EventLoop is an internal function to capture and handle OS signals (eg SIGTERM).

PromptEOF defines the string to write when ctrl+d is pressed.

PromptSIGINT defines the string to write when ctrl+c is pressed.

PromptSIGQUIT defines the string to write when ctrl+\ is pressed.

PromptSIGTSTP defines the string to write when ctrl+z is pressed.