private IObservable<string> detect(string text)
{
var subject = new AsyncSubject<string>();
string detectUri = String.Format(GetDetectUri(text), appId, HttpUtility.HtmlEncode(text));
var wc = new WebClient();
wc.OpenReadCompleted += new OpenReadCompletedEventHandler((obj, args) =>
{
if (args.Error != null)
{
subject.OnError(args.Error);
}
else
{
if (!args.Cancelled)
{
var xdoc = XDocument.Load(args.Result);
subject.OnNext(xdoc.Root.Value);
}
subject.OnCompleted();
}
});
wc.OpenReadAsync(new Uri(detectUri));
return subject;
}
public void each_subscriber_is_scheduled_individually()
{
ManualScheduler scheduler = new ManualScheduler();
AsyncSubject<int> subject = new AsyncSubject<int>(scheduler);
StatsObserver<int> statsA = new StatsObserver<int>();
StatsObserver<int> statsB = new StatsObserver<int>();
subject.OnNext(1);
subject.OnNext(2);
subject.OnNext(3);
subject.OnCompleted();
subject.Subscribe(statsA);
subject.Subscribe(statsB);
scheduler.RunNext();
Assert.IsTrue(statsA.NextCalled);
Assert.IsFalse(statsB.NextCalled);
scheduler.RunNext();
Assert.IsTrue(statsB.NextCalled);
}
public static IObservable<Unit> WriteAsync(this Stream This, byte[] data, int start, int length)
{
var ret = new AsyncSubject<Unit>();
try
{
This.BeginWrite(data, start, length, result =>
{
try
{
This.EndWrite(result);
ret.OnNext(Unit.Default);
ret.OnCompleted();
}
catch (Exception ex)
{
ret.OnError(ex);
}
}, null);
}
catch (Exception ex)
{
ret.OnError(ex);
}
return ret;
}
public void UploadPictureAsyncBasicTest()
{
Flickr f = TestData.GetAuthInstance();
var w = new AsyncSubject<FlickrResult<string>>();
byte[] imageBytes = TestData.TestImageBytes;
var s = new MemoryStream(imageBytes);
s.Position = 0;
string title = "Test Title";
string desc = "Test Description\nSecond Line";
string tags = "testtag1,testtag2";
f.UploadPictureAsync(s, "Test.jpg", title, desc, tags, false, false, false, ContentType.Other, SafetyLevel.Safe, HiddenFromSearch.Visible,
r => { w.OnNext(r); w.OnCompleted(); });
var result = w.Next().First();
if (result.HasError)
{
throw result.Error;
}
Assert.IsNotNull(result.Result);
Console.WriteLine(result.Result);
// Clean up photo
f.PhotosDelete(result.Result);
}
public void PhotosetsGetContextAsyncTest()
{
Flickr f = TestData.GetInstance();
var photosetId = "72157626420254033"; // Beamish
var photos = f.PhotosetsGetPhotos(photosetId, 1, 100);
var firstPhoto = photos.First();
var lastPhoto = photos.Last();
var w = new AsyncSubject<FlickrResult<Context>>();
f.PhotosetsGetContextAsync(firstPhoto.PhotoId, photosetId, r => { w.OnNext(r); w.OnCompleted(); });
var result = w.Next().First();
Assert.IsFalse(result.HasError);
var context = result.Result;
Assert.IsNull(context.PreviousPhoto, "As this is the first photo the previous photo should be null.");
Assert.IsNotNull(context.NextPhoto, "As this is the first photo the next photo should not be null.");
w = new AsyncSubject<FlickrResult<Context>>();
f.PhotosetsGetContextAsync(lastPhoto.PhotoId, photosetId, r => { w.OnNext(r); w.OnCompleted(); });
result = w.Next().First();
Assert.IsFalse(result.HasError);
context = result.Result;
Assert.IsNull(context.NextPhoto, "As this is the last photo the next photo should be null.");
Assert.IsNotNull(context.PreviousPhoto, "As this is the last photo the previous photo should not be null.");
}
public void PhotosetsGeneralAsyncTest()
{
Flickr f = TestData.GetAuthInstance();
var photoId1 = "7519320006"; // Tree/Write/Wall
var photoId2 = "7176125763"; // Rainbow Rose
var w = new AsyncSubject<FlickrResult<Photoset>>();
f.PhotosetsCreateAsync("Test Photoset", photoId1, r => { w.OnNext(r); w.OnCompleted(); });
var photosetResult = w.Next().First();
Assert.IsFalse(photosetResult.HasError);
var photoset = photosetResult.Result;
try
{
var w2 = new AsyncSubject<FlickrResult<NoResponse>>();
f.PhotosetsEditMetaAsync(photoset.PhotosetId, "New Title", "New Description", r => { w2.OnNext(r); w2.OnCompleted(); });
var noResponseResult = w2.Next().First();
Assert.IsFalse(noResponseResult.HasError);
var w3 = new AsyncSubject<FlickrResult<NoResponse>>();
f.PhotosetsAddPhotoAsync(photoset.PhotosetId, photoId2, r => { w3.OnNext(r); w3.OnCompleted(); });
noResponseResult = w3.Next().First();
Assert.IsFalse(noResponseResult.HasError);
}
finally
{
var w4 = new AsyncSubject<FlickrResult<NoResponse>>();
// Clean up and delete photoset
f.PhotosetsDeleteAsync(photoset.PhotosetId, r => { w4.OnNext(r); w4.OnCompleted(); });
var noResponseResult = w4.Next().First();
}
}
public void PhotosGetCountsAsyncTest()
{
DateTime date1 = DateTime.Today.AddMonths(-12);
DateTime date2 = DateTime.Today.AddMonths(-6);
DateTime date3 = DateTime.Today;
DateTime[] uploadDates = new DateTime[] { date1, date2, date3 };
Flickr f = TestData.GetAuthInstance();
var w = new AsyncSubject<FlickrResult<PhotoCountCollection>>();
f.PhotosGetCountsAsync(uploadDates, false, r => { w.OnNext(r); w.OnCompleted(); });
var result = w.Next().First();
Assert.IsFalse(result.HasError);
var counts = result.Result;
Assert.AreEqual(2, counts.Count, "Should be two counts returned.");
var count1 = counts[0];
Assert.AreEqual(date1, count1.FromDate);
Assert.AreEqual(date2, count1.ToDate);
var count2 = counts[1];
Assert.AreEqual(date2, count2.FromDate);
Assert.AreEqual(date3, count2.ToDate);
}
static IEnumerable<Task> CreateConnectableObservables()
{
var subject = new AsyncSubject<Unit>();
yield return Observable.Defer(() => Observable.Start(() => Unit.Default))
.Multicast(subject)
.RefCount()
.ToTask();
}
///<summary>
///With AsyncSubject<T> ,the subscriber will only get all the last publication made.
