From: Guus Sliepen <guus@tinc-vpn.org>
Date: Sun, 17 Jul 2011 17:34:01 +0000 (+0200)
Subject: Flush output buffer in send_tcppacket().
X-Git-Tag: release-1.0.16~2
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=50fcfea127c9d2fdf8894498a9fdcc6fb3bbb2ce;p=oweals%2Ftinc.git

Flush output buffer in send_tcppacket().

This is mainly important for Windows, where the select() call in the
main thread is not being woken up when the tapreader thread calls
route(), causing a delay of up to 1 second before the output buffer is
flushed. This would cause bad performance when UDP communication is not
possible.
---

diff --git a/src/protocol_misc.c b/src/protocol_misc.c
index 6f7ab03..3d405bc 100644
--- a/src/protocol_misc.c
+++ b/src/protocol_misc.c
@@ -129,7 +129,7 @@ bool send_tcppacket(connection_t *c, const vpn_packet_t *packet) {
 	if(!send_request(c, "%d %hd", PACKET, packet->len))
 		return false;
 
-	return send_meta(c, (char *)packet->data, packet->len);
+	return send_meta(c, (char *)packet->data, packet->len) && flush_meta(c);
 }
 
 bool tcppacket_h(connection_t *c) {