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|
package util ;
package main ;
use strict ;
use BerkeleyDB ;
use File::Path qw(rmtree);
use vars qw(%DB_errors $FA) ;
$| = 1;
%DB_errors = (
'DB_INCOMPLETE' => "DB_INCOMPLETE: Sync was unable to complete",
'DB_KEYEMPTY' => "DB_KEYEMPTY: Non-existent key/data pair",
'DB_KEYEXIST' => "DB_KEYEXIST: Key/data pair already exists",
'DB_LOCK_DEADLOCK' => "DB_LOCK_DEADLOCK: Locker killed to resolve a deadlock",
'DB_LOCK_NOTGRANTED' => "DB_LOCK_NOTGRANTED: Lock not granted",
'DB_NOTFOUND' => "DB_NOTFOUND: No matching key/data pair found",
'DB_OLD_VERSION' => "DB_OLDVERSION: Database requires a version upgrade",
'DB_RUNRECOVERY' => "DB_RUNRECOVERY: Fatal error, run database recovery",
) ;
# full tied array support started in Perl 5.004_57
# just double check.
$FA = 0 ;
{
sub try::TIEARRAY { bless [], "try" }
sub try::FETCHSIZE { $FA = 1 }
my @a ;
tie @a, 'try' ;
my $a = @a ;
}
{
package LexFile ;
use vars qw( $basename @files ) ;
$basename = "db0000" ;
sub new
{
my $self = shift ;
#my @files = () ;
foreach (@_)
{
$_ = $basename ;
unlink $basename ;
push @files, $basename ;
++ $basename ;
}
bless [ @files ], $self ;
}
sub DESTROY
{
my $self = shift ;
#unlink @{ $self } ;
}
END
{
foreach (@files) { unlink $_ }
}
}
{
package LexDir ;
use File::Path qw(rmtree);
use vars qw( $basename %dirs ) ;
sub new
{
my $self = shift ;
my $dir = shift ;
rmtree $dir if -e $dir ;
mkdir $dir, 0777 or return undef ;
return bless [ $dir ], $self ;
}
sub DESTROY
{
my $self = shift ;
my $dir = $self->[0];
#rmtree $dir;
$dirs{$dir} ++ ;
}
END
{
foreach (keys %dirs) {
rmtree $_ if -d $_ ;
}
}
}
{
package Redirect ;
use Symbol ;
sub new
{
my $class = shift ;
my $filename = shift ;
my $fh = gensym ;
open ($fh, ">$filename") || die "Cannot open $filename: $!" ;
my $real_stdout = select($fh) ;
return bless [$fh, $real_stdout ] ;
}
sub DESTROY
{
my $self = shift ;
close $self->[0] ;
select($self->[1]) ;
}
}
sub docat
{
my $file = shift;
local $/ = undef;
open(CAT,$file) || die "Cannot open $file:$!";
my $result = <CAT>;
close(CAT);
return $result;
}
sub docat_del
{
my $file = shift;
local $/ = undef;
open(CAT,$file) || die "Cannot open $file: $!";
my $result = <CAT> || "" ;
close(CAT);
unlink $file ;
return $result;
}
sub writeFile
{
my $name = shift ;
open(FH, ">$name") or return 0 ;
print FH @_ ;
close FH ;
return 1 ;
}
sub touch
{
my $file = shift ;
open(CAT,">$file") || die "Cannot open $file:$!";
close(CAT);
}
sub joiner
{
my $db = shift ;
my $sep = shift ;
my ($k, $v) = (0, "") ;
my @data = () ;
my $cursor = $db->db_cursor() or return () ;
for ( my $status = $cursor->c_get($k, $v, DB_FIRST) ;
$status == 0 ;
$status = $cursor->c_get($k, $v, DB_NEXT)) {
push @data, $v ;
}
(scalar(@data), join($sep, @data)) ;
}
sub countRecords
{
my $db = shift ;
my ($k, $v) = (0,0) ;
my ($count) = 0 ;
my ($cursor) = $db->db_cursor() ;
#for ($status = $cursor->c_get($k, $v, DB_FIRST) ;
# $status == 0 ;
# $status = $cursor->c_get($k, $v, DB_NEXT) )
while ($cursor->c_get($k, $v, DB_NEXT) == 0)
{ ++ $count }
return $count ;
}
sub addData
{
my $db = shift ;
my @data = @_ ;
die "addData odd data\n" if @data % 2 != 0 ;
my ($k, $v) ;
my $ret = 0 ;
while (@data) {
$k = shift @data ;
$v = shift @data ;
$ret += $db->db_put($k, $v) ;
}
return ($ret == 0) ;
}
sub ok
{
my $no = shift ;
my $result = shift ;
print "not " unless $result ;
print "ok $no\n" ;
}
1;
|