///Simply, AsyncSubject has a one value buffer. The publication is made only on the OnCompleted() call.
///</summary>
private static void AsyncSubject()
{
var subject = new AsyncSubject<string>();
subject.OnNext("a");
subject.OnNext("b");
subject.OnNext("c");
subject.Subscribe(Console.WriteLine);
subject.OnCompleted();
}
public JobHost()
{
// Job container.
Jobs = new Dictionary<string, Job>();
// Signal
_shutdownSignal = new AsyncSubject<Unit>();
_shutdownSignal.OnNext(Unit.Default);
}
public static void Run()
{
var subject = new AsyncSubject<string>();
subject.OnNext("a");
WriteSequenceToConsole(subject);
subject.OnNext("b");
subject.OnNext("c");
// subject.OnCompleted();
Console.ReadLine();
}
public void PhotosGetExifAsyncTest()
{
Flickr f = TestData.GetInstance();
var w = new AsyncSubject<FlickrResult<ExifTagCollection>>();
f.PhotosGetExifAsync(TestData.PhotoId, r => { w.OnNext(r); w.OnCompleted(); });
var result = w.Next().First();
Assert.IsFalse(result.HasError);
}
public void Infinite()
{
var scheduler = new TestScheduler();
var xs = scheduler.CreateHotObservable(
OnNext(70, 1),
OnNext(110, 2),
OnNext(220, 3),
OnNext(270, 4),
OnNext(340, 5),
OnNext(410, 6),
OnNext(520, 7),
OnNext(630, 8),
OnNext(710, 9),
OnNext(870, 10),
OnNext(940, 11),
OnNext(1020, 12)
);
var subject = default(AsyncSubject<int>);
var subscription = default(IDisposable);
var results1 = scheduler.CreateObserver<int>();
var subscription1 = default(IDisposable);
var results2 = scheduler.CreateObserver<int>();
var subscription2 = default(IDisposable);
var results3 = scheduler.CreateObserver<int>();
var subscription3 = default(IDisposable);
scheduler.ScheduleAbsolute(100, () => subject = new AsyncSubject<int>());
scheduler.ScheduleAbsolute(200, () => subscription = xs.Subscribe(subject));
scheduler.ScheduleAbsolute(1000, () => subscription.Dispose());
scheduler.ScheduleAbsolute(300, () => subscription1 = subject.Subscribe(results1));
scheduler.ScheduleAbsolute(400, () => subscription2 = subject.Subscribe(results2));
scheduler.ScheduleAbsolute(900, () => subscription3 = subject.Subscribe(results3));
scheduler.ScheduleAbsolute(600, () => subscription1.Dispose());
scheduler.ScheduleAbsolute(700, () => subscription2.Dispose());
scheduler.ScheduleAbsolute(800, () => subscription1.Dispose());
scheduler.ScheduleAbsolute(950, () => subscription3.Dispose());
scheduler.Start();
results1.Messages.AssertEqual(
);
results2.Messages.AssertEqual(
);
results3.Messages.AssertEqual(
);
}
public void PhotosAddTagTest()
{
string photoId = "4499284951";
string tag = "testx";
var w = new AsyncSubject<FlickrResult<NoResponse>>();
AuthInstance.PhotosAddTagsAsync(photoId, tag, r => { w.OnNext(r); w.OnCompleted(); });
var result = w.Next().First();
}
public void PhotosGetContactsPhotosAsyncTest()
{
var w = new AsyncSubject<FlickrResult<PhotoCollection>>();
AuthInstance.PhotosGetContactsPhotosAsync(50, true, true, true, PhotoSearchExtras.All, r => { w.OnNext(r); w.OnCompleted(); });
var result = w.Next().First();
Assert.IsFalse(result.HasError);
Assert.IsNotNull(result.Result);
Assert.IsTrue(result.Result.Count > 0, "Should return some photos.");
}
public void StatsGetPhotosetDomainsAsyncTest()
{
Flickr f = TestData.GetAuthInstance();
DateTime d = DateTime.Today.AddDays(-7);
var w = new AsyncSubject<FlickrResult<StatDomainCollection>>();
f.StatsGetPhotosetDomainsAsync(d, 1, 25, r => { w.OnNext(r); w.OnCompleted(); });
var result = w.Next().First();
Assert.IsFalse(result.HasError);
}
public void PhotosGetRecentAsyncTest()
{
Flickr f = TestData.GetInstance();
var w = new AsyncSubject<FlickrResult<PhotoCollection>>();
f.PhotosGetRecentAsync(1, 50, PhotoSearchExtras.All, r => { w.OnNext(r); w.OnCompleted(); });
var result = w.Next().First();
Assert.IsFalse(result.HasError);
Assert.IsNotNull(result.Result);
Assert.IsTrue(result.Result.Count > 0, "Should return some photos.");
}
public void PhotosSearchAsyncBasicTest()
{
var o = new PhotoSearchOptions();
o.Tags = "microsoft";
var w = new AsyncSubject<FlickrResult<PhotoCollection>>();
Instance.PhotosSearchAsync(o, r => { w.OnNext(r); w.OnCompleted(); });
var result = w.Next().First();
Assert.IsTrue(result.Result.Total > 0);
}
public JobHost(IJobEventContext eventContext)
{
// Job container.
