new file mode 100644
--- /dev/null
+++ b/src/event/modules/ngx_kqueue_module.c
@@ -0,0 +1,800 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ */
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_event.h>
+#include <ngx_kqueue_module.h>
+
+
+typedef struct {
+    int  changes;
+    int  events;
+} ngx_kqueue_conf_t;
+
+
+static ngx_int_t ngx_kqueue_init(ngx_cycle_t *cycle);
+static void ngx_kqueue_done(ngx_cycle_t *cycle);
+static ngx_int_t ngx_kqueue_add_event(ngx_event_t *ev, int event, u_int flags);
+static ngx_int_t ngx_kqueue_del_event(ngx_event_t *ev, int event, u_int flags);
+static ngx_int_t ngx_kqueue_set_event(ngx_event_t *ev, int filter, u_int flags);
+static ngx_int_t ngx_kqueue_process_changes(ngx_cycle_t *cycle, ngx_uint_t try);
+static ngx_int_t ngx_kqueue_process_events(ngx_cycle_t *cycle);
+static ngx_inline void ngx_kqueue_dump_event(ngx_log_t *log,
+                                             struct kevent *kev);
+
+static void *ngx_kqueue_create_conf(ngx_cycle_t *cycle);
+static char *ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf);
+
+
+int                    ngx_kqueue = -1;
+
+/*
+ * The "change_list" should be declared as ngx_thread_volatile.
+ * However, the use of the change_list is localized in kqueue functions and
+ * is protected by the mutex so even the "icc -ipo" should not build the code
+ * with the race condition.  Thus we avoid the declaration to make a more
+ * readable code.
+ */
+
+static struct kevent  *change_list, *change_list0, *change_list1;
+static struct kevent  *event_list;
+static int             max_changes, nchanges, nevents;
+
+#if (NGX_THREADS)
+static ngx_mutex_t    *list_mutex;
+static ngx_mutex_t    *kevent_mutex;
+#endif
+
+
+
+static ngx_str_t      kqueue_name = ngx_string("kqueue");
+
+static ngx_command_t  ngx_kqueue_commands[] = {
+
+    {ngx_string("kqueue_changes"),
+     NGX_EVENT_CONF|NGX_CONF_TAKE1,
+     ngx_conf_set_num_slot,
+     0,
+     offsetof(ngx_kqueue_conf_t, changes),
+     NULL},
+
+    {ngx_string("kqueue_events"),
+     NGX_EVENT_CONF|NGX_CONF_TAKE1,
+     ngx_conf_set_num_slot,
+     0,
+     offsetof(ngx_kqueue_conf_t, events),
+     NULL},
+
+    ngx_null_command
+};
+
+
+ngx_event_module_t  ngx_kqueue_module_ctx = {
+    &kqueue_name,
+    ngx_kqueue_create_conf,                /* create configuration */
+    ngx_kqueue_init_conf,                  /* init configuration */
+
+    {
+        ngx_kqueue_add_event,              /* add an event */
+        ngx_kqueue_del_event,              /* delete an event */
+        ngx_kqueue_add_event,              /* enable an event */
+        ngx_kqueue_del_event,              /* disable an event */
+        NULL,                              /* add an connection */
+        NULL,                              /* delete an connection */
+        ngx_kqueue_process_changes,        /* process the changes */
+        ngx_kqueue_process_events,         /* process the events */
+        ngx_kqueue_init,                   /* init the events */
+        ngx_kqueue_done                    /* done the events */
+    }
+
+};
+
+ngx_module_t  ngx_kqueue_module = {
+    NGX_MODULE,
+    &ngx_kqueue_module_ctx,                /* module context */
+    ngx_kqueue_commands,                   /* module directives */
+    NGX_EVENT_MODULE,                      /* module type */
+    NULL,                                  /* init module */
+    NULL                                   /* init process */
+};
+
+
+
+static ngx_int_t ngx_kqueue_init(ngx_cycle_t *cycle)
+{
