Method genUniqueKeyName

gpcontrib/gpcloud/src/gpwriter.cpp:24–38

}

string GPWriter::genUniqueKeyName(const S3Url& s3Url) {
    string fullUrl = s3Url.getFullUrlForCurl();

    while (true) {
        stringstream ss;
        ss << s3ext_segid << this->constructRandomStr() << "." << this->format;

        if (!this->s3InterfaceService.checkKeyExistence(
                S3Url((fullUrl + ss.str()), (s3Url.getSchema() == "https"), s3Url.getVersion(),
                      s3Url.getRegion()))) {
            string keyName = ss.str();
            return s3Url.getPrefix() + keyName;
        }
    }
}

string GPWriter::constructRandomStr() {
    int randomDevice = ::open("/dev/urandom", O_RDONLY);