Jobs = new Dictionary<string, Job>();
// Store the event context that will be used to track jobs and tasks.
_eventContext = eventContext;
// Signal
_shutdownSignal = new AsyncSubject<Unit>();
_shutdownSignal.OnNext(Unit.Default);
}
public void Run()
{
ConsoleUtility.PrintSuccess(string.Format("Rx AsyncSubject example"));
var topic = new AsyncSubject<Price>();
WriteToConsole(topic);
topic.OnNext(new Price(1, 99, 100, 101));
topic.OnNext(new Price(1, 98, 99, 100));
topic.OnNext(new Price(1, 97, 98, 99));
topic.OnCompleted();
}
public IObservable<Unit> Speak(string speechString)
{
var id = Interlocked.Increment(ref this.nextId);
var result = new AsyncSubject<Unit>();
inFlightSpeech.TryAdd(id, result);
var parameters = new Dictionary<string, string>
{
[TextToSpeech.Engine.KeyParamUtteranceId] = id.ToString(),
[TextToSpeech.Engine.KeyFeatureNetworkSynthesis] = "true"
};
this.textToSpeech.Speak(speechString, QueueMode.Add, parameters);
return result;
}
private void Start()
{
//BehaviorSubjectは初期値を設定できる
asyncSubject = new AsyncSubject<int>();
/*
Subscribe後にOnNextを繰り返しても値が発行されず、OnCompletedを実行した際に初めてOnNextが通知されるところ確認しよう
また、その時のOnNextの値は最後の値１つだけになっていることも確認しよう
*/
// Subscribeボタンが押されたらSubjectをSubscribeしてresultTextに表示する
subscribeButton.OnClickAsObservable().Subscribe(_ =>
{
if (asyncSubject != null)
{
asyncSubject.Subscribe(
time => resultText.text += time.ToString() + " ", //OnNext
() => resultText.text += "OnCompleted "); //OnCompleted
}
});
// OnNextボタンが押されたら今が何度目のOnNextであるかを発行する
onNextButton.OnClickAsObservable().Subscribe(_ =>
{
if (asyncSubject != null)
{
asyncSubject.OnNext(++onNextCount);
}
});
// OnCompletedボタンが押されたらOnCompletedを発行する
onCompletedButton.OnClickAsObservable().Subscribe(_ =>
{
if (asyncSubject != null)
{
asyncSubject.OnCompleted();
}
});
// Resetボタンが押されたら全体を初期化する
resetButton.OnClickAsObservable().Subscribe(_ =>
{
if (asyncSubject != null)
{
asyncSubject.OnCompleted();
}
asyncSubject = new AsyncSubject<int>();
resultText.text = "";
onNextCount = 0;
});
}
public void StatsGetCollectionStatsAsyncTest()
{
Flickr f = TestData.GetAuthInstance();
var collection = f.CollectionsGetTree().First();
DateTime d = DateTime.Today.AddDays(-7);
var w = new AsyncSubject<FlickrResult<Stats>>();
f.StatsGetCollectionStatsAsync(d, collection.CollectionId, r => { w.OnNext(r); w.OnCompleted(); });
var result = w.Next().First();
Assert.IsFalse(result.HasError);
}
public void AuthGetFrobAsyncTest()
{
var w = new AsyncSubject<FlickrResult<string>>();
TestData.GetOldSignedInstance().AuthGetFrobAsync(r => { w.OnNext(r); w.OnCompleted(); });
var frobResult = w.Next().First();
Assert.IsFalse(frobResult.HasError);
string frob = frobResult.Result;
Assert.IsNotNull(frob, "frob should not be null.");
Assert.AreNotEqual("", frob, "Frob should not be zero length string.");
}
public void StatsGetPhotoStatsAsyncTest()
{
Flickr.CacheDisabled = true;
Flickr f = TestData.GetAuthInstance();
DateTime d = DateTime.Today.AddDays(-7);
var w = new AsyncSubject<FlickrResult<Stats>>();
f.StatsGetPhotoStatsAsync(d, "7176125763", r => { w.OnNext(r); w.OnCompleted(); });
var result = w.Next().First();
if (result.HasError) throw result.Error;
Assert.IsFalse(result.HasError);
}
public void PhotosAddTagTest()
{
Flickr f = TestData.GetAuthInstance();
string photoId = "4499284951";
string tag = "testx";
var w = new AsyncSubject<FlickrResult<NoResponse>>();
f.PhotosAddTagsAsync(photoId, tag, r => { w.OnNext(r); w.OnCompleted(); });
//var result = w.Next().First();
w.Next().First();
//Assert.IsFalse(result.HasError);
}
public void PhotosSearchAsyncShowerTest()
{
var o = new PhotoSearchOptions();
o.UserId = "78507951@N00";
o.Tags = "shower";
o.SortOrder = PhotoSearchSortOrder.DatePostedDescending;
o.PerPage = 1000;
o.TagMode = TagMode.AllTags;
o.Extras = PhotoSearchExtras.All;
var w = new AsyncSubject<FlickrResult<PhotoCollection>>();
AuthInstance.PhotosSearchAsync(o, r => { w.OnNext(r); w.OnCompleted(); });
var result = w.Next().First();
Assert.IsTrue(result.Result.Total > 0);
