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root |
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package Net::FCP::Event::Tk; |
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use Tk (); |
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my $mw; |
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sub new_from_fh { |
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my ($class, $fh) = @_; |
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bless { fh => $fh }, $class; |
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} |
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sub cb { |
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my ($self, $cb) = @_; |
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$self->{cb} = $cb; |
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$self; |
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} |
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sub poll { |
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my ($self, $r, $w, $e) = @_; |
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# we ignore $e, it's impossible |
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my $cb = \$self->{cb}; # avoid $self-reference |
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Tk::Event::IO::fileevent undef, $self->{fh}, readable => ""; # a mess! |
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Tk::Event::IO::fileevent undef, $self->{fh}, writable => ""; # even more so! |
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Tk::Event::IO::fileevent undef, $self->{fh}, readable => sub { $$cb->() } if $r; |
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Tk::Event::IO::fileevent undef, $self->{fh}, writable => sub { $$cb->() } if $w; |
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$self; |
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} |
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sub DESTROY { |
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my ($self) = @_; |
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if ($self->{fh}) { |
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Tk::Event::IO::fileevent undef, $self->{fh}, readable => ""; |
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Tk::Event::IO::fileevent undef, $self->{fh}, writable => ""; |
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} |
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undef $mw; |
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} |
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############# |
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sub new_signal { |
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my $class = shift; |
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bless \my $x, $class; |
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} |
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sub send { |
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${$_[0]}++; |
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} |
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sub wait { |
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unless ($mw) { |
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$mw = new MainWindow; |
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$mw->withdraw; |
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} |
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Tk::DoOneEvent (0) while !${$_[0]}; |
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} |
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1; |
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