Files
pilotclient/src/blackcore/threadedreader.h
Klaus Basan 488d437a2a #refs 686, used settings in readers
* moved threaded reader to BlackCore (settings are normally BlackCore aware)
* created ns/subfolder VATSIM
* prepared settings for the VATSIM readers
2016-06-29 01:04:41 +02:00

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3.2 KiB
C++

/* Copyright (C) 2013
* swift project Community / Contributors
*
* This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
* directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
* including this file, may be copied, modified, propagated, or distributed except according to the terms
* contained in the LICENSE file.
*/
//! \file
#ifndef BLACKCORE_THREADED_READER_H
#define BLACKCORE_THREADED_READER_H
#include "blackcore/settings/reader.h"
#include "blackcore/blackcoreexport.h"
#include "blackmisc/worker.h"
#include <QDateTime>
#include <QObject>
#include <QReadWriteLock>
#include <QString>
#include <QtGlobal>
class QNetworkReply;
class QTimer;
namespace BlackCore
{
//! Support for threaded based reading and parsing tasks such
//! as data files via http, or file system and parsing (such as FSX models)
class BLACKCORE_EXPORT CThreadedReader : public BlackMisc::CContinuousWorker
{
public:
//! Destructor
virtual ~CThreadedReader();
//! Thread safe, set update timestamp
//! \threadsafe
QDateTime getUpdateTimestamp() const;
//! Thread safe, set update timestamp
//! \threadsafe
void setUpdateTimestamp(const QDateTime &updateTimestamp = QDateTime::currentDateTimeUtc());
//! Was setup read within last xx milliseconds
//! \threadsafe
bool updatedWithinLastMs(qint64 timeLastMs);
//! Request new reading
//! \note override as required, default is to call initialize()
virtual void requestReload();
//! Get the timer interval (ms)
//! \threadsafe
int interval() const;
//! Set inverval from settings and start
void setIntervalFromSettingsAndStart();
public slots:
//! Graceful shutdown
//! \threadsafe
void gracefulShutdown();
protected:
QTimer *m_updateTimer = nullptr; //!< update timer
mutable QReadWriteLock m_lock {QReadWriteLock::Recursive}; //!< lock which can be used from the derived classes
//! Constructor
CThreadedReader(QObject *owner, const QString &name);
//! When was reply last modified, -1 if N/A
qint64 lastModifiedMsSinceEpoch(QNetworkReply *nwReply) const;
//! Make sure everthing runs correctly in own thread
void threadAssertCheck() const;
//! Get settings, default implementation returns BlackCore::Settings::CSettingsReader::neverUpdateSettings
virtual BlackCore::Settings::CSettingsReader getSettings() const;
//! Set initial time
void setInitialTime();
//! Set periodic time
void setPeriodicTime();
//! Set the update time
//! \param updatePeriodMs <=0 stops the timer
//! \threadsafe
void setInterval(int updatePeriodMs);
private:
QDateTime m_updateTimestamp; //!< when file/resource was read
QMetaObject::Connection m_toggleConnection; //!< connection to switch interval from initial to periodic
private slots:
//! switch from initial to periodic
void ps_toggleInterval();
};
} // namespace
#endif // guard