Struct UdpServer 

pub struct UdpServer { /* private fields */ }

The UdpServer struct in Rust contains a UDP socket and an Arc-wrapped notification mechanism.

Properties:

• socket: The socket property in the UdpServer struct represents a UDP socket that the server uses to send and receive data over the network.
• notify: The notify property in the UdpServer struct is of type Arc<Notify>. Arc stands for “atomic reference counting” and is a thread-safe reference-counting pointer. Notify is a synchronization primitive that allows threads to wait until a condition is satisfied.

Implementations

impl UdpServer

pub async fn bind(addr: &str) -> Result<Self, Box<dyn Error>>

The function bind creates a UDP server bound to a specified address and returns a result with the server instance or an error.

Arguments:

• addr: The addr parameter in the bind function is a reference to a string that represents the address to bind the UDP socket to. This address typically includes the IP address and port number on which the socket will listen for incoming connections.

Returns:

The bind function is returning a Result containing an instance of UdpServer if the binding operation is successful. The UdpServer struct contains a UdpSocket and an Arc<Notify> instance.

pub async fn run(self: Arc<Self>) -> Result<(), Box<dyn Error>>

The function run is an asynchronous method in Rust that continuously listens for incoming data on a UDP socket, processes the data, and echoes it back to the sender while also checking for a shutdown signal.

Arguments:

• ``: The code you provided is a Rust asynchronous function that runs a UDP server using Tokio. Here’s a breakdown of the key components:

Returns:

The run function returns a Result with an Ok(()) value if the UDP server is shut down successfully.

pub async fn shutdown(&self)

The shutdown function in Rust asynchronously notifies the server to shut down.