NAME

POSIX::SigSet - collect signal flags

SYNOPSIS

  use POSIX::SigSet ();
  use POSIX::1003::Signals;

  $sigset = POSIX::SigSet->new;
  $sigset = POSIX::SigSet->new(SIGUSR1);
  $sigset->addset(SIGUSR2);
  $sigset->delset(SIGUSR2);
  $sigset->emptyset();
  $sigset->fillset();
  if( $sigset->ismember(SIGUSR1) ) { ... }

DESCRIPTION

The POSIX::SigSet object is simple a collection of signal flags. The object is administered in POSIX.xs. See POSIX::SigAction for examples of its usage.

METHODS

Constructors

POSIX::SigSet->new( [$signals] )

Create a new SigSet object. One or more $signals can be added immediately. The object will be destroyed automatically when it is no longer needed.

Other

$obj->addset($signal)

Add one signal to a SigSet object. Returns undef on failure.

$obj->delset($signal)

Remove one signal from the SigSet object. Returns undef on failure.

$obj->emptyset()

Initialize the SigSet object to be empty. Returns undef on failure.

$obj->fillset()

Initialize the SigSet object to include all signals. Returns undef on failure.

$obj->ismember()

Tests the SigSet object to see if it contains a specific signal.

example:

  if($sigset->ismember(SIGUSR1)) {
      print "contains SIGUSR1\n";
  }

SEE ALSO

This module is part of POSIX-1003 distribution version 0.99_07, built on April 08, 2015. Website: http://perl.overmeer.net. The code is based on POSIX, which is released with Perl itself. See also POSIX::Util for additional functionality.

COPYRIGHTS

Copyrights 2011-2015 on the perl code and the related documentation by [Mark Overmeer]. For other contributors see ChangeLog.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See http://www.perl.com/perl/misc/Artistic.html