This class looks into plugins and gets hold of their settings. It does this by reflection. It supports the command processor.
Esempio n. 1
0
        private void Acquire()
        {
            try
            {
                // lock a monitor onto the acquisitor, to synchronise with the controller
                // when acquiring a set number of scans - the monitor is released in
                // AcquisitionFinishing()
                Monitor.Enter(AcquisitorMonitorLock);

                // initialise all of the plugins
                config.outputPlugin.AcquisitionStarting();
                config.pgPlugin.AcquisitionStarting();
                config.shotGathererPlugin.AcquisitionStarting();
                config.switchPlugin.AcquisitionStarting();
                config.yagPlugin.AcquisitionStarting();
                config.analogPlugin.AcquisitionStarting();

                for (int scanNumber = 0 ;; scanNumber++)
                {

                    // prepare for the scan start
                    config.outputPlugin.ScanStarting();
                    config.pgPlugin.ScanStarting();
                    config.shotGathererPlugin.ScanStarting();
                    config.switchPlugin.ScanStarting();
                    config.yagPlugin.ScanStarting();
                    config.analogPlugin.ScanStarting();
                    for (int pointNumber = 0 ; pointNumber < (int)config.outputPlugin.Settings["pointsPerScan"] ; pointNumber++)
                    {
                        // calculate the new scan parameter and move the scan along
                        config.outputPlugin.ScanParameter = NextScanParameter(pointNumber, scanNumber);

                        // check for a change in the pg parameters
                        lock(this)
                        {
                            if (tweakFlag)
                            {
                                // now it's safe to update the pattern generator settings
                                // and ask the pg to reload
                                SettingsReflector sr = new SettingsReflector();
                                sr.SetField(config.pgPlugin,
                                    latestTweak.parameter, latestTweak.newValue.ToString());
                                config.pgPlugin.ReloadPattern();
                                tweakFlag = false;
                            }
                        }

                        ScanPoint sp = new ScanPoint();
                        sp.ScanParameter = config.outputPlugin.ScanParameter;

                        for (int shotNum = 0; shotNum < (int)(config.outputPlugin.Settings["shotsPerPoint"]); shotNum++)
                        {
                            // Set the switch state
                            config.switchPlugin.State = true;

                            // wait for the data gatherer to finish
                            config.shotGathererPlugin.ArmAndWait();

                            // read out the data

                            sp.OnShots.Add(config.shotGathererPlugin.Shot);

                            if ((bool)config.switchPlugin.Settings["switchActive"])
                            {
                                config.switchPlugin.State = false;
                                config.shotGathererPlugin.ArmAndWait();
                                sp.OffShots.Add(config.shotGathererPlugin.Shot);
                            }
                        }

                        // sample the analog channels and add them to the ScanPoint
                        config.analogPlugin.ArmAndWait();
                        sp.Analogs.AddRange(config.analogPlugin.Analogs);

                        // send up the data bundle
                        DataEventArgs evArgs = new DataEventArgs();
                        evArgs.point = sp;
                        OnData(evArgs);

                        // check for exit
                        if (CheckIfStopping())
                        {
                            AcquisitionFinishing(config);
                            return;
                        }
             					}
                    // prepare for the start of the next scan
                    OnScanFinished();
                    config.pgPlugin.ScanFinished();
                    config.yagPlugin.ScanFinished();
                    config.outputPlugin.ScanFinished();
                    config.shotGathererPlugin.ScanFinished();
                    config.switchPlugin.ScanFinished();
                    config.analogPlugin.ScanFinished();
                    // I think that this pause will workaround an annoying threading bug
                    // I should probably be less cheezy and put a lock in, but I'm not really
                    // sure that I know what the bug is as it's intermittent (and rare).
                    Thread.Sleep(750);

                    // check if we are finished scanning
                    if (scanNumber + 1 == numberOfScans)
                    {
                        backendState = AcquisitorState.stopped;
                        // set the controller state to stopped
                        Controller.GetController().appState = Controller.AppState.stopped;
                        AcquisitionFinishing(config);
                        return;
                    }

                }

            }
            catch (Exception e)
            {
                // last chance exception handler - this stops a rogue exception in the
                // acquire loop from killing the whole program
                Console.Error.Write(e.Message + e.StackTrace);
                MessageBox.Show("Exception caught in acquire loop.\nTake care - the program " +
                    "is probably unstable.\n" + e.Message + "\n" + e.StackTrace, "Acquire error",
                    MessageBoxButtons.OK, MessageBoxIcon.Error);
                // Try and stop the pattern gracefully before the program dies
                config.pgPlugin.AcquisitionFinished();
                lock (this) backendState = AcquisitorState.stopped;
            }
        }
Esempio n. 2
0
 // change a parameter in the current profile. The way that the plugin is selected is a cheesy hack -
 // clearly the commandProcessor/pluginManager/settingsReflector design is inadequate
 // The group mode flag is also a cheesy hack, but might be quite useful
 public void AdjustProfileParameter(String plugin, String parameter, String newValue, bool groupMode)
 {
     SettingsReflector sr = new SettingsReflector();
     if (!groupMode)
     {
         sr.SetField(profileManager.Processor.PluginForString(profileManager.CurrentProfile, plugin),
             parameter, newValue);
     }
     else
     {
         ArrayList profiles = profileManager.ProfilesInGroup(profileManager.CurrentProfile.Group);
         foreach (Profile p in profiles)
             sr.SetField(profileManager.Processor.PluginForString(p, plugin), parameter, newValue);
     }
 }