AWS-SDK-CPP：Transfer Manager 文件下载崩溃

Question

以下在 Visual Studio 2015 上用 C++ 编写的代码崩溃。我将v 1.1.1 用于AWSSDKCPP-Trasnfer 到NuGet。我无法通过网络找到任何示例代码或将传输管理器与 C++ SDK 结合使用的正确文档。如果我有错误，请指出。

// download a single file from aws s3 bucket
// use transfer manager
// assume Aws::InitAPI() has already been called
int downloadFile(const Aws::String &bucketName, const Aws::String &objectKey) {

    auto s3Client = Aws::MakeShared<Aws::S3::S3Client>(S3_CLIENT_TAG);
    TransferManagerConfiguration transferConfig;
    transferConfig.s3Client = s3Client;

    // lambda for download progress callback
    transferConfig.downloadProgressCallback =
        [](const TransferManager*, const TransferHandle& handle)
    { std::cout << handle.IsMultipart() << std::endl; };

    // the fabled transfer manager
    TransferManager transferManager(transferConfig);
    auto transferHandle = transferManager.DownloadFile(bucketName, "sample.txt", "sample.txt");
    transferHandle->WaitUntilFinished();    // block calling thread until download complete
    return 0;
}

Answer 1

不，你没有错。这是issue #574。修复程序正在进行中。应该很快就会发布。