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annotate src/org/dancres/blitz/SearchTasks.java @ 0:3dc0c5604566

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Initial checkin of blitz 2.0 fcs - no installer yet.
author Dan Creswell <dan.creswell@gmail.com>
date Sat, 21 Mar 2009 11:00:06 +0000
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3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
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1 package org.dancres.blitz;
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2
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3 import org.dancres.blitz.stats.BlockingOpsStat;
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4 import org.dancres.blitz.stats.MissedOpsStat;
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5 import org.dancres.blitz.stats.Stat;
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6 import org.dancres.blitz.stats.StatGenerator;
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7 import org.dancres.blitz.stats.StatsBoard;
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8
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9 import edu.emory.mathcs.backport.java.util.concurrent.atomic.AtomicInteger;
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10 import edu.emory.mathcs.backport.java.util.concurrent.atomic.AtomicLong;
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11
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12 /**
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13 * Tracks the number ouf outstanding blocked operations (take and read)
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14 */
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15 class SearchTasks {
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16 private static SearchTasks theTasks = new SearchTasks();
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17
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18 private AtomicInteger theTakeCount = new AtomicInteger();
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19 private AtomicInteger theReadCount = new AtomicInteger();
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20 private AtomicLong theMissedTakes = new AtomicLong();
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21 private AtomicLong theMissedReads = new AtomicLong();
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22
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23 public static SearchTasks get() {
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24 return theTasks;
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25 }
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26
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27 private SearchTasks() {
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28 StatsBoard.get().add(new BlockingStatGenerator());
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29 StatsBoard.get().add(new MissedStatGenerator());
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30 }
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31
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32 public void add(MatchTask aTask) {
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33 if (aTask.getVisitor().isDeleter())
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34 theTakeCount.incrementAndGet();
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35 else
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36 theReadCount.incrementAndGet();
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37 }
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38
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39 public void remove(MatchTask aTask, boolean didMiss) {
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40 if (aTask.getVisitor().isDeleter()) {
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41 theTakeCount.decrementAndGet();
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42
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43 if (didMiss)
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44 theMissedTakes.incrementAndGet();
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45 } else {
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46 theReadCount.decrementAndGet();
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47
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48 if (didMiss)
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49 theMissedReads.incrementAndGet();
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50 }
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51 }
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52
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53 private class BlockingStatGenerator implements StatGenerator {
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54 private long theStatId = StatGenerator.UNSET_ID;
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55
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56 public long getId() {
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57 return theStatId;
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58 }
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59
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60 public void setId(long anId) {
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61 theStatId = anId;
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62 }
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63
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64 public Stat generate() {
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65 return new BlockingOpsStat(
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66 theStatId, theReadCount.intValue(), theTakeCount.intValue());
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67 }
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68 }
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69
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70 private class MissedStatGenerator implements StatGenerator {
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71 private long theStatId = StatGenerator.UNSET_ID;
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72
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73 public long getId() {
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74 return theStatId;
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75 }
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76
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77 public void setId(long anId) {
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78 theStatId = anId;
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79 }
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80
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81 public Stat generate() {
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82 return new MissedOpsStat(
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83 theStatId, theMissedReads.longValue(),
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84 theMissedTakes.longValue());
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85 }
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86 }
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87 }