C# AtomicBoolean.Set方法代码示例

        private void AssertConsistentYoungestChild(FacetLabel abPath, int abOrd, int abYoungChildBase1, int abYoungChildBase2, int retry, int numCategories)
        {
            var indexDir = new SlowRAMDirectory(-1, null); // no slowness for intialization
            var tw = new DirectoryTaxonomyWriter(indexDir);
            tw.AddCategory(new FacetLabel("a", "0"));
            tw.AddCategory(abPath);
            tw.Commit();

            var tr = new DirectoryTaxonomyReader(indexDir);
            for (int i = 0; i < numCategories; i++)
            {
                var cp = new FacetLabel("a", "b", Convert.ToString(i));
                tw.AddCategory(cp);
                Assert.AreEqual(TaxonomyReader.INVALID_ORDINAL, tr.GetOrdinal(cp), "Ordinal of " + cp + " must be invalid until Taxonomy Reader was refreshed");
            }
            tw.Dispose();

            var stop = new AtomicBoolean(false);
            Exception[] error = new Exception[] { null };
            int[] retrieval = new int[] { 0 };

            var thread = new ThreadAnonymousInnerClassHelper(this, abPath, abOrd, abYoungChildBase1, abYoungChildBase2, retry, tr, stop, error, retrieval);
            thread.Start();

            indexDir.SleepMillis = 1; // some delay for refresh
            var newTaxoReader = TaxonomyReader.OpenIfChanged(tr);
            if (newTaxoReader != null)
            {
                newTaxoReader.Dispose();
            }

            stop.Set(true);
            thread.Join();
            Assert.Null(error[0], "Unexpcted exception at retry " + retry + " retrieval " + retrieval[0] + ": \n" + stackTraceStr(error[0]));

            tr.Dispose();
        }

 public virtual void TestApplyDeletesOnFlush()
 {
     Directory dir = NewDirectory();
     // Cannot use RandomIndexWriter because we don't want to
     // ever call commit() for this test:
     AtomicInteger docsInSegment = new AtomicInteger();
     AtomicBoolean closing = new AtomicBoolean();
     AtomicBoolean sawAfterFlush = new AtomicBoolean();
     IndexWriter w = new IndexWriterAnonymousInnerClassHelper(this, dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random())).SetRAMBufferSizeMB(0.5).SetMaxBufferedDocs(-1).SetMergePolicy(NoMergePolicy.NO_COMPOUND_FILES).SetReaderPooling(false), docsInSegment, closing, sawAfterFlush);
     int id = 0;
     while (true)
     {
         StringBuilder sb = new StringBuilder();
         for (int termIDX = 0; termIDX < 100; termIDX++)
         {
             sb.Append(' ').Append(TestUtil.RandomRealisticUnicodeString(Random()));
         }
         if (id == 500)
         {
             w.DeleteDocuments(new Term("id", "0"));
         }
         Document doc = new Document();
         doc.Add(NewStringField("id", "" + id, Field.Store.NO));
         doc.Add(NewTextField("body", sb.ToString(), Field.Store.NO));
         w.UpdateDocument(new Term("id", "" + id), doc);
         docsInSegment.IncrementAndGet();
         // TODO: fix this test
         if (SlowFileExists(dir, "_0_1.del") || SlowFileExists(dir, "_0_1.liv"))
         {
             if (VERBOSE)
             {
                 Console.WriteLine("TEST: deletes created @ id=" + id);
             }
             break;
         }
         id++;
     }
     closing.Set(true);
     Assert.IsTrue(sawAfterFlush.Get());
     w.Dispose();
     dir.Dispose();
 }

        public virtual void TestAccquireReleaseRace()
        {
            DocumentsWriterStallControl ctrl = new DocumentsWriterStallControl();
            ctrl.UpdateStalled(false);
            AtomicBoolean stop = new AtomicBoolean(false);
            AtomicBoolean checkPoint = new AtomicBoolean(true);

            int numStallers = AtLeast(1);
            int numReleasers = AtLeast(1);
            int numWaiters = AtLeast(1);
            var sync = new Synchronizer(numStallers + numReleasers, numStallers + numReleasers + numWaiters);
            var threads = new ThreadClass[numReleasers + numStallers + numWaiters];
            IList<Exception> exceptions = new SynchronizedCollection<Exception>();
            for (int i = 0; i < numReleasers; i++)
            {
                threads[i] = new Updater(stop, checkPoint, ctrl, sync, true, exceptions);
            }
            for (int i = numReleasers; i < numReleasers + numStallers; i++)
            {
                threads[i] = new Updater(stop, checkPoint, ctrl, sync, false, exceptions);
            }
            for (int i = numReleasers + numStallers; i < numReleasers + numStallers + numWaiters; i++)
            {
                threads[i] = new Waiter(stop, checkPoint, ctrl, sync, exceptions);
            }

