Simple UDP Server/Client implementation

The UDP Server is a simple echo server implementation that listens on a port and echoes back the packets it receives to the client that sent it.

This uses a packet bus system to ensure that packets are sent in the correct order alongside threading.

Limitations

• Each packet is limited to 128 bytes, you can configure this through the max_packet_size parameter in ProtocolBase. In an ideal world, you should be compressing the data before sending it.
• Packet deserialization doesn't strip out the packet id. This could be a good thing or a bad thing depending, but this means it's just more work on deserializing it.
• Packets are nulled out by 0 bytes. We just need to be cautious about this as if you end your byte array with 0s, it will strip it out. Work around is to end it with a NULL byte after your zeros to ensure it won't be erased.
• Unsafe in a production environment, there should be packet checks and encryption to ensure that the packets are secure.
• Checksums should be added to ensure that the packets are not corrupted.

Protocol

• Packets are sent in the following format:
  • Packet ID (1 byte)
  • Packet Data (127 bytes)

In total, 128 bytes are sent.

• Packet IDs are used to identify the type of packet.
• Packets cannot exceed 128 bytes or else they won't be sent. This is configurable through the max_packet_size parameter in ProtocolBase.

Install

You can run Application (client) and ApplicationServer (Server). Change the server port in Constants