+    struct timespec     ts;
+    ngx_kqueue_conf_t  *kcf;
+
+    kcf = ngx_event_get_conf(cycle->conf_ctx, ngx_kqueue_module);
+
+    if (ngx_kqueue == -1) {
+        ngx_kqueue = kqueue();
+
+        if (ngx_kqueue == -1) {
+            ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
+                          "kqueue() failed");
+            return NGX_ERROR;
+        }
+
+#if (NGX_THREADS)
+
+        if (!(list_mutex = ngx_mutex_init(cycle->log, 0))) {
+            return NGX_ERROR;
+        }
+
+        if (!(kevent_mutex = ngx_mutex_init(cycle->log, 0))) {
+            return NGX_ERROR;
+        }
+
+#endif
+    }
+
+    if (max_changes < kcf->changes) {
+        if (nchanges) {
+            ts.tv_sec = 0;
+            ts.tv_nsec = 0;
+
+            if (kevent(ngx_kqueue, change_list, nchanges, NULL, 0, &ts) == -1) {
+                ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
+                              "kevent() failed");
+                return NGX_ERROR;
+            }
+            nchanges = 0;
+        }
+
+        if (change_list0) {
+            ngx_free(change_list0);
+        }
+
+        change_list0 = ngx_alloc(kcf->changes * sizeof(struct kevent),
+                                 cycle->log);
+        if (change_list0 == NULL) {
+            return NGX_ERROR;
+        }
+
+        if (change_list1) {
+            ngx_free(change_list1);
+        }
+
+        change_list1 = ngx_alloc(kcf->changes * sizeof(struct kevent),
+                                 cycle->log);
+        if (change_list1 == NULL) {
+            return NGX_ERROR;
+        }
+
+        change_list = change_list0;
+    }
+
+    max_changes = kcf->changes;
+
+    if (nevents < kcf->events) {
+        if (event_list) {
+            ngx_free(event_list);
+        }
+
+        event_list = ngx_alloc(kcf->events * sizeof(struct kevent), cycle->log);
+        if (event_list == NULL) {
+            return NGX_ERROR;
+        }
+    }
+
+    nevents = kcf->events;
+
+    ngx_io = ngx_os_io;
+
+    ngx_event_actions = ngx_kqueue_module_ctx.actions;
+
+    ngx_event_flags = NGX_USE_ONESHOT_EVENT
+#if (HAVE_CLEAR_EVENT)
+                     |NGX_USE_CLEAR_EVENT
+#else
+                     |NGX_USE_LEVEL_EVENT
+#endif
+#if (HAVE_LOWAT_EVENT)
+                     |NGX_HAVE_LOWAT_EVENT
+#endif
+                     |NGX_HAVE_KQUEUE_EVENT;
+
+    return NGX_OK;
+}
+
+
+static void ngx_kqueue_done(ngx_cycle_t *cycle)
+{
+    if (close(ngx_kqueue) == -1) {
+        ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
+                      "kqueue close() failed");
+    }
+
+    ngx_kqueue = -1;
+
+#if (NGX_THREADS)
+    ngx_mutex_destroy(kevent_mutex);
+    ngx_mutex_destroy(list_mutex);
+#endif
+
+    ngx_free(change_list1);
+    ngx_free(change_list0);
+    ngx_free(event_list);
+
+    change_list1 = NULL;
+    change_list0 = NULL;
+    change_list = NULL;
+    event_list = NULL;
+    max_changes = 0;
+    nchanges = 0;
+    nevents = 0;
+}
+
+
+static ngx_int_t ngx_kqueue_add_event(ngx_event_t *ev, int event, u_int flags)
+{
+    ngx_int_t          rc;
+    ngx_event_t       *e;
+    ngx_connection_t  *c;
+
+    ev->active = 1;
+    ev->disabled = 0;
+    ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1 : 0;
+
+    if (ngx_mutex_lock(list_mutex) == NGX_ERROR) {
+        return NGX_ERROR;
+    }
+
+    if (nchanges > 0
+        && ev->index < (u_int) nchanges
+        && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
+                                                             == (uintptr_t) ev)
+    {
