> ## Documentation Index
> Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# 방법: 지연된 콜백 사용

> 방법: 지연된 콜백 사용

## 예제

`XTaskQueueSubmitDelayedCallback` API를 사용하여 작업 큐에 향후에 실행할 콜백을 제출합니다. 이를 통해 짧은 지연 후 실패한 호출을 다시 시도하거나, 주기적인 이벤트를 위한 저렴한 타이머로 사용할 수 있습니다.

다음 예에서는 500ms마다 한 번씩 10개의 콜백을 호출합니다.

```c++ theme={null}
void SubmittingDelayedCallback()  
{  
    XTaskQueueHandle queue;  
  
    HRESULT hr = XTaskQueueCreate(  
        XTaskQueueDispatchMode::ThreadPool,  
        XTaskQueueDispatchMode::ThreadPool,  
        &queue);  
  
    if (FAILED(hr))  
    {  
        printf("Failed to create task queue: 0x%x\r\n", hr);  
        return;  
    }  
  
    struct CallContext  
    {  
        DWORD count;  
        XTaskQueueHandle queue;  
        XTaskQueueCallback* callback;  
    } callContext;  
  
    auto callback = [](void* context, bool cancel)  
    {  
        CallContext *callContext = static_cast<CallContext*>(context);  
        callContext->count++;  
        printf("Periodic callback %d\r\n", callContext->count);  
        if (callContext->count != 10 && !cancel)  
        {  
            HRESULT hr = XTaskQueueSubmitDelayedCallback(  
                callContext->queue,  
                XTaskQueuePort::Completion,  
                500,  
                callContext,  
                callContext->callback);  
  
            if (FAILED(hr))  
            {  
                printf("Failed submitting next callback: 0x%x\r\n", hr);  
                callContext->count = 10; // Prevents us from waiting forever.  
            }  
        }  
    };  
  
    callContext.count = 0;  
    callContext.queue = queue;  
    callContext.callback = callback;  
  
    // Use the task queue to make 10 periodic calls.  
    hr = XTaskQueueSubmitDelayedCallback(  
        queue,  
        XTaskQueuePort::Completion,  
        500,  
        &callContext,  
        callback);  
  
    if (FAILED(hr))  
    {  
        printf("Failed submitting delayed callback: 0x%x\r\n", hr);  
        XTaskQueueCloseHandle(queue);  
        return;  
    }  
  
    // Now, wait for all of the calls to be completed.  
    while (callContext.count != 10)  
    {  
        Sleep(1000);  
    }  
  
    XTaskQueueTerminate(queue, true, nullptr, nullptr);  
    XTaskQueueCloseHandle(queue);  
}  
```

## 샘플 출력

```
Periodic callback 1  
Periodic callback 2  
Periodic callback 3  
Periodic callback 4  
Periodic callback 5  
Periodic callback 6  
Periodic callback 7  
Periodic callback 8  
Periodic callback 9  
Periodic callback 10  
```

## 참고 항목

[작업 큐 설계](/build/core-features/common/async/async-task-queue-design)


## Related topics

- [비동기 작업 큐 설계](/ko/build/core-features/common/async/async-task-queue-design.md)
- [방법: 콜백 제출](/ko/build/core-features/common/async/async-task-queue-design-howto/submitting-callbacks.md)
- [Game Saves 오프라인 모드](/ko/services/playfab/player-progression/game-saves/offline.md)
- [GameInput 고급 주제: 포스 피드백 및 콜백](/ko/build/core-features/common/input/advanced/index.md)
- [GameInput 고급 주제](/ko/build/core-features/common/input/advanced/input-advanced-topics.md)