=encoding utf8
=head1 NAME
POSIX::SigSet - collect signal flags
=head1 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( $sigset->ismember(SIGUSR1) ) { ... }
=head1 DESCRIPTION
The C<POSIX::SigSet> object is simple a collection of signal flags. The
object is administered in POSIX.xs. See L<POSIX::SigAction|POSIX::SigAction> for
examples of its usage.
=head1 METHODS
=head2 Constructors
=over 4
=item POSIX::SigSet-E<gt>B<new>( [$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.
=back
=head2 Other
=over 4
=item $obj-E<gt>B<addset>($signal)
Add one signal to a SigSet object. Returns C<undef> on failure.
=item $obj-E<gt>B<delset>($signal)
Remove one signal from the SigSet object.
Returns C<undef> on failure.
=item $obj-E<gt>B<emptyset>()
Initialize the SigSet object to be empty. Returns C<undef> on failure.
=item $obj-E<gt>B<fillset>()
Initialize the SigSet object to include all signals. Returns C<undef>
on failure.
=item $obj-E<gt>B<ismember>()
Tests the SigSet object to see if it contains a specific signal.
example:
if($sigset->ismember(SIGUSR1)) {
print "contains SIGUSR1\n";
}
=back
=head1 SEE ALSO
This module is part of POSIX-1003 distribution version 1.02,
built on November 10, 2020. Website: F<http://perl.overmeer.net/CPAN>. The code is based on L<POSIX>, which
is released with Perl itself. See also L<POSIX::Util> for
additional functionality.
=head1 COPYRIGHTS
Copyrights 2011-2020 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 F<http://dev.perl.org/licenses/>