80 lines
4.1 KiB
C#
80 lines
4.1 KiB
C#
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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
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#if HAS_AWAIT
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using System.Threading;
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using System.Reactive.Disposables;
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using System.Reactive.Subjects;
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namespace System.Reactive.Linq
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{
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public static partial class Observable
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{
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/// <summary>
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/// Gets an awaiter that returns the last value of the observable sequence or throws an exception if the sequence is empty.
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/// This operation subscribes to the observable sequence, making it hot.
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/// </summary>
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/// <typeparam name="TSource">The type of the elements in the source sequence.</typeparam>
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/// <param name="source">Source sequence to await.</param>
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/// <returns>Object that can be awaited.</returns>
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/// <exception cref="ArgumentNullException"><paramref name="source"/> is null.</exception>
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public static AsyncSubject<TSource> GetAwaiter<TSource>(this IObservable<TSource> source)
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{
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if (source == null)
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throw new ArgumentNullException("source");
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return s_impl.GetAwaiter<TSource>(source);
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}
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/// <summary>
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/// Gets an awaiter that returns the last value of the observable sequence or throws an exception if the sequence is empty.
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/// This operation subscribes and connects to the observable sequence, making it hot.
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/// </summary>
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/// <typeparam name="TSource">The type of the elements in the source sequence.</typeparam>
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/// <param name="source">Source sequence to await.</param>
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/// <returns>Object that can be awaited.</returns>
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/// <exception cref="ArgumentNullException"><paramref name="source"/> is null.</exception>
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public static AsyncSubject<TSource> GetAwaiter<TSource>(this IConnectableObservable<TSource> source)
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{
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if (source == null)
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throw new ArgumentNullException("source");
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return s_impl.GetAwaiter<TSource>(source);
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}
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/// <summary>
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/// Gets an awaiter that returns the last value of the observable sequence or throws an exception if the sequence is empty.
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/// This operation subscribes to the observable sequence, making it hot. The supplied CancellationToken can be used to cancel the subscription.
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/// </summary>
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/// <typeparam name="TSource">The type of the elements in the source sequence.</typeparam>
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/// <param name="source">Source sequence to await.</param>
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/// <param name="cancellationToken">Cancellation token.</param>
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/// <returns>Object that can be awaited.</returns>
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/// <exception cref="ArgumentNullException"><paramref name="source"/> is null.</exception>
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public static AsyncSubject<TSource> RunAsync<TSource>(this IObservable<TSource> source, CancellationToken cancellationToken)
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{
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if (source == null)
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throw new ArgumentNullException("source");
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return s_impl.RunAsync<TSource>(source, cancellationToken);
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}
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/// <summary>
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/// Gets an awaiter that returns the last value of the observable sequence or throws an exception if the sequence is empty.
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/// This operation subscribes and connects to the observable sequence, making it hot. The supplied CancellationToken can be used to cancel the subscription and connection.
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/// </summary>
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/// <typeparam name="TSource">The type of the elements in the source sequence.</typeparam>
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/// <param name="source">Source sequence to await.</param>
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/// <param name="cancellationToken">Cancellation token.</param>
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/// <returns>Object that can be awaited.</returns>
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/// <exception cref="ArgumentNullException"><paramref name="source"/> is null.</exception>
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public static AsyncSubject<TSource> RunAsync<TSource>(this IConnectableObservable<TSource> source, CancellationToken cancellationToken)
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{
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if (source == null)
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throw new ArgumentNullException("source");
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return s_impl.RunAsync<TSource>(source, cancellationToken);
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}
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}
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}
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#endif
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