A/UX® Programmer's Reference

sigsetmask(2) sigsetmask(2)
NAME
sigsetmask - set current signal mask
SYNOPSIS
#include
int sigsetmask (mask) ;
int mask;
sigmask (signum)
int signum;
DESCRIYITON
sigsetmask sets the current signal mask (those signals that are
blocked from delivery). Signals are blocked 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, SIGSTOP, or SIGCONT
to be blocked.
RETURN VALUE
The previous set of masked signals is returned.
SEE ALSO
kill(2), sigvec(2), sigblock(2), sigpause(2), signal(3).
February, 1990
Revision C
1