Try this
#!/usr/bin/perl --
use strict; use warnings;
use File::Temp ();
use DB_File;
Main( @ARGV );
exit( 0 );
sub Main {
my $temp = File::Temp->new()->filename;
HitAndQuit( $temp, $_ ) for 1,2,3,4;
HitAndQuit( $temp ) for 1 .. 1 + rand 12;
unlink $temp or die "unlink $temp: $!";
}
sub HitAndQuit {
my $file = shift;
my $recno = DB_File::RECNOINFO->new();
$recno->{flags} |= R_FIXEDLEN;
$recno->{reclen} = 100;
my $ofoo = tie my(@foo),
'DB_File',
$file,
O_RDWR|O_CREAT,
0600,
$recno
or die "Cannot tie ($file): $!";
@_ and push @foo, @_;
print "length ", $ofoo->length, " scalar ", scalar @foo, "\n";
undef $ofoo;
untie @foo;
return;
}
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