Hands-On Software Engineering with Golang

Terminating the application in a clean way

At this point, you are probably wondering: how does the application terminate? The answer is by receiving a signal from the operating system. The signal package in the Go standard library comes with a Notify function that allows an application to register for, and receive, notifications when the application receives a particular signal type. Common signal types include the following:

• SIGINT, which is normally sent to a foreground application when the user presses Ctrl + C.
• SIGHUP, which many applications (for example, HTTP servers) hook and use as a trigger to reload their configuration.
• SIGKILL, which is sent to an application before the operating system kills it. This particular signal cannot ...