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diff src/event/ngx_event_timer.h @ 493:975f62e77f02 release-0.1.21

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nginx-0.1.21-RELEASE import *) Bugfix: the ngx_http_stub_status_module showed incorrect statistics if "rtsig" method was used or if several worker process ran on SMP. *) Bugfix: nginx could not be built by the icc compiler on Linux or if the zlib-1.2.x library was building from sources. *) Bugfix: nginx could not be built on NetBSD 2.0.
author Igor Sysoev <igor@sysoev.ru>
date Tue, 22 Feb 2005 14:40:13 +0000
parents bbd6b0b4a2b1
children d4ea69372b94
line wrap: on
line diff
--- a/src/event/ngx_event_timer.h
+++ b/src/event/ngx_event_timer.h
@@ -16,8 +16,9 @@
 #define NGX_TIMER_INFINITE  -1
 #define NGX_TIMER_ERROR     -2
 
+
 /*
- * 32 bit timer key value resolution
+ * the 32-bit timer key value resolution
  *
  * 1 msec - 24 days
  * 10 msec - 8 months
@@ -27,6 +28,8 @@
 
 #define NGX_TIMER_RESOLUTION  1
 
+#define NGX_TIMER_LAZY_DELAY  300
+
 
 ngx_int_t ngx_event_timer_init(ngx_log_t *log);
 ngx_msec_t ngx_event_find_timer(void);
@@ -42,7 +45,8 @@ extern ngx_thread_volatile ngx_rbtree_t 
 extern ngx_rbtree_t                       ngx_event_timer_sentinel;
 
 
-static ngx_inline void ngx_event_del_timer(ngx_event_t *ev)
+static ngx_inline void
+ngx_event_del_timer(ngx_event_t *ev)
 {
     ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
                    "event timer del: %d: %d",
@@ -68,7 +72,8 @@ static ngx_inline void ngx_event_del_tim
 }
 
 
-static ngx_inline void ngx_event_add_timer(ngx_event_t *ev, ngx_msec_t timer)
+static ngx_inline void
+ngx_event_add_timer(ngx_event_t *ev, ngx_msec_t timer)
 {
     ngx_int_t  key;
 
@@ -83,11 +88,13 @@ static ngx_inline void ngx_event_add_tim
 
         /*
          * Use the previous timer value if a difference between them is less
-         * then 100 milliseconds.  It allows to minimize the rbtree operations
-         * for the fast connections.
+         * then NGX_TIMER_LAZY_DELAY milliseconds.  It allows to minimize
+         * the rbtree operations for the fast connections.
          */
 
-        if (abs(key - ev->rbtree_key) < 100 / NGX_TIMER_RESOLUTION) {
+        if (abs(key - ev->rbtree_key)
+                                 < NGX_TIMER_LAZY_DELAY / NGX_TIMER_RESOLUTION)
+        {
             ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0,
                            "event timer: %d, old: %i, new: %i",
                             ngx_event_ident(ev->data), ev->rbtree_key, key);