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package Signal::Pending; |
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$Signal::Pending::VERSION = '0.008'; |
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582
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use strict; |
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36
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use warnings FATAL => 'all'; |
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1
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42
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5
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6
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1
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use Config; |
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2
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1
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42
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7
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1
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1
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5
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use POSIX qw/sigpending/; |
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1
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8
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1
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76
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use IPC::Signal qw/sig_num sig_name/; |
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1
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1
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9
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use Carp qw/croak/; |
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1
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531
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my $sig_max = $Config{sig_count} - 1; |
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tie %Signal::Pending, __PACKAGE__; |
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15
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sub TIEHASH { |
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1
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my $class = shift; |
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1
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my $self = { iterator => 1, }; |
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1
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return bless $self, $class; |
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} |
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sub _get_status { |
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1
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1
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my ($self, $num) = @_; |
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1
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my $mask = POSIX::SigSet->new; |
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1
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sigpending($mask); |
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1
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return $mask->ismember($num); |
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} |
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sub FETCH { |
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1
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my ($self, $key) = @_; |
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1
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return $self->_get_status(sig_num($key)); |
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} |
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sub STORE { |
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my ($self, $key, $value) = @_; |
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croak 'Can\'t assign to %Signal::Pending'; |
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} |
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sub DELETE { |
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0
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0
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my ($self, $key) = @_; |
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0
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croak 'Can\'t delete from %Signal::Pending'; |
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} |
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43
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sub CLEAR { |
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0
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0
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my ($self) = @_; |
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0
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0
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croak 'Can\'t clear %Signal::Pending'; |
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} |
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48
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sub EXISTS { |
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0
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0
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my ($self, $key) = @_; |
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0
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return defined sig_num($key); |
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} |
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53
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sub FIRSTKEY { |
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0
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0
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my $self = shift; |
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0
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$self->{iterator} = 1; |
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0
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return $self->NEXTKEY; |
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} |
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59
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sub NEXTKEY { |
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0
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0
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my $self = shift; |
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0
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0
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if ($self->{iterator} <= $sig_max) { |
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0
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my $num = $self->{iterator}++; |
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0
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0
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return wantarray ? (sig_name($num) => $self->_get_status($num)) : sig_name($num); |
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} |
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else { |
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0
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0
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return; |
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} |
68
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} |
69
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70
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sub SCALAR { |
71
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3
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3
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1786
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my $self = shift; |
72
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3
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14
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my $mask = POSIX::SigSet->new; |
73
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3
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20
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sigpending($mask); |
74
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3
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15
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return scalar grep { $mask->ismember($_) } 1 .. $sig_max; |
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192
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355
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75
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} |
76
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77
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0
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0
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sub UNTIE { |
78
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} |
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80
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0
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0
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sub DESTROY { |
81
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} |
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83
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1; # End of Signal::Mask |
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85
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# ABSTRACT: Signal pending status made easy |
86
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87
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__END__ |