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#!/usr/local/bin/perl-journals
# cmmtest: test of mmapped cache
# $Id: cmmtest,v 1.5 2003/12/23 11:46:31 pmh Exp $
use Cache::Mmap;
use Data::Dumper;
use strict;
# These will be read from the file if it already exists
my %options=(
buckets => 11,
bucketsize => 200,
strings => 1,
);
my %escape=(
"\n" => '\n',
"\r" => '\r',
"\t" => '\t',
"\\" => '\\\\',
);
my $filename='.cache';
$filename=shift if @ARGV;
my $cache=Cache::Mmap->new($filename,\%options)
or die;
print "Strings: ",$cache->strings,"\n";
# Read user commands from STDIN
$|=1;
print "cmmtest: ";
while(<>){
my($cmd,$key,$value)=/^([<>0?\-k])(?:\s+(\S+)(?:\s+(.*))?)?\s+$/
or do{ warn "Invalid command\n"; next; };
if($cmd eq '<'){
# Read
if($value ne ''){
warn "Unexpected stuff after key\n";
next;
}
my($found,$val)=$cache->read($key);
if(!$found){
print "No such value\n";
}elsif(defined $val){
if($cache->{strings}){
$val=~s/([^\40-\176\\])/$escape{$1} || sprintf '\\x{%02x}',ord $1/ge;
}else{
$val=Dumper($val);
}
print "=> $val\n";
}else{
print "Undefined value\n";
}
}elsif($cmd eq '>'){
# Write
if($cache->write($key,$cache->strings ? $value : \$value)){
print "OK\n";
}else{
warn "Can't write value\n";
}
}elsif($cmd eq '-'){
# delete
my($found,$val)=$cache->delete($key);
if(!$found){
print "No such value\n";
}elsif(defined $val){
$val=Dumper($val) unless $cache->strings;
print "= ok[$val]\n";
}else{
warn "Undefined value\n";
}
}elsif($cmd eq '0'){
# clear
$cache->quick_clear();
print "OK\n";
}elsif($cmd eq 'k'){
print map " $_\n",$cache->entries;
print "OK\n";
}elsif($cmd eq '?'){
# exists
my($found,$val)=$cache->read($key);
if($found){
print "= yes\n";
}else{
print "= no\n";
}
}else{
warn "Unknown command: $cmd\n";
}
}continue{
print "cmmtest: ";
}
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