Esempio n. 1
0
        /// <summary>
        /// Creates a new instance of the <see cref="DynamicCalculator"/>.
        /// </summary>
        public DynamicCalculator()
        {
            m_latestMeasurements = new ImmediateMeasurements();
            m_latestMeasurements.RealTimeFunction = () => RealTime;

            m_variableNames     = new HashSet <string>();
            m_keyMapping        = new Dictionary <MeasurementKey, string>();
            m_nonAliasedTokens  = new SortedDictionary <int, string>();
            m_expressionContext = new ExpressionContext();

            m_timerOperation = new DelayedSynchronizedOperation(ProcessLatestMeasurements, ex => OnProcessException(MessageLevel.Error, ex));
        }
Esempio n. 2
0
        private long m_realTimeTicks;                                   // Timestamp of real-time or the most recently received measurement

        #endregion

        #region [ Constructors ]

        /// <summary>
        /// Creates a new instance of the <see cref="FacileActionAdapterBase"/> class.
        /// </summary>
        protected FacileActionAdapterBase()
        {
            m_latestMeasurements = new ImmediateMeasurements();
            m_latestMeasurements.RealTimeFunction = () => RealTime;
            m_useLocalClockAsRealTime             = true;
        }
Esempio n. 3
0
        private bool m_disposed;                            // Disposed flag detects redundant calls to dispose method

        #endregion

        #region [ Constructors ]

        /// <summary>
        /// Creates a new <see cref="ConcentratorBase"/>.
        /// </summary>
        /// <remarks>
        /// Concentration will not begin until consumer "Starts" concentrator (i.e., calling <see cref="ConcentratorBase.Start"/> method or setting
        /// <c><see cref="ConcentratorBase.Enabled"/> = true</c>).
        /// </remarks>
        protected ConcentratorBase()
        {
            m_usePrecisionTimer = true;
            m_allowSortsByArrival = true;
            m_allowPreemptivePublishing = true;
            m_performTimestampReasonabilityCheck = true;
            m_processingInterval = -1;
            m_downsamplingMethod = DownsamplingMethod.LastReceived;
            m_latestMeasurements = new ImmediateMeasurements(this);
            m_maximumPublicationTimeout = Timeout.Infinite;

            // Create a new queue for managing real-time frames
            m_frameQueue = new FrameQueue(this.CreateNewFrame);

            // Set minimum timer resolution to one millisecond to improve timer accuracy
            PrecisionTimer.SetMinimumTimerResolution(1);

            // Create publication wait handle
            m_publicationWaitHandle = new AutoResetEvent(false);

            // Create publication thread - this may be one of the few times when you can
            // accurately argue that you need high priority thread scheduling...
            m_publicationThread = new Thread(PublishFrames);
            m_publicationThread.Priority = ThreadPriority.Highest;
            m_publicationThread.Start();

            // This timer monitors the total number of unpublished samples every 5 seconds. This is a useful statistic
            // to monitor: if total number of unpublished samples exceed lag time, measurement concentration could
            // be falling behind.
            m_monitorTimer = new System.Timers.Timer();
            m_monitorTimer.Interval = 5000;
            m_monitorTimer.AutoReset = true;
            m_monitorTimer.Elapsed += MonitorUnpublishedSamples;
        }
Esempio n. 4
0
        /// <summary>
        /// Releases the unmanaged resources used by the <see cref="ConcentratorBase"/> object and optionally releases the managed resources.
        /// </summary>
        /// <param name="disposing">true to release both managed and unmanaged resources; false to release only unmanaged resources.</param>
        protected virtual void Dispose(bool disposing)
        {
            if (!m_disposed)
            {
                try
                {
                    if (disposing)
                    {
                        // Make sure concentrator is stopped
                        Stop();

                        DetachFromFrameRateTimer(m_framesPerSecond, m_processingInterval);

                        m_publicationThread = null;

