ExploreCoroutines_Worker_2.kt

internal inner class Worker private constructor() : Thread() {
    ...
    private fun executeTask(task: Task) {
        val taskMode = task.mode
        idleReset(taskMode)
        beforeTask(taskMode)
        runSafely(task)
        afterTask(taskMode)
    }
    
    ...
    
    fun runSafely(task: Task) {
        try {
            task.run()
        } 
        ...
    }
}

internal abstract class Task(
    @JvmField var submissionTime: Long,
    @JvmField var taskContext: TaskContext
) : Runnable {
    constructor() : this(0, NonBlockingContext)
    inline val mode: Int get() = taskContext.taskMode // TASK_XXX
}