| 1 |
sashby |
1.2 |
package Cache::CacheUtilities;
|
| 2 |
|
|
require 5.004;
|
| 3 |
muzaffar |
1.9.2.2.2.1 |
use Storable qw(nfreeze thaw retrieve nstore);
|
| 4 |
|
|
BEGIN {
|
| 5 |
|
|
eval "use Compress::Zlib qw(gzopen);";
|
| 6 |
|
|
}
|
| 7 |
sashby |
1.5 |
|
| 8 |
sashby |
1.2 |
sub read()
|
| 9 |
|
|
{
|
| 10 |
muzaffar |
1.9.2.2.2.1 |
my $file = shift;
|
| 11 |
|
|
my $cache=undef;
|
| 12 |
|
|
my $gz = gzopen($file, "rb");
|
| 13 |
|
|
if ($gz)
|
| 14 |
|
|
{
|
| 15 |
|
|
my $buf;my $data;
|
| 16 |
|
|
while ($gz->gzread($buf,1024*1024) > 0){$data.=$buf;}
|
| 17 |
|
|
$gz->gzclose();
|
| 18 |
|
|
$cache=eval {thaw($data);};
|
| 19 |
|
|
if ($EVAL_ERROR){die "Cache loading error: ",$EVAL_ERROR,"\n";}
|
| 20 |
|
|
}
|
| 21 |
|
|
else{die "Can not open file for reading: $file";}
|
| 22 |
sashby |
1.2 |
return $cache;
|
| 23 |
|
|
}
|
| 24 |
muzaffar |
1.9.2.2.2.1 |
|
| 25 |
sashby |
1.2 |
sub write()
|
| 26 |
|
|
{
|
| 27 |
muzaffar |
1.9.2.2.2.1 |
my ($cache,$file) = @_;
|
| 28 |
sashby |
1.2 |
use File::Copy;
|
| 29 |
muzaffar |
1.9.2.2.2.1 |
if (-r $file){move($file,"${file}.bak");}
|
| 30 |
|
|
my $ok=1;
|
| 31 |
|
|
my $gz = gzopen($file, "wb");
|
| 32 |
|
|
if ($gz)
|
| 33 |
|
|
{
|
| 34 |
|
|
eval {$gz->gzwrite(nfreeze($cache));};
|
| 35 |
|
|
if ($EVAL_ERROR){$ok=0;}
|
| 36 |
|
|
$gz->gzclose();
|
| 37 |
|
|
}
|
| 38 |
|
|
else{$ok=0;}
|
| 39 |
|
|
if ($ok)
|
| 40 |
|
|
{
|
| 41 |
|
|
unlink ("${file}.bak");
|
| 42 |
|
|
my $mode=0644;
|
| 43 |
|
|
chmod $mode,$file;
|
| 44 |
|
|
}
|
| 45 |
|
|
else
|
| 46 |
|
|
{
|
| 47 |
|
|
if (-r "${file}.bak"){move("${file}.bak",$file);}
|
| 48 |
|
|
die "ERROR: Writing Cache file: $file";
|
| 49 |
|
|
}
|
| 50 |
sashby |
1.2 |
return;
|
| 51 |
|
|
}
|
| 52 |
|
|
|
| 53 |
|
|
1;
|
