Available on macro
@:value(cast 0)@:impl@:enuminlineread onlyDEFAULT:RunMode = 0
Runs the event loop until there are no more active and referenced handles or requests.
@:value(cast 2)@:impl@:enuminlineread onlyNOWAIT:RunMode = 2
Poll for i/o once but don't block if there are no pending callbacks.
@:value(cast 1)@:impl@:enuminlineread onlyONCE:RunMode = 1
Poll for i/o once. Note that this mode blocks if there are no pending callbacks.