lily/midi-stream.cc

   1 /*
   2   midi-stream.cc -- implement Midi_stream
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997--2009 Jan Nieuwenhuizen <janneke@gnu.org>
   7 */
   8
   9 #include "midi-stream.hh"
  10
  11 #include <cerrno>
  12 using namespace std;
  13
  14 #include "international.hh"
  15 #include "main.hh"
  16 #include "midi-chunk.hh"
  17 #include "misc.hh"
  18 #include "program-option.hh"
  19 #include "stream.hh"
  20 #include "string-convert.hh"
  21 #include "warn.hh"
  22
  23 Midi_stream::Midi_stream (string file_name)
  24 {
  25   file_name_string_ = file_name;
  26   out_file_ = fopen (file_name.c_str (), "wb");
  27   if (!out_file_)
  28     error (_f ("cannot open for write: %s: %s", file_name, strerror (errno)));
  29 }
  30
  31 Midi_stream::~Midi_stream ()
  32 {
  33   fclose (out_file_);
  34 }
  35
  36 void
  37 Midi_stream::write (string str)
  38 {
  39   size_t sz = sizeof (Byte);
  40   size_t n = str.length ();
  41   size_t written = fwrite (str.data (), sz, n, out_file_);
  42
  43   if (written != sz * n)
  44     warning (_f ("cannot write to file: `%s'", str.data ()));
  45 }
  46
  47 void
  48 Midi_stream::write (Midi_chunk const &midi)
  49 {
  50   string str = midi.to_string ();
  51
  52   return write (str);
  53 }
  54