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pub struct TcpStream { /* private fields */ }
Expand description

A TCP stream between a local and a remote socket.

A TcpStream can either be created by connecting to an endpoint, via the connect method, or by accepting a connection from a listener. It can be read or written to using the AsyncRead, AsyncWrite, and related extension traits in futures::io.

The connection will be closed when the value is dropped. The reading and writing portions of the connection can also be shut down individually with the shutdown method.

This type is an async version of std::net::TcpStream.

Examples

use async_std::net::TcpStream;
use async_std::prelude::*;

let mut stream = TcpStream::connect("127.0.0.1:8080").await?;
stream.write_all(b"hello world").await?;

let mut buf = vec![0u8; 1024];
let n = stream.read(&mut buf).await?;

Implementations

Creates a new TCP stream connected to the specified address.

This method will create a new TCP socket and attempt to connect it to the addr provided. The returned future will be resolved once the stream has successfully connected, or it will return an error if one occurs.

Examples
use async_std::net::TcpStream;

let stream = TcpStream::connect("127.0.0.1:0").await?;

Returns the local address that this stream is connected to.

Examples
use async_std::net::TcpStream;

let stream = TcpStream::connect("127.0.0.1:8080").await?;
let addr = stream.local_addr()?;

Returns the remote address that this stream is connected to.

Examples
use async_std::net::TcpStream;

let stream = TcpStream::connect("127.0.0.1:8080").await?;
let peer = stream.peer_addr()?;

Gets the value of the IP_TTL option for this socket.

For more information about this option, see set_ttl.

Examples
use async_std::net::TcpStream;

let stream = TcpStream::connect("127.0.0.1:8080").await?;

stream.set_ttl(100)?;
assert_eq!(stream.ttl()?, 100);

Sets the value for the IP_TTL option on this socket.

This value sets the time-to-live field that is used in every packet sent from this socket.

Examples
use async_std::net::TcpStream;

let stream = TcpStream::connect("127.0.0.1:8080").await?;

stream.set_ttl(100)?;
assert_eq!(stream.ttl()?, 100);

Receives data on the socket from the remote address to which it is connected, without removing that data from the queue.

On success, returns the number of bytes peeked.

Successive calls return the same data. This is accomplished by passing MSG_PEEK as a flag to the underlying recv system call.

Examples
use async_std::net::TcpStream;

let stream = TcpStream::connect("127.0.0.1:8000").await?;

let mut buf = vec![0; 1024];
let n = stream.peek(&mut buf).await?;

Gets the value of the TCP_NODELAY option on this socket.

For more information about this option, see set_nodelay.

Examples
use async_std::net::TcpStream;

let stream = TcpStream::connect("127.0.0.1:8080").await?;

stream.set_nodelay(true)?;
assert_eq!(stream.nodelay()?, true);

Sets the value of the TCP_NODELAY option on this socket.

If set, this option disables the Nagle algorithm. This means that segments are always sent as soon as possible, even if there is only a small amount of data. When not set, data is buffered until there is a sufficient amount to send out, thereby avoiding the frequent sending of small packets.

Examples
use async_std::net::TcpStream;

let stream = TcpStream::connect("127.0.0.1:8080").await?;

stream.set_nodelay(true)?;
assert_eq!(stream.nodelay()?, true);

Shuts down the read, write, or both halves of this connection.

This method will cause all pending and future I/O on the specified portions to return immediately with an appropriate value (see the documentation of Shutdown).

Examples
use std::net::Shutdown;

use async_std::net::TcpStream;

let stream = TcpStream::connect("127.0.0.1:8080").await?;
stream.shutdown(Shutdown::Both)?;

Trait Implementations

Extracts the raw file descriptor. Read more

Attempt to read from the AsyncRead into buf. Read more

Attempt to read from the AsyncRead into bufs using vectored IO operations. Read more

Attempt to read from the AsyncRead into buf. Read more

Attempt to read from the AsyncRead into bufs using vectored IO operations. Read more

Attempt to write bytes from buf into the object. Read more

Attempt to write bytes from bufs into the object using vectored IO operations. Read more

Attempt to flush the object, ensuring that any buffered data reach their destination. Read more

Attempt to close the object. Read more

Attempt to write bytes from buf into the object. Read more

Attempt to write bytes from bufs into the object using vectored IO operations. Read more

Attempt to flush the object, ensuring that any buffered data reach their destination. Read more

Attempt to close the object. Read more

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Converts a std::net::TcpStream into its asynchronous equivalent.

Constructs a new instance of Self from the given raw file descriptor. Read more

Consumes this object, returning the raw underlying file descriptor. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Reads some bytes from the byte stream. Read more

Like read(), except it reads into a slice of buffers. Read more

Reads the entire contents and appends them to a Vec. Read more

Reads the entire contents and appends them to a String. Read more

Reads the exact number of bytes required to fill buf. Read more

Creates an adapter which will read at most limit bytes from it. Read more

Converts this AsyncRead into a Stream of bytes. Read more

Creates an adapter which will chain this stream with another. Read more

Boxes the reader and changes its type to dyn AsyncRead + Send + 'a. Read more

Writes some bytes into the byte stream. Read more

Like write(), except that it writes a slice of buffers. Read more

Writes an entire buffer into the byte stream. Read more

Flushes the stream to ensure that all buffered contents reach their destination. Read more

Closes the writer. Read more

Boxes the writer and changes its type to dyn AsyncWrite + Send + 'a. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.