}
public Task Wait(string key)
{
lock (this.keyedSemaphore)
{
AsyncSubject<Unit> semaphore;
if (this.keyedSemaphore.TryGetValue(key, out semaphore))
{
return semaphore.ToTask();
}
semaphore = new AsyncSubject<Unit>();
this.keyedSemaphore.Add(key, semaphore);
return Task.Delay(0);
}
}
public IObservable<TwitterSearchStatus> Search(string query, int page, int rpp)
{
var subject = new AsyncSubject<IEnumerable<TwitterSearchStatus>>();
this.service.Search(query, page, rpp, (tr, res) =>
{
if (res.InnerException == null)
{
subject.OnNext(tr.Statuses);
subject.OnCompleted();
}
else
{
subject.OnError(res.InnerException);
}
});
return subject.AsObservable().SelectMany(r => r);
}
public static IObservable <T> ToObservable <T>(this UniTask <T> task)
{
if (task.Status.IsCompleted())
{
try
{
return(new ReturnObservable <T>(task.GetAwaiter().GetResult()));
}
catch (Exception ex)
{
return(new ThrowObservable <T>(ex));
}
}
var subject = new AsyncSubject <T>();
Fire(subject, task).Forget();
return(subject);
}
private static OperationQueueItem GroupUnrelatedDeletes(IEnumerable <OperationQueueItem> unrelatedDeletes)
{
var subj = new AsyncSubject <Unit>();
var operationQueueItems = unrelatedDeletes.ToList();
if (operationQueueItems.Count == 1)
{
return(operationQueueItems[0]);
}
var elements = operationQueueItems.SelectMany(x =>
{
subj.Subscribe(x.CompletionAsUnit);
return(x.ParametersAsKeys);
}).ToList();
return(OperationQueueItem.CreateInvalidate(
OperationType.BulkInvalidateSqliteOperation, elements, subj));
}
public static void AsyncSubject_OnlyPubWhenCompleted()
{
var recorder = new RecordObserver();
ISubject <int> subject = new AsyncSubject <int>();
subject.Subscribe(recorder);
subject.OnNext(1);
subject.OnNext(2);
Assert.IsFalse(recorder.LastValue.HasValue);
Assert.AreEqual(0, recorder.NumOfNextInvoke);
subject.OnCompleted();
Assert.IsTrue(recorder.LastValue.HasValue);
Assert.AreEqual(2, recorder.LastValue);
Assert.IsTrue(recorder.IsCompleted);
Assert.AreEqual(1, recorder.NumOfNextInvoke);
}
public virtual AsyncSubject <TSource> RunAsync <TSource>(IConnectableObservable <TSource> source, CancellationToken cancellationToken)
{
var s = new AsyncSubject <TSource>();
if (cancellationToken.IsCancellationRequested)
{
return(Cancel(s, cancellationToken));
}
var d = source.SubscribeSafe(s);
var c = source.Connect();
if (cancellationToken.CanBeCanceled)
{
RegisterCancelation(s, StableCompositeDisposable.Create(d, c), cancellationToken);
}
return(s);
}
public SocketServer(IExecutor executor, IPEndPoint bindEndPoint)
{
Ensure.IsNotNull(executor, "executor");
Ensure.IsNotNull(bindEndPoint, "bindEndPoint");
this.executor = executor;
this.started = new AsyncSubject <Unit>();
this.stopped = new AsyncSubject <Unit>();
this.connected = new Subject <SocketClient>();
if (bindEndPoint.AddressFamily == AddressFamily.InterNetworkV6)
{
if (!Socket.OSSupportsIPv6)
{
throw new InvalidOperationException("OS does not support IPv6");
}
this.socket = new Socket(AddressFamily.InterNetworkV6,
SocketType.Stream,
ProtocolType.Tcp);
#if !MONO
if (IsWinVistaOrHigher() || IsNotWindows())
{
try
{
this.socket.SetSocketOption(SocketOptionLevel.IPv6, SocketOptionName.IPv6Only, false);
}
catch { }
}
#endif
}
else
{
this.socket = new Socket(AddressFamily.InterNetwork,
SocketType.Stream,
ProtocolType.Tcp);
}
this.acceptArgs = new SocketAsyncEventArgs();
this.bindEndPoint = bindEndPoint;
this.acceptArgs.Completed += SocketAccepted;
}
public ActorClientProxyTemplate(IPEndPoint endPoint)
{
this.endPoint = endPoint;
this.disconnected = false;
this.disconnectedSubject = new AsyncSubject <Exception>();
serializer = new ProtoBufStacksSerializer();
replyHandlersByRequest = new Dictionary <long, Action <MemoryStream, Exception> >();
obsHandlers = new Dictionary <string, Action <MemoryStream> >();
exec = new ActionBlockExecutor();
exec.Error += ExecutionError;
client = new ActorRemoteMessageClient(
new FramedClient(
new SocketClient(exec)));
client.MessageReceived += MessageReceived;
