Anonym webform submission

Hi, I created a module for the authenticated users can send a form anonymously. Add a checkbox in the configuration of the webform for select if form is anonymous and submissions stored without user or ip. so for my module can use the limit of submissions that  provided webform...

Need that your module had a hook for check the limit of shipments ("hook_webform_submission_limit_check "), as my module would check if that user can send the form to another table.

I think this could work fine, I hope your opinion, greetings.
<code>

<?php

/ / If exist a "webform_submission_limit_check" that limit the submissions in Other use this module.
/ / if none limit use default function.

$ restriction = array ();
foreach (module_implements ('webform_submission_limit_check') as $ module) {
       $ function = $ module. '_webform_submission_limit_check';
       $ restriction [] = $ function ($ node);
     }
    
if (in_array ('true', $ restriction))
return true;

?>

</code>