From a1a96da90403c0a16a9d9dcde9fd8b66da2daffe Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Wed, 13 Mar 2019 10:59:47 +0000
Subject: Fix locking of Playlist to protect against access from the GUI thread
 and at the same time traces like

Butler -> Content::end -> Playlist::active_frame_rate_change.
---
 src/lib/playlist.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/lib/playlist.h')

diff --git a/src/lib/playlist.h b/src/lib/playlist.h
index dd43ed2e3..a5dce1498 100644
--- a/src/lib/playlist.h
+++ b/src/lib/playlist.h
@@ -86,6 +86,7 @@ private:
 	void disconnect ();
 	void reconnect (boost::shared_ptr<const Film> film);
 
+	mutable boost::mutex _mutex;
 	/** List of content.  Kept sorted in position order. */
 	ContentList _content;
 	bool _sequence;
-- 
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