[kotlin] semaphore & coroutine

val semaphore = Semaphore(5)

coroutineScope {
    list.map {

        async {
            semaphore.acquire()
            
            // logic(it)
            
            semaphore.release()
        }
    }.awaitAll()
}

https://stackoverflow.com/questions/55877419/how-to-launch-10-coroutines-in-for-loop-and-wait-until-all-of-them-finish/75569716#75569716

how to launch 10 coroutines in for loop and wait until all of them finish?

https://stackoverflow.com/questions/58428584/limiting-the-maximum-number-of-coroutines-that-can-run-in-a-scope/75569724#75569724

Limiting the maximum number of coroutines that can run in a scope

https://origogi.github.io/coroutine/%EC%BD%94%EB%A3%A8%ED%8B%B4-%EC%8A%A4%EC%BD%94%ED%94%84/

[Coroutine] 코루틴 스코프

https://devroach.tistory.com/139

CoroutineScope 과 Runblocking 의 차이