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



NAME
     sigpause - atomically release blocked signals and wait for
          interrupt

SYNOPSIS
     sigpause(sigmask)
     int sigmask;

DESCRIPTION
     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 indi-
     cate that no signals are now to be blocked.  sigpause always
     terminates by being interrupted, returning -1 with errno set
     to EINTR.

     In normal usage, a signal is blocked using sigblock(2), to
     begin a critical section, variables modified on the
     occurrence of the signal are examined to determine that
     there is no work to be done, and the process pauses awaiting
     work by using sigpause with the mask returned by sigblock.

SEE ALSO
     sigblock(2), sigvec(2)































                        Printed 11/19/92                   Page 1