv, &g_mu, short_deadline) && g_cbs_head == NULL) {
-        if (gpr_time_cmp(gpr_now(), shutdown_deadline) > 0) {
+        if (gpr_time_cmp(gpr_now(GPR_CLOCK_REALTIME), shutdown_deadline) > 0) {
           timeout = 1;
           break;
         }