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Diffstat (limited to 'src/event/ngx_event_timer.c')
-rw-r--r--src/event/ngx_event_timer.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/src/event/ngx_event_timer.c b/src/event/ngx_event_timer.c
index 8176ed1c4..296c748ee 100644
--- a/src/event/ngx_event_timer.c
+++ b/src/event/ngx_event_timer.c
@@ -4,6 +4,81 @@
#include <ngx_event.h>
+ngx_rbtree_t *ngx_event_timer_rbtree;
+
+
+int ngx_event_timer_init(ngx_cycle_t *cycle)
+{
+ ngx_event_timer_rbtree = &sentinel;
+ sentinel.left = &sentinel;
+ sentinel.right = &sentinel;
+ sentinel.parent = &sentinel;
+
+ return NGX_OK;
+}
+
+
+void ngx_event_timer_done(ngx_cycle_t *cycle)
+{
+}
+
+
+int ngx_event_find_timer(void)
+{
+ ngx_rbtree_t *node;
+
+ node = ngx_rbtree_min(ngx_event_timer_rbtree);
+
+ if (node == &sentinel) {
+ return 0;
+
+ } else {
+ return node->key * NGX_TIMER_RESOLUTION - ngx_elapsed_msec;
+ }
+}
+
+
+void ngx_event_expire_timers(ngx_msec_t timer)
+{
+ ngx_event_t *ev;
+ ngx_rbtree_t *node;
+
+ for ( ;; ) {
+ node = ngx_rbtree_min(ngx_event_timer_rbtree);
+
+ if (node == &sentinel) {
+ break;
+ }
+
+ if ((ngx_msec_t) node->key <=
+ (ngx_elapsed_msec + timer) / NGX_TIMER_RESOLUTION)
+ {
+ ev = (ngx_event_t *)
+ ((char *) node - offsetof(ngx_event_t, rbtree));
+
+ ngx_del_timer(ev);
+
+ if (ev->delayed) {
+ ev->delayed = 0;
+ if (ev->ready == 0) {
+ continue;
+ }
+
+ } else {
+ ev->timedout = 1;
+ }
+
+ ev->event_handler(ev);
+ continue;
+ }
+
+ break;
+ }
+}
+
+
+#if 0
+
/* TODO: in multithreaded enviroment all timer operations must be
protected by the single mutex */
@@ -275,3 +350,6 @@ void ngx_event_expire_timers(ngx_msec_t timer)
}
#endif
}
+
+
+#endif