AWS-SDK-CPP：传输管理器文件下载崩溃

Question

以下用 C++ 编写的代码在 Visual Studio 2015 年崩溃。我将 v 1.1.1 用于 AWSSDKCPP-Trasnfer 到 NuGet。我无法在网上找到任何示例代码，也找不到有关将传输管理器与 C++ SDK 一起使用的适当文档。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，你没有看错。这是一个issue #574。正在修复中。应该很快就会发布。

AWS-SDK-CPP：传输管理器文件下载崩溃

AWS-SDK-CPP: Transfer Manager file download crashes

amazon-s3

awss3transfermanager

aws-sdk-cpp