Class ConcurrentReplayLatestSubjectAsync<T>

Namespace

ReactiveUI.Extensions.Async.Subjects

Assembly

ReactiveUI.Extensions.dll

Represents an asynchronous subject that replays only the latest value to new observers and supports concurrent notification of observers.

public sealed class ConcurrentReplayLatestSubjectAsync<T> : BaseReplayLatestSubjectAsync<T>, ISubjectAsync<T>, IObserverAsync<T>, IAsyncDisposable, IObservableAsync<T>

Type Parameters

T

The type of the elements processed by the subject.

Inheritance

object

ObservableAsync<T>

BaseReplayLatestSubjectAsync<T>

ConcurrentReplayLatestSubjectAsync<T>

Implements

ISubjectAsync<T>

IObserverAsync<T>

IAsyncDisposable

IObservableAsync<T>

Inherited Members

BaseReplayLatestSubjectAsync<T>.OnNextAsync(T, CancellationToken)

BaseReplayLatestSubjectAsync<T>.OnErrorResumeAsync(Exception, CancellationToken)

BaseReplayLatestSubjectAsync<T>.OnCompletedAsync(Result)

BaseReplayLatestSubjectAsync<T>.DisposeAsync()

ObservableAsync<T>.SubscribeAsync(IObserverAsync<T>, CancellationToken)

Extension Methods

ObservableAsync.AggregateAsync<T, TAcc>(IObservableAsync<T>, TAcc, Func<TAcc, T, CancellationToken, ValueTask<TAcc>>, CancellationToken)

ObservableAsync.AggregateAsync<T, TAcc>(IObservableAsync<T>, TAcc, Func<TAcc, T, TAcc>, CancellationToken)

ObservableAsync.AggregateAsync<T, TAcc, TResult>(IObservableAsync<T>, TAcc, Func<TAcc, T, TAcc>, Func<TAcc, TResult>, CancellationToken)

ObservableAsync.AllAsync<T>(IObservableAsync<T>, Func<T, bool>, CancellationToken)

ObservableAsync.AnyAsync<T>(IObservableAsync<T>, Func<T, bool>?, CancellationToken)

ObservableAsync.AnyAsync<T>(IObservableAsync<T>, CancellationToken)

ObservableAsync.Cast<T, TResult>(IObservableAsync<T>)

ObservableAsync.CatchAndIgnoreErrorResume<T>(IObservableAsync<T>, Func<Exception, IObservableAsync<T>>)

ObservableAsync.Catch<T>(IObservableAsync<T>, Func<Exception, IObservableAsync<T>>, Func<Exception, CancellationToken, ValueTask>?)

ObservableAsync.CombineLatest<T1, T2, TResult>(IObservableAsync<T1>, IObservableAsync<T2>, Func<T1, T2, TResult>)

ObservableAsync.CombineLatest<T1, T2, T3, TResult>(IObservableAsync<T1>, IObservableAsync<T2>, IObservableAsync<T3>, Func<T1, T2, T3, TResult>)

ObservableAsync.CombineLatest<T1, T2, T3, T4, TResult>(IObservableAsync<T1>, IObservableAsync<T2>, IObservableAsync<T3>, IObservableAsync<T4>, Func<T1, T2, T3, T4, TResult>)

ObservableAsync.CombineLatest<T1, T2, T3, T4, T5, TResult>(IObservableAsync<T1>, IObservableAsync<T2>, IObservableAsync<T3>, IObservableAsync<T4>, IObservableAsync<T5>, Func<T1, T2, T3, T4, T5, TResult>)

ObservableAsync.CombineLatest<T1, T2, T3, T4, T5, T6, TResult>(IObservableAsync<T1>, IObservableAsync<T2>, IObservableAsync<T3>, IObservableAsync<T4>, IObservableAsync<T5>, IObservableAsync<T6>, Func<T1, T2, T3, T4, T5, T6, TResult>)

