Async Programming

0 9 フィッシュ H3TM4N

学び始める

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質問		答え
Kotlin Coroutines 学び始める		asynchronous or non-blocking programming
Coroutines 学び始める		are computer program components that generalize subroutines for non-preemptive multitasking, by allowing execution to be suspended and resumed. It is conceptually similar to a thread, in the sense that it takes a block of code to run that works concurrently with the rest of the code. However, a coroutine is not bound to any particular thread. It may suspend its execution in one thread and resume.
Coroutines as light-weight threads 学び始める		Coroutines can be thought of as light-weight threads, but there is a number of important differences that make their real-life usage very different from threads.
launch 学び始める		is a coroutine builder. It launches a new coroutine concurrently with the rest of the code, which continues to work independently.
delay 学び始める		is a special suspending function. It suspends the coroutine for a specific time. Suspending a coroutine does not block the underlying thread, but allows other coroutines to run and use the underlying thread for their code.
runBlocking 学び始める		is also a coroutine builder that bridges the non-coroutine world of a regular fun main() and the code with coroutines inside of runBlocking {...} curly braces.
suspending function 学び始める		can be used inside coroutines just like regular functions, but their additional feature is that they can, in turn, use other suspending functions
Scope builder 学び始める		It creates a coroutine scope and does not complete until all launched children complete. runBlocking and coroutineScope builders may look similar because they both wait for their body and all its children to complete. The main difference is that the runBlocking method blocks the current thread for waiting, while coroutineScope just suspends.
Job 学び始める		A launch coroutine builder returns a Job object that is a handle to the launched coroutine and can be used to explicitly wait for its completion. For example, you can wait for completion of the child coroutine and then print "Done" string: val job = launch {// launch a new coroutine and keep a reference to its Job delay(1000L) println("World!")}

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