Module tokio_util::io

This is supported on crate feature io only.

Helpers for IO related tasks.

The stream types are often used in combination with hyper or reqwest, as they allow converting between a hyper Body and AsyncRead.

The SyncIoBridge type converts from the world of async I/O to synchronous I/O; this may often come up when using synchronous APIs inside tokio::task::spawn_blocking.

Structs

ReaderStream

Convert an AsyncRead into a Stream of byte chunks.

StreamReader

Convert a Stream of byte chunks into an AsyncRead.

SyncIoBridge

Use a tokio::io::AsyncRead synchronously as a std::io::Read or a tokio::io::AsyncWrite as a std::io::Write.

Functions

poll_read_buf

Try to read data from an AsyncRead into an implementer of the BufMut trait.

poll_write_buf

Try to write data from an implementer of the Buf trait to an AsyncWrite, advancing the buffer’s internal cursor.

read_buf

Read data from an AsyncRead into an implementer of the BufMut trait.