95 lines
2.1 KiB
C++
95 lines
2.1 KiB
C++
/*
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Copyright (C) 1999 Paul Barton-Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id$
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*/
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#ifndef __fd_midiport_h__
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#define __fd_midiport_h__
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#include <vector>
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#include <string>
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#include <cerrno>
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#include <cerrno>
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#include <fcntl.h>
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#include <unistd.h>
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#include <midi++/port.h>
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#include <midi++/port_request.h>
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namespace MIDI {
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class FD_MidiPort : public Port
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{
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public:
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FD_MidiPort (PortRequest &req,
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const std::string &dirpath,
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const std::string &pattern);
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virtual ~FD_MidiPort () {
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::close (_fd);
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}
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virtual int selectable() const;
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static std::vector<std::string *> *list_devices ();
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protected:
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int _fd;
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virtual void open (PortRequest &req);
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virtual int write (byte *msg, size_t msglen) {
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int nwritten;
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if ((_mode & O_ACCMODE) == O_RDONLY) {
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return -EACCES;
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}
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if (slowdown) {
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return do_slow_write (msg, msglen);
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}
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if ((nwritten = ::write (_fd, msg, msglen)) > 0) {
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bytes_written += nwritten;
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if (output_parser) {
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output_parser->raw_preparse
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(*output_parser, msg, nwritten);
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for (int i = 0; i < nwritten; i++) {
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output_parser->scanner (msg[i]);
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}
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output_parser->raw_postparse
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(*output_parser, msg, nwritten);
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}
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}
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return nwritten;
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}
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virtual int read (byte *buf, size_t max);
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private:
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static std::string *midi_dirpath;
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static std::string *midi_filename_pattern;
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int do_slow_write (byte *msg, unsigned int msglen);
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};
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}; /*namespace MIDI */
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#endif // __fd_midiport_h__
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