new file mode 100644
--- /dev/null
+++ b/src/http/ngx_http_log_handler.h
@@ -0,0 +1,65 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ */
+
+
+#ifndef _NGX_HTTP_LOG_HANDLER_H_INCLUDED_
+#define _NGX_HTTP_LOG_HANDLER_H_INCLUDED_
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_http.h>
+
+
+typedef u_char *(*ngx_http_log_op_pt) (ngx_http_request_t *r, u_char *buf,
+                                       uintptr_t data);
+
+#define NGX_HTTP_LOG_COPY_SHORT  (ngx_http_log_op_pt) 0
+#define NGX_HTTP_LOG_COPY_LONG   (ngx_http_log_op_pt) -1
+
+#define NGX_HTTP_LOG_ARG         (u_int) -1
+
+
+typedef struct {
+    size_t               len;
+    ngx_http_log_op_pt   op;
+    uintptr_t            data;
+} ngx_http_log_op_t;
+
+
+typedef struct {
+    ngx_str_t            name;
+    ngx_array_t         *ops;        /* array of ngx_http_log_op_t */
+} ngx_http_log_fmt_t;
+
+
+typedef struct {
+    ngx_str_t            name;
+    size_t               len;
+    ngx_http_log_op_pt   op;
+} ngx_http_log_op_name_t;
+
+
+typedef struct {
+    ngx_array_t          formats;    /* array of ngx_http_log_fmt_t */
+} ngx_http_log_main_conf_t;
+
+
+typedef struct {
+    ngx_open_file_t     *file;
+    ngx_array_t         *ops;        /* array of ngx_http_log_op_t */
+} ngx_http_log_t;
+
+
+typedef struct {
+    ngx_array_t         *logs;       /* array of ngx_http_log_t */
+    ngx_uint_t           off;        /* unsigned  off:1 */
+} ngx_http_log_loc_conf_t;
+
+
+extern ngx_http_log_op_name_t ngx_http_log_fmt_ops[];
+
+
+#endif /* _NGX_HTTP_LOG_HANDLER_H_INCLUDED_ */