client.ObsMessageReceived += ObsMessageReceived;
client.Disconnected.Subscribe(HandleDisconnection);
}
public SocketServer(IExecutor executor, IPEndPoint bindEndPoint)
{
Ensure.IsNotNull(executor, "executor");
Ensure.IsNotNull(bindEndPoint, "bindEndPoint");
this.executor = executor;
this.started = new AsyncSubject<Unit>();
this.stopped = new AsyncSubject<Unit>();
this.connected = new Subject<SocketClient>();
if (bindEndPoint.AddressFamily == AddressFamily.InterNetworkV6)
{
if (!Socket.OSSupportsIPv6)
{
throw new InvalidOperationException("OS does not support IPv6");
}
this.socket = new Socket(AddressFamily.InterNetworkV6,
SocketType.Stream,
ProtocolType.Tcp);
#if !MONO
if (IsWinVistaOrHigher() || IsNotWindows())
{
try
{
this.socket.SetSocketOption(SocketOptionLevel.IPv6, SocketOptionName.IPv6Only, false);
}
catch { }
}
#endif
}
else
{
this.socket = new Socket(AddressFamily.InterNetwork,
SocketType.Stream,
ProtocolType.Tcp);
}
this.acceptArgs = new SocketAsyncEventArgs();
this.bindEndPoint = bindEndPoint;
this.acceptArgs.Completed += SocketAccepted;
}
public AsyncInfoToObservableBridge(IAsyncInfo info, Action <IAsyncInfo, Action <IAsyncInfo, AsyncStatus> > onCompleted, Func <IAsyncInfo, TResult> getResult, Action <IAsyncInfo, Action <IAsyncInfo, TProgress> > onProgress, IProgress <TProgress> progress, bool multiValue)
{
_onCompleted = onCompleted;
_getResult = getResult;
_subject = new AsyncSubject <TResult>();
onProgress?.Invoke(info, (iai, p) =>
{
if (multiValue && getResult != null)
{
_subject.OnNext(getResult(iai));
}
progress?.Report(p);
});
Done(info, info.Status, true);
}
public virtual AsyncSubject <TSource> RunAsync <TSource>(IConnectableObservable <TSource> source, CancellationToken cancellationToken)
{
var s = new AsyncSubject <TSource>();
var cancel = new Action(() => s.OnError(new OperationCanceledException()));
if (cancellationToken.IsCancellationRequested)
{
cancel();
return(s);
}
var d = new CompositeDisposable(source.SubscribeSafe(s), source.Connect());
cancellationToken.Register(d.Dispose);
cancellationToken.Register(cancel);
return(s);
}
/// <summary>
/// Ideally returns IObservabl[Unit] is best but UniRx.Async does not have Unit so return AsyncUnit instead.
/// </summary>
public static IObservable <AsyncUnit> ToObservable(this UniTask task)
{
if (task.IsCompleted)
{
try
{
return(new ReturnObservable <AsyncUnit>(AsyncUnit.Default));
}
catch (Exception ex)
{
return(new ThrowObservable <AsyncUnit>(ex));
}
}
var subject = new AsyncSubject <AsyncUnit>();
Fire(subject, task).Forget();
return(subject);
}
public static IObservable <RestResponse <T> > RequestAsync <T>(this RestClient This, RestRequest request)
{
var ret = new AsyncSubject <RestResponse <T> >();
This.BeginRequest <T>(request, (rq, resp, state) =>
{
try
{
ret.OnNext(resp);
ret.OnCompleted();
}
catch (Exception ex)
{
ret.OnError(ex);
}
});
return(ret);
}
/// <summary>
/// Allows explicitly requesting channel to connect without starting an RPC.
/// Returned task completes once state Ready was seen. If the deadline is reached,
/// or channel enters the Shutdown state, the task is cancelled.
/// There is no need to call this explicitly unless your use case requires that.
/// Starting an RPC on a new channel will request connection implicitly.
/// </summary>
/// <param name="deadline">The deadline. <c>null</c> indicates no deadline.</param>
public IObservable <Unit> ConnectAsync(DateTime?deadline = null)
{
var currentState = GetConnectivityState(true);
if (currentState == ChannelState.Ready)
{
return(Observable.ReturnUnit());
}
if (currentState == ChannelState.Shutdown)
{
return(Observable.Throw <Unit>(new OperationCanceledException("Channel has reached Shutdown state.")));
}
var subject = new AsyncSubject <Unit>();
TryWaitForStateChangedAsync(subject, currentState, deadline);
return(subject);
}
/// <summary>
/// The ask to observable.
/// </summary>
/// <param name="question">
/// The question.
/// </param>
/// <param name="buttons">
/// The buttons.
