File: after_leak

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perl-tk 1:800.025-2
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#!/usr/local/bin/perl -w

use Tk;
use Devel::Leak;

$count = 0;

sub flash_widget 
{
 my($w, $option, $val1, $val2, $interval) = @_;
 $w->configure($option => $val1);
 $w->after($interval, [\&flash_widget, $w, $option, $val2, $val1, $interval] );
 $count++;
} # end flash_widget

$mw = MainWindow->new;
$b = $mw->Button(-text => 'Flash', -bg => 'azure');
$b->pack;
flash_widget $b, -background, 'azure', 'yellow', 1000;
$mw->update;
print STDERR "Before ",$start = Devel::Leak::NoteSV($hook),"\n";
$count = 0;
#MainLoop;
while ($count < 100)
 {
  Tk::DoOneEvent(0);
 }
print STDERR "After  ",$end = Devel::Leak::CheckSV($hook),"\n";

print "Average ",($end-$start)/$count,"\n";