From 71efeed0e7c8b847172549d76c47f859327150bc Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Thu, 25 Dec 2014 00:02:48 +0300
Subject: In linux enable thin-stream mode.

It should reduce latency in some cases.

See more info here: https://www.kernel.org/doc/Documentation/networking/tcp-thin.txt
---
 src/common/socket.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/common/socket.c b/src/common/socket.c
index f307dc4a9..09521c312 100644
--- a/src/common/socket.c
+++ b/src/common/socket.c
@@ -29,8 +29,12 @@
 #	include <errno.h>
 #	include <net/if.h>
 #	include <netdb.h>
+#if defined __linux__ || defined __linux
+#       include <linux/tcp.h>
+#else
 #	include <netinet/in.h>
 #	include <netinet/tcp.h>
+#endif
 #	include <sys/ioctl.h>
 #	include <sys/socket.h>
 #	include <sys/time.h>
@@ -333,6 +337,13 @@ void setsocketopts(int fd, struct hSockOpt *opt) {
 	lopt.l_linger = 0; // Do not care
 	if( sSetsockopt(fd, SOL_SOCKET, SO_LINGER, (char*)&lopt, sizeof(lopt)) )
 		ShowWarning("setsocketopts: Unable to set SO_LINGER mode for connection #%d!\n", fd);
+
+#ifdef TCP_THIN_LINEAR_TIMEOUTS
+    setsockopt(fd, IPPROTO_TCP, TCP_THIN_LINEAR_TIMEOUTS, &yes, sizeof yes);
+#endif
+#ifdef TCP_THIN_DUPACK
+    setsockopt(fd, IPPROTO_TCP, TCP_THIN_DUPACK, &yes, sizeof yes);
+#endif
 }
 
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