/// </param>
/// <returns>
/// The <see cref="IObservable"/>.
/// </returns>
public IObservable <MessageBoxResult> AskToObservable(string question, MessageBoxButton buttons)
{
Contract.Requires(!string.IsNullOrWhiteSpace(question));
var subject = new AsyncSubject <MessageBoxResult>();
var newQuestions = new Question
{
Body = question,
Buttons = buttons,
Callback = result => {
subject.OnNext(result);
subject.OnCompleted();
}
};
this.Add(newQuestions);
return(subject);
}
public async Task Should_Send_and_receive_notifications()
{
var clientNotification = new AsyncSubject <Data>();
var serverNotification = new AsyncSubject <Data>();
var(client, server) = await Initialize(
clientOptions =>
{
clientOptions.OnNotification(
"mynotification", (Data data) =>
{
clientNotification.OnNext(data);
clientNotification.OnCompleted();
}
);
},
serverOptions =>
{
serverOptions.OnNotification(
"mynotification", (Data data) =>
{
serverNotification.OnNext(data);
serverNotification.OnCompleted();
}
);
}
);
client.SendNotification("mynotification", new Data {
Value = "myresponse"
});
var serverResponse = await serverNotification;
serverResponse.Value.Should().Be("myresponse");
server.SendNotification("mynotification", new Data {
Value = string.Join("", "myresponse".Reverse())
});
var clientResponse = await clientNotification;
clientResponse.Value.Should().Be("esnopserym");
}
/// <summary>
/// Adding new source stream to run
/// </summary>
/// <param name="Source">any observable streams</param>
public void Add <T>(UniRx.IObservable <T> Source)
{
lock (_gate)
{
if (_tail != null)
{
var newHead = new AsyncSubject <Unit>();
_tail
.Subscribe(_ =>
{
var streamToLink =
Source
.DoOnCompleted(() =>
{
newHead.OnNext(Unit.Default);
newHead.OnCompleted();
}).Subscribe();
_queHistory.Add(streamToLink);
});
_tail = newHead;
_queHistory.Add(_tail);
}
else
{
var head = new AsyncSubject <Unit>();
var initialStream =
Source
.DoOnCompleted(() =>
{
head.OnNext(Unit.Default);
head.OnCompleted();
}).Subscribe();
_queHistory.Add(initialStream);
_tail = head;
_queHistory.Add(_tail);
}
}
}
public void CancellingItemsShouldNotResultInThemBeingReturned()
{
var subj1 = new AsyncSubject <int>();
var subj2 = new AsyncSubject <int>();
var fixture = new OperationQueue(2);
// Block up the queue
foreach (var v in new[] { subj1, subj2, })
{
fixture.EnqueueObservableOperation(5, () => v);
}
var cancel1 = new Subject <Unit>();
var item1 = new AsyncSubject <int>();
var output = new[] {
fixture.EnqueueObservableOperation(5, "foo", cancel1, () => item1),
fixture.EnqueueObservableOperation(5, "baz", () => Observable.Return(42)),
}.Merge().CreateCollection();
// Still blocked by subj1,2
Assert.Equal(0, output.Count);
// Still blocked by subj1,2, only baz is in queue
cancel1.OnNext(Unit.Default); cancel1.OnCompleted();
Assert.Equal(0, output.Count);
// foo was cancelled, baz is still good
subj1.OnNext(42);
subj1.OnCompleted();
Assert.Equal(1, output.Count);
// don't care that cancelled item finished
item1.OnNext(42);
item1.OnCompleted();
Assert.Equal(1, output.Count);
// still shouldn't see anything
subj2.OnNext(42);
subj2.OnCompleted();
Assert.Equal(1, output.Count);
}
public void CancellingItemsShouldntEvenBeEvaluated()
{
var subj1 = new AsyncSubject <int>();
var subj2 = new AsyncSubject <int>();
var fixture = new OperationQueue(2);
// Block up the queue
foreach (var v in new[] { subj1, subj2, })
{
fixture.EnqueueObservableOperation(5, () => v);
}
var cancel1 = new Subject <Unit>();
bool wasCalled = false;
var item1 = new AsyncSubject <int>();
var output = fixture.EnqueueObservableOperation(5, "foo", cancel1, () => {
wasCalled = true;
return(item1);
}).CreateCollection();
// Still blocked by subj1,2
Assert.Equal(0, output.Count);
Assert.False(wasCalled);
// Still blocked by subj1,2 - however, we've cancelled foo before
// it even had a chance to run - if that's the case, we shouldn't
// even call the evaluation func
cancel1.OnNext(Unit.Default); cancel1.OnCompleted();
Assert.Equal(0, output.Count);
Assert.False(wasCalled);
// Unblock subj1,2, we still shouldn't see wasCalled = true
subj1.OnNext(42); subj1.OnCompleted();
Assert.Equal(0, output.Count);
Assert.False(wasCalled);
subj2.OnNext(42); subj2.OnCompleted();
Assert.Equal(0, output.Count);
Assert.False(wasCalled);
}
/// <summary>
/// Acquires the read or write lock on the scheduler, as observable.
/// </summary>
/// <param name="schedulingTaskFactory">The task factory.</param>
/// <returns></returns>
private IObservable <ReaderWriterLock> AcquireReadOrWriteLockObservable(TaskFactory schedulingTaskFactory)
{
// check for incorrect entry once we have already been disposed
if (IsDisposed)
{
return(Observable.Throw <ReaderWriterLock>(new ObjectDisposedException(this.GetType().Name)));
}
// basically what happens here is we use the (concurrent) reader or (exclusive) handed in
// and schedule a new tpl task on it which merely wraps or contains chained IDisposable creation.
