pause - wait for signal
() causes the calling process (or thread) to sleep until a signal is
delivered that either terminates the process or causes the invocation of a
() returns only when a signal was caught and the signal-catching
function returned. In this case, pause
() returns -1, and errno
is set to EINTR
- a signal was caught and the signal-catching function returned.
POSIX.1-2001, POSIX.1-2008, SVr4, 4.3BSD.