medium10 pts · first answer countskotlin-coroutinesthreading

Blocking file read in a coroutine

A suspend function reads a large file with blocking java.io calls. It is called from viewModelScope.launch, which uses the Main dispatcher. What is the correct approach?

A.Nothing; suspend functions never block a threadB.Wrap the blocking read in withContext(Dispatchers.IO) so it runs off the main threadC.Launch it with Dispatchers.UnconfinedD.Wrap the read in runBlocking inside the function, which turns the blocking call into a suspending one that frees the main thread

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Blocking file read in a coroutine

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