ObservableAsync.CombineLatest<T1, T2, T3, T4, T5, T6, T7, TResult>(IObservableAsync<T1>, IObservableAsync<T2>, IObservableAsync<T3>, IObservableAsync<T4>, IObservableAsync<T5>, IObservableAsync<T6>, IObservableAsync<T7>, Func<T1, T2, T3, T4, T5, T6, T7, TResult>)

ObservableAsync.CombineLatest<T1, T2, T3, T4, T5, T6, T7, T8, TResult>(IObservableAsync<T1>, IObservableAsync<T2>, IObservableAsync<T3>, IObservableAsync<T4>, IObservableAsync<T5>, IObservableAsync<T6>, IObservableAsync<T7>, IObservableAsync<T8>, Func<T1, T2, T3, T4, T5, T6, T7, T8, TResult>)

ObservableAsync.Concat<T>(IObservableAsync<T>, IObservableAsync<T>)

ObservableAsync.ContainsAsync<T>(IObservableAsync<T>, T, IEqualityComparer<T>?, CancellationToken)

ObservableAsync.ContainsAsync<T>(IObservableAsync<T>, T, CancellationToken)

ObservableAsync.CountAsync<T>(IObservableAsync<T>, Func<T, bool>?, CancellationToken)

ObservableAsync.CountAsync<T>(IObservableAsync<T>, CancellationToken)

ObservableAsync.Delay<T>(IObservableAsync<T>, TimeSpan, TimeProvider?)

ObservableAsync.DistinctBy<T, TKey>(IObservableAsync<T>, Func<T, TKey>)

ObservableAsync.DistinctBy<T, TKey>(IObservableAsync<T>, Func<T, TKey>, IEqualityComparer<TKey>)

ObservableAsync.DistinctUntilChangedBy<T, TKey>(IObservableAsync<T>, Func<T, TKey>)

ObservableAsync.DistinctUntilChangedBy<T, TKey>(IObservableAsync<T>, Func<T, TKey>, IEqualityComparer<TKey>)

ObservableAsync.DistinctUntilChanged<T>(IObservableAsync<T>)

ObservableAsync.DistinctUntilChanged<T>(IObservableAsync<T>, IEqualityComparer<T>)

ObservableAsync.Distinct<T>(IObservableAsync<T>)

ObservableAsync.Distinct<T>(IObservableAsync<T>, IEqualityComparer<T>)

ObservableAsync.Do<T>(IObservableAsync<T>, Action<T>?, Action<Exception>?, Action<Result>?)

ObservableAsync.Do<T>(IObservableAsync<T>, Func<T, CancellationToken, ValueTask>?, Func<Exception, CancellationToken, ValueTask>?, Func<Result, ValueTask>?)

ObservableAsync.FirstAsync<T>(IObservableAsync<T>, Func<T, bool>, CancellationToken)

ObservableAsync.FirstAsync<T>(IObservableAsync<T>, CancellationToken)

ObservableAsync.FirstOrDefaultAsync<T>(IObservableAsync<T>, Func<T, bool>, T?, CancellationToken)

ObservableAsync.FirstOrDefaultAsync<T>(IObservableAsync<T>, CancellationToken)

ObservableAsync.FirstOrDefaultAsync<T>(IObservableAsync<T>, T?, CancellationToken)

ObservableAsync.ForEachAsync<T>(IObservableAsync<T>, Action<T>, CancellationToken)

ObservableAsync.ForEachAsync<T>(IObservableAsync<T>, Func<T, CancellationToken, ValueTask>, CancellationToken)

ObservableAsync.GroupBy<TKey, TValue>(IObservableAsync<TValue>, Func<TValue, TKey>)

ObservableAsync.GroupBy<TKey, TValue>(IObservableAsync<TValue>, Func<TValue, TKey>, Func<TKey, ISubjectAsync<TValue>>)

ObservableAsync.LastAsync<T>(IObservableAsync<T>, Func<T, bool>, CancellationToken)

ObservableAsync.LastAsync<T>(IObservableAsync<T>, CancellationToken)

