--- a/src/core/ngx_file.h
+++ b/src/core/ngx_file.h
@@ -73,16 +73,25 @@ typedef struct {
     ngx_uint_t                 path_access;
     time_t                     time;
     ngx_fd_t                   fd;
-    ngx_err_t                  rename_error;
 
     unsigned                   create_path:1;
     unsigned                   delete_file:1;
-    unsigned                   log_rename_error:1;
 
     ngx_log_t                 *log;
 } ngx_ext_rename_file_t;
 
 
+typedef struct {
+    off_t                      size;
+    size_t                     buf_size;
+
+    ngx_uint_t                 access;
+    time_t                     time;
+
+    ngx_log_t                 *log;
+} ngx_copy_file_t;
+
+
 typedef struct ngx_tree_ctx_s  ngx_tree_ctx_t;
 
 typedef ngx_int_t (*ngx_tree_init_handler_pt) (void *ctx, void *prev);
@@ -117,9 +126,9 @@ ngx_int_t ngx_add_path(ngx_conf_t *cf, n
 ngx_int_t ngx_create_pathes(ngx_cycle_t *cycle, ngx_uid_t user);
 ngx_int_t ngx_ext_rename_file(ngx_str_t *src, ngx_str_t *to,
     ngx_ext_rename_file_t *ext);
+ngx_int_t ngx_copy_file(u_char *from, u_char *to, ngx_copy_file_t *cf);
 ngx_int_t ngx_walk_tree(ngx_tree_ctx_t *ctx, ngx_str_t *tree);
 
-void ngx_init_temp_number(void);
 ngx_atomic_uint_t ngx_next_temp_number(ngx_uint_t collision);
 
 char *ngx_conf_set_path_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
@@ -128,4 +137,8 @@ char *ngx_conf_merge_path_value(ngx_conf
 char *ngx_conf_set_access_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
 
 
+extern ngx_atomic_t      *ngx_temp_number;
+extern ngx_atomic_int_t   ngx_random_number;
+
+
 #endif /* _NGX_FILE_H_INCLUDED_ */