PAUSE(3) Library Functions Manual PAUSE(3)

pausestop until signal

Standard C Library (libc, -lc)

#include <unistd.h>

int
pause(void);

sigsuspend(2).

The () function causes the calling thread to pause until a signal is received from either the kill(2) function or an interval timer. (See setitimer(2).) Upon termination of a signal handler started during a pause(), the pause() call will return.

Always returns -1.

The pause() function always returns:

[]
The call was interrupted.

kill(2), select(2), sigsuspend(2)

A pause() syscall appeared in Version 6 AT&T UNIX.

June 4, 1993 macOS 15.2