1package Stream::Buffered::Auto;
2use strict;
3use warnings;
4use base 'Stream::Buffered';
5
6sub new {
7    my($class, undef, $max_memory_size) = @_;
8    bless {
9        _buffer => Stream::Buffered->create('PerlIO'),
10        _max => $max_memory_size,
11    }, $class;
12}
13
14sub print {
15    my $self = shift;
16    $self->{_buffer}->print(@_);
17
18    if ($self->{_max} && $self->{_buffer}->size > $self->{_max}) {
19        my $buf = $self->{_buffer}->{buffer};
20        $self->{_buffer} = Stream::Buffered->create('File'),
21        $self->{_buffer}->print($buf);
22        delete $self->{_max};
23    }
24}
25
26sub size {
27    my $self = shift;
28    $self->{_buffer}->size;
29}
30
31sub rewind {
32    my $self = shift;
33    $self->{_buffer}->rewind;
34}
35
361;
37