Stream IZMachineIO.OpenAuxiliaryFile(string name, int size, bool writing)
{
frefid_t file = Glk.glk_fileref_create_by_name(
FileUsage.Data | FileUsage.BinaryMode, name, 0);
return(OpenStream(file, writing ? FileMode.Write : FileMode.Read));
}
Stream IZMachineIO.OpenRestoreFile()
{
frefid_t file = Glk.glk_fileref_create_by_prompt(
FileUsage.SavedGame | FileUsage.BinaryMode, FileMode.Read, 0);
return(OpenStream(file, FileMode.Read));
}
Stream IZMachineIO.OpenSaveFile(int size)
{
frefid_t file = Glk.glk_fileref_create_by_prompt(
FileUsage.SavedGame | FileUsage.BinaryMode, FileMode.Write, 0);
return(OpenStream(file, FileMode.Write));
}
Stream IZMachineIO.OpenCommandFile(bool writing)
{
FileMode mode = writing ? FileMode.Write : FileMode.Read;
frefid_t file = Glk.glk_fileref_create_by_prompt(
FileUsage.InputRecord | FileUsage.TextMode, mode, 0);
return(OpenStream(file, mode));
}
private Stream OpenStream(frefid_t fileref, FileMode mode)
{
if (fileref.IsNull)
{
return(null);
}
strid_t gstr = Glk.glk_stream_open_file(fileref, mode, 0);
if (gstr.IsNull)
{
return(null);
}
return(new GlkStream(gstr));
}
public static extern bool glk_fileref_does_file_exist(frefid_t fref);
public static extern void glk_fileref_delete_file(frefid_t fref);
public static extern uint glk_fileref_get_rock(frefid_t fref);
public static extern frefid_t glk_fileref_iterate(frefid_t fref, out uint rockptr);
public static extern void glk_fileref_destroy(frefid_t fref);
public static extern frefid_t glk_fileref_create_from_fileref(FileUsage usage, frefid_t fref,
uint rock);
public static extern strid_t glk_stream_open_file_uni(frefid_t fileref, FileMode fmode,
uint rock);