Qt开源网络库[6]-超时功能

/**
 * @brief msec <= 0, disable timeout
 *        msec >  0, enable timeout
 */
HttpRequest &timeout(const int &msec = -1);

class HttpResponseTimeout : public QObject {
    Q_OBJECT
public:
 HttpResponseTimeout(QNetworkReply *parent = NULL, const int timeout = -1) : QObject(parent) {
 if (timeout > 0)
 QTimer::singleShot(timeout, this, SLOT(onTimeout()));
 }
private slots:
 void onTimeout() {
 QNetworkReply *reply = static_cast<QNetworkReply*>(parent());
 if (reply->isRunning()) {
            reply->abort();
            reply->deleteLater();
 }
 }
};

static HttpService http;
http.get("http://www.qtbig.com")
 .onResponse(this, SLOT(finish(QByteArray))) /* 接收数据 */
 .onResponse(this, SLOT(downloadProgress(qint64,qint64))) /* 接收进度 */
 .onError(this, SLOT(error(QNetworkReply::NetworkError, QNetworkReply*))) /* 错误处理 */
 .timeout(30*1000) /* 30s */
 .exec();