blob: ffbfa0d0961a472eb2b7335ce2163c766df471ad (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
/*
* Copyright (c) 2023 Vaughn Nugent
*
* Library: VNLib
* Package: VNLib.Plugins.Extensions.VNCache
* File: IClusterNodeIndex.cs
*
* IClusterNodeIndex.cs is part of VNLib.Plugins.Extensions.VNCache which is part of the larger
* VNLib collection of libraries and utilities.
*
* VNLib.Plugins.Extensions.VNCache is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* VNLib.Plugins.Extensions.VNCache is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see https://www.gnu.org/licenses/.
*/
using System.Threