| has gloss | eng: Structure * Resources: Any resource that can provide input or output to the system. * Synchronous Event Demultiplexer: Uses an event loop to block on all resources. When it is possible to start a synchronous operation on a resource without blocking, the demultiplexer sends the resource to the dispatcher. * Dispatcher: Handles registering and unregistering of request handlers. Dispatches resources from the demultiplexer to the associated request handler. * Request Handler: An application defined request handler and its associated resource. |