From a2133aec3b313bb370c0cf88173de33ce7cba465 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Andr=C3=A9?= <martichou.andre@gmail.com>
Date: Mon, 7 Dec 2020 16:56:56 +0100
Subject: [PATCH] blocking: add tcp_keepalive option (#1100)

---
 src/blocking/client.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/blocking/client.rs b/src/blocking/client.rs
index 3684483..60f6992 100644
--- a/src/blocking/client.rs
+++ b/src/blocking/client.rs
@@ -409,6 +409,18 @@ impl ClientBuilder {
         self.with_inner(move |inner| inner.local_address(addr))
     }
 
+    /// Set that all sockets have `SO_KEEPALIVE` set with the supplied duration.
+    ///
+    /// If `None`, the option will not be set.
+    ///
+    /// Default is 60 seconds.
+    pub fn tcp_keepalive<D>(self, val: D) -> ClientBuilder
+        where
+            D: Into<Option<Duration>>,
+    {
+        self.with_inner(move |inner| inner.tcp_keepalive(val))
+    }
+
     // TLS options
 
     /// Add a custom root certificate.