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/*
Copyright (C) 1999 Paul Barton-Davis
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.
*/
#ifndef __fd_midiport_h__
#define __fd_midiport_h__
#include <vector>
#include <string>
#include <cerrno>
#include <cerrno>
#include <fcntl.h>
#include <unistd.h>
#include <midi++/port.h>
#include <midi++/port_request.h>
namespace MIDI {
class FD_MidiPort : public Port
{
public:
FD_MidiPort (PortRequest &req,
const std::string &dirpath,
const std::string &pattern);
virtual ~FD_MidiPort () {
::close (_fd);
}
virtual int selectable() const;
static std::vector<std::string *> *list_devices ();
protected:
int _fd;
virtual void open (PortRequest &req);
virtual int write (byte *msg, size_t msglen) {
int nwritten;
if ((_mode & O_ACCMODE) == O_RDONLY) {
return -EACCES;
}
if (slowdown) {
return do_slow_write (msg, msglen);
}
if ((nwritten = ::write (_fd, msg, msglen)) > 0) {
bytes_written += nwritten;
if (output_parser) {
output_parser->raw_preparse
(*output_parser, msg, nwritten);
for (int i = 0; i < nwritten; i++) {
output_parser->scanner (msg[i]);
}
output_parser->raw_postparse
(*output_parser, msg, nwritten);
}
}
return nwritten;
}
virtual int read (byte *buf, size_t max);
private:
static std::string *midi_dirpath;
static std::string *midi_filename_pattern;
int do_slow_write (byte *msg, unsigned int msglen);
};
} // namespace MIDI
#endif // __fd_midiport_h__
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