Commit | Line | Data |
---|---|---|
6fe26b29 | 1 | package DBM::Deep::Hash; |
2 | ||
460b1067 | 3 | use 5.6.0; |
4 | ||
6fe26b29 | 5 | use strict; |
460b1067 | 6 | use warnings; |
6fe26b29 | 7 | |
c3aafc14 | 8 | our $VERSION = q(0.99_03); |
86867f3a | 9 | |
6fe26b29 | 10 | use base 'DBM::Deep'; |
11 | ||
596e9574 | 12 | sub _get_self { |
a4e2db58 | 13 | eval { local $SIG{'__DIE__'}; tied( %{$_[0]} ) } || $_[0] |
596e9574 | 14 | } |
15 | ||
12b96196 | 16 | #XXX Need to add a check here for @_ % 2 |
f9c33187 | 17 | sub _repr { shift;return { @_ } } |
18 | ||
19 | sub _import { | |
20 | my $self = shift; | |
21 | my ($struct) = @_; | |
22 | ||
23 | eval { | |
24 | local $SIG{'__DIE__'}; | |
25 | foreach my $key (keys %$struct) { | |
26 | $self->put($key, $struct->{$key}); | |
27 | } | |
28 | }; if ($@) { | |
29 | $self->_throw_error("Cannot import: type mismatch"); | |
30 | } | |
31 | ||
32 | return 1; | |
33 | } | |
34 | ||
6fe26b29 | 35 | sub TIEHASH { |
36 | ## | |
37 | # Tied hash constructor method, called by Perl's tie() function. | |
38 | ## | |
39 | my $class = shift; | |
0ca7ea98 | 40 | my $args = $class->_get_args( @_ ); |
6fe26b29 | 41 | |
42 | $args->{type} = $class->TYPE_HASH; | |
43 | ||
44 | return $class->_init($args); | |
45 | } | |
46 | ||
cb79ec85 | 47 | sub FETCH { |
48 | my $self = shift->_get_self; | |
460b1067 | 49 | my $key = ($self->_fileobj->{filter_store_key}) |
50 | ? $self->_fileobj->{filter_store_key}->($_[0]) | |
cb79ec85 | 51 | : $_[0]; |
52 | ||
359a01ac | 53 | return $self->SUPER::FETCH( $key, $_[0] ); |
cb79ec85 | 54 | } |
55 | ||
81d3d316 | 56 | sub STORE { |
57 | my $self = shift->_get_self; | |
460b1067 | 58 | my $key = ($self->_fileobj->{filter_store_key}) |
59 | ? $self->_fileobj->{filter_store_key}->($_[0]) | |
81d3d316 | 60 | : $_[0]; |
61 | my $value = $_[1]; | |
62 | ||
359a01ac | 63 | return $self->SUPER::STORE( $key, $value, $_[0] ); |
81d3d316 | 64 | } |
65 | ||
baa27ab6 | 66 | sub EXISTS { |
67 | my $self = shift->_get_self; | |
460b1067 | 68 | my $key = ($self->_fileobj->{filter_store_key}) |
69 | ? $self->_fileobj->{filter_store_key}->($_[0]) | |
baa27ab6 | 70 | : $_[0]; |
71 | ||
72 | return $self->SUPER::EXISTS( $key ); | |
73 | } | |
74 | ||
feaf1e6f | 75 | sub DELETE { |
76 | my $self = shift->_get_self; | |
460b1067 | 77 | my $key = ($self->_fileobj->{filter_store_key}) |
78 | ? $self->_fileobj->{filter_store_key}->($_[0]) | |
feaf1e6f | 79 | : $_[0]; |
80 | ||
359a01ac | 81 | return $self->SUPER::DELETE( $key, $_[0] ); |
feaf1e6f | 82 | } |
83 | ||
6fe26b29 | 84 | sub FIRSTKEY { |
85 | ## | |
86 | # Locate and return first key (in no particular order) | |
87 | ## | |
eea0d863 | 88 | my $self = shift->_get_self; |
6fe26b29 | 89 | |
90 | ## | |
6fe26b29 | 91 | # Request shared lock for reading |
92 | ## | |
93 | $self->lock( $self->LOCK_SH ); | |
94 | ||
72e315ac | 95 | my $result = $self->_engine->get_next_key($self); |
6fe26b29 | 96 | |
97 | $self->unlock(); | |
98 | ||
460b1067 | 99 | return ($result && $self->_fileobj->{filter_fetch_key}) |
100 | ? $self->_fileobj->{filter_fetch_key}->($result) | |
6fe26b29 | 101 | : $result; |
102 | } | |
103 | ||
104 | sub NEXTKEY { | |
105 | ## | |
106 | # Return next key (in no particular order), given previous one | |
107 | ## | |
eea0d863 | 108 | my $self = shift->_get_self; |
6fe26b29 | 109 | |
460b1067 | 110 | my $prev_key = ($self->_fileobj->{filter_store_key}) |
111 | ? $self->_fileobj->{filter_store_key}->($_[0]) | |
eea0d863 | 112 | : $_[0]; |
6fe26b29 | 113 | |
c3aafc14 | 114 | my $prev_md5 = $self->_engine->apply_digest($prev_key); |
6fe26b29 | 115 | |
116 | ## | |
6fe26b29 | 117 | # Request shared lock for reading |
118 | ## | |
119 | $self->lock( $self->LOCK_SH ); | |
120 | ||
72e315ac | 121 | my $result = $self->_engine->get_next_key( $self, $prev_md5 ); |
6fe26b29 | 122 | |
123 | $self->unlock(); | |
124 | ||
460b1067 | 125 | return ($result && $self->_fileobj->{filter_fetch_key}) |
126 | ? $self->_fileobj->{filter_fetch_key}->($result) | |
6fe26b29 | 127 | : $result; |
128 | } | |
129 | ||
130 | ## | |
131 | # Public method aliases | |
132 | ## | |
f9c33187 | 133 | sub first_key { (shift)->FIRSTKEY(@_) } |
134 | sub next_key { (shift)->NEXTKEY(@_) } | |
135 | ||
136 | sub _copy_node { | |
898fd1fd | 137 | my $self = shift; |
f9c33187 | 138 | my ($db_temp) = @_; |
139 | ||
140 | my $key = $self->first_key(); | |
141 | while ($key) { | |
142 | my $value = $self->get($key); | |
143 | $self->_copy_value( \$db_temp->{$key}, $value ); | |
144 | $key = $self->next_key($key); | |
145 | } | |
146 | ||
147 | return 1; | |
148 | } | |
6fe26b29 | 149 | |
150 | 1; | |
151 | __END__ |