new file mode 100644
--- /dev/null
+++ b/src/event/ngx_event.h
@@ -0,0 +1,127 @@
+#ifndef _NGX_EVENT_H_INCLUDED_
+#define _NGX_EVENT_H_INCLUDED_
+
+
+#include <ngx_config.h>
+#include <ngx_types.h>
+#include <ngx_log.h>
+
+typedef struct ngx_event_s       ngx_event_t;
+
+struct ngx_event_s {
+    void            *data;
+
+    int            (*event_handler)(ngx_event_t *ev);
+    int            (*close_handler)(ngx_event_t *ev);
+    void            *context;
+    char            *action;
+
+    ngx_event_t     *prev;     /* queue in select(), poll() */
+    ngx_event_t     *next;
+
+    int            (*timer_handler)(ngx_event_t *ev);
+    ngx_event_t     *timer_prev;
+    ngx_event_t     *timer_next;
+
+    u_int            timer_delta;
+    u_int            timer;
+
+    ngx_log_t       *log;
+
+    int              available; /* kqueue only:                              */
+                                /*   accept: number of sockets that wait     */
+                                /*           to be accepted                  */
+                                /*   read:   bytes to read                   */
+                                /*   write:  available space in buffer       */
+                                /* otherwise:                                */
+                                /*   accept: 1 if accept many, 0 otherwise   */
+
+    /* flags - int are probably faster on write then bits ??? */
+    unsigned         listening:1;
+    unsigned         write:1;
+
+    unsigned         ready:1;
+    unsigned         timedout:1;
+    unsigned         process:1;
+    unsigned         read_discarded:1;
+
+    unsigned         unexpected_eof:1;
+
+#if (HAVE_DEFERRED_ACCEPT)
+    unsigned         accept_filter:1;
+#endif
+#if (HAVE_KQUEUE)
+    unsigned         eof:1;
+    int              errno;
+#endif
+};
+
+typedef enum {
+    NGX_SELECT_EVENT = 0,
+#if (HAVE_POLL)
+    NGX_POLL_EVENT,
+#endif
+#if (HAVE_KQUEUE)
+    NGX_KQUEUE_EVENT,
+#endif
+} ngx_event_type_e ;
+
+typedef struct {
+    int  (*add)(ngx_event_t *ev, int event, u_int flags);
+    int  (*del)(ngx_event_t *ev, int event);
+    int  (*process)(ngx_log_t *log);
+/*
+    int  (*read)(ngx_event_t *ev, char *buf, size_t size);
+    int  (*write)(ngx_event_t *ev, char *buf, size_t size);
+*/
+} ngx_event_actions_t;
+
+
+#if (HAVE_KQUEUE)
+
+#define NGX_READ_EVENT     EVFILT_READ
+#define NGX_WRITE_EVENT    EVFILT_WRITE
+#define NGX_TIMER_EVENT    (-EVFILT_SYSCOUNT - 1)
+
+#define NGX_ONESHOT_EVENT  EV_ONESHOT
+#define NGX_CLEAR_EVENT    EV_CLEAR
+
+#else
+
+#define NGX_READ_EVENT     0
+#define NGX_WRITE_EVENT    1
+#define NGX_TIMER_EVENT    2
+
+#define NGX_ONESHOT_EVENT  1
+#define NGX_CLEAR_EVENT    2
+
+#endif
+
+
+#if (USE_KQUEUE)
+#define ngx_init_events      ngx_kqueue_init
+#define ngx_process_events   ngx_kqueue_process_events
+#define ngx_add_event        ngx_kqueue_add_event
+#define ngx_del_event        ngx_kqueue_del_event
+#else
+#define ngx_init_events     (ngx_event_init[ngx_event_type])
+#define ngx_process_events   ngx_event_actions.process
+#define ngx_add_event        ngx_event_actions.add
+#define ngx_del_event        ngx_event_actions.del
+#endif
+
+
+extern ngx_event_t          *ngx_read_events;
+extern ngx_event_t          *ngx_write_events;
+extern ngx_connection_t     *ngx_connections;
+
+#if !(USE_KQUEUE)
+extern ngx_event_actions_t   ngx_event_actions;
+extern ngx_event_type_e      ngx_event_type;
+#endif
+
+
+void ngx_worker(ngx_listen_t *sock, int n, ngx_pool_t *pool, ngx_log_t *log);
+
+
+#endif /* _NGX_EVENT_H_INCLUDED_ */