+        if (change_list[ev->index].flags == EV_DISABLE) {
+
+            /*
+             * if the EV_DISABLE is still not passed to a kernel
+             * we will not pass it
+             */
+
+            ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
+                           "kevent activated: %d: ft:%d",
+                           ngx_event_ident(ev->data), event);
+
+            if (ev->index < (u_int) --nchanges) {
+                e = (ngx_event_t *) change_list[nchanges].udata;
+                change_list[ev->index] = change_list[nchanges];
+                e->index = ev->index;
+            }
+
+            ngx_mutex_unlock(list_mutex);
+
+            return NGX_OK;
+        }
+
+        c = ev->data;
+
+        ngx_log_error(NGX_LOG_ALERT, ev->log, 0,
+                      "previous event on #%d were not passed in kernel", c->fd);
+
+        ngx_mutex_unlock(list_mutex);
+
+        return NGX_ERROR;
+    }
+
+    rc = ngx_kqueue_set_event(ev, event, EV_ADD|EV_ENABLE|flags);
+
+    ngx_mutex_unlock(list_mutex);
+
+    return rc;
+}
+
+
+static ngx_int_t ngx_kqueue_del_event(ngx_event_t *ev, int event, u_int flags)
+{
+    ngx_int_t     rc;
+    ngx_event_t  *e;
+
+    ev->active = 0;
+    ev->disabled = 0;
+
+    if (ngx_mutex_lock(list_mutex) == NGX_ERROR) {
+        return NGX_ERROR;
+    }
+
+    if (nchanges > 0
+        && ev->index < (u_int) nchanges
+        && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
+                                                             == (uintptr_t) ev)
+    {
+        ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
+                       "kevent deleted: %d: ft:%d",
+                       ngx_event_ident(ev->data), event);
+
+        /* if the event is still not passed to a kernel we will not pass it */
+
+        if (ev->index < (u_int) --nchanges) {
+            e = (ngx_event_t *) change_list[nchanges].udata;
+            change_list[ev->index] = change_list[nchanges];
+            e->index = ev->index;
+        }
+
+        ngx_mutex_unlock(list_mutex);
+
+        return NGX_OK;
+    }
+
+    /*
+     * when the file descriptor is closed the kqueue automatically deletes
+     * its filters so we do not need to delete explicity the event
+     * before the closing the file descriptor.
+     */
+
+    if (flags & NGX_CLOSE_EVENT) {
+        ngx_mutex_unlock(list_mutex);
+        return NGX_OK;
+    }
+
+    if (flags & NGX_DISABLE_EVENT) {
+        ev->disabled = 1;
+    }
+
+    rc = ngx_kqueue_set_event(ev, event,
+                           flags & NGX_DISABLE_EVENT ? EV_DISABLE : EV_DELETE);
+
+    ngx_mutex_unlock(list_mutex);
+
+    return rc;
+}
+
+
+static ngx_int_t ngx_kqueue_set_event(ngx_event_t *ev, int filter, u_int flags)
+{
+    struct kevent     *kev;
+    struct timespec    ts;
+    ngx_connection_t  *c;
+
+    c = ev->data;
+
+    ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
+                   "kevent set event: %d: ft:%d fl:%04X",
+                   c->fd, filter, flags);
+
+    if (nchanges >= max_changes) {
+        ngx_log_error(NGX_LOG_WARN, ev->log, 0,
+                      "kqueue change list is filled up");
+
+        ts.tv_sec = 0;
+        ts.tv_nsec = 0;
+
+        if (kevent(ngx_kqueue, change_list, nchanges, NULL, 0, &ts) == -1) {
+            ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, "kevent() failed");
+            return NGX_ERROR;
+        }
+
+        nchanges = 0;
+    }
+
+    kev = &change_list[nchanges];
+
+    kev->ident = c->fd;
+    kev->filter = filter;
