Separate EventWriter interface from EventQueue.

git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@4319 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 102 insertions, 0 deletions

diff --git a/src/server/EventWriter.hpp b/src/server/EventWriter.hpp
new file mode 100644
index 00000000..771d22f5
--- /dev/null
+++ b/src/server/EventWriter.hpp
@@ -0,0 +1,102 @@
+/*
+  This file is part of Ingen.
+  Copyright 2007-2012 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_EVENTWRITER_HPP
+#define INGEN_ENGINE_EVENTWRITER_HPP
+
+#include <inttypes.h>
+#include <memory>
+#include <string>
+
+#include "ingen/Interface.hpp"
+#include "ingen/Resource.hpp"
+#include "raul/SharedPtr.hpp"
+
+#include "types.hpp"
+
+namespace Ingen {
+namespace Server {
+
+class Engine;
+class EventSink;
+
+/** An Interface that creates and writes Events to an EventSink.
+ *
+ * This is where Interface calls get turned into Events which are actually
+ * processed by the engine to do things.
+ */
+class EventWriter : public Interface
+{
+public:
+	explicit EventWriter(Engine& engine, EventSink& sink);
+	virtual ~EventWriter();
+
+	Raul::URI uri() const { return "http://drobilla.net/ns/ingen#internal"; }
+
+	void set_response_interface(Interface* iface) { _request_client = iface; }
+
+	virtual void set_response_id(int32_t id);
+
+	virtual void bundle_begin();
+
+	virtual void bundle_end();
+
+	virtual void put(const Raul::URI&            path,
+	                 const Resource::Properties& properties,
+	                 const Resource::Graph       g=Resource::DEFAULT);
+
+	virtual void delta(const Raul::URI&            path,
+	                   const Resource::Properties& remove,
+	                   const Resource::Properties& add);
+
+	virtual void move(const Raul::Path& old_path,
+	                  const Raul::Path& new_path);
+
+	virtual void connect(const Raul::Path& tail,
+	                     const Raul::Path& head);
+
+	virtual void disconnect(const Raul::Path& tail,
+	                        const Raul::Path& head);
+
+	virtual void set_property(const Raul::URI& subject_path,
+	                          const Raul::URI&  predicate,
+	                          const Raul::Atom& value);
+
+	virtual void del(const Raul::URI& uri);
+
+	virtual void disconnect_all(const Raul::Path& parent_patch_path,
+	                            const Raul::Path& path);
+
+	virtual void get(const Raul::URI& uri);
+
+	virtual void response(int32_t id, Status status) {}  ///< N/A
+	virtual void error(const std::string& msg) {}  ///< N/A
+
+protected:
+	Interface* _request_client;
+	EventSink& _sink;
+	int32_t    _request_id;
+	Engine&    _engine;
+	bool       _in_bundle;  ///< True iff a bundle is currently being received
+
+private:
+	SampleCount now() const;
+};
+
+} // namespace Server
+} // namespace Ingen
+
+#endif // INGEN_ENGINE_QUEUEDENGINEINTERFACE_HPP