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/*
Copyright (C) 2006 Paul Davis
Written by Dave Robillard
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id: jack.h 4 2005-05-13 20:47:18Z taybin $
*/
#ifndef __jack_midiport_h__
#define __jack_midiport_h__
#include <vector>
#include <string>
#include <fcntl.h>
#include <unistd.h>
#include <glibmm/thread.h>
#include <jack/weakjack.h>
#include <jack/jack.h>
#include <jack/midiport.h>
#include "pbd/ringbuffer.h"
#include "pbd/signals.h"
#include "pbd/crossthread.h"
#include "evoral/EventRingBuffer.hpp"
#include "midi++/port.h"
#include "midi++/event.h"
namespace MIDI
{
class JACK_MidiPort : public Port
{
public:
JACK_MidiPort (const XMLNode& node, jack_client_t* jack_client);
virtual ~JACK_MidiPort ();
int write(byte *msg, size_t msglen, timestamp_t timestamp);
int read(byte *buf, size_t max);
int selectable() const { return xthread.selectable(); }
bool must_drain_selectable() const { return true; }
void cycle_start(nframes_t nframes);
void cycle_end();
static std::string typestring;
XMLNode& get_state () const;
void set_state (const XMLNode&);
static void set_process_thread (pthread_t);
static pthread_t get_process_thread () { return _process_thread; }
static bool is_process_thread();
nframes_t nframes_this_cycle() const { return _nframes_this_cycle; }
static PBD::Signal0<void> MakeConnections;
static PBD::Signal0<void> JackHalted;
protected:
std::string get_typestring () const {
return typestring;
}
private:
int create_ports(const XMLNode&);
jack_client_t* _jack_client;
jack_port_t* _jack_input_port;
jack_port_t* _jack_output_port;
nframes_t _last_read_index;
timestamp_t _last_write_timestamp;
CrossThreadChannel xthread;
std::string _inbound_connections;
std::string _outbound_connections;
PBD::ScopedConnection connect_connection;
PBD::ScopedConnection halt_connection;
void flush (void* jack_port_buffer);
void jack_halted ();
void make_connections();
static pthread_t _process_thread;
RingBuffer< Evoral::Event<double> > output_fifo;
Evoral::EventRingBuffer<timestamp_t> input_fifo;
Glib::Mutex output_fifo_lock;
};
} /* namespace MIDI */
#endif // __jack_midiport_h__
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