+    kev->flags = flags;
+    kev->udata = (void *) ((uintptr_t) ev | ev->instance);
+
+    if (filter == EVFILT_VNODE) {
+        kev->fflags = NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND
+                                 |NOTE_ATTRIB|NOTE_RENAME
+#if (__FreeBSD__ == 4 && __FreeBSD_version >= 430000) \
+    || __FreeBSD_version >= 500018
+                                 |NOTE_REVOKE
+#endif
+                                       ;
+        kev->data = 0;
+
+    } else {
+#if (HAVE_LOWAT_EVENT)
+        if (flags & NGX_LOWAT_EVENT) {
+            kev->fflags = NOTE_LOWAT;
+            kev->data = ev->available;
+
+        } else {
+            kev->fflags = 0;
+            kev->data = 0;
+        }
+#else
+        kev->fflags = 0;
+        kev->data = 0;
+#endif
+    }
+
+    ev->index = nchanges;
+    nchanges++;
+
+    return NGX_OK;
+}
+
+
+static ngx_int_t ngx_kqueue_process_events(ngx_cycle_t *cycle)
+{
+    int                events, n;
+    ngx_int_t          i, instance;
+    ngx_uint_t         lock, accept_lock, expire;
+    ngx_err_t          err;
+    ngx_msec_t         timer;
+    ngx_event_t       *ev;
+    ngx_epoch_msec_t   delta;
+    struct timeval     tv;
+    struct timespec    ts, *tp;
+
+    for ( ;; ) {
+        timer = ngx_event_find_timer();
+
+#if (NGX_THREADS)
+
+        if (timer == NGX_TIMER_ERROR) {
+            return NGX_ERROR;
+        }
+
+        if (timer == NGX_TIMER_INFINITE || timer > 500) {
+            timer = 500;
+            break;
+        }
+
+#endif
+
+        if (timer != 0) {
+            break;
+        }
+
+        ngx_log_debug0(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
+                       "kevent expired timer");
+
+        ngx_event_expire_timers((ngx_msec_t)
+                                    (ngx_elapsed_msec - ngx_old_elapsed_msec));
+
+        if (ngx_posted_events && ngx_threaded) {
+            ngx_wakeup_worker_thread(cycle);
+        }
+    }
+
+    ngx_old_elapsed_msec = ngx_elapsed_msec;
+    expire = 1;
+    accept_lock = 0;
+
+    if (ngx_accept_mutex) {
+        if (ngx_accept_disabled > 0) {
+            ngx_accept_disabled--;
+
+        } else {
+            if (ngx_trylock_accept_mutex(cycle) == NGX_ERROR) {
+                return NGX_ERROR;
+            }
+
+            if (ngx_accept_mutex_held) {
+                accept_lock = 1;
+
+            } else if (timer == NGX_TIMER_INFINITE
+                       || timer > ngx_accept_mutex_delay)
+            {
+                timer = ngx_accept_mutex_delay;
+                expire = 0;
+            }
+        }
+    }
+
+    if (ngx_threaded) {
+        if (ngx_kqueue_process_changes(cycle, 0) == NGX_ERROR) {
+            ngx_accept_mutex_unlock();
+            return NGX_ERROR;
+        }
+
+        n = 0;
+
+    } else {
+        n = nchanges;
+        nchanges = 0;
+    }
+
+    if (timer == NGX_TIMER_INFINITE) {
+        tp = NULL;
+        expire = 0;
+
+    } else {
+        ts.tv_sec = timer / 1000;
+        ts.tv_nsec = (timer % 1000) * 1000000;
+        tp = &ts;
+    }
+
+    ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
+                   "kevent timer: %d, changes: %d", timer, n);
+
+    events = kevent(ngx_kqueue, change_list, n, event_list, nevents, tp);
+
+    if (events == -1) {
+        err = ngx_errno;
+    } else {
+        err = 0;
+    }
+
+    ngx_gettimeofday(&tv);
+    ngx_time_update(tv.tv_sec);
+
+    ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
+                   "kevent events: %d", events);
+
