From ac94633b75f69e326936ed33c5527b4eaee81bd4 Mon Sep 17 00:00:00 2001
From: Yuriy Kulikov <827794+yuriykulikov@users.noreply.github.com>
Date: Wed, 4 May 2022 17:09:49 +0200
Subject: [PATCH] client: respond to KEEPALIVE(RESPOND) frame

Client sends KEEPALIVE(EMPTY) in this case.
This change is required for the rsocket-cpp client to be able to
work with current rsocket-java and rsocket-kotlin servers, which
do send KEEPALIVE(RESPOND) to the client.
---
 rsocket/statemachine/RSocketStateMachine.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/rsocket/statemachine/RSocketStateMachine.cpp b/rsocket/statemachine/RSocketStateMachine.cpp
index 4d914052a..5a2a125ea 100644
--- a/rsocket/statemachine/RSocketStateMachine.cpp
+++ b/rsocket/statemachine/RSocketStateMachine.cpp
@@ -530,8 +530,7 @@ void RSocketStateMachine::onKeepAliveFrame(
     }
   } else {
     if (keepAliveRespond) {
-      closeWithError(Frame_ERROR::connectionError(
-          "client received keepalive with respond flag"));
+      sendKeepalive(FrameFlags::EMPTY_, std::move(data));
     } else if (keepaliveTimer_) {
       keepaliveTimer_->keepaliveReceived();
     }