Opens a child process that allows two-way communication
between your program and the child. Returns the process ID of the
child process or reports a fatal error on failure. Exports one
function.
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month, and much more.