From 6ec128e8f673864855d12460f47c2c7b8dbde5c0 Mon Sep 17 00:00:00 2001
From: orignal <i2porignal@yandex.ru>
Date: Tue, 3 Feb 2026 17:01:52 -0500
Subject: [PATCH] wake up tunnel build queue if a message gets dropped

---
 libi2pd/TransitTunnel.cpp | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/libi2pd/TransitTunnel.cpp b/libi2pd/TransitTunnel.cpp
index 3c8b9946..e493361c 100644
--- a/libi2pd/TransitTunnel.cpp
+++ b/libi2pd/TransitTunnel.cpp
@@ -275,8 +275,13 @@ namespace tunnel
 
 	void TransitTunnels::PostTransitTunnelBuildMsg  (std::shared_ptr<I2NPMessage>&& msg)
 	{
-		if (msg && m_TunnelBuildMsgQueue.GetSize () < TRANSIT_TUNNELS_BUILD_MSG_QUEUE_MAX_SIZE)
-			m_TunnelBuildMsgQueue.Put (msg);
+		if (msg)
+		{
+			if (m_TunnelBuildMsgQueue.GetSize () < TRANSIT_TUNNELS_BUILD_MSG_QUEUE_MAX_SIZE)
+				m_TunnelBuildMsgQueue.Put (msg);
+			else
+				m_TunnelBuildMsgQueue.WakeUp (); // tell TBM thread to process queue
+		}
 	}
 
 	void TransitTunnels::HandleShortTransitTunnelBuildMsg (std::shared_ptr<I2NPMessage>&& msg)
@@ -607,7 +612,7 @@ namespace tunnel
 			auto tunnel = *it;
 			if (ts > tunnel->GetCreationTime () + TUNNEL_EXPIRATION_TIMEOUT ||
 			    ts + TUNNEL_EXPIRATION_TIMEOUT < tunnel->GetCreationTime () ||
-			    (!tunnel->GetNumTransmittedBytes () && ts > tunnel->GetCreationTime () + TUNNEL_EXPIRATION_THRESHOLD)) // inactive?
+			    (!tunnel->GetNumTransmittedBytes () && ts > tunnel->GetCreationTime () + 2*TUNNEL_EXPIRATION_THRESHOLD)) // inactive?
 			{
 				LogPrint (eLogDebug, "TransitTunnel: Transit tunnel with id ", tunnel->GetTunnelID (), " expired or inactive");
 				tunnels.RemoveTunnel (tunnel->GetTunnelID ());