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diff --git a/src/server/Driver.hpp b/src/server/Driver.hpp
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-/*
- This file is part of Ingen.
- Copyright 2007-2017 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_DRIVER_HPP
-#define INGEN_ENGINE_DRIVER_HPP
-
-#include "raul/Noncopyable.hpp"
-
-#include "DuplexPort.hpp"
-#include "EnginePort.hpp"
-
-namespace Raul { class Path; }
-
-namespace Ingen {
-namespace Server {
-
-class DuplexPort;
-class EnginePort;
-
-/** Engine driver base class.
- *
- * A Driver is responsible for managing system ports, and possibly running the
- * audio graph.
- *
- * \ingroup engine
- */
-class Driver : public Raul::Noncopyable {
-public:
- virtual ~Driver() = default;
-
- /** Activate driver (begin processing graph and events). */
- virtual bool activate() { return true; }
-
- /** Deactivate driver (stop processing graph and events). */
- virtual void deactivate() {}
-
- /** Create a port ready to be inserted with add_input (non realtime).
- * May return NULL if the Driver can not create the port for some reason.
- */
- virtual EnginePort* create_port(DuplexPort* graph_port) = 0;
-
- /** Find a system port by path. */
- virtual EnginePort* get_port(const Raul::Path& path) = 0;
-
- /** Add a system visible port (e.g. a port on the root graph). */
- virtual void add_port(RunContext& context, EnginePort* port) = 0;
-
- /** Remove a system visible port.
- *
- * This removes the port from the driver in the process thread but does not
- * destroy the port. To actually remove the system port, unregister_port()
- * must be called later in another thread.
- */
- virtual void remove_port(RunContext& context, EnginePort* port) = 0;
-
- /** Return true iff driver supports dynamic adding/removing of ports. */
- virtual bool dynamic_ports() const { return false; }
-
- /** Register a system visible port. */
- virtual void register_port(EnginePort& port) = 0;
-
- /** Register a system visible port. */
- virtual void unregister_port(EnginePort& port) = 0;
-
- /** Rename a system visible port. */
- virtual void rename_port(const Raul::Path& old_path,
- const Raul::Path& new_path) = 0;
-
- /** Apply a system visible port property. */
- virtual void port_property(const Raul::Path& path,
- const URI& uri,
- const Atom& value) = 0;
-
- /** Return the audio buffer size in frames */
- virtual SampleCount block_length() const = 0;
-
- /** Return the event buffer size in bytes */
- virtual size_t seq_size() const = 0;
-
- /** Return the sample rate in Hz */
- virtual SampleRate sample_rate() const = 0;
-
- /** Return the current frame time (running counter) */
- virtual SampleCount frame_time() const = 0;
-
- /** Append time events for this cycle to `buffer`. */
- virtual void append_time_events(RunContext& context,
- Buffer& buffer) = 0;
-
- /** Return the real-time priority of the audio thread, or -1. */
- virtual int real_time_priority() = 0;
-};
-
-} // namespace Server
-} // namespace Ingen
-
-#endif // INGEN_ENGINE_DRIVER_HPP