US Patent 11861420 Concurrency control in an asynchronous event-loop based program environment

Concurrency control in an asynchronous event-loop based program environment is described. A program is implemented with an asynchronous event-loop. A piece of code controls events into the program by preventing events from being delivered to the program while a storage operation is executing except for storage completion events. Those events are prevented from being delivered to the program until the storage operation completes and the program is not executing code.