From 77d12b490ed05e1257eb638ee47f55268b4dcfeb Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Fri, 6 Mar 2020 19:13:54 +0100
Subject: RT-safety use stack (not heap) for plugin pin mappings

---
 libs/ardour/ardour/plugin_insert.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'libs/ardour/ardour/plugin_insert.h')

diff --git a/libs/ardour/ardour/plugin_insert.h b/libs/ardour/ardour/plugin_insert.h
index 68c1aaa604..003df28a38 100644
--- a/libs/ardour/ardour/plugin_insert.h
+++ b/libs/ardour/ardour/plugin_insert.h
@@ -29,6 +29,7 @@
 
 #include <boost/weak_ptr.hpp>
 
+#include "pbd/stack_allocator.h"
 #include "pbd/timing.h"
 
 #include "ardour/ardour.h"
@@ -370,7 +371,8 @@ private:
 	/* ordered map [plugin instance ID] => ARDOUR::ChanMapping
 	 * TODO: consider replacing with boost::flat_map<> or std::vector<>.
 	 */
-	class PinMappings : public std::map <uint32_t, ARDOUR::ChanMapping> {
+	class PinMappings : public std::map <uint32_t, ARDOUR::ChanMapping, std::less<uint32_t>, PBD::StackAllocator<std::pair<const uint32_t, ARDOUR::ChanMapping>, 4> > 
+	{
 		public:
 			/* this emulates C++11's  std::map::at()
 			 * return mapping for given plugin instance */
-- 
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