| /* |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| namespace DotPulsar.Internal |
| { |
| using System; |
| using System.Threading; |
| using System.Threading.Tasks; |
| |
| public sealed class CancelableCompletionSource<T> : IDisposable |
| { |
| private readonly TaskCompletionSource<T> _source; |
| private CancellationTokenRegistration? _registration; |
| |
| public CancelableCompletionSource() |
| => _source = new TaskCompletionSource<T>(TaskCreationOptions.RunContinuationsAsynchronously); |
| |
| public void SetupCancellation(Action callback, CancellationToken token) |
| => _registration = token.Register(callback); |
| |
| public void SetResult(T result) |
| => _ = _source.TrySetResult(result); |
| |
| public void SetException(Exception exception) |
| => _ = _source.TrySetException(exception); |
| |
| public Task<T> Task => _source.Task; |
| |
| public void Dispose() |
| { |
| _ = _source.TrySetCanceled(); |
| _registration?.Dispose(); |
| } |
| } |
| } |