org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/controlflow/evProcessor/AbsFlowTRangeUpdate.java

   1 /*******************************************************************************
   2  * Copyright (c) 2009 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are made
   5  * available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors: Alvaro Sanchez-Leon - Initial implementation
  10  *******************************************************************************/
  11 package org.eclipse.linuxtools.lttng.ui.views.controlflow.evProcessor;
  12
  13 import java.util.Vector;
  14
  15 import org.eclipse.linuxtools.lttng.state.StateStrings.ProcessStatus;
  16 import org.eclipse.linuxtools.lttng.state.evProcessor.IEventProcessing;
  17 import org.eclipse.linuxtools.lttng.state.model.LttngProcessState;
  18 import org.eclipse.linuxtools.lttng.state.model.LttngTraceState;
  19 import org.eclipse.linuxtools.lttng.ui.model.trange.TimeRangeComponent;
  20 import org.eclipse.linuxtools.lttng.ui.model.trange.TimeRangeEvent;
  21 import org.eclipse.linuxtools.lttng.ui.model.trange.TimeRangeEventProcess;
  22 import org.eclipse.linuxtools.lttng.ui.model.trange.TimeRangeEvent.Type;
  23 import org.eclipse.linuxtools.lttng.ui.views.common.AbsTRangeUpdate;
  24 import org.eclipse.linuxtools.lttng.ui.views.common.ParamsUpdater;
  25 import org.eclipse.linuxtools.lttng.ui.views.controlflow.model.FlowModelFactory;
  26 import org.eclipse.linuxtools.lttng.ui.views.controlflow.model.FlowProcessContainer;
  27
  28 public abstract class AbsFlowTRangeUpdate extends AbsTRangeUpdate implements IEventProcessing {
  29
  30         // ========================================================================
  31         // Data
  32         // =======================================================================
  33
  34         protected FlowProcessContainer procContainer = FlowModelFactory.getProcContainer();
  35         protected ParamsUpdater params = FlowModelFactory.getParamsUpdater();
  36         protected static final Long ANY_CPU = 0L;
  37
  38
  39         // ========================================================================
  40         // Methods
  41         // =======================================================================
  42         protected TimeRangeEventProcess addLocalProcess(LttngProcessState stateProcess, long traceStartTime, long traceEndTime, String traceId) {
  43                 // TimeRangeEventProcess localProcess = new TimeRangeEventProcess(id, name, startTime, stopTime, groupName, className)
  44                 TimeRangeEventProcess localProcess = new TimeRangeEventProcess(
  45                                 procContainer.bookProcId(), stateProcess.getName(),
  46                                 traceStartTime, traceEndTime, "", stateProcess.getType()
  47                                                 .getInName(), stateProcess.getCpu(), stateProcess
  48                                                 .getInsertion_time().getValue());
  49                 localProcess.setCreationTime(stateProcess.getCreation_time().getValue());
  50                 localProcess.setPid(stateProcess.getPid());
  51                 localProcess.setTgid(stateProcess.getTgid());
  52                 localProcess.setPpid(stateProcess.getPpid());
  53                 localProcess.setName(stateProcess.getName());
  54                 localProcess.setBrand(stateProcess.getBrand());
  55                 localProcess.setTraceID(traceId);
  56                 localProcess.setProcessType(stateProcess.getType().getInName());
  57                 procContainer.addProcesse(localProcess);
  58                 return localProcess;
  59         }
  60
  61         /**
  62          * Used to check if the event is visible within the current visible time
  63          * window
  64          *
  65          * @return
  66          */
  67         protected boolean withinViewRange(long stime, long etime) {
  68                 long windowStartTime = params.getStartTime();
  69                 long windowEndTime = params.getEndTime();
  70
  71                 // start time is within window
  72                 if (stime >= windowStartTime && stime <= windowEndTime) {
  73                         // The event or part of it shall be displayed.
  74                         return true;
  75                 }
  76
  77                 // end time is within window
  78                 if (etime >= windowStartTime && etime <= windowEndTime) {
  79                         // The event or part of it shall be displayed.
