add reading and writing into netstat

skynet-src/socket_info.h

@@ -18,6 +18,8 @@ struct socket_info {
 	uint64_t rtime;
 	uint64_t wtime;
 	int64_t wbuffer;
+	uint8_t reading;
+	uint8_t writing;
 	char name[128];
 	struct socket_info *next;
 };

skynet-src/socket_server.c

@@ -2185,6 +2185,8 @@ query_info(struct socket *s, struct socket_info *si) {
 	si->rtime = s->stat.rtime;
 	si->wtime = s->stat.wtime;
 	si->wbuffer = s->wb_size;
+	si->reading = s->reading;
+	si->writing = s->writing;
 
 	return 1;
 }