--- a/src/core/ngx_listen.h
+++ b/src/core/ngx_listen.h
@@ -9,36 +9,44 @@
 #include <ngx_connection.h>
 
 typedef struct {
-    ngx_socket_t  fd;
+    ngx_socket_t      fd;
 
     struct sockaddr  *sockaddr;
-    socklen_t         socklen;
-    size_t            addr;
+    socklen_t         socklen;    /* size of sockaddr */
+    int               addr;       /* offset to address in sockaddr */
+    int               addr_text_max_len;
     ngx_str_t         addr_text;
 
-    int           family;
-    int           type;
-    int           protocol;
-    int           flags;
+    int               family;
+    int               type;
+    int               protocol;
+    int               flags;      /* Winsock2 flags */
 
-    ngx_log_t    *log;
-    void         *server;
-    int         (*handler)(ngx_connection_t *c);
+    int             (*handler)(ngx_connection_t *c); /* handler of accepted
+                                                        connection */
+    void             *ctx;        /* ngx_http_conf_ctx_t, for example */
+    void             *servers;    /* array of ngx_http_in_addr_t, for example */
+
+    ngx_log_t        *log;
 
-    int           backlog;
-    time_t        post_accept_timeout;
+    int               backlog;
+    time_t            post_accept_timeout;  /* should be here because
+                                               of the deferred accept */
 
-    unsigned      done:1;
-    unsigned      inherited:1;
-    unsigned      nonblocking:1;
+    unsigned          bound:1;       /* already bound */
+    unsigned          inherited:1;   /* inherited from previous process */
+    unsigned          nonblocking:1;
 #if 0
-    unsigned      overlapped:1;
+    unsigned          overlapped:1;  /* Winsock2 overlapped */
 #endif
-    unsigned      shared:1;          /* shared between threads or processes */
+    unsigned          shared:1;    /* shared between threads or processes */
 #if (HAVE_DEFERRED_ACCEPT)
-    unsigned      deferred_accept:1;
+    unsigned          deferred_accept:1;
 #endif
 } ngx_listen_t;
 
 
+extern ngx_array_t ngx_listening_sockets;
+
+
 #endif /* _NGX_LISTEN_H_INCLUDED_ */