import "@ffi/c"
import "@std/io"

hide write func(_ ?*mut anyopaque, _ io.WriteStream, bytes []u8) usize ! io.WriteError {
	request usize = bytes.len
	maximum usize :: usize(maxval!(c_long))
	if request > maximum {
		request = maximum
	}
	while true {
		count c_long :: c.write(2, bytes.ptr, c_ulong(request))
		if count >= 0 {
			return usize(count)
		}
		if c.__error()^ != 4 {
			return .write_failed
		}
	}
}

hide read func(_ ?*mut anyopaque, _ io.ReadStream, _ []mut u8) usize ! io.ReadError {
	return .read_failed
}

hide vtable io.IoVTable :: io.IoVTable {
	read = read,
	write = write,
}

print func($format []u8, $Args type, args Args) void {
	writer io.Writer :: io.Writer {
		impl = io.Io {context = none, vtable = &vtable},
		stream = .stderr,
	}
	io.print(writer, format, Args, args) catch |_| {}
}