Handling UNIX Signals
Explore how to handle UNIX signals in Go by leveraging its concurrency model with goroutines and channels. This lesson guides you through signal notification, processing different signals, and managing your application's response, helping you build robust system tools that interact smoothly with UNIX.
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UNIX signals offer a very handy way of interacting asynchronously with our applications. However, UNIX signal handling requires the use of Go channels that are used exclusively for this task. So, it would be good to talk a little about the concurrency model of Go, which requires the use of goroutines and channels for signal handling.
Goroutine and channel
A goroutine is the smallest executable Go entity. In order to create a new goroutine, we have to use the go keyword followed by a predefined function or an anonymous function—the methods are equivalent. A channel in Go is a mechanism that, among other things, allows goroutines to communicate and exchange data. If you are an amateur programmer or are hearing about goroutines and channels for the first time, do not panic. Goroutines and channels are ...