41 lines
1.2 KiB
Rust
41 lines
1.2 KiB
Rust
use crate::net::packet_stream::packet_format::{read_varint, PacketFormat, Reader, Writer, MAX_PACKET_SIZE};
|
|
use async_trait::async_trait;
|
|
use std::boxed::Box;
|
|
use std::io;
|
|
|
|
pub struct DefaultPacketFormat;
|
|
|
|
#[async_trait]
|
|
impl PacketFormat for DefaultPacketFormat {
|
|
async fn recieve(&self, src: &mut Reader) -> io::Result<Box<[u8]>> {
|
|
use tokio::io::AsyncReadExt;
|
|
|
|
let (_, length) = read_varint(src).await?;
|
|
if length > MAX_PACKET_SIZE as i32 {
|
|
return Err(io::Error::new(io::ErrorKind::Other, "Packet was too long.".to_string()));
|
|
}
|
|
|
|
let mut buf = vec![0; length as usize];
|
|
src.read_exact(buf.as_mut_slice()).await?;
|
|
|
|
Ok(buf.into_boxed_slice())
|
|
}
|
|
|
|
async fn send(&self, dest: &mut Writer, data: &[u8]) -> io::Result<()> {
|
|
use crate::net::serialize::{PacketSerializer, VarInt};
|
|
|
|
let mut packet_length_buf = Vec::with_capacity(5);
|
|
packet_length_buf.write(VarInt(data.len() as i32));
|
|
|
|
{
|
|
use tokio::io::AsyncWriteExt;
|
|
|
|
dest.write(packet_length_buf.as_slice()).await?;
|
|
dest.write(data).await?;
|
|
dest.flush().await?;
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
}
|