ObservableAsync.LastOrDefaultAsync<T>(IObservableAsync<T>, Func<T, bool>, T?, CancellationToken)

ObservableAsync.LastOrDefaultAsync<T>(IObservableAsync<T>, CancellationToken)

ObservableAsync.LastOrDefaultAsync<T>(IObservableAsync<T>, T?, CancellationToken)

ObservableAsync.LongCountAsync<T>(IObservableAsync<T>, Func<T, bool>?, CancellationToken)

ObservableAsync.LongCountAsync<T>(IObservableAsync<T>, CancellationToken)

ObservableAsync.Merge<T>(IObservableAsync<T>, IObservableAsync<T>)

ObservableAsync.Multicast<T>(IObservableAsync<T>, ISubjectAsync<T>)

ObservableAsync.ObserveOn<T>(IObservableAsync<T>, AsyncContext, bool)

ObservableAsync.ObserveOn<T>(IObservableAsync<T>, IScheduler, bool)

ObservableAsync.ObserveOn<T>(IObservableAsync<T>, SynchronizationContext, bool)

ObservableAsync.ObserveOn<T>(IObservableAsync<T>, TaskScheduler, bool)

ObservableAsync.OfType<T, TResult>(IObservableAsync<T>)

ObservableAsync.OnDispose<T>(IObservableAsync<T>, Action)

ObservableAsync.OnDispose<T>(IObservableAsync<T>, Func<ValueTask>)

ObservableAsync.OnErrorResumeAsFailure<T>(IObservableAsync<T>)

ObservableAsync.Prepend<T>(IObservableAsync<T>, IEnumerable<T>)

ObservableAsync.Prepend<T>(IObservableAsync<T>, T)

ObservableAsync.Publish<T>(IObservableAsync<T>)

ObservableAsync.Publish<T>(IObservableAsync<T>, SubjectCreationOptions)

ObservableAsync.Publish<T>(IObservableAsync<T>, T)

ObservableAsync.Publish<T>(IObservableAsync<T>, T, BehaviorSubjectCreationOptions)

ObservableAsync.ReplayLatestPublish<T>(IObservableAsync<T>)

ObservableAsync.ReplayLatestPublish<T>(IObservableAsync<T>, ReplayLatestSubjectCreationOptions)

ObservableAsync.Retry<T>(IObservableAsync<T>)

ObservableAsync.Retry<T>(IObservableAsync<T>, int)

ObservableAsync.Scan<T, TAcc>(IObservableAsync<T>, TAcc, Func<TAcc, T, CancellationToken, ValueTask<TAcc>>)

ObservableAsync.Scan<T, TAcc>(IObservableAsync<T>, TAcc, Func<TAcc, T, TAcc>)

ObservableAsync.SelectMany<T, TResult>(IObservableAsync<T>, Func<T, IObservableAsync<TResult>>)

ObservableAsync.SelectMany<T, TResult>(IObservableAsync<T>, Func<T, CancellationToken, ValueTask<IObservableAsync<TResult>>>)

ObservableAsync.SelectMany<T, TCollection, TResult>(IObservableAsync<T>, Func<T, IObservableAsync<TCollection>>, Func<T, TCollection, TResult>)

ObservableAsync.Select<T, TDest>(IObservableAsync<T>, Func<T, CancellationToken, ValueTask<TDest>>)

ObservableAsync.Select<T, TDest>(IObservableAsync<T>, Func<T, TDest>)

ObservableAsync.SingleAsync<T>(IObservableAsync<T>, Func<T, bool>, CancellationToken)

ObservableAsync.SingleAsync<T>(IObservableAsync<T>, CancellationToken)

ObservableAsync.SingleOrDefaultAsync<T>(IObservableAsync<T>, Func<T, bool>, T?, CancellationToken)

ObservableAsync.SingleOrDefaultAsync<T>(IObservableAsync<T>, CancellationToken)

ObservableAsync.SingleOrDefaultAsync<T>(IObservableAsync<T>, T?, CancellationToken)

ObservableAsync.SkipWhile<T>(IObservableAsync<T>, Func<T, bool>)

