Add basic test of playlist layering.

git-svn-id: svn://localhost/ardour2/branches/3.0@11011 d708f5d6-7413-0410-9779-e7cbd77b26cf

2 files changed, 8 insertions, 0 deletions

diff --git a/libs/pbd/enumwriter.cc b/libs/pbd/enumwriter.cc
index 5263a886fb..3ce296c664 100644
--- a/libs/pbd/enumwriter.cc
+++ b/libs/pbd/enumwriter.cc
@@ -73,6 +73,13 @@ EnumWriter::instance()
 	return *_instance;
 }
 
+void
+EnumWriter::destroy ()
+{
+	delete _instance;
+	_instance = 0;
+}
+
 EnumWriter::EnumWriter ()
 {
 }
diff --git a/libs/pbd/pbd/enumwriter.h b/libs/pbd/pbd/enumwriter.h
index a253719c85..600f59bf29 100644
--- a/libs/pbd/pbd/enumwriter.h
+++ b/libs/pbd/pbd/enumwriter.h
@@ -37,6 +37,7 @@ class unknown_enumeration : public std::exception {
 class EnumWriter {
   public:
 	static EnumWriter& instance();
+	static void destroy();
 
 	void register_distinct (std::string type, std::vector<int>, std::vector<std::string>);
 	void register_bits     (std::string type, std::vector<int>, std::vector<std::string>);