Diffstat (limited to 'noncore/settings/netsystemtime/ntp.cpp') (more/less context) (show whitespace changes)
-rw-r--r-- | noncore/settings/netsystemtime/ntp.cpp | 42 |
1 files changed, 38 insertions, 4 deletions
diff --git a/noncore/settings/netsystemtime/ntp.cpp b/noncore/settings/netsystemtime/ntp.cpp index c2b64f0..04b113b 100644 --- a/noncore/settings/netsystemtime/ntp.cpp +++ b/noncore/settings/netsystemtime/ntp.cpp @@ -28,12 +28,13 @@ Ntp::Ntp( QWidget* parent, const char* name, WFlags fl ) ntpProcess = new OProcess( ); connect ( ntpProcess, SIGNAL(receivedStdout(OProcess*,char*,int)), this, SLOT(getNtpOutput(OProcess*,char*,int))); connect ( ntpProcess, SIGNAL(processExited(OProcess*)), this, SLOT(ntpFinished(OProcess*))); connect(runNtp, SIGNAL(clicked()), this, SLOT(slotRunNtp())); + connect(PushButtonPredict, SIGNAL(clicked()), this, SLOT(preditctTime())); _nextCorrection = new QTimer( this ); connect( _nextCorrection, SIGNAL(timeout()), SLOT(correctClock()) ); slotRunNtp(); readLookups(); } @@ -77,23 +78,23 @@ void Ntp::ntpFinished(OProcess*) int lastLookup = cfg.readNumEntry("time",0); int lookupCount = cfg.readNumEntry("count",-1); int time = TimeConversion::toUTC( QDateTime::currentDateTime() ); cfg.writeEntry("time", time); float timeShift = getTimeShift(); - if (timeShift = 0.0) return; + if (timeShift == 0.0) return; int secsSinceLast = time - lastLookup; TextLabelNewTime->setText(QDateTime::currentDateTime().toString()); if ( lastLookup > 0 && secsSinceLast > 60*_minLookupDiff) { lookupCount++; cfg.writeEntry("count",lookupCount); cfg.setGroup("lookup_"+QString::number(lookupCount)); _shiftPerSec = timeShift / secsSinceLast; float nextCorr = _maxOffset / _shiftPerSec; - qDebug("secs since last lookup %i", secsSinceLast);qDebug("timeshift since last lookup %f", timeShift);qDebug("timeshift since per sec %f", _shiftPerSec);qDebug("in %f secs the time will be shifted by %i", nextCorr,_maxOffset); + qDebug("secs since last lookup %i", secsSinceLast);qDebug("timeshift since last lookup %f", timeShift);qDebug("timeshift since per sec %f", _shiftPerSec); cfg.writeEntry("secsSinceLast",secsSinceLast); cfg.writeEntry("timeShift",QString::number(timeShift)); } } void Ntp::correctClock() @@ -134,13 +135,46 @@ float Ntp::getTimeShift() void Ntp::readLookups() { Config cfg("ntp",Config::User); cfg.setGroup("lookups"); int lookupCount = cfg.readNumEntry("count",-1); + float last, shift, shiftPerSec; + qDebug("lookupCount = %i",lookupCount); + TableLookups->setNumCols( 3 ); + TableLookups->setNumRows( lookupCount); + TableLookups->horizontalHeader()->setLabel(2,"secsSinceLast"); + TableLookups->horizontalHeader()->setLabel(1,"timeShift"); + TableLookups->horizontalHeader()->setLabel(0,"shift/s"); + int cw = TableLookups->width()/4; + qDebug("column width %i",cw); + TableLookups->setColumnWidth( 0, cw ); + TableLookups->setColumnWidth( 1, cw ); + TableLookups->setColumnWidth( 2, cw ); for (int i=0; i < lookupCount; i++) { cfg.setGroup("lookup_"+QString::number(i)); - TableLookups->setText( 1,i,cfg.readEntry("secsSinceLast",0)); - TableLookups->setText( 2,i,cfg.readEntry("timeShift",0)); + last = cfg.readEntry("secsSinceLast",0).toFloat(); + shift = QString(cfg.readEntry("timeShift",0)).toFloat(); + qDebug("%i last %f",i,last); + qDebug("%i shift %f",i,shift); + shiftPerSec = shift / last; + _shiftPerSec += shiftPerSec; + TableLookups->setText( i,0,QString::number(shiftPerSec)); + TableLookups->setText( i,1,QString::number(shift)); + TableLookups->setText( i,2,QString::number(last)); } + _shiftPerSec /= lookupCount+1; + TextLabelShift->setText(QString::number(_shiftPerSec)); +} + +void Ntp::preditctTime() +{ + qDebug("current time: %s",QDateTime::currentDateTime().toString().latin1()); + Config cfg("ntp",Config::User); + cfg.setGroup("lookups"); + int lastTime = cfg.readNumEntry("time",0); + int now = TimeConversion::toUTC( QDateTime::currentDateTime() ); + int corr = int((now - lastTime) * _shiftPerSec); + outPut->append( "time will be shifted by "+QString::number(corr)+ "secs"); + TextLabelPredTime->setText(QDateTime::currentDateTime().addSecs(corr).toString()); } |