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//! Networking primitives for TCP/UDP communication.
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//!
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//! For OS-specific networking primitives like Unix domain sockets, refer to the [`async_std::os`]
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//! module.
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//! This module provides networking functionality for the Transmission Control and User
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//! Datagram Protocols, as well as types for IP and socket addresses.
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//!
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//! This module is an async version of [`std::net`].
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//!
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//! # Organization
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//!
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//! * [`TcpListener`] and [`TcpStream`] provide functionality for communication over TCP
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//! * [`UdpSocket`] provides functionality for communication over UDP
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//! * [`IpAddr`] represents IP addresses of either IPv4 or IPv6; [`Ipv4Addr`] and
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//! [`Ipv6Addr`] are respectively IPv4 and IPv6 addresses
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//! * [`SocketAddr`] represents socket addresses of either IPv4 or IPv6; [`SocketAddrV4`]
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//! and [`SocketAddrV6`] are respectively IPv4 and IPv6 socket addresses
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//! * [`ToSocketAddrs`] is a trait that used for generic address resolution when interacting
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//! with networking objects like [`TcpListener`], [`TcpStream`] or [`UdpSocket`]
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//! * Other types are return or parameter types for various methods in this module
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//!
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//! [`IpAddr`]: enum.IpAddr.html
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//! [`Ipv4Addr`]: struct.Ipv4Addr.html
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//! [`Ipv6Addr`]: struct.Ipv6Addr.html
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//! [`SocketAddr`]: enum.SocketAddr.html
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//! [`SocketAddrV4`]: struct.SocketAddrV4.html
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//! [`SocketAddrV6`]: struct.SocketAddrV6.html
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//! [`TcpListener`]: struct.TcpListener.html
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//! [`TcpStream`]: struct.TcpStream.html
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//! [`ToSocketAddrs`]: trait.ToSocketAddrs.html
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//! [`UdpSocket`]: struct.UdpSocket.html
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//!
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//! # Platform-specific extensions
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//!
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//! APIs such as Unix domain sockets are available on certain platforms only. You can find
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//! platform-specific extensions in the [`async_std::os`] module.
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//!
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//! [`async_std::os`]: ../os/index.html
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//! [`std::net`]: https://doc.rust-lang.org/std/net/index.html
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//!
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//! ## Examples
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//! # Examples
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//!
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//! A simple UDP echo server:
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//!
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