in tcp write callback routine dont reset read byte count if write and read.

in tcp write callback and write and read and write is done perform callback.
tcp connection is selected to not toggle readwrite and give closed callback.

services/outside_network.c

@@ -516,6 +516,8 @@ outnet_tcp_take_into_use(struct waiting_tcp* w)
 	log_assert(w->pkt);
 	log_assert(w->pkt_len > 0);
 	log_assert(w->addrlen > 0);
+	pend->c->tcp_do_toggle_rw = 0;
+	pend->c->tcp_do_close = 0;
 	/* open socket */
 	s = outnet_get_tcp_fd(&w->addr, w->addrlen, w->outnet->tcp_mss, w->outnet->ip_dscp);
 

util/netevent.c

@@ -995,13 +995,23 @@ tcp_callback_writer(struct comm_point* c)
 	sldns_buffer_clear(c->buffer);
 	if(c->tcp_do_toggle_rw)
 		c->tcp_is_reading = 1;
-	c->tcp_byte_count = 0;
+	if(!c->tcp_write_and_read)
+		c->tcp_byte_count = 0;
 	/* switch from listening(write) to listening(read) */
 	if(c->tcp_req_info) {
 		tcp_req_info_handle_writedone(c->tcp_req_info);
 	} else {
 		comm_point_stop_listening(c);
-		comm_point_start_listening(c, -1, c->tcp_timeout_msec);
+		if(c->tcp_write_and_read) {
+			fptr_ok(fptr_whitelist_comm_point(c->callback));
+			if( (*c->callback)(c, c->cb_arg, NETEVENT_PKT_WRITTEN,
+				&c->repinfo) ) {
+				comm_point_start_listening(c, -1,
+					c->tcp_timeout_msec);
+			}
+		} else {
+			comm_point_start_listening(c, -1, c->tcp_timeout_msec);
+		}
 	}
 }