Reactive, Asynchronous, and Concurrent Programming

TL;DRAbstract

So far in this book you've seen functions and objects that process their inputs immediately using a single "thread" of execution where the code runs to completion and produces useful results or state changes. In this chapter, you'll turn your attention to concurrent, parallel, asynchronous, and reactive programs. These each represent substantially different approaches to programming from those you've seen so far. Some of the reasons for turning to these techniques are as follows: To achieve better responsiveness in a graphical user interface (GUI) To report progress results during a long-running computation and to support cancellation of these computations To achieve greater throughput in a reactive application or service To achieve faster processing rates on a multiprocessor machine or cluster To take advantage of the I/O parallelism available in modern disk drives or network connections To sustain processing while network and disk I/O operations are in process In this chapter, we cov

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