From d049b582e1db60ee0f6fd02a40202145488c7288 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Sat, 2 Feb 2013 02:16:23 +0000
Subject: Add option to enable/disable canvas animation (fix/avoid #879).

git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@5016 a436a847-0d15-0410-975c-d299462d15a1
---
 src/server/Broadcaster.hpp | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

(limited to 'src/server/Broadcaster.hpp')

diff --git a/src/server/Broadcaster.hpp b/src/server/Broadcaster.hpp
index 3162742b..5de5ec8f 100644
--- a/src/server/Broadcaster.hpp
+++ b/src/server/Broadcaster.hpp
@@ -17,8 +17,10 @@
 #ifndef INGEN_ENGINE_CLIENTBROADCASTER_HPP
 #define INGEN_ENGINE_CLIENTBROADCASTER_HPP
 
+#include <atomic>
 #include <list>
 #include <map>
+#include <set>
 #include <string>
 
 #include <glibmm/thread.h>
@@ -41,12 +43,21 @@ namespace Server {
 class Broadcaster : public Interface
 {
 public:
-	Broadcaster() : _bundle_depth(0) {}
+	Broadcaster();
 	~Broadcaster();
 
 	void register_client(const Raul::URI& uri, SPtr<Interface> client);
 	bool unregister_client(const Raul::URI& uri);
 
+	void set_broadcast(const Raul::URI& client, bool broadcast);
+
+	/** Return true iff there are any clients with broadcasting enabled.
+	 *
+	 * This is used in the audio thread to decide whether or not notifications
+	 * should be calculated and emitted.
+	 */
+	bool must_broadcast() const { return _must_broadcast; }
+
 	/** A handle that represents a transfer of possibly several changes.
 	 *
 	 * This object going out of scope signifies the transfer is completed.
@@ -135,9 +146,11 @@ private:
 
 	typedef std::map< Raul::URI, SPtr<Interface> > Clients;
 
-	Glib::Mutex _clients_mutex;
-	Clients     _clients;
-	unsigned    _bundle_depth;
+	Glib::Mutex         _clients_mutex;
+	Clients             _clients;
+	std::set<Raul::URI> _broadcastees;
+	std::atomic<bool>   _must_broadcast;
+	unsigned            _bundle_depth;
 };
 
 } // namespace Server
-- 
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