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Diffstat (limited to 'Master/tlpkg/TeXLive/waitVariableX.pm')
-rw-r--r-- | Master/tlpkg/TeXLive/waitVariableX.pm | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/Master/tlpkg/TeXLive/waitVariableX.pm b/Master/tlpkg/TeXLive/waitVariableX.pm deleted file mode 100644 index 80f76fdddee..00000000000 --- a/Master/tlpkg/TeXLive/waitVariableX.pm +++ /dev/null @@ -1,82 +0,0 @@ -$TeXLive::waitVariableX::VERSION = '1.0'; - -package TeXLive::waitVariableX; - -use Carp; -use Exporter; - -use base qw/Exporter/; -@EXPORT = qw/waitVariableX/; -use strict; - -sub waitVariableX { - - use Tie::Watch; - - my ($parent, $millis) = (shift, shift); # @_ has list of var refs - - croak "waitVariableX: no milliseconds." unless defined $millis; - my ($callback, $st, $tid, @watch, $why); - - if (ref $millis eq 'ARRAY') { - $callback = Tk::Callback->new($millis->[1]); - $millis = $millis->[0]; - } - - $st = sub {my $argv = $_[0]->Args('-store'); $why = $argv->[0]}; - foreach my $vref (@_) { - push @watch, - Tie::Watch->new(-variable => $vref, -store => [$st, $vref]); - } - $tid = $parent->after($millis => sub {$why = 0}) unless $millis == 0; - - $parent->waitVariable(\$why); # wait for timer or watchpoint(s) - - $_->Unwatch foreach @watch; - $parent->afterCancel($tid); - $callback->Call($why) if defined $callback; - - return $why; # why we stopped waiting: 0 or $vref - -} # end waitVariableX - -1; -__END__ - - -=head1 NAME - -TeXLive::waitVariableX - a waitVariable with extensions. - -=head1 SYNOPSIS - - use Tk::waitVariableX; - - $splash->waitVariableX( [$millis, $destroy_splashscreen], \$v1, \$v2} ); - -=head1 DESCRIPTION - -This subroutine waits for a list of variables, with a timeout - the -subroutine returns when one of the variables changes value or the timeout -expires, whichever occurs first. - -Although the millisecond parameter is required, it may be zero, which -effects no timeout. The milliscond paramter may also be an array of -two elements, the first the millisecond value, and the second a -normal Per/Tk callback. The callback is invoked just before -waitVariableX returns. - -Callback format is patterned after the Perl/Tk scheme: supply either a -code reference, or, supply an array reference and pass the callback -code reference in the first element of the array, followed by callback -arguments. - -=head1 COPYRIGHT - -Copyright (C) 2000 - 2002 Stephen O. Lidie. All rights reserved. - -This program is free software; you can redistribute it and/or modify it under -the same terms as Perl itself. - -This package is a literal copy of the original package only changing its name. -=cut |