SQS how to interrupt long polling receiveMessagesAsync in C++

Question

Hi there,

I use long polling when "receiveMessagesAsync" from SQS. I set wait time to 20s, so that I don' need to make too many calls. However, when I was trying to close my instance also closing SQS thread, the long polling can't be interrupted, but had to wait for 20 seconds to finish it.

Is there a way to interrupt "receiveMessages" with long polling **in C++**? I did find some reference in Java  [checkInterrupted ](https://github.com/aws/aws-sdk-java/blob/7bf0fbec42de8a7d54875510f27fb363ca2d19f5/aws-java-sdk-core/src/main/java/com/amazonaws/http/AmazonHttpClient.java#L877) in java sdk, but seems in C++  ["However, the client object must continue to exist until the asynchronous operation finishes"](https://docs.aws.amazon.com/zh_cn/sdk-for-cpp/v1/developer-guide/async-methods.html).

So, how can I abort a long polling receiveMessagesAsync call in C++?
*I also tried ContinousRequstHandler but that won't work.

Srinath · Answer

Using the AWS C++ SDK, there is no direct way to interrupt or abort a long-polling `receiveMessagesAsync` call once it has been initiated. The SDK does not provide a mechanism to cancel or interrupt an ongoing asynchronous operation.

For this, you would need to have a custom implementation where you would need to monitor the state of your application and signal the need to abort the long-polling operation.

SQS how to interrupt long polling receiveMessagesAsync in C++

Add your answer

Relevant content