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.ILttngEventProcessor;
  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.TraceDebug;
  20 import org.eclipse.linuxtools.lttng.ui.model.trange.TimeRangeComponent;
  21 import org.eclipse.linuxtools.lttng.ui.model.trange.TimeRangeEvent;
  22 import org.eclipse.linuxtools.lttng.ui.model.trange.TimeRangeEvent.Type;
  23 import org.eclipse.linuxtools.lttng.ui.model.trange.TimeRangeEventProcess;
  24 import org.eclipse.linuxtools.lttng.ui.views.common.AbsTRangeUpdate;
  25 import org.eclipse.linuxtools.lttng.ui.views.common.ParamsUpdater;
  26 import org.eclipse.linuxtools.lttng.ui.views.controlflow.model.FlowModelFactory;
  27 import org.eclipse.linuxtools.lttng.ui.views.controlflow.model.FlowProcessContainer;
  28
  29 public abstract class AbsFlowTRangeUpdate extends AbsTRangeUpdate implements ILttngEventProcessor {
  30
  31         // ========================================================================
  32         // Data
  33         // =======================================================================
  34
  35         protected FlowProcessContainer procContainer = FlowModelFactory.getProcContainer();
  36         protected ParamsUpdater params = FlowModelFactory.getParamsUpdater();
  37         protected static final Long ANY_CPU = 0L;
  38
  39
  40         // ========================================================================
  41         // Methods
  42         // =======================================================================
  43         protected TimeRangeEventProcess addLocalProcess(LttngProcessState stateProcess, long traceStartTime, long traceEndTime, String traceId) {
  44                 // TimeRangeEventProcess localProcess = new TimeRangeEventProcess(id, name, startTime, stopTime, groupName, className)
  45                 TimeRangeEventProcess localProcess = new TimeRangeEventProcess(
  46                                 procContainer.getUniqueId(), stateProcess.getName(),
  47                                 traceStartTime, traceEndTime, "", stateProcess.getType()
  48                                                 .getInName(), stateProcess.getCpu(), stateProcess
  49                                                 .getInsertion_time());
  50
  51
  52                 localProcess.setCreationTime(stateProcess.getCreation_time());
  53                 localProcess.setPid(stateProcess.getPid());
  54                 localProcess.setTgid(stateProcess.getTgid());
  55                 localProcess.setPpid(stateProcess.getPpid());
  56                 localProcess.setName(stateProcess.getName());
  57                 localProcess.setBrand(stateProcess.getBrand());
  58                 localProcess.setTraceID(traceId);
  59                 localProcess.setProcessType(stateProcess.getType().getInName());
  60                 procContainer.addItem(localProcess);
  61
  62                 if (TraceDebug.isCFV()) {
  63                         TraceDebug.traceCFV("addLocalProcess():" + localProcess);
  64                 }
  65
  66                 return localProcess;
  67         }
  68
  69         /**
  70          * Used to check if the event is visible within the current visible time
  71          * window
  72          *
  73          * @return
  74          */
  75         protected boolean withinViewRange(long stime, long etime) {
  76                 long windowStartTime = params.getStartTime();
  77                 long windowEndTime = params.getEndTime();
  78
  79                 // start time is within window
  80                 if (stime >= windowStartTime && stime <= windowEndTime) {
  81                         // The event or part of it shall be displayed.
  82                         return true;
  83                 }
  84
  85                 // end time is within window
  86                 if (etime >= windowStartTime && etime <= windowEndTime) {
  87                         // The event or part of it shall be displayed.