// What happens then is, we return a 'future' promise or timeslot for whenever the ConcurrentExclusiveSchedulerPair
// does actually start working on that TPL task (meaning that by its own, internal r/w locking, the task was up next).
// this is the result we hand back to the caller
var asyncSubject = new AsyncSubject <ReaderWriterLock>();
var gate = new AsyncSubject <Unit>();
schedulingTaskFactory.StartNew(async() =>
{
// this asyncSubject is the one actually handed back to the method's caller as IDisposable instance
// & whenever that one is disposed, the gate gets unblocked \o/
asyncSubject.OnNext(
new ReaderWriterLock(
Interlocked.Increment(ref _scheduledOperationId),
schedulingTaskFactory == ExclusiveTaskFactory,
Disposable.Create(() =>
{
gate.OnNext(Unit.Default);
gate.OnCompleted();
})));
asyncSubject.OnCompleted();
// once the asyncSubject's ticket has been disposed, this gate gets unlocked, too
await gate;
// cleanup
gate.Dispose();
gate = null;
});
return(asyncSubject);
}
AsyncSubject <byte[]> FetchOrWriteBlobFromDisk(string key, object byteData, bool synchronous)
{
// If this is secretly a write, dispatch to WriteBlobToDisk (we're
// kind of abusing the 'context' variable from MemoizingMRUCache
// here a bit)
if (byteData != null)
{
return(WriteBlobToDisk(key, (byte[])byteData, synchronous));
}
var ret = new AsyncSubject <byte[]>();
var ms = new MemoryStream();
var scheduler = synchronous ? System.Reactive.Concurrency.Scheduler.Immediate : Scheduler;
if (disposed)
{
Observable.Throw <byte[]>(new ObjectDisposedException("PersistentBlobCache"))
.Multicast(ret)
.PermaRef();
return(ret);
}
Func <IObservable <byte[]> > readResult = () =>
Observable.Defer(() =>
filesystem.SafeOpenFileAsync(GetPathForKey(key), FileMode.Open, FileAccess.Read, FileShare.Read, scheduler))
.Retry(1)
.SelectMany(x => x.CopyToAsync(ms, scheduler))
.SelectMany(x => AfterReadFromDiskFilter(ms.ToArray(), scheduler))
.Catch <byte[], FileNotFoundException>(ex => ObservableThrowKeyNotFoundException(key, ex))
.Catch <byte[], IsolatedStorageException>(ex => ObservableThrowKeyNotFoundException(key, ex))
.Do(_ =>
{
if (!synchronous && key != BlobCacheIndexKey)
{
actionTaken.OnNext(Unit.Default);
}
});
readResult().Multicast(ret).PermaRef();
return(ret);
}
public virtual IObservable <bool> ConnectAsync(string serverAddress, string applicationName)
{
ValidateDisposed();
var future = new AsyncSubject <bool>();
var watchStatusChanged = new SingleAssignmentDisposable();
watchStatusChanged.Disposable = this.ObserveStatusChanged().Subscribe(x =>
{
if (x == StatusCode.ExceptionOnConnect)
{
watchStatusChanged.Dispose();
future.OnError(new ConnectionFailedException(serverAddress, applicationName));
}
if (x == StatusCode.Connect)
{
watchStatusChanged.Dispose();
future.OnNext(true);
future.OnCompleted();
}
});
if (this.Connect(serverAddress, applicationName))
{
this.LastConnectServerAddress = serverAddress;
this.LastConnectApplicationName = applicationName;
return(future.Timeout(Timeout).Catch((Exception ex) =>
{
watchStatusChanged.Dispose();
this.Disconnect();
return Observable.Throw <bool>(ex);
}));
}
else
{
watchStatusChanged.Dispose();
return(Observable.Return(false));
}
}
/// <summary>
/// Starts a streamed request - unary response call.
/// Use StartSendMessage and StartSendCloseFromClient to stream requests.
/// </summary>
public IObservable <TResponse> ClientStreamingCallAsync()
{
lock (myLock)
{
GrpcPreconditions.CheckState(!started);
started = true;
Initialize(details.Channel.CompletionQueue);
readingDone = true;
unaryResponseTcs = new AsyncSubject <TResponse>();
using (var metadataArray = MetadataArraySafeHandle.Create(details.Options.Headers))
{
call.StartClientStreaming(HandleUnaryResponse, metadataArray);
}
return(unaryResponseTcs);
}
}
public IObservable <Unit> Flush()
{
var ret = new AsyncSubject <Unit>();
return(Task.Run(async() =>
{
// NB: We add a "DoNothing" operation so that the thread waiting
// on an item will always have one instead of waiting the full timeout
// before we can run the flush
operationQueue.Add(OperationQueueItem.CreateUnit(OperationType.DoNothing));
using (await flushLock.LockAsync())
{
var newQueue = new BlockingCollection <OperationQueueItem>();
var existingItems = Interlocked.Exchange(ref operationQueue, newQueue).ToList();
ProcessItems(CoalesceOperations(existingItems));
}
}).ToObservable());
}
public AsyncSubject <Unit> AddCards(List <TimelineSerializableData> items)
{
AsyncSubject <Unit> subject = new AsyncSubject <Unit>();
Func <UniTask> asyncFunc = async() =>
{
var doTweenList = new DOTweenList();
items.ForEach(item =>
{
var turnCard = CreateCard(item);
doTweenList.Add(AddCardAnimation(turnCard.transform, _turnCards.Count));
});
await doTweenList;
ActiveCardGrow();
subject.OnNext(Unit.Default);
subject.OnCompleted();
};
asyncFunc();
return(subject);
}
static void MainAS(string[] args)
{
Task <int> t = Task <int> .Factory.StartNew(() => 42);
int value = t.Result;
// AsyncSubject always stores the last value, and only
// gives it up on OnCompleted
AsyncSubject <double> sensor = new AsyncSubject <double>();
sensor.OnNext(10);
sensor.Subscribe(Console.WriteLine);
sensor.OnNext(20);
sensor.OnCompleted();
// implicit contact - sequence ends in either
// OnCompleted or OnError
sensor.OnNext(30); // does nothing
}
/* Getting from A to B:
*
* This is what it might look like if we wrapped this method by-hand. Writing
* this code over and over again would get really boring, but it's good to do it
* once to see what it would look like.
