Kuidas tagada usaldusväärne andmete edastamine UDP protokolli kasutamisel?

UDP is a connectionless protocol without delivery guarantees, so to ensure reliable data delivery over UDP, additional mechanisms need to be implemented at the application level:

• Acknowledgments (ACK): the receiver sends a confirmation of packet receipt.
• Retransmission: if no acknowledgment is received within the timeout, the sender retransmits the packet.
• Packet numbering: to track order and detect lost packets.
• Buffering and assembly: to correctly assemble data from multiple packets.

In Go, this can be implemented manually, for example, by sending packets with sequence numbers and waiting for acknowledgments, or by using existing libraries that add reliability on top of UDP.

A simplified logic example:

// Pseudocode
for seq := 0; seq < totalPackets; seq++ {
    sendPacket(seq, data)
    waitForAck(seq)
    if timeout {
        resendPacket(seq, data)
    }
}