            Start(threads);
            int iters = AtLeast(10000);
            float checkPointProbability = TEST_NIGHTLY ? 0.5f : 0.1f;
            for (int i = 0; i < iters; i++)
            {
                if (checkPoint.Get())
                {
                    Assert.IsTrue([email protected](new TimeSpan(0, 0, 0, 10)), "timed out waiting for update threads - deadlock?");
                    if (exceptions.Count > 0)
                    {
                        foreach (Exception throwable in exceptions)
                        {
                            Console.WriteLine(throwable.ToString());
                            Console.Write(throwable.StackTrace);
                        }
                        Assert.Fail("got exceptions in threads");
                    }

                    if (ctrl.HasBlocked() && ctrl.Healthy)
                    {
                        AssertState(numReleasers, numStallers, numWaiters, threads, ctrl);
                    }

                    checkPoint.Set(false);
                    sync.Waiter.countDown();
                    [email protected]();
                }
                Assert.IsFalse(checkPoint.Get());
                Assert.AreEqual(0, sync.Waiter.Remaining);
                if (checkPointProbability >= (float)Random().NextDouble())
                {
                    sync.Reset(numStallers + numReleasers, numStallers + numReleasers + numWaiters);
                    checkPoint.Set(true);
                }
            }
            if (!checkPoint.Get())
            {
                sync.Reset(numStallers + numReleasers, numStallers + numReleasers + numWaiters);
                checkPoint.Set(true);
            }

            Assert.IsTrue([email protected](new TimeSpan(0, 0, 0, 10)));
            AssertState(numReleasers, numStallers, numWaiters, threads, ctrl);
            checkPoint.Set(false);
            stop.Set(true);
            sync.Waiter.countDown();
            [email protected]();

            for (int i = 0; i < threads.Length; i++)
            {
                ctrl.UpdateStalled(false);
                threads[i].Join(2000);
                if (threads[i].IsAlive && threads[i] is Waiter)
                {
                    if (threads[i].State == ThreadState.WaitSleepJoin)
                    {
                        Assert.Fail("waiter is not released - anyThreadsStalled: " + ctrl.AnyStalledThreads());
                    }
                }
            }
        }

        public virtual void TestNRTOpenExceptions()
        {
            // LUCENE-5262: test that several failed attempts to obtain an NRT reader
            // don't leak file handles.
            MockDirectoryWrapper dir = (MockDirectoryWrapper)GetAssertNoDeletesDirectory(NewMockDirectory());
            AtomicBoolean shouldFail = new AtomicBoolean();
            dir.FailOn(new FailureAnonymousInnerClassHelper(shouldFail));

            IndexWriterConfig conf = NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random()));
            conf.SetMergePolicy(NoMergePolicy.COMPOUND_FILES); // prevent merges from getting in the way
            IndexWriter writer = new IndexWriter(dir, conf);

            // create a segment and open an NRT reader
            writer.AddDocument(new Document());
            writer.Reader.Dispose();

            // add a new document so a new NRT reader is required
            writer.AddDocument(new Document());

            // try to obtain an NRT reader twice: first time it fails and closes all the
            // other NRT readers. second time it fails, but also fails to close the
            // other NRT reader, since it is already marked closed!
            for (int i = 0; i < 2; i++)
            {
                shouldFail.Set(true);
                try
                {
                    writer.Reader.Dispose();
                }
                catch (FakeIOException e)
                {
                    // expected
                    if (VERBOSE)
                    {
                        Console.WriteLine("hit expected fake IOE");
                    }
                }
            }

            writer.Dispose();
            dir.Dispose();
        }

        public void TestConcurrentAccess()
        {
            assertEquals(1, searchers.Count);
            using (IndexReader r = DirectoryReader.Open(userindex))
            {
                spellChecker.ClearIndex();
                assertEquals(2, searchers.Count);
                Addwords(r, spellChecker, "field1");
                assertEquals(3, searchers.Count);
                int num_field1 = this.NumDoc();
                Addwords(r, spellChecker, "field2");
                assertEquals(4, searchers.Count);
                int num_field2 = this.NumDoc();
                assertEquals(num_field2, num_field1 + 1);
                int numThreads = 5 + Random().nextInt(5);
                SpellCheckWorker[] workers = new SpellCheckWorker[numThreads];
                var stop = new AtomicBoolean(false);
                for (int i = 0; i < numThreads; i++)
                {
                    SpellCheckWorker spellCheckWorker = new SpellCheckWorker(this, r, stop);
                    workers[i] = spellCheckWorker;
                    spellCheckWorker.Start();
                }
                int iterations = 5 + Random().nextInt(5);
                for (int i = 0; i < iterations; i++)
                {
                    Thread.Sleep(100);
                    // concurrently reset the spell index
                    spellChecker.SpellIndex = (this.spellindex);
                    // for debug - prints the internal open searchers
                    // showSearchersOpen();
                }

                spellChecker.Dispose();
                stop.Set(true);

                // wait for 60 seconds - usually this is very fast but coverage runs could take quite long
                //executor.awaitTermination(60L, TimeUnit.SECONDS);
                foreach (SpellCheckWorker worker in workers)
                {
                    worker.Join((long)TimeSpan.FromSeconds(60).TotalMilliseconds);
                }

                for (int i = 0; i < workers.Length; i++)
                {
                    assertFalse(string.Format(CultureInfo.InvariantCulture, "worker thread {0} failed \n" + workers[i].Error, i), workers[i].Error != null);
                    assertTrue(string.Format(CultureInfo.InvariantCulture, "worker thread {0} is still running but should be terminated", i), workers[i].terminated);
                }
                // 4 searchers more than iterations
                // 1. at creation
                // 2. clearIndex()
                // 2. and 3. during addwords
                assertEquals(iterations + 4, searchers.Count);
                AssertSearchersClosed();
            }
        }