SIGPAUSE(3) BSD Programmer's Manual SIGPAUSE(3)
sigpause - atomically release blocked signals and wait for interrupt
#include <signal.h> int sigpause(int sigmask);
This interface is made obsolete by sigsuspend(2). sigpause() assigns sigmask to the set of masked signals and then waits for a signal to arrive; on return the set of masked signals is restored. sigmask is usually 0 to indicate that no signals are to be blocked. sig- pause() always terminates by being interrupted, returning -1 with errno set to EINTR
kill(2), sigaction(2), sigprocmask(2), sigsuspend(2), sigblock(3), sigvec(3)
The sigpause() function call appeared in 4.2BSD and has been deprecated. MirOS BSD #10-current March 10, 1991 1
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