C++ (Cpp) S3Params::getMemoryContext Examples

Example #1

File: s3key_reader.cpp Project: 50wu/gpdb

void S3KeyReader::open(const S3Params& params) {
    S3_CHECK_OR_DIE(this->s3Interface != NULL, S3RuntimeError, "s3Interface must not be NULL");

    this->sharedError = false;

    this->numOfChunks = params.getNumOfChunks();
    S3_CHECK_OR_DIE(this->numOfChunks > 0, S3RuntimeError, "numOfChunks must not be zero");

    this->offsetMgr.setKeySize(params.getKeySize());
    this->offsetMgr.setChunkSize(params.getChunkSize());

    S3_CHECK_OR_DIE(params.getChunkSize() > 0, S3RuntimeError,
                    "chunk size must be greater than zero");

    this->chunkBuffers.reserve(this->numOfChunks);

    for (uint64_t i = 0; i < this->numOfChunks; i++) {
        this->chunkBuffers.emplace_back(params.getS3Url(), *this, params.getMemoryContext());
    }

    for (uint64_t i = 0; i < this->numOfChunks; i++) {
        this->chunkBuffers[i].setS3InterfaceService(this->s3Interface);

        pthread_t thread;
        pthread_create(&thread, NULL, DownloadThreadFunc, &this->chunkBuffers[i]);
        this->threads.push_back(thread);
    }
}

Example #2

File: s3restful_service.cpp Project: 50wu/gpdb

S3RESTfulService::S3RESTfulService(const S3Params &params)
    : s3MemContext(const_cast<S3MemoryContext &>(params.getMemoryContext())) {
    // This function is not thread safe, must NOT call it when any other
    // threads are running, that is, do NOT put it in threads.
    curl_global_init(CURL_GLOBAL_ALL);

    this->lowSpeedLimit = params.getLowSpeedLimit();
    this->lowSpeedTime = params.getLowSpeedTime();
    this->debugCurl = params.isDebugCurl();
    this->chunkBufferSize = params.getChunkSize();
    this->verifyCert = params.isVerifyCert();
}

Example #3

File: gpwriter.cpp Project: 50wu/gpdb

// invoked by s3_export(), need to be exception safe
GPWriter* writer_init(const char* url_with_options, const char* format) {
    GPWriter* writer = NULL;
    s3extErrorMessage.clear();

    try {
        if (!url_with_options) {
            return NULL;
        }

        string urlWithOptions(url_with_options);

        S3Params params = InitConfig(urlWithOptions);

        InitRemoteLog();

        // Prepare memory to be used for thread chunk buffer.
        PrepareS3MemContext(params);

        string extName = params.isAutoCompress() ? string(format) + ".gz" : format;
        writer = new GPWriter(params, extName);
        if (writer == NULL) {
            return NULL;
        }

        memoryContextHolder = new S3MemoryContext(params.getMemoryContext());

        writer->open(params);
        return writer;
    } catch (S3Exception& e) {
        if (writer != NULL) {
            delete writer;
            delete memoryContextHolder;
        }
        s3extErrorMessage =
            "writer_init caught a " + e.getType() + " exception: " + e.getFullMessage();
        S3ERROR("writer_init caught %s: %s", e.getType().c_str(), s3extErrorMessage.c_str());
        return NULL;
    } catch (...) {
        if (writer != NULL) {
            delete writer;
            delete memoryContextHolder;
        }
        S3ERROR("Caught an unexpected exception.");
        s3extErrorMessage = "Caught an unexpected exception.";
        return NULL;
    }
}