*/
public static IObservable <string> DownloadPageTextRx(string url)
{
var subject = new AsyncSubject <string>();
// Call our original method
try
{
DownloadPageTextAsync(url, (pageText) =>
{
subject.OnNext(pageText);
subject.OnCompleted();
});
}
catch (Exception ex)
{
subject.OnError(ex);
}
return(subject);
}
public static IObservable <Unit> ToObservable(this Task This)
{
var ret = new AsyncSubject <Unit>();
This.ContinueWith(x => {
try {
if (x.Exception != null)
{
ret.OnError(x.Exception);
return;
}
ret.OnNext(Unit.Default);
ret.OnCompleted();
} catch (Exception ex) {
ret.OnError(ex);
}
});
return(ret);
}
/// <summary>
/// Invalidates all objects of the specified type. To invalidate all
/// objects regardless of type, use InvalidateAll.
/// </summary>
/// <remarks>Returns a Unit for each invalidation completion. Use Wait instead of First to wait for
/// this.</remarks>
public static IObservable <Unit> InvalidateAllObjects <T>(this IBlobCache This)
{
var objCache = This as IObjectBlobCache;
if (objCache != null)
{
return(objCache.InvalidateAllObjects <T>());
}
var ret = new AsyncSubject <Unit>();
This.GetAllKeys().Where(x => x.StartsWith(GetTypePrefixedKey("", typeof(T))))
.ToObservable()
.SelectMany(This.Invalidate)
.Subscribe(
_ => { },
ex => ret.OnError(ex),
() => { ret.OnNext(Unit.Default); ret.OnCompleted(); });
return(ret);
}
public void PhotosSearchAsyncShowerTest()
{
Flickr f = TestData.GetAuthInstance();
PhotoSearchOptions o = new PhotoSearchOptions();
o.UserId = "78507951@N00";
o.Tags = "shower";
o.SortOrder = PhotoSearchSortOrder.DatePostedDescending;
o.PerPage = 1000;
o.TagMode = TagMode.AllTags;
o.Extras = PhotoSearchExtras.All;
var w = new AsyncSubject <FlickrResult <PhotoCollection> >();
f.PhotosSearchAsync(o, r => { w.OnNext(r); w.OnCompleted(); });
var result = w.Next().First();
Assert.IsTrue(result.Result.Total > 0);
}
/// <summary>
/// Returns an observable sequence that signals when the task completes.
/// </summary>
/// <param name="task">Task to convert to an observable sequence.</param>
/// <returns>An observable sequence that produces a unit value when the task completes, or propagates the exception produced by the task.</returns>
/// <exception cref="ArgumentNullException"><paramref name="task"/> is null.</exception>
/// <remarks>If the specified task object supports cancellation, consider using <see cref="Observable.FromAsync(Func{CancellationToken, Task})"/> instead.</remarks>
public static IObservable <Unit> ToObservable(this Task task)
{
if (task == null)
{
throw new ArgumentNullException("task");
}
// AsyncSubject<Unit>： Represents the result of an asynchronous operation.
var subject = new AsyncSubject <Unit>();
if (task.IsCompleted)
{
ToObservableDone(task, subject);
}
else
{
ToObservableSlow(task, subject);
}
return(subject.AsObservable());
}
public async Task OneObserverTwoItems()
{
var subject = new AsyncSubject <int>();
string result = "";
var t = subject
.Finally(() => result += "F")
.SubscribeAsync(i => result += i, ex => result += "E", () => result += "C");
await subject.OnNextAsync(1);
await subject.OnNextAsync(2);
await subject.DisposeAsync();
await t;
result
.Should().Be("12FC");
}
public void HasObservers_Dispose2()
{
var s = new AsyncSubject <int>();
Assert.IsFalse(s.HasObservers);
Assert.IsFalse(s.IsDisposed);
var d = s.Subscribe(_ => { });
Assert.IsTrue(s.HasObservers);
Assert.IsFalse(s.IsDisposed);
d.Dispose();
Assert.IsFalse(s.HasObservers);
Assert.IsFalse(s.IsDisposed);
s.Dispose();
Assert.IsFalse(s.HasObservers);
Assert.IsTrue(s.IsDisposed);
}