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-rw-r--r--src/event/ngx_event_timer.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/event/ngx_event_timer.h b/src/event/ngx_event_timer.h
index 3ff0e7c10..e7e49d28d 100644
--- a/src/event/ngx_event_timer.h
+++ b/src/event/ngx_event_timer.h
@@ -85,7 +85,7 @@ ngx_inline static void ngx_event_add_timer(ngx_event_t *ev, ngx_msec_t timer)
* for the fast connections.
*/
- if (key - ev->rbtree_key < 100 / NGX_TIMER_RESOLUTION) {
+ if (abs(key - ev->rbtree_key) < 100 / NGX_TIMER_RESOLUTION) {
ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0,
"event timer: %d, old: %d, new: %d",
ngx_event_ident(ev->data), ev->rbtree_key, key);