SIGSETMASK(2-BSD)   RISC/os Reference Manual    SIGSETMASK(2-BSD)



NAME
     sigsetmask, sigmask - set current signal mask

SYNOPSIS
     #include <signal.h>

     sigsetmask(mask);
     int mask;

     mask = sigmask(signum)

DESCRIPTION
     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 pro-
     vided 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)






























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