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//! Networking primitives for TCP/UDP communication.

//!

//! This module provides networking functionality for the Transmission Control and User

//! Datagram Protocols, as well as types for IP and socket addresses.

//!

//! This module is an async version of [`std::net`].

//!

//! # Organization

//!

//! * [`TcpListener`] and [`TcpStream`] provide functionality for communication over TCP

//! * [`UdpSocket`] provides functionality for communication over UDP

//! * [`IpAddr`] represents IP addresses of either IPv4 or IPv6; [`Ipv4Addr`] and

//!   [`Ipv6Addr`] are respectively IPv4 and IPv6 addresses

//! * [`SocketAddr`] represents socket addresses of either IPv4 or IPv6; [`SocketAddrV4`]

//!   and [`SocketAddrV6`] are respectively IPv4 and IPv6 socket addresses

//! * [`ToSocketAddrs`] is a trait that used for generic address resolution when interacting

//!   with networking objects like [`TcpListener`], [`TcpStream`] or [`UdpSocket`]

//! * Other types are return or parameter types for various methods in this module

//!

//! [`IpAddr`]: enum.IpAddr.html

//! [`Ipv4Addr`]: struct.Ipv4Addr.html

//! [`Ipv6Addr`]: struct.Ipv6Addr.html

//! [`SocketAddr`]: enum.SocketAddr.html

//! [`SocketAddrV4`]: struct.SocketAddrV4.html

//! [`SocketAddrV6`]: struct.SocketAddrV6.html

//! [`TcpListener`]: struct.TcpListener.html

//! [`TcpStream`]: struct.TcpStream.html

//! [`ToSocketAddrs`]: trait.ToSocketAddrs.html

//! [`UdpSocket`]: struct.UdpSocket.html

//!

//! # Platform-specific extensions

//!

//! APIs such as Unix domain sockets are available on certain platforms only. You can find

//! platform-specific extensions in the [`async_std::os`] module.

//!

//! [`async_std::os`]: ../os/index.html

//! [`std::net`]: https://doc.rust-lang.org/std/net/index.html

//!

//! # Examples

//!

//! A simple UDP echo server:

//!

//! ```no_run

//! # fn main() -> std::io::Result<()> { async_std::task::block_on(async {

//! #

//! use async_std::net::UdpSocket;

//!

//! let socket = UdpSocket::bind("127.0.0.1:8080").await?;

//! let mut buf = vec![0u8; 1024];

//!

//! loop {

//!     let (n, peer) = socket.recv_from(&mut buf).await?;

//!     socket.send_to(&buf[..n], &peer).await?;

//! }

//! #

//! # }) }

//! ```


pub use std::net::AddrParseError;
pub use std::net::Shutdown;
pub use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
pub use std::net::{SocketAddr, SocketAddrV4, SocketAddrV6};

#[cfg(not(target_os = "unknown"))]
pub use addr::ToSocketAddrs;
#[cfg(not(target_os = "unknown"))]
pub use tcp::{Incoming, TcpListener, TcpStream};
#[cfg(not(target_os = "unknown"))]
pub use udp::UdpSocket;

#[cfg(not(target_os = "unknown"))]
mod addr;
#[cfg(not(target_os = "unknown"))]
mod tcp;
#[cfg(not(target_os = "unknown"))]
mod udp;