| /* |
| * 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.Extensions; |
| |
| using DotPulsar.Abstractions; |
| using System.Threading; |
| using System.Threading.Tasks; |
| |
| /// <summary> |
| /// Extensions for IReader. |
| /// </summary> |
| public static class ReaderExtensions |
| { |
| /// <summary> |
| /// Wait for the state to change to a specific state. |
| /// </summary> |
| /// <returns> |
| /// The current state. |
| /// </returns> |
| /// <remarks> |
| /// If the state change to a final state, then all awaiting tasks will complete. |
| /// </remarks> |
| public static async ValueTask<ReaderStateChanged> StateChangedTo(this IReader reader, ReaderState state, CancellationToken cancellationToken = default) |
| { |
| var newState = await reader.OnStateChangeTo(state, cancellationToken).ConfigureAwait(false); |
| return new ReaderStateChanged(reader, newState); |
| } |
| |
| /// <summary> |
| /// Wait for the state to change from a specific state. |
| /// </summary> |
| /// <returns> |
| /// The current state. |
| /// </returns> |
| /// <remarks> |
| /// If the state change to a final state, then all awaiting tasks will complete. |
| /// </remarks> |
| public static async ValueTask<ReaderStateChanged> StateChangedFrom(this IReader reader, ReaderState state, CancellationToken cancellationToken = default) |
| { |
| var newState = await reader.OnStateChangeFrom(state, cancellationToken).ConfigureAwait(false); |
| return new ReaderStateChanged(reader, newState); |
| } |
| } |