From 87973e47176007bcc71d1faab68416d715c2e1af Mon Sep 17 00:00:00 2001
From: Chanhyuck Ko <limeelbee@gmail.com>
Date: Thu, 12 Dec 2024 14:41:22 +0900
Subject: [PATCH] feat: force reply Pong

---
 src/Libplanet.Net/Transports/NetMQTransport.cs | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/Libplanet.Net/Transports/NetMQTransport.cs b/src/Libplanet.Net/Transports/NetMQTransport.cs
index b3e1cfa211..dd7a3d365f 100644
--- a/src/Libplanet.Net/Transports/NetMQTransport.cs
+++ b/src/Libplanet.Net/Transports/NetMQTransport.cs
@@ -715,6 +715,23 @@ await ReplyMessageAsync(
                                     exc,
                                     "Something went wrong during message processing. {@Frames}",
                                     copied.ToArray());
+
+                                if (e.Socket.TrySendMultipartMessage(
+                                        _messageCodec.Encode(
+                                            new PongMsg(),
+                                            _privateKey,
+                                            _appProtocolVersionOptions.AppProtocolVersion,
+                                            AsPeer,
+                                            DateTimeOffset.UtcNow)))
+                                {
+                                    _logger.Debug("Socket reply has sent to {Socket}", e.Socket);
+                                }
+                                else
+                                {
+                                    _logger.Debug(
+                                        "Socket reply failed to send to {Socket}",
+                                        e.Socket);
+                                }
                             }
                         },
                         CancellationToken.None,