Continues migration with DDS, Common
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#include "request_helper.h"
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#ifdef REQUEST_HELPER_WITH_GUI
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#include <LtsWidgets/lts_global_wait_dialog.h>
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#include <LtsWidgets/lts_message_dialog.h>
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#include <QWidget>
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#endif
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#include <QEventLoop>
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#include <QTimer>
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#include <memory>
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#include <QJsonDocument>
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#include <QJsonObject>
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#define DEBUG
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namespace LtsUtils
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{
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bool RequestHelper::s_debug = false;
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RequestHelper::RequestHelper(QObject *parent, bool quiet,
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const std::function<void (void)> &success,
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const std::function<void (void)> &failure)
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: QObject(parent)
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, m_failed(false)
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, m_repliedId(-1)
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, m_quiet(quiet)
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, m_blockingCall(true)
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, m_successFn(success)
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, m_failureFn(failure)
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{
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connect(this, &RequestHelper::signalSuccess, this, m_successFn, Qt::QueuedConnection);
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connect(this, &RequestHelper::signalFailed, this, m_failureFn, Qt::QueuedConnection);
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if (s_debug)
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{
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QTimer *t = new QTimer(this);
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t->setInterval(2000);
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t->setSingleShot(true);
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connect(this, &RequestHelper::signalNextRequest, t, static_cast<void (QTimer::*)(void)>(&QTimer::start));
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connect(t, &QTimer::timeout, this, &RequestHelper::slotNextRequest, Qt::QueuedConnection);
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}
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else
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{
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connect(this, &RequestHelper::signalNextRequest,
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this, &RequestHelper::slotNextRequest,
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Qt::QueuedConnection
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);
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}
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}
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void RequestHelper::addRequest(const std::function<int64_t()> &requestFunction,
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const std::function<void(const Core::FunctionReply &baseReply)> &baseReplyHandler)
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{
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m_requestFunctions.append(RequestFunctionContainer(requestFunction, baseReplyHandler));
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}
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bool RequestHelper::requestReply(const Core::FunctionReply &baseReply)
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{
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const Core::FunctionReplyObject fro(baseReply.id(),
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baseReply.errorString(),
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baseReply.errorParams());
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return _requestReply(fro, &baseReply);
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}
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bool RequestHelper::requestReply(const Core::FunctionReplyObject &replyObject)
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{
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return _requestReply(replyObject, nullptr);
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}
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bool RequestHelper::_requestReply(const Core::FunctionReplyObject &fro, const Core::FunctionReply *baseReply)
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{
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m_errorString = fro.translated();
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#ifdef REQUEST_HELPER_WITH_GUI
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if (fro.error())
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{
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if (!m_quiet)
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{
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if (m_blockingCall)
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{
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LtsWidgets::LtsMessageDialog::showMessage(qobject_cast<QWidget *>(parent()),
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m_errorString,
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tr("Request failed"));
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}
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else
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{
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new LtsWidgets::LtsMessageDialogNew(qobject_cast<QWidget *>(parent()),
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m_errorString,
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tr("Request failed"));
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}
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}
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}
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#endif
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m_repliedId = fro.id();
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if (m_singleRequestCustomFunctionReply != nullptr)
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{
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if (baseReply)
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m_singleRequestCustomFunctionReply(*baseReply);
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else
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m_singleRequestCustomFunctionReply(Core::FunctionReply(fro.id(), fro.str(), fro.args(), fro.additionalInfo()));
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}
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if (fro.error())
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{
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failure();
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return false;
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}
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emit signalNextRequest();
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return true;
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}
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bool RequestHelper::startSingleRequest(const std::function<int64_t()> &requestFunction,
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const std::function<void(const Core::FunctionReply &baseReply)> &baseReplyHandler)
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{
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addRequest(requestFunction, baseReplyHandler);
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return startRequests();
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}
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void RequestHelper::failure()
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{
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m_failed = true;
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emit signalFailed();
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done();
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}
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void RequestHelper::done()
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{
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#ifdef REQUEST_HELPER_WITH_GUI
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if (!m_quiet)
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LtsWidgets::LtsGlobalWaitDialog::getInstance()->done();
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#endif
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m_requestFunctions.clear();
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m_singleRequestCustomFunctionReply = nullptr;
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if (m_blockingCall)
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emit signalQuitLoop();
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m_blockingCall = true;
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if (!m_blockingCall)
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deleteLater();
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}
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void RequestHelper::slotNextRequest()
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{
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if (m_requestFunctions.isEmpty())
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{
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if (!m_blockingCall)
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emit signalSuccess();
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done();
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return;
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}
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const RequestFunctionContainer rfc = m_requestFunctions.takeFirst();
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m_singleRequestCustomFunctionReply = rfc.second;
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int64_t result = rfc.first();
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if (result == 0)
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{
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#ifdef REQUEST_HELPER_WITH_GUI
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if (!m_quiet)
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{
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if (m_blockingCall)
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{
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LtsWidgets::LtsMessageDialog::showMessage(qobject_cast<QWidget *>(parent()),
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tr("Request failed"));
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}
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else
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{
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connect(new LtsWidgets::LtsMessageDialogNew(qobject_cast<QWidget *>(parent()),
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tr("Request failed")), &LtsWidgets::LtsMessageDialogNew::destroyed,
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this, [this]()
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{
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failure();
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});
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return;
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}
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}
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#endif
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failure();
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}
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}
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void RequestHelper::startSingleBackgroundRequest(const std::function<int64_t()> &requestFunction,
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const std::function<void (const Core::FunctionReply &)> &baseReplyHandler)
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{
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m_blockingCall = false;
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startSingleRequest(requestFunction, baseReplyHandler);
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}
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void RequestHelper::startBackgroundRequests()
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{
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m_blockingCall = false;
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startRequests();
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}
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void RequestHelper::setCustomWaitMessage(const QString &customWaitMessage)
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{
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m_customWaitMessage = (customWaitMessage + QStringLiteral(" ..."));
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}
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bool RequestHelper::startRequests()
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{
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if (m_requestFunctions.isEmpty())
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{
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#ifdef LTS_DEBUG
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qWarning("RequestHelper: started request helper without requests!");
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#endif
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return true;
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}
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m_failed = false;
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#ifdef REQUEST_HELPER_WITH_GUI
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if (!m_quiet)
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LtsWidgets::LtsGlobalWaitDialog::getInstance()->wait(m_customWaitMessage);
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m_customWaitMessage.clear();
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#endif
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m_errorString.clear();
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m_repliedId = -1;
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if (s_debug)
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{
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QTimer *t = new QTimer(this);
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t->setInterval(2000);
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connect(t, &QTimer::timeout, this, &RequestHelper::slotNextRequest, Qt::QueuedConnection);
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connect(t, &QTimer::timeout, t, &QTimer::deleteLater);
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t->start();
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}
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else
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{
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slotNextRequest();
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if (m_blockingCall)
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{
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QEventLoop loop;
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connect(this, &RequestHelper::signalQuitLoop,
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&loop, &QEventLoop::quit,
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Qt::QueuedConnection);
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loop.exec();
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}
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}
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return (!m_failed);
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}
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}
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