// Read(u32 fd) -> (i32 ret, u32 bsd_errno, buffer<i8, 0x22, 0> message)
public ResultCode Read(ServiceCtx context)
{
int fd = context.RequestData.ReadInt32();
(ulong receivePosition, ulong receiveLength) = context.Request.GetBufferType0x22();
WritableRegion receiveRegion = context.Memory.GetWritableRegion(receivePosition, (int)receiveLength);
LinuxError errno = LinuxError.EBADF;
IFileDescriptor file = _context.RetrieveFileDescriptor(fd);
int result = -1;
if (file != null)
{
errno = file.Read(out result, receiveRegion.Memory.Span);
if (errno == LinuxError.SUCCESS)
{
SetResultErrno(file, result);
receiveRegion.Dispose();
}
}
return(WriteBsdResult(context, result, errno));
}
