Mechanism and Performance of Dispatchers

Continuation interceptor

Dispatching works based on the mechanism of continuation interception, built into the Kotlin language. There is a coroutine context named ContinuationInterceptor whose interceptContinuation method is used to modify a continuation when a coroutine is suspended. Thanks to the caching mechanism, wrapping needs to happen only once per continuation. It also has a releaseInterceptedContinuation method called when a continuation ends.