use crate::{Address, Authenticate, Connect, Dissociate, Header, Heartbeat, Packet, VERSION};
use bytes::{BufMut, BytesMut};
use futures_util::{AsyncWrite, AsyncWriteExt};
use std::{
io::{Error as IoError, Write},
net::SocketAddr,
};
impl Header {
#[cfg(feature = "async_marshal")]
pub async fn async_marshal(&self, s: &mut (impl AsyncWrite + Unpin)) -> Result<(), IoError> {
let mut buf = BytesMut::with_capacity(self.len());
self.write(&mut buf);
s.write_all(&buf).await
}
#[cfg(feature = "marshal")]
pub fn marshal(&self, s: &mut impl Write) -> Result<(), IoError> {
let mut buf = BytesMut::with_capacity(self.len());
self.write(&mut buf);
s.write_all(&buf)
}
pub fn write(&self, buf: &mut impl BufMut) {
buf.put_u8(VERSION);
buf.put_u8(self.type_code());
match self {
Self::Authenticate(auth) => auth.write(buf),
Self::Connect(conn) => conn.write(buf),
Self::Packet(packet) => packet.write(buf),
Self::Dissociate(dissociate) => dissociate.write(buf),
Self::Heartbeat(heartbeat) => heartbeat.write(buf),
}
}
}
impl Address {
fn write(&self, buf: &mut impl BufMut) {
buf.put_u8(self.type_code());
match self {
Self::None => {}
Self::DomainAddress(domain, port) => {
buf.put_u8(domain.len() as u8);
buf.put_slice(domain.as_bytes());
buf.put_u16(*port);
}
Self::SocketAddress(SocketAddr::V4(addr)) => {
buf.put_slice(&addr.ip().octets());
buf.put_u16(addr.port());
}
Self::SocketAddress(SocketAddr::V6(addr)) => {
for seg in addr.ip().segments() {
buf.put_u16(seg);
}
buf.put_u16(addr.port());
}
}
}
}
impl Authenticate {
fn write(&self, buf: &mut impl BufMut) {
buf.put_slice(self.uuid().as_ref());
buf.put_slice(&self.token());
}
}
impl Connect {
fn write(&self, buf: &mut impl BufMut) {
self.addr().write(buf);
}
}
impl Packet {
fn write(&self, buf: &mut impl BufMut) {
buf.put_u16(self.assoc_id());
buf.put_u16(self.pkt_id());
buf.put_u8(self.frag_total());
buf.put_u8(self.frag_id());
buf.put_u16(self.size());
self.addr().write(buf);
}
}
impl Dissociate {
fn write(&self, buf: &mut impl BufMut) {
buf.put_u16(self.assoc_id());
}
}
impl Heartbeat {
fn write(&self, _buf: &mut impl BufMut) {}
}