sharing array of hash

Hi,

I have a question on sharing a array of hash between threads. Has anyone
have any inputs on this. ? 

I know that there is threads::shared module which can share an array, scalar
or hash. But, when I try to use this module for sharing the array of hash,
it doesn't give error, but doesn't share values of hash elements between
threads. 

Any inputs on this is really appreciated.

Thanks!
PJ