SIGSETMASK(2) | System Calls Manual | SIGSETMASK(2) |
sigsetmask
— set
current signal mask
Standard C Library (libc, -lc)
#include
<signal.h>
int
sigsetmask
(int
mask);
sigmask
(signum);
Sigsetmask
()
sets the current signal mask. Signals are blocked from delivery if the
corresponding bit in mask is a 1; the macro
sigmask
()
is provided to construct the mask for a given
signum.
The system quietly disallows SIGKILL
or
SIGSTOP
to be blocked.
The previous set of masked signals is returned.
kill(2), sigaction(2), sigblock(2), sigprocmask(2), sigsuspend(2), sigvec(2), sigsetops(3)
The sigsetmask
() function call appeared in
4.2BSD and has been deprecated.
June 2, 1993 | macOS 14.6 |