From 98e652f6f1d8f3d0bbc4600b1ef2ce471d8e6406 Mon Sep 17 00:00:00 2001
From: Nayana Bidari <nybidari@google.com>
Date: Tue, 25 Aug 2020 09:59:42 -0700
Subject: Support SO_LINGER socket option.

When SO_LINGER option is enabled, the close will not return until all the
queued messages are sent and acknowledged for the socket or linger timeout is
reached. If the option is not set, close will return immediately. This option
is mainly supported for connection oriented protocols such as TCP.

PiperOrigin-RevId: 328350576
---
 pkg/tcpip/tcpip.go | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'pkg/tcpip/tcpip.go')

diff --git a/pkg/tcpip/tcpip.go b/pkg/tcpip/tcpip.go
index 07c85ce59..290c4e138 100644
--- a/pkg/tcpip/tcpip.go
+++ b/pkg/tcpip/tcpip.go
@@ -978,6 +978,15 @@ const (
 	TCPTimeWaitReuseLoopbackOnly
 )
 
+// LingerOption is used by SetSockOpt/GetSockOpt to set/get the
+// duration for which a socket lingers before returning from Close.
+//
+// +stateify savable
+type LingerOption struct {
+	Enabled bool
+	Timeout time.Duration
+}
+
 // IPPacketInfo is the message structure for IP_PKTINFO.
 //
 // +stateify savable
-- 
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