  88                         return true;
  89                 }
  90
  91                 // check that a portion is within the window
  92                 if (stime < windowStartTime && etime > windowEndTime) {
  93                         // The time range is bigger than the selected time window and
  94                         // crosses it
  95                         return true;
  96                 }
  97
  98                 return false;
  99         }
 100
 101         /**
 102          * @param traceSt
 103          * @param startTime
 104          * @param endTime
 105          * @param localProcess
 106          * @param params
 107          * @param stateMode
 108          * @return
 109          */
 110         protected boolean makeDraw(LttngTraceState traceSt, long startTime,
 111                         long endTime, TimeRangeEventProcess localProcess,
 112                         ParamsUpdater params, String stateMode) {
 113
 114                 if (TraceDebug.isCFV()) {
 115                         TraceDebug.traceCFV("makeDraw():[" + localProcess + ",candidate=[stime=" + startTime + ",etime=" + endTime + ",state=" + stateMode + "]]");
 116                 }
 117
 118                 // Determine start and end times to establish duration
 119                 Long stime = startTime;
 120                 Long etime = endTime;
 121
 122                 if (!withinViewRange(stime, etime)) {
 123                         // No use to process the event since it's outside
 124                         // the visible time range of the window
 125                         params.incrementEventsDiscarded(ParamsUpdater.OUT_OF_VIEWRANGE);
 126                         return false;
 127                 }
 128
 129                 if (etime < stime) {
 130                         // Validate the sequential order of events
 131                         params.incrementEventsDiscardedWrongOrder();
 132                         return false;
 133                 }
 134
 135                 // Store the next good time to start drawing the next event
 136                 // this is done this early to display an accurate start time of the
 137                 // first event
 138                 // within the display window
 139                 // ****** moved at the end since it produces gaps among the coloured rectangles
 140                 // localProcess.setNext_good_time(etime);
 141
 142                 // If First event of a process, initialise start time half page before to enable pagination to the left
 143                 if (stime < params.getStartTime()) {
 144                         // event start time is before the visible time window
 145                         long insertion = localProcess.getInsertionTime();
 146                         if (stime.longValue() == insertion) {
 147                                 // if start time is equal to insertion this is the first event to be drawn for this process
 148                                 long halfPage = (params.getEndTime() - params.getStartTime()) / 2;
 149                                 long initTime = params.getStartTime() - halfPage;
 150                                 if (initTime > insertion) {
 151                                         // start time of this event is unknown, place it half page before visible window to allow left side
 152                                         // pagination when selecting previous event
 153                                         stime = initTime;
 154                                 }
 155                         }
 156                 }
 157
 158                 // Determine if the time range event will fit it the current
 159                 // pixel map
 160                 double duration = etime - stime;
 161                 double k = getPixelsPerNs(traceSt, params);
 162                 double pixels = duration * k;
 163
 164                 // Visibility check
 165                 // Display a "more information" indication by allowing non visible event
 166                 // as long as its previous event is visible.
 167                 boolean visible = true;
 168                 if (pixels < 1.0) {
 169                         boolean prevEventVisibility = true;
 170                         // Get the visibility indication on previous event for
 171                         // this process
 172                         Vector<TimeRangeComponent> inMemEvents = localProcess
 173                                         .getTraceEvents();
 174                         if (inMemEvents.size() != 0) {
 175                                 TimeRangeComponent prevEvent = inMemEvents.get(inMemEvents
 176                                                 .size() - 1);
 177                                 prevEventVisibility = prevEvent.isVisible();
 178
 179                                 // if previous event visibility is false and the time span
 180                                 // between events less than two pixels, there is no need to
 181                                 // load it in memory i.e. not visible and a more indicator is
 182                                 // within two pixels.
 183                                 // return i.e. event discarded to free up memory
 184                                 Long eventSpan = stime - prevEvent.getStartTime();
 185                                 if (prevEventVisibility == false
 186                                                 && ((double) eventSpan * k) < 2.0) {
 187
 188                                         // discard the item
 189                                         params.incrementEventsDiscarded(ParamsUpdater.NOT_VISIBLE);
 190                                         return false;
 191
 192                                 }
 193                         }
 194
 195                         // if previous event is visible, set this one to not
 196                         // visible and continue
 197                         visible = false;
 198                 }
 199
 200                 // Create the time-range event
 201                 TimeRangeEvent time_window = new TimeRangeEvent(stime, etime,
 202                                 localProcess, Type.PROCESS_MODE, stateMode);
 203
 204                 time_window.setVisible(visible);
 205                 localProcess.getTraceEvents().add(time_window);
 206                 localProcess.setNext_good_time(etime);
 207
 208                 return false;
 209         }
 210
 211         /**
 212          * @param traceSt
 213          * @param evTime
 214          * @param process
 215          * @param localProcess
 216          * @param params
 217          * @return
 218          */
 219         protected boolean makeDraw(LttngTraceState traceSt, long evTime,
 220                         LttngProcessState process, TimeRangeEventProcess localProcess,
 221                         ParamsUpdater params) {
 222
 223                 // TmfTimestamp stime = process.getState().getChange_LttTime();
 224                 long stime = localProcess.getNext_good_time();
 225
 226                 String stateMode;
 227                 ProcessStatus procStatus = process.getState().getProc_status();
 228                 // Use Execution mode if process state is RUN otherwise use the actual
 229                 // process state,
 230                 // this selection will determine the actual color selected for the event
 231                 if (procStatus == ProcessStatus.LTTV_STATE_RUN) {
 232                         stateMode = process.getState().getExec_mode().getInName();
 233                 } else {
 234                         stateMode = procStatus.getInName();
 235                 }
 236
 237                 return makeDraw(traceSt, stime, evTime, localProcess, params, stateMode);
 238
 239         }
 240
 241 }