ObservableAsync.SkipWhile<T>(IObservableAsync<T>, Func<T, CancellationToken, ValueTask<bool>>)

ObservableAsync.Skip<T>(IObservableAsync<T>, int)

ObservableAsync.StartWith<T>(IObservableAsync<T>, IEnumerable<T>)

ObservableAsync.StartWith<T>(IObservableAsync<T>, T)

ObservableAsync.StartWith<T>(IObservableAsync<T>, params T[])

ObservableAsync.StatelessPublish<T>(IObservableAsync<T>)

ObservableAsync.StatelessPublish<T>(IObservableAsync<T>, T)

ObservableAsync.StatelessReplayLatestPublish<T>(IObservableAsync<T>)

ObservableAsync.SubscribeAsync<T>(IObservableAsync<T>)

ObservableAsync.SubscribeAsync<T>(IObservableAsync<T>, Action<T>, Action<Exception>?, Action<Result>?, CancellationToken)

ObservableAsync.SubscribeAsync<T>(IObservableAsync<T>, Action<T>, CancellationToken)

ObservableAsync.SubscribeAsync<T>(IObservableAsync<T>, Func<T, CancellationToken, ValueTask>)

ObservableAsync.SubscribeAsync<T>(IObservableAsync<T>, Func<T, CancellationToken, ValueTask>, Func<Exception, CancellationToken, ValueTask>?, Func<Result, ValueTask>?, CancellationToken)

ObservableAsync.SubscribeAsync<T>(IObservableAsync<T>, Func<T, CancellationToken, ValueTask>, CancellationToken)

ObservableAsync.TakeUntil<T>(IObservableAsync<T>, CompletionObservableDelegate, TakeUntilOptions?)

ObservableAsync.TakeUntil<T>(IObservableAsync<T>, Func<T, bool>)

ObservableAsync.TakeUntil<T>(IObservableAsync<T>, Func<T, CancellationToken, ValueTask<bool>>)

ObservableAsync.TakeUntil<T>(IObservableAsync<T>, CancellationToken)

ObservableAsync.TakeUntil<T>(IObservableAsync<T>, Task, TakeUntilOptions?)

ObservableAsync.TakeUntil<T, TOther>(IObservableAsync<T>, IObservableAsync<TOther>, TakeUntilOptions?)

ObservableAsync.TakeWhile<T>(IObservableAsync<T>, Func<T, bool>)

ObservableAsync.TakeWhile<T>(IObservableAsync<T>, Func<T, CancellationToken, ValueTask<bool>>)

ObservableAsync.Take<T>(IObservableAsync<T>, int)

ObservableAsync.Throttle<T>(IObservableAsync<T>, TimeSpan, TimeProvider?)

ObservableAsync.Timeout<T>(IObservableAsync<T>, TimeSpan, IObservableAsync<T>, TimeProvider?)

ObservableAsync.Timeout<T>(IObservableAsync<T>, TimeSpan, TimeProvider?)

ObservableAsync.ToAsyncEnumerable<T>(IObservableAsync<T>, Func<Channel<T>>, Func<Exception, CancellationToken, ValueTask>?)

ObservableAsync.ToDictionaryAsync<T, TKey>(IObservableAsync<T>, Func<T, TKey>, IEqualityComparer<TKey>?, CancellationToken)

ObservableAsync.ToDictionaryAsync<T, TKey, TValue>(IObservableAsync<T>, Func<T, TKey>, Func<T, TValue>, IEqualityComparer<TKey>?, CancellationToken)

ObservableAsync.ToListAsync<T>(IObservableAsync<T>, CancellationToken)

ObservableAsync.WaitCompletionAsync<T>(IObservableAsync<T>, CancellationToken)

ObservableAsync.Where<T>(IObservableAsync<T>, Func<T, bool>)

ObservableAsync.Where<T>(IObservableAsync<T>, Func<T, CancellationToken, ValueTask<bool>>)

ObservableAsync.Yield<T>(IObservableAsync<T>)

