January 2019
Intermediate to advanced
520 pages
14h 32m
English
Content preview from Hands-On Microservices with Rust
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The tokio crate
The tokio crate provides the functionality to work with the network connections of files in an asynchronous manner. It includes wrappers for the TCP and UDP sockets—TcpStream and UdpSocket. It also includes types to access a filesystem through the Future and Stream traits. There is no cross-platform approach to work with files asynchronously, because operating systems have their own implementations of non-blocking APIs. Some operating systems, however, don't have good asynchronous APIs at all. To provide cross-platform asynchronous access to filesystems, tokio uses the tokio_threadpool crate, which has a blocking method that runs a task in a separate thread. This helps to implement asynchronous interaction for types that can ...
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