Commit | Line | Data |
f0276afb |
1 | package DBM::Deep::Engine::Sector; |
2 | |
3 | use 5.006_000; |
4 | |
5 | use strict; |
6 | use warnings FATAL => 'all'; |
7 | |
8 | sub new { |
9 | my $self = bless $_[1], $_[0]; |
10 | Scalar::Util::weaken( $self->{engine} ); |
11 | $self->_init; |
12 | return $self; |
13 | } |
14 | |
15 | #sub _init {} |
16 | #sub clone { DBM::Deep->_throw_error( "Must be implemented in the child class" ); } |
17 | |
18 | sub engine { $_[0]{engine} } |
19 | sub offset { $_[0]{offset} } |
20 | sub type { $_[0]{type} } |
21 | |
22 | sub base_size { |
23 | my $self = shift; |
24 | return $self->engine->SIG_SIZE + $STALE_SIZE; |
25 | } |
26 | |
27 | sub free { |
28 | my $self = shift; |
29 | |
30 | my $e = $self->engine; |
31 | |
32 | $e->storage->print_at( $self->offset, $e->SIG_FREE ); |
33 | # Skip staleness counter |
34 | $e->storage->print_at( $self->offset + $self->base_size, |
35 | chr(0) x ($self->size - $self->base_size), |
36 | ); |
37 | |
38 | my $free_meth = $self->free_meth; |
39 | $e->$free_meth( $self->offset, $self->size ); |
40 | |
41 | return; |
42 | } |
43 | |
44 | 1; |
45 | __END__ |