public async Task CouldCancelCursor() { var sm = new SortedMap <int, int>(); var cursor = sm.GetAsyncEnumerator(); var completable = cursor as IAsyncCompletable; var t = Task.Run(async() => { try { await cursor.MoveNextAsync(); Assert.Fail(); } catch (Exception ex) { Assert.True(true); } }); Thread.Sleep(100); completable?.TryComplete(true); t.Wait(); }
public void DeadCursorDoesNotCauseEndlessLoopInNotifyUpdate() { var sm = new SortedMap <int, int>(); sm.Add(1, 1); var cursor = sm.GetAsyncEnumerator(); Assert.True(cursor.MoveNext()); Assert.False(cursor.MoveNext()); cursor.MoveNextAsync(); cursor = default; GC.Collect(2, GCCollectionMode.Forced, true); GC.Collect(2, GCCollectionMode.Forced, true); //var t = Task.Run(() => cursor.MoveNextAsync(cts.Token)); sm.Add(2, 2); sm.Add(3, 3); Assert.True(sm.Count == 3); }
public void CancelledCursorDoesntCauseEndlessLoopInNotifyUpdate() { var sm = new SortedMap <int, int>(); sm.Add(1, 1); var cursor = sm.GetAsyncEnumerator(); Assert.True(cursor.MoveNext()); Assert.False(cursor.MoveNext()); cursor.MoveNextAsync(); sm.Add(2, 2); sm.Add(3, 3); Assert.True(sm.Count == 3); }
public async Task CouldEnumerateSMUsingCursor() { var map = new SortedMap <int, int>(); var count = 1_000_000; for (int i = 0; i < count; i++) { await map.TryAdd(i, i); } #pragma warning disable HAA0401 // Possible allocation of reference type enumerator var ae = map.GetAsyncEnumerator(); #pragma warning restore HAA0401 // Possible allocation of reference type enumerator var t = Task.Run(async() => { using (Benchmark.Run("SCM.AsyncEnumerator", count)) { var cnt = 0; while (await ae.MoveNextAsync()) { cnt++; } await ae.DisposeAsync(); Assert.AreEqual(count * 2, cnt); } Benchmark.Dump(); }); for (int i = count; i < count * 2; i++) { await map.TryAdd(i, i); } await map.Complete(); t.Wait(); }
public async Task NotificationWorksWhenCursorIsNotWating() { var sm = new SortedMap <int, int>(); sm.Add(1, 1); sm.Add(2, 2); // sm.Flush(); var cursor = sm.GetAsyncEnumerator(); Assert.True(await cursor.MoveNextAsync()); Assert.True(await cursor.MoveNextAsync()); Assert.IsTrue(cursor.MovePrevious()); await sm.TryAdd(3, 3); await Task.Delay(250); Assert.AreEqual(1, cursor.CurrentKey); Assert.AreEqual(1, cursor.CurrentValue); }
public async Task CouldEnumerateSCMUsingCursor() { Settings.SCMDefaultChunkLength = Settings.SCMDefaultChunkLength * 4; var scm = new SortedMap <int, int>(); var count = 1_000_000; // Settings.SCMDefaultChunkLength - 1; for (int i = 0; i < count; i++) { await scm.TryAdd(i, i); } Console.WriteLine("Added first half"); #pragma warning disable HAA0401 // Possible allocation of reference type enumerator var ae = scm.GetAsyncEnumerator(); #pragma warning restore HAA0401 // Possible allocation of reference type enumerator var t = Task.Run(async() => { using (Benchmark.Run("SCM.AsyncEnumerator", count)) { try { var cnt = 0; while (await ae.MoveNextAsync()) { if (cnt != ae.Current.Key) { ThrowHelper.ThrowInvalidOperationException(); } cnt++; } await ae.DisposeAsync(); } catch (Exception ex) { Console.WriteLine("EXCEPTION: " + ex.ToString()); throw; } // Assert.AreEqual(scm.Count, cnt); } Benchmark.Dump(); }); // Thread.Sleep(1000); for (int i = count; i < count * 2; i++) { await scm.TryAdd(i, i); //Thread.SpinWait(50); } // Thread.Sleep(2000); await scm.Complete(); t.Wait(); }