use bufio;
use io;
use trace;

export fn write_frame(out: io::handle, in: []u8) (void | io::error) = {
	assert(len(in) <= 0x1fffff, "write_frame: too long");
	let length_buf: [3]u8 = [0...];
	let length_buf = length_buf[..0];
	encode_varint(&length_buf, len(in): i32);
	io::writeall(out, length_buf)?;
	io::writeall(out, in)?;
};

export fn write_packet(out: io::handle, packet_id: i32, payload: []u8)
		(void | io::error) = {
	static let packet_buf: [0x1fffff]u8 = [0...];

	let packet = packet_buf[..0];
	encode_packet(&packet, packet_id, payload);

	write_frame(out, packet)?;
};