From 07a651d2ec0590ad8315de0fd43492b7238af908 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Wed, 3 Sep 2014 05:17:16 +0200
Subject: [PATCH] release shared route pointer kept by InternalSend when
 dropping refs.

fixes "SessionHandleRef exists across session deletion"
when using AuxSends
---
 libs/ardour/ardour/internal_send.h | 2 ++
 libs/ardour/internal_send.cc       | 7 +++++++
 2 files changed, 9 insertions(+)

diff --git a/libs/ardour/ardour/internal_send.h b/libs/ardour/ardour/internal_send.h
index 6feeb35c6d..71d8049cae 100644
--- a/libs/ardour/ardour/internal_send.h
+++ b/libs/ardour/ardour/internal_send.h
@@ -65,8 +65,10 @@ class LIBARDOUR_API InternalSend : public Send
 	boost::shared_ptr<Route> _send_to;
 	PBD::ID _send_to_id;
 	PBD::ScopedConnection connect_c;
+	PBD::ScopedConnection source_connection;
 	PBD::ScopedConnectionList target_connections;
 
+	void send_from_going_away ();
 	void send_to_going_away ();
 	void send_to_property_changed (const PBD::PropertyChange&);
 	int  connect_when_legal ();
diff --git a/libs/ardour/internal_send.cc b/libs/ardour/internal_send.cc
index e5c7232f48..33b299dfee 100644
--- a/libs/ardour/internal_send.cc
+++ b/libs/ardour/internal_send.cc
@@ -58,6 +58,7 @@ InternalSend::InternalSend (Session& s,
 
 	init_gain ();
 
+	_send_from->DropReferences.connect_same_thread (source_connection, boost::bind (&InternalSend::send_from_going_away, this));
 	CycleStart.connect_same_thread (*this, boost::bind (&InternalSend::cycle_start, this, _1));
 }
 
@@ -117,6 +118,12 @@ InternalSend::target_io_changed ()
 	reset_panner();
 }
 
+void
+InternalSend::send_from_going_away ()
+{
+	_send_from.reset();
+}
+
 void
 InternalSend::send_to_going_away ()
 {