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diff --git a/src/server/Broadcaster.hpp b/src/server/Broadcaster.hpp
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-/*
- This file is part of Ingen.
- Copyright 2007-2016 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/>.
-*/
-
-#ifndef INGEN_ENGINE_BROADCASTER_HPP
-#define INGEN_ENGINE_BROADCASTER_HPP
-
-#include <atomic>
-#include <list>
-#include <mutex>
-#include <set>
-#include <string>
-
-#include "ingen/Interface.hpp"
-#include "ingen/types.hpp"
-
-#include "BlockFactory.hpp"
-
-namespace Ingen {
-namespace Server {
-
-/** Broadcaster for all clients.
- *
- * This is an Interface that forwards all messages to all registered
- * clients (for updating all clients on state changes in the engine).
- *
- * \ingroup engine
- */
-class Broadcaster : public Interface
-{
-public:
- Broadcaster();
- ~Broadcaster();
-
- void register_client(SPtr<Interface> client);
- bool unregister_client(SPtr<Interface> client);
-
- void set_broadcast(SPtr<Interface> client, bool broadcast);
-
- /** Ignore a client when broadcasting.
- *
- * This is used to prevent feeding back updates to the client that
- * initiated a property set in the first place.
- */
- void set_ignore_client(SPtr<Interface> client) { _ignore_client = client; }
- void clear_ignore_client() { _ignore_client.reset(); }
-
- /** 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.
- * This makes doing the right thing in recursive functions that send
- * updates simple (e.g. Event::post_process()).
- */
- class Transfer : public Raul::Noncopyable {
- public:
- explicit Transfer(Broadcaster& b) : broadcaster(b) {
- if (++broadcaster._bundle_depth == 1) {
- broadcaster.bundle_begin();
- }
- }
- ~Transfer() {
- if (--broadcaster._bundle_depth == 0) {
- broadcaster.bundle_end();
- }
- }
- Broadcaster& broadcaster;
- };
-
- void send_plugins(const BlockFactory::Plugins& plugins);
- void send_plugins_to(Interface*, const BlockFactory::Plugins& plugins);
-
- void message(const Message& msg) override {
- std::lock_guard<std::mutex> lock(_clients_mutex);
- for (const auto& c : _clients) {
- if (c != _ignore_client) {
- c->message(msg);
- }
- }
- }
-
- URI uri() const override { return URI("ingen:/broadcaster"); }
-
-private:
- friend class Transfer;
-
- typedef std::set<SPtr<Interface>> Clients;
-
- std::mutex _clients_mutex;
- Clients _clients;
- std::set< SPtr<Interface> > _broadcastees;
- std::atomic<bool> _must_broadcast;
- unsigned _bundle_depth;
- SPtr<Interface> _ignore_client;
-};
-
-} // namespace Server
-} // namespace Ingen
-
-#endif // INGEN_ENGINE_BROADCASTER_HPP