blob: 661c5bed211bf685a7c176b6d7e88ab5cb7e8996 [file] [log] [blame]
/*
* 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);
}
}