KCP-Bindings

This repository is just a wrapper around the KCP library to make it easier to use in other rust projects.

All credits go to the original authors of the KCP library: https://github.com/skywind3000/kcp

HexFellow Integration

When the hexfellow feature is enabled, this library will use the tokio crate to handle the UDP socket.

HexSocket

Made of header and data.

Header in little endian, 4 Bytes

• Byte[0]:

  • Higher 4 Bits reserved. Always 0b1000.
  • Lower 4 Bits is opcode just like websocket.
    • 0x0: Continuation frame(Not used for now, all frames are single frame now)
    • 0x1: Text frame
    • 0x2: Binary frame
    • 0x8: Connection close(Not used for now)
    • 0x9: Ping
    • 0xA: Pong

• Byte[1]: Reserved. Always 0b0000_0000.

• Byte[2] and Byte[3]: Length of the data in u16.

TODO

1. Remove the anyhow dependency and use custom error types.
2. Use stream API.