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-rw-r--r--src/vppinfra/tw_timer_template.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/vppinfra/tw_timer_template.c b/src/vppinfra/tw_timer_template.c
index 11a38890f9c..9ad74624521 100644
--- a/src/vppinfra/tw_timer_template.c
+++ b/src/vppinfra/tw_timer_template.c
@@ -827,6 +827,18 @@ u32 TW (tw_timer_first_expires_in_ticks) (TWT (tw_timer_wheel) * tw)
u32 first_expiring_index, fast_ring_index;
i32 delta;
+#if TW_TIMER_WHEELS > 1
+ fast_ring_index = tw->current_index[TW_TIMER_RING_FAST];
+ if (fast_ring_index == TW_SLOTS_PER_RING)
+ return 1;
+
+ first_expiring_index = clib_bitmap_next_set (tw->fast_slot_bitmap,
+ fast_ring_index);
+ if (first_expiring_index == ~0)
+ first_expiring_index = TW_SLOTS_PER_RING;
+
+#else
+
if (clib_bitmap_is_zero (tw->fast_slot_bitmap))
return TW_SLOTS_PER_RING;
@@ -838,6 +850,7 @@ u32 TW (tw_timer_first_expires_in_ticks) (TWT (tw_timer_wheel) * tw)
fast_ring_index);
if (first_expiring_index == ~0 && fast_ring_index != 0)
first_expiring_index = clib_bitmap_first_set (tw->fast_slot_bitmap);
+#endif
ASSERT (first_expiring_index != ~0);