ObservableAsync.Zip<T1, T2>(IObservableAsync<T1>, IObservableAsync<T2>)

ObservableAsync.Zip<T1, T2, TResult>(IObservableAsync<T1>, IObservableAsync<T2>, Func<T1, T2, TResult>)

ObservableBridgeExtensions.ToObservable<T>(IObservableAsync<T>)

ObservableAsync.Wrap<T>(IObserverAsync<T>)

ReactiveExtensions.Schedule<T>(T, DateTimeOffset, IScheduler)

ReactiveExtensions.Schedule<T>(T, DateTimeOffset, IScheduler, Action<T>)

ReactiveExtensions.Schedule<T>(T, IScheduler, Func<T, T>)

ReactiveExtensions.Schedule<T>(T, TimeSpan, IScheduler)

ReactiveExtensions.Schedule<T>(T, TimeSpan, IScheduler, Action<T>)

ReactiveExtensions.Schedule<T>(T, TimeSpan, IScheduler, Func<T, T>)

SubjectMixins.AsObserverAsync<T>(ISubjectAsync<T>)

SubjectMixins.MapValues<T>(ISubjectAsync<T>, Func<IObservableAsync<T>, IObservableAsync<T>>)

Remarks

This subject notifies all observers concurrently, which can improve throughput in scenarios with multiple observers. The order in which observers receive notifications is not guaranteed. This type is thread-safe and suitable for use in asynchronous and concurrent environments.

Constructors

ConcurrentReplayLatestSubjectAsync(Optional<T>)

Represents an asynchronous subject that replays only the latest value to new observers and supports concurrent notification of observers.

public ConcurrentReplayLatestSubjectAsync(Optional<T> startValue)

Parameters

startValue Optional<T>

An optional initial value to be emitted to observers upon subscription if no other value has been published.

Remarks

This subject notifies all observers concurrently, which can improve throughput in scenarios with multiple observers. The order in which observers receive notifications is not guaranteed. This type is thread-safe and suitable for use in asynchronous and concurrent environments.

Methods

OnCompletedAsyncCore(IReadOnlyList<IObserverAsync<T>>, Result)

Notifies all observers that the asynchronous operation has completed, forwarding the specified result to each observer.

protected override ValueTask OnCompletedAsyncCore(IReadOnlyList<IObserverAsync<T>> observers, Result result)

Parameters

observers IReadOnlyList<IObserverAsync<T>>

A read-only list of observers to be notified of the completion event. Cannot be null.

result Result

The result to forward to each observer upon completion.

Returns

ValueTask

A ValueTask that represents the asynchronous notification operation.

Remarks

Observers are notified concurrently. The method does not guarantee the order in which observers are notified.

OnErrorResumeAsyncCore(IReadOnlyList<IObserverAsync<T>>, Exception, CancellationToken)

Asynchronously notifies all observers of an error and resumes processing, if possible.

protected override ValueTask OnErrorResumeAsyncCore(IReadOnlyList<IObserverAsync<T>> observers, Exception error, CancellationToken cancellationToken)

Parameters

observers IReadOnlyList<IObserverAsync<T>>

The collection of observers to be notified of the error. Cannot be null.

error Exception

The exception that occurred. Cannot be null.

cancellationToken CancellationToken

A token that can be used to cancel the asynchronous operation.

Returns

ValueTask

A ValueTask that represents the asynchronous notification operation.

OnNextAsyncCore(IReadOnlyList<IObserverAsync<T>>, T, CancellationToken)

Asynchronously notifies all observers in the collection with the specified value.

protected override ValueTask OnNextAsyncCore(IReadOnlyList<IObserverAsync<T>> observers, T value, CancellationToken cancellationToken)

Parameters

observers IReadOnlyList<IObserverAsync<T>>

The collection of observers to be notified. Cannot be null.

value T

The value to send to each observer.

cancellationToken CancellationToken

A cancellation token that can be used to cancel the notification operation.

Returns

ValueTask

A ValueTask that represents the asynchronous notification operation.