From 6440f010eec82abb9c999771a8f493af44c6b937 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Thu, 21 Mar 2019 14:43:04 -0600
Subject: receive: implement flush semantics

---
 tun/tun_openbsd.go | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'tun/tun_openbsd.go')

diff --git a/tun/tun_openbsd.go b/tun/tun_openbsd.go
index 57edcb4..645bcca 100644
--- a/tun/tun_openbsd.go
+++ b/tun/tun_openbsd.go
@@ -237,6 +237,11 @@ func (tun *NativeTun) Write(buff []byte, offset int) (int, error) {
 	return tun.tunFile.Write(buff)
 }
 
+func (tun *NativeTun) Flush() error {
+	//TODO: can flushing be implemented by buffering and using sendmmsg?
+	return nil
+}
+
 func (tun *NativeTun) Close() error {
 	var err2 error
 	err1 := tun.tunFile.Close()
-- 
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