C++ (Cpp) xml_document::load示例

int HLR2::_exec(const char *url, const char *payload, unsigned short timeout, pugi::xml_document& doc, std::string& headers)
{
    const short maxTry = 3;
    short retry = 0;

    if (!url || !*url) {
        LOG_ERROR("%s::%s: Invalid URL!", __class__, __func__);
        return -1;
    }

    while (maxTry >= ++retry) {
        short status = _hc.httpPost(url, payload, "text/xml", timeout);
        LOG_INFO("%s::%s: url: %s, payload: %s, timeout: %d, status: %d, headers: %s, body: %s", __class__, __func__,
                url, payload, timeout, status, _hc.getResponseHeaders(), _hc.getResponseBody());

        if (200 != status && 307 != status) {
            return -1;
        }

        headers = _hc.getResponseHeaders();
        std::string body = _hc.getResponseBody();

        if (!doc.load(body.c_str())) {
            LOG_ERROR("%s::%s: Malformed XML response!: %s", __class__, __func__, body.c_str());
            return -1;
        }

        pugi::xml_node result = doc.find_node(_isResult);
        int resultCode = atoi(result.child("ResultCode").child_value());

        switch (resultCode) {
            case 0:
            case 3016:
            case 3810:
                //-- success, exit...
                return 0;
            case 5004:
                //-- invalid session, retry...
                LOG_INFO("%s::%s: Will retry: %d", __class__, __func__, retry);
                break;
            default:
                LOG_ERROR("%s::%s: ResultCode: %s, ResultDesc: %s", __class__, __func__,
                        result.child("ResultCode").child_value(), result.child("ResultDesc").child_value());
                return -1;
        }

        //-- wait for a while...
        sys_msleep(1000);
    }

    return -1;
}