From 481cf37052bca99a802831e7c8b8c6c39de52017 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Wed, 19 Aug 2020 19:07:41 +0200
Subject: [PATCH] RT-safe jack transport time-master

Prefer a try-lock, instead of locking the tempo-map.
---
 libs/backends/jack/jack_session.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libs/backends/jack/jack_session.cc b/libs/backends/jack/jack_session.cc
index b55c8ee66f..f205234d8d 100644
--- a/libs/backends/jack/jack_session.cc
+++ b/libs/backends/jack/jack_session.cc
@@ -128,7 +128,7 @@ JACKSession::timebase_callback (jack_transport_state_t /*state*/,
 	TempoMetric metric (tempo_map.metric_at (tf));
 
 	try {
-		bbt = tempo_map.bbt_at_sample (tf);
+		bbt = tempo_map.bbt_at_sample_rt (tf);
 
 		pos->bar = bbt.bars;
 		pos->beat = bbt.beats;