1 files changed, 97 insertions, 0 deletions
diff --git a/src/server/Broadcaster.cpp b/src/server/Broadcaster.cpp
new file mode 100644
index 00000000..f8b58beb
--- /dev/null
+++ b/src/server/Broadcaster.cpp
@@ -0,0 +1,97 @@
+/*
+  This file is part of Ingen.
+  Copyright 2007-2015 David Robillard <http://drobilla.net/>
+
+  Ingen is free software: you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free
+  Software Foundation, either version 3 of the License, or any later version.
+
+  Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for details.
+
+  You should have received a copy of the GNU Affero General Public License
+  along with Ingen.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <utility>
+
+#include "ingen/Interface.hpp"
+
+#include "Broadcaster.hpp"
+#include "PluginImpl.hpp"
+#include "BlockFactory.hpp"
+
+namespace ingen {
+namespace server {
+
+Broadcaster::Broadcaster()
+	: _must_broadcast(false)
+	, _bundle_depth(0)
+{}
+
+Broadcaster::~Broadcaster()
+{
+	std::lock_guard<std::mutex> lock(_clients_mutex);
+	_clients.clear();
+	_broadcastees.clear();
+}
+
+/** Register a client to receive messages over the notification band.
+ */
+void
+Broadcaster::register_client(SPtr<Interface> client)
+{
+	std::lock_guard<std::mutex> lock(_clients_mutex);
+	_clients.insert(client);
+}
+
+/** Remove a client from the list of registered clients.
+ *
+ * @return true if client was found and removed.
+ */
+bool
+Broadcaster::unregister_client(SPtr<Interface> client)
+{
+	std::lock_guard<std::mutex> lock(_clients_mutex);
+	const size_t erased = _clients.erase(client);
+	_broadcastees.erase(client);
+	return (erased > 0);
+}
+
+void
+Broadcaster::set_broadcast(SPtr<Interface> client, bool broadcast)
+{
+	if (broadcast) {
+		_broadcastees.insert(client);
+	} else {
+		_broadcastees.erase(client);
+	}
+	_must_broadcast.store(!_broadcastees.empty());
+}
+
+void
+Broadcaster::send_plugins(const BlockFactory::Plugins& plugins)
+{
+	std::lock_guard<std::mutex> lock(_clients_mutex);
+	for (const auto& c : _clients) {
+		send_plugins_to(c.get(), plugins);
+	}
+}
+
+void
+Broadcaster::send_plugins_to(Interface*                   client,
+                             const BlockFactory::Plugins& plugins)
+{
+	client->bundle_begin();
+
+	for (const auto& p : plugins) {
+		const PluginImpl* const plugin = p.second;
+		client->put(plugin->uri(), plugin->properties());
+	}
+
+	client->bundle_end();
+}
+
+} // namespace server
+} // namespace ingen