if you're needing access to this data from with Mason, you can use Mason's built in data caching. First you create a component file to encapsulate the data you want to share across requests and processes (i.e. "_getSharedData").

# mason component _getSharedData
my $value = $m->cache->get("key");
return $value if(defined($value));

# compute $value here since it hasn't been stored yet
$value = $$;

$m->cache->set(key=>$value);
return $value
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Then you can call that component anytime you want to retrieve it.

my $value = $m->comp('/_getSharedData');
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Note that Mason's cache, by default, is stored on disk but you can use any Cache::Cache sub-class that you want (Cache::SharedMemoryCache would allow you to share the data across processes without writing it to disk).

$m->cache(cache_class => 'SharedMemoryCache')->set(key=>$value);
$value = $m->cache(cache_class => 'SharedMemoryCache')->get("key");
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Also, $m->cache->get("key") is scoped to the component you are calling it from (so don't expect to be able to access the same data from another component without calling _getSharedData

For more info on Mason caching, see the HTML::Mason::Devel docs.

HTH - Brian