  80                         return true;
  81                 }
  82
  83                 // check that a portion is within the window
  84                 if (stime < windowStartTime && etime > windowEndTime) {
  85                         // The time range is bigger than the selected time window and
  86                         // crosses it
  87                         return true;
  88                 }
  89
  90                 return false;
  91         }
  92
  93         /**
  94          * @param traceSt
  95          * @param startTime
  96          * @param endTime
  97          * @param localProcess
  98          * @param params
  99          * @param stateMode
 100          * @return
 101          */
 102         protected boolean makeDraw(LttngTraceState traceSt, long startTime,
 103                         long endTime, TimeRangeEventProcess localProcess,
 104                         ParamsUpdater params, String stateMode) {
 105
 106                 // Determine start and end times to establish duration
 107                 Long stime = startTime;
 108                 Long etime = endTime;
 109
 110                 if (etime < stime) {
 111                         // Validate the sequential order of events
 112                         params.incrementEventsDiscardedWrongOrder();
 113                         return false;
 114                 }
 115
 116                 if (!withinViewRange(stime, etime)) {
 117                         // No use to process the event since it's outside
 118                         // the visible time range of the window
 119                         params.incrementEventsDiscarded();
 120                         return false;
 121                 }
 122
 123                 // Determine if the time range event will fit it the current
 124                 // pixel map
 125                 double duration = etime - stime;
 126                 double k = getPixelsPerNs(traceSt, params);
 127                 double pixels = duration * k;
 128
 129                 // ***VERIFY***
 130                 // Is all this equivalent to this call in C??
 131                 // if(ltt_time_compare(hashed_process_data->next_good_time,evtime) > 0)
 132                 // ***
 133                 // Visibility check
 134                 // Display a "more information" indication by allowing non visible event
 135                 // as long as its previous event is visible.
 136                 boolean visible = true;
 137                 if (pixels < 1) {
 138                         boolean prevEventVisibility = true;
 139                         // Get the visibility indication on previous event for
 140                         // this process
 141                         Vector<TimeRangeComponent> inMemEvents = localProcess
 142                                         .getTraceEvents();
 143                         if (inMemEvents.size() != 0) {
 144                                 TimeRangeComponent prevEvent = inMemEvents.get(inMemEvents
 145                                                 .size() - 1);
 146                                 prevEventVisibility = prevEvent.isVisible();
 147
 148                                 // ***VERIFY***
 149                                 // This replace all C Call like this one ?
 150                                 // #ifdef EXTRA_CHECK if(ltt_time_compare(evtime,
 151                                 // time_window.start_time) == -1 || ltt_time_compare(evtime,
 152                                 // time_window.end_time) == 1)
 153
 154                                 // if previous event visibility is false and the time span
 155                                 // between events less than two pixels, there is no need to
 156                                 // load it in memory i.e. not visible and a more indicator is
 157                                 // within two pixels.
 158                                 // return i.e. event discarded to free up memory
 159                                 Long eventSpan = stime - prevEvent.getStartTime();
 160                                 if (prevEventVisibility == false
 161                                                 && ((double) eventSpan * k) < 2) {
 162
 163                                         // discard the item
 164                                         params.incrementEventsDiscarded();
 165                                         return false;
 166
 167                                 }
 168                         }
 169
 170                         // if previous event is visible, set this one to not
 171                         // visible and continue
 172                         visible = false;
 173                 }
 174
 175                 // Create the time-range event
 176                 // *** VERIFY ***
 177                 // This should replace this C call, right?
 178                 // TimeWindow time_window =
 179                 // lttvwindow_get_time_window(control_flow_data->tab);
 180                 TimeRangeEvent time_window = new TimeRangeEvent(stime, etime,
 181                                 localProcess, Type.PROCESS_MODE, stateMode);
 182
 183                 // *** VERIFY ***
 184                 // This is added to replace the multiple draw and gtk/glib command but
 185                 // I'm not sure about it
 186                 time_window.setVisible(visible);
 187                 localProcess.getTraceEvents().add(time_window);
 188                 localProcess.setNext_good_time(etime);
 189
 190                 // *** VERIFY ***
 191                 // Missing checks like this one?
 192                 // #ifdef EXTRA_CHECK if(ltt_time_compare(evtime,
 193                 // time_window.start_time) == -1 || ltt_time_compare(evtime,
 194                 // time_window.end_time) == 1)
 195
 196                 return false;
 197         }
 198
 199         /**
 200          * @param traceSt
 201          * @param evTime
 202          * @param process
 203          * @param localProcess
 204          * @param params
 205          * @return
 206          */
 207         protected boolean makeDraw(LttngTraceState traceSt, long evTime,
 208                         LttngProcessState process, TimeRangeEventProcess localProcess,
 209                         ParamsUpdater params) {
 210
 211                 // TmfTimestamp stime = process.getState().getChange_LttTime();
 212                 long stime = localProcess.getNext_good_time();
 213
 214                 String stateMode;
 215                 ProcessStatus procStatus = process.getState().getProc_status();
 216                 // Use Execution mode if process state is RUN otherwise use the actual
 217                 // process state,
 218                 // this selection will determine the actual color selected for the event
 219                 if (procStatus == ProcessStatus.LTTV_STATE_RUN) {
 220                         stateMode = process.getState().getExec_mode().getInName();
 221                 } else {
 222                         stateMode = procStatus.getInName();
 223                 }
 224
 225                 return makeDraw(traceSt, stime, evTime, localProcess, params, stateMode);
 226
 227         }
 228
 229 }