A QElapsedTimer based timer to replace use of QTime as a timer. More...

#include <mythtimer.h>

Public Types
enum	StartState { kStartRunning, kStartInactive }

Public Member Functions
	MythTimer (StartState state=kStartInactive)
	Creates a timer.
void	start (void)
	starts measuring elapsed time.
int	restart (void)
	Returns milliseconds elapsed since last start() or restart() and resets the count.
void	stop (void)
	Stops timer, next call to isRunning() will return false and any calls to elapsed() or restart() will return 0 until after timer is restarted by a call to start() or restart().
void	addMSecs (int ms)
	Adds an offset to the last call to start() or restart().
int	elapsed (void) const
	Returns milliseconds elapsed since last start() or restart()
bool	isRunning (void) const
	Returns true if start() or restart() has been called at least once since construction and since any call to stop().

Private Attributes
QElapsedTimer	m_timer
int	m_offset

Detailed Description

A QElapsedTimer based timer to replace use of QTime as a timer.

This class is not thread-safe.

Definition at line 12 of file mythtimer.h.

Member Enumeration Documentation

enum MythTimer::StartState

Enumerator:

kStartRunning
kStartInactive

Definition at line 15 of file mythtimer.h.

Constructor & Destructor Documentation

MythTimer::MythTimer ( StartState state = kStartInactive )

Creates a timer.

If a start state of kStartRunning is passed in the timer is started immediately as if start() had been called.

Definition at line 36 of file mythtimer.cpp.

Member Function Documentation

void MythTimer::start ( void )

starts measuring elapsed time.

Definition at line 45 of file mythtimer.cpp.

Referenced by TestMythTimer::AddMSecsIsResetOnStart(), TestMythTimer::AddMSecsWorks(), DTVRecorder::BufferedWrite(), MThread::Cleanup(), DVBStreamHandler::CycleFiltersByPriority(), MythContextPrivate::DefaultUPnP(), ThreadedFileWriter::DiskLoop(), TV::DoSeek(), elapsed(), AnalogSignalMonitor::handleHDPVR(), MythPlayer::IsPlaying(), MythTimer(), MythUITextEdit::MythUITextEdit(), AudioOutputOSS::OpenDevice(), FileRingBuffer::OpenFile(), MythPlayer::OpenFile(), PlayerContext::PlayerContext(), DeviceReadBuffer::Poll(), DarwinFirewireDevice::ProcessNoDataMessage(), MPEGStreamData::ProcessPAT(), RemoteFile::Read(), ZMClient::readData(), RingBuffer::ReadDirect(), BufferedSocketDevice::ReadLine(), MythSocket::ReadReal(), MythSocket::ReadStringListReal(), MythCommFlagPlayer::RebuildSeekTable(), DeviceReadBuffer::ReportStats(), restart(), MpegRecorder::run(), EITScanner::run(), MPoolThread::run(), SignalMonitor::run(), MythCCExtractorPlayer::run(), RingBuffer::run(), FreeSpaceUpdater::run(), FirewireSignalMonitor::RunTableMonitor(), RecorderBase::SavePositionMap(), DecoderBase::SavePositionMapDelta(), DeviceReadBuffer::Setup(), LinuxFirewireDevice::SignalReset(), PlayerContext::StartPlaying(), TV::StartRecorder(), MThreadPool::startReserved(), TestMythTimer::StartsOnStart(), HTTPLiveStream::StartStream(), HTTPLiveStream::StopStream(), TestMythTimer::TimeElapsesAfterStart(), TestMythTimer::TimeElapsesContinually(), TestMythTimer::TimeResetsOnRestart(), TV::TV(), TV::UpdateOSDSignal(), FirewireSignalMonitor::UpdateValues(), MythContextPrivate::UPnPautoconf(), RingBuffer::WaitForAvail(), TVRec::WaitForEventThreadSleep(), RingBuffer::WaitForPause(), RecorderBase::WaitForPause(), RingBuffer::WaitForReadsAllowed(), DeviceReadBuffer::WaitForUsed(), and MythSocket::WriteStringListReal().

int MythTimer::restart ( void )

Returns milliseconds elapsed since last start() or restart() and resets the count.

Note: If timer had not been started before this is called, this returns zero.; If addMSecs() has been called and the total offset applied is negative then this can return a negative number.

Definition at line 60 of file mythtimer.cpp.

Referenced by TestMythTimer::AddMSecsIsResetOnRestart(), DTVRecorder::BufferedWrite(), GLSingleView::EffectKenBurns(), MythUITextEdit::keyPressEvent(), MythCommFlagPlayer::RebuildSeekTable(), MythDVDPlayer::ResetStillFrameTimer(), MythCCExtractorPlayer::run(), MythDVDPlayer::SetStillFrameTimeout(), GLSingleView::SlideTimeout(), TestMythTimer::TimeElapsesAfterRestart(), TestMythTimer::TimeResetsOnRestart(), and MythSocket::WriteStringListReal().

void MythTimer::stop ( void )

Stops timer, next call to isRunning() will return false and any calls to elapsed() or restart() will return 0 until after timer is restarted by a call to start() or restart().

Definition at line 75 of file mythtimer.cpp.

Referenced by AnalogSignalMonitor::handleHDPVR(), and MythTimer().

void MythTimer::addMSecs ( int ms )

Adds an offset to the last call to start() or restart().

This offset is removed if start() or restart() is called again. The offset may be positive or negative. This may be called multiple times to accrete various offsets.

Definition at line 122 of file mythtimer.cpp.

Referenced by TestMythTimer::AddMSecsIsResetOnRestart(), TestMythTimer::AddMSecsIsResetOnStart(), TestMythTimer::AddMSecsWorks(), and PlayerContext::PlayerContext().

int MythTimer::elapsed ( void ) const

Returns milliseconds elapsed since last start() or restart()

Note: If timer had not been started before this is called, this returns zero.; If addMSecs() has been called and the total offset applied is negative then this can return a negative number.

Definition at line 88 of file mythtimer.cpp.