1. A system comprising: a memory area associated with a computing device, said memory area storing instructions for managing a callback; and a processor programmed to: execute an emulated thread; detect a request for a first asynchronous callback operation, the first asynchronous callback operation associated with a first asynchronous callback thread; determine a first execution mode associated with the first asynchronous callback operation; and based on the first execution mode, adjust the execution of the emulated thread and execute the first asynchronous callback thread associated with the first asynchronous callback operation.