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use BerkeleyDB; |
use BerkeleyDB; |
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our $port; |
our $debug = 0; |
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our $port = '?'; |
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sub clean { |
sub clean { |
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foreach ( glob '/dev/shm/sack.*' ) { |
foreach ( glob '/dev/shm/sack.*' ) { |
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warn "[$port] clean $_ ", -s $_, " bytes\n"; |
warn "[$port] clean $_ ", -s $_, " bytes\n"; |
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unlink $_ || warn "[$port] ERROR can't remove $_:$!"; |
unlink $_ || warn "[$port] ERROR can't remove $_:$!"; |
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} |
} |
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1; |
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} |
} |
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our $seq = 0; |
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our ( $btree, $array ); |
our ( $btree, $array ); |
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our ( %btree, @array ); |
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our $self; |
our $self; |
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sub open { |
sub open { |
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( $self, $port ) = @_; |
( $self, $port ) = @_; |
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clean; |
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my $path = "/dev/shm/sack.$port"; |
my $path = "/dev/shm/sack.$port"; |
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$btree = BerkeleyDB::Btree->new( |
$btree ||= tie %btree, 'BerkeleyDB::Btree', |
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-Filename => "$path.btree", |
-Filename => "$path.btree", |
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# -Cachesize => 700_000_000, |
# -Cachesize => 700_000_000, |
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-Flags => DB_CREATE, |
-Flags => DB_CREATE |
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) || die "$path.btree $!"; |
|| die "$path.btree $!"; |
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|
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$array = BerkeleyDB::Recno->new( |
$array ||= tie @array, 'BerkeleyDB::Recno', |
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-Filename => "$path.array", |
-Filename => "$path.array", |
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# -Cachesize => 700_000_000, |
# -Cachesize => 700_000_000, |
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-Flags => DB_CREATE, |
-Flags => DB_CREATE, |
40 |
) || die "$path.array $!"; |
|| die "$path.array $!"; |
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warn "[$port] BDB open $path\n"; |
warn "[$port] BDB open $path\n"; |
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} |
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sub close { |
47 |
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my $error = 0; |
48 |
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$error += $btree->db_close; |
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undef $btree; |
50 |
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$error += $array->db_close; |
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undef $array; |
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not $error; |
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} |
} |
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sub digest { |
our $seq = 0; |
56 |
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57 |
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sub to_int { |
58 |
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my ( $self, $full ) = @_; |
59 |
my $nr; |
my $nr; |
60 |
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$btree->db_get( $_[0] => $nr ) == 0 && return $nr; |
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61 |
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$btree->db_put( $_[0] => ++$seq ) == 0 || die "$_[0] [$seq] $!"; |
if ( my $nr = $btree{ $full } ) { |
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$array->db_put( $seq => $_[0] ) == 0 || die "[$seq] $_[0] $!"; |
return $nr; |
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return $seq; |
} else { |
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$seq++; |
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$btree{ $full } = $seq; |
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$array[ $seq ] = $full; |
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return $seq; |
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} |
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} |
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72 |
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73 |
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sub from_int { |
74 |
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my ( $self, $d ) = @_; |
75 |
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my $v = $array[ $d ]; |
76 |
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defined $v ? $v : $d; |
77 |
} |
} |
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79 |
1; |
1; |