From: Stephan Bosch <stephan@dovecot.fi>
Date: Thu, 16 Jun 2016 20:01:06 +0000 (+0200)
Subject: lib: Created net_set_tcp_nodelay(), which enables the TCP_NODELAY socket option.
X-Git-Tag: 2.3.0.rc1~3489
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=2dca65ba6192532de99e668cd68ccf6015e77788;p=thirdparty%2Fdovecot%2Fcore.git

lib: Created net_set_tcp_nodelay(), which enables the TCP_NODELAY socket option.

This disables the TCP Nagle algorithm.
---

diff --git a/src/lib/net.c b/src/lib/net.c
index 9aea155617..da43a307d6 100644
--- a/src/lib/net.c
+++ b/src/lib/net.c
@@ -351,6 +351,13 @@ int net_set_cork(int fd ATTR_UNUSED, bool cork ATTR_UNUSED)
 #endif
 }
 
+int net_set_tcp_nodelay(int fd, bool nodelay)
+{
+	int val = nodelay;
+
+	return setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof(val));
+}
+
 int net_set_send_buffer_size(int fd, size_t size)
 {
 	int opt;
diff --git a/src/lib/net.h b/src/lib/net.h
index 3b0c9c7684..07fa69de1f 100644
--- a/src/lib/net.h
+++ b/src/lib/net.h
@@ -87,6 +87,8 @@ void net_set_nonblock(int fd, bool nonblock);
 /* Set TCP_CORK if supported, ie. don't send out partial frames.
    Returns 0 if ok, -1 if failed. */
 int net_set_cork(int fd, bool cork) ATTR_NOWARN_UNUSED_RESULT;
+/* Set TCP_NODELAY, which disables the Nagle algorithm. */
+int net_set_tcp_nodelay(int fd, bool nodelay);
 
 /* Set socket kernel buffer sizes */
 int net_set_send_buffer_size(int fd, size_t size);