                        if (m_publicationWaitHandle != null)
                        {
                            AutoResetEvent publicationWaitHandle = m_publicationWaitHandle;
                            m_publicationWaitHandle = null;
                            publicationWaitHandle.Set();
                            publicationWaitHandle.Close();
                        }

                        if (m_frameQueue != null)
                        {
                            m_frameQueue.Dispose();
                        }
                        m_frameQueue = null;

                        if (m_monitorTimer != null)
                        {
                            m_monitorTimer.Elapsed -= MonitorUnpublishedSamples;
                            m_monitorTimer.Dispose();
                        }
                        m_monitorTimer = null;

                        if (m_latestMeasurements != null)
                        {
                            m_latestMeasurements.Dispose();
                        }
                        m_latestMeasurements = null;

                        m_lastDiscardedMeasurement = null;

                        // Clear minimum timer resolution.
                        PrecisionTimer.ClearMinimumTimerResolution(1);
                    }
                }
                finally
                {
                    m_disposed = true;  // Prevent duplicate dispose.

                    if (Disposed != null)
                        Disposed(this, EventArgs.Empty);
                }
            }
        }
Esempio n. 5
0
        private long m_realTimeTicks;                                // Timestamp of real-time or the most recently received measurement

        #endregion

        #region [ Constructors ]

        /// <summary>
        /// Creates a new instance of the <see cref="FacileActionAdapterBase"/> class.
        /// </summary>
        protected FacileActionAdapterBase()
        {
            m_latestMeasurements = new ImmediateMeasurements {
                RealTimeFunction = () => RealTime
            };
        }
        private long m_realTimeTicks;                                   // Timestamp of real-time or the most recently received measurement

        #endregion

        #region [ Constructors ]

        /// <summary>
        /// Creates a new instance of the <see cref="FacileActionAdapterBase"/> class.
        /// </summary>
        protected FacileActionAdapterBase()
        {
            m_latestMeasurements = new ImmediateMeasurements();
            m_latestMeasurements.RealTimeFunction = () => RealTime;
            m_useLocalClockAsRealTime = true;
        }
        private bool m_disposed;                            // Disposed flag detects redundant calls to dispose method

        #endregion

        #region [ Constructors ]

        /// <summary>
        /// Creates a new <see cref="ConcentratorBase"/>.
        /// </summary>
        /// <remarks>
        /// Concentration will not begin until consumer "Starts" concentrator (i.e., calling <see cref="ConcentratorBase.Start"/> method or setting
        /// <c><see cref="ConcentratorBase.Enabled"/> = true</c>).
        /// </remarks>
        protected ConcentratorBase()
        {
            Log = Logger.CreatePublisher(GetType(), MessageClass.Framework);
            m_usePrecisionTimer = true;
            m_allowSortsByArrival = true;
            m_allowPreemptivePublishing = true;
            m_performTimestampReasonabilityCheck = true;
            m_processingInterval = -1;
            m_downsamplingMethod = DownsamplingMethod.LastReceived;
            m_latestMeasurements = new ImmediateMeasurements(this);
            m_maximumPublicationTimeout = Timeout.Infinite;

            // Create a new queue for managing real-time frames
            m_frameQueue = new FrameQueue(this.CreateNewFrame);

            // Set minimum timer resolution to one millisecond to improve timer accuracy
            PrecisionTimer.SetMinimumTimerResolution(1);

            // Create publication wait handle
            m_publicationWaitHandle = new AutoResetEvent(false);

            // Create publication thread
            m_publicationThread = new Thread(PublishFrames);
            m_publicationThread.Start();

            // This timer monitors the total number of unpublished samples every 5 seconds. This is a useful statistic
            // to monitor: if total number of unpublished samples exceed lag time, measurement concentration could
            // be falling behind.
            m_monitorTimer = Common.TimerScheduler.CreateTimer(5000);
            m_monitorTimer.AutoReset = true;
            m_monitorTimer.Elapsed += MonitorUnpublishedSamples;
        }