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 sigsetmask(2)						       sigsetmask(2)
			       TO BE OBSOLETED



 NAME
      sigsetmask - set current signal mask

 SYNOPSIS
      #include <&lt&lt&lt;signal.h>&gt&gt&gt;

      long sigsetmask(long mask);

 DESCRIPTION
      sigsetmask() sets the current signal mask (those signals that are
      blocked from delivery).  Signal i is blocked if the i-th bit in mask,
      as specified with the macro sigmask(i), is a 1.

      It is not possible to mask signals that cannot be ignored, as
      documented in signal(5); this restriction is silently imposed by the
      system.

      sigblock() can be used to add elements to the set of blocked signals.

 RETURN VALUE
      The previous set of masked signals is returned.

 EXAMPLES
      The following call to sigsetmask() causes only the SIGUSR1 and SIGUSR2
      signals to be blocked:

	   long oldmask;

	   oldmask = sigsetmask (sigmask (SIGUSR1) | sigmask (SIGUSR2));

 WARNINGS
      Do not use sigsetmask() in conjunction with the facilities described
      under sigset(3C).

    Obsolescent Interfaces
      sigsetmask() is to be obsoleted at a future date.

 APPLICATION USAGE
    Threads Considerations
      Since each thread maintains its own blocked signal mask, sigsetmask()
      modifies only the calling thread's blocked signal mask.

      For more information regarding signals and threads, refer to
      signal(5).

    LWP (Lightweight Processes) Considerations
      sigsetmask() modifies only the calling LWP's blocked signal mask.

    LP64 Programs
      sigsetmask() accepts and returns long (64 bit) values.  However, as
      for ILP32 programs, sigsetmask() supports signals numbered 1 through



 Hewlett-Packard Company	    - 1 -   HP-UX Release 11i: November 2000






 sigsetmask(2)						       sigsetmask(2)
			       TO BE OBSOLETED



      32.  The upper 32 bits of the mask argument are ignored.	Also, the
      upper 32 bits of the returned mask have no meaning.

 AUTHOR
      sigsetmask() was developed by the University of California, Berkeley.

 SEE ALSO
      kill(2), sigblock(2), sigpause(3C), sigprocmask(2), sigvector(2).














































 Hewlett-Packard Company	    - 2 -   HP-UX Release 11i: November 2000