From: Paul Davis <paul@linuxaudiosystems.com>
Date: Tue, 25 Jul 2017 17:02:37 +0000 (-0400)
Subject: don't (re)create disk reader/writer if they already exist
X-Git-Tag: 6.0-pre0~45
X-Git-Url: https://main.carlh.net/gitweb/?p=ardour.git;a=commitdiff_plain;h=9d355f1390c4090da8195c50bd37e2b781ef87b3

don't (re)create disk reader/writer if they already exist
---

diff --git a/libs/ardour/track.cc b/libs/ardour/track.cc
index 3b0e891b2b..448ac02ec7 100644
--- a/libs/ardour/track.cc
+++ b/libs/ardour/track.cc
@@ -126,14 +126,17 @@ Track::add_processors_oh_children_of_mine ()
         } else if (_mode == NonLayered){
 	        dflags = DiskIOProcessor::Flag(dflags | DiskIOProcessor::NonLayered);
         }
+        if (!_disk_reader) {
+	        _disk_reader.reset (new DiskReader (_session, name(), dflags));
+	        _disk_reader->set_block_size (_session.get_block_size ());
+	        _disk_reader->set_route (boost::dynamic_pointer_cast<Route> (shared_from_this()));
+        }
 
-        _disk_reader.reset (new DiskReader (_session, name(), dflags));
-        _disk_reader->set_block_size (_session.get_block_size ());
-        _disk_reader->set_route (boost::dynamic_pointer_cast<Route> (shared_from_this()));
-
-        _disk_writer.reset (new DiskWriter (_session, name(), dflags));
-        _disk_writer->set_block_size (_session.get_block_size ());
-        _disk_writer->set_route (boost::dynamic_pointer_cast<Route> (shared_from_this()));
+        if (!_disk_writer) {
+	        _disk_writer.reset (new DiskWriter (_session, name(), dflags));
+	        _disk_writer->set_block_size (_session.get_block_size ());
+	        _disk_writer->set_route (boost::dynamic_pointer_cast<Route> (shared_from_this()));
+        }
 }
 
 void