+    delta = ngx_elapsed_msec;
+    ngx_elapsed_msec = (ngx_epoch_msec_t) tv.tv_sec * 1000
+                                          + tv.tv_usec / 1000 - ngx_start_msec;
+
+    if (err) {
+        ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
+                      cycle->log, err, "kevent() failed");
+        ngx_accept_mutex_unlock();
+        return NGX_ERROR;
+    }
+
+    if (timer != NGX_TIMER_INFINITE) {
+        delta = ngx_elapsed_msec - delta;
+
+        ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
+                       "kevent timer: %d, delta: %d", timer, (int) delta);
+
+    } else {
+        if (events == 0) {
+            ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
+                          "kevent() returned no events without timeout");
+            ngx_accept_mutex_unlock();
+            return NGX_ERROR;
+        }
+    }
+
+    if (events > 0) {
+        if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
+            ngx_accept_mutex_unlock();
+            return NGX_ERROR;
+        }
+
+        lock = 1;
+
+    } else {
+        lock =0;
+    }
+
+    for (i = 0; i < events; i++) {
+
+        ngx_kqueue_dump_event(cycle->log, &event_list[i]);
+
+        if (event_list[i].flags & EV_ERROR) {
+            ngx_log_error(NGX_LOG_ALERT, cycle->log, event_list[i].data,
+                          "kevent() error on %d", event_list[i].ident);
+            continue;
+        }
+
+        ev = (ngx_event_t *) event_list[i].udata;
+
+        switch (event_list[i].filter) {
+
+        case EVFILT_READ:
+        case EVFILT_WRITE:
+
+            instance = (uintptr_t) ev & 1;
+            ev = (ngx_event_t *) ((uintptr_t) ev & (uintptr_t) ~1);
+
+            if (ev->closed || ev->instance != instance) {
+
+                /*
+                 * the stale event from a file descriptor
+                 * that was just closed in this iteration
+                 */
+
+                ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
+                               "kevent: stale event " PTR_FMT, ev);
+                continue;
+            }
+
+            if (ev->log && (ev->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
+                ngx_kqueue_dump_event(ev->log, &event_list[i]);
+            }
+
+#if (NGX_THREADS)
+
+            if (ngx_threaded && !ev->accept) {
+                ev->posted_ready = 1;
+                ev->posted_available = event_list[i].data;
+
+                if (event_list[i].flags & EV_EOF) {
+                    ev->posted_eof = 1;
+                    ev->posted_errno = event_list[i].fflags;
+                }
+
+                ngx_post_event(ev);
+
+                continue;
+            }
+
+#endif
+
+            ev->available = event_list[i].data;
+
+            if (event_list[i].flags & EV_EOF) {
+                ev->pending_eof = 1;
+                ev->kq_errno = event_list[i].fflags;
+            }
+
+            ev->ready = 1;
+
+            break;
+
+        case EVFILT_VNODE:
+            ev->kq_vnode = 1;
+
+            break;
+
+        case EVFILT_AIO:
+            ev->complete = 1;
+            ev->ready = 1;
+
+            break;
+
+        default:
+            ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
+                          "unexpected kevent() filter %d",
+                          event_list[i].filter);
+            continue;
+        }
+
+        if (!ngx_threaded && !ngx_accept_mutex_held) {
+            ev->event_handler(ev);
+            continue;
+        }
+
+        if (!ev->accept) {
+            ngx_post_event(ev);
+            continue;
+        }
+
+        if (ngx_accept_disabled > 0) {
+            continue;
+        }
+
+        ngx_mutex_unlock(ngx_posted_events_mutex);
+
+        ev->event_handler(ev);
+
+        if (ngx_accept_disabled > 0) {
+            ngx_accept_mutex_unlock();
+            accept_lock = 0;
+        }
+
+        if (i + 1 == events) {
+            lock = 0;
+            break;
+        }
+
+        if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
+            if (accept_lock) {
+                ngx_accept_mutex_unlock();
+            }
+            return NGX_ERROR;
+        }
+    }
+
+    if (accept_lock) {
+        ngx_accept_mutex_unlock();
+    }
+
+    if (lock) {
+        ngx_mutex_unlock(ngx_posted_events_mutex);
+    }
+
+    if (expire && delta) {
+        ngx_event_expire_timers((ngx_msec_t) delta);
+    }
+
+    if (ngx_posted_events) {
+        if (ngx_threaded) {
+            ngx_wakeup_worker_thread(cycle);
+
+        } else {
+            ngx_event_process_posted(cycle);
+        }
+    }
+
+    return NGX_OK;
+}
+
+
+static ngx_int_t ngx_kqueue_process_changes(ngx_cycle_t *cycle, ngx_uint_t try)
+{
+    int               n;
+    ngx_int_t         rc;
+    ngx_err_t         err;
+    struct timespec   ts;
+    struct kevent    *changes;
+
+    if (ngx_mutex_lock(kevent_mutex) == NGX_ERROR) {
+        return NGX_ERROR;
+    }
+
+    if (ngx_mutex_lock(list_mutex) == NGX_ERROR) {
+        ngx_mutex_unlock(kevent_mutex);
+        return NGX_ERROR;
+    }
+
+    if (nchanges == 0) {
+        ngx_mutex_unlock(list_mutex);
+        ngx_mutex_unlock(kevent_mutex);
+        return NGX_OK;
+    }
+
+    changes = change_list;
+    if (change_list == change_list0) {
+        change_list = change_list1;
+    } else {
+        change_list = change_list0;
+    }
+
+    n = nchanges;
+    nchanges = 0;
+
+    ngx_mutex_unlock(list_mutex);
+
+    ts.tv_sec = 0;
+    ts.tv_nsec = 0;
+
+    ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
+                   "kevent changes: %d", n);
+
+    if (kevent(ngx_kqueue, changes, n, NULL, 0, &ts) == -1) {
+        err = ngx_errno;
+        ngx_log_error((err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT,
+                      cycle->log, err, "kevent() failed");
+        rc = NGX_ERROR;
+
+    } else {
+        rc = NGX_OK;
+    }
+
+    ngx_mutex_unlock(kevent_mutex);
+
+    return rc;
+}
+
+
+static ngx_inline void ngx_kqueue_dump_event(ngx_log_t *log, struct kevent *kev)
+{
+    ngx_log_debug6(NGX_LOG_DEBUG_EVENT, log, 0,
+                   (kev->ident > 0x8000000 && kev->ident != (unsigned) -1) ?
+                    "kevent: " PTR_FMT ": ft:%d fl:%04X ff:%08X d:%d ud:"
+                                                                       PTR_FMT:
+                    "kevent: %d: ft:%d fl:%04X ff:%08X d:%d ud:" PTR_FMT,
+                    kev->ident, kev->filter,
+                    kev->flags, kev->fflags,
+                    kev->data, kev->udata);
+}
+
+
+static void *ngx_kqueue_create_conf(ngx_cycle_t *cycle)
+{
+    ngx_kqueue_conf_t  *kcf;
+
+    ngx_test_null(kcf, ngx_palloc(cycle->pool, sizeof(ngx_kqueue_conf_t)),
+                  NGX_CONF_ERROR);
+
+    kcf->changes = NGX_CONF_UNSET;
+    kcf->events = NGX_CONF_UNSET;
+
+    return kcf;
+}
+
+
+static char *ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf)
+{
+    ngx_kqueue_conf_t *kcf = conf;
+
+    ngx_conf_init_value(kcf->changes, 512);
+    ngx_conf_init_value(kcf->events, 512);
+
+    return NGX_CONF_OK;
+}