我知道,在4.8版本中,每個http請求都有自己的線程運行。
我正在做一個鏈接檢查器的應用程序,在while循環中做了很多http請求,我注意到在Windows任務管理器中,我的應用程序隨着時間的推移使用了超過1600個線程,並且該數字永遠不會下降,直到它崩潰了應用程序。 (我猜這就是原因。)QNetworkAccessManager線程永不完成
我的問題是,QNetworkAccessManager
有沒有使用線程池的選項?
或者它有一個選項來完成它的http請求後清理它的線程嗎?
這是主要的循環:
while(!rpm_urlStack->isEmpty())
{
QString url = rpm_urlStack->top();
//define the reply
QNetworkReply *reply;
rpm_urlStack->pop();
QString urlForReq(url);
bool returnVal = true;
QNetworkRequest request;
request.setUrl(QUrl(urlForReq));
request.setRawHeader("User-Agent", USER_AGENT.toUtf8());
request.setRawHeader("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7");
request.setRawHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
request.setRawHeader("Accept-Language", "en-us,en;q=0.5");
request.setRawHeader("Connection", "Keep-Alive");
QEventLoop loop;
reply = m_networkManager->get(request);
connect(reply, SIGNAL(finished()), &loop, SLOT(quit()));
loop.exit();
if(!loop.isRunning()) {
loop.exec();
}
RequestFinishedHandler(reply);
// this is how I delete the reply object
delete reply;
}
RequestFinishedHandler(QNetworkReply *reply)
{
if (reply->error() > 0) {
QNetworkReply::NetworkError networkError = reply->error();
QString err = reply->errorString();
} else {
QVariant vStatusCodeV = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute);
QMutexLocker lock(_pMutex); // _pMutex defined as class member
char *buffer;
buffer = getCurrentDateTime();
QTextStream out(m_file);
out << buffer << " " << _sCurrentUrl << "\n";
lock.unlock();
if(vStatusCodeV.toInt() == 200) {
QString ApiResponse;
QByteArray data;
data=reply->readAll();
ApiResponse.append(QString::fromUtf8(data));
}
}
}
RequestFinishedHandler函數做了什麼? – didierc
我更新了問題 – user63898