/** Returns the EventHandler attached to a specific fd.
* If the fd isnt in the socketengine, returns NULL.
* @param fd The event handler to look for
* @return A pointer to the event handler, or NULL
*/
/** Returns the EventHandler attached to a specific fd.
* If the fd isnt in the socketengine, returns NULL.
* @param fd The event handler to look for
* @return A pointer to the event handler, or NULL
*/