From 8ec1a4d90fae0f8ec0477f84f21ef6954770f6f4 Mon Sep 17 00:00:00 2001
From: Vinnie Falco <vinnie.falco@gmail.com>
Date: Mon, 1 Apr 2019 18:14:25 -0700
Subject: [PATCH] Fix websocket keep-alive ping expiration

---
 CHANGELOG.md                                       | 1 +
 include/boost/beast/websocket/impl/stream_impl.hpp | 8 ++++++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index a7bc1908..937b2bdf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 Version 244:
 
 * Tidy up declval in some traits
+* Fix websocket keep-alive ping expiration
 
 --------------------------------------------------------------------------------
 
diff --git a/include/boost/beast/websocket/impl/stream_impl.hpp b/include/boost/beast/websocket/impl/stream_impl.hpp
index 0c8834fb..ec5557c3 100644
--- a/include/boost/beast/websocket/impl/stream_impl.hpp
+++ b/include/boost/beast/websocket/impl/stream_impl.hpp
@@ -424,8 +424,12 @@ struct stream<NextLayer, deflateSupported>::impl_type
             if(timeout_opt.idle_timeout != none())
             {
                 idle_counter = 0;
-                timer.expires_after(
-                    timeout_opt.idle_timeout);
+                if(timeout_opt.keep_alive_pings)
+                    timer.expires_after(
+                        timeout_opt.idle_timeout / 2);
+                else
+                    timer.expires_after(
+                        timeout_opt.idle_timeout);
                 timer.async_wait(
                     timeout_handler<Executor>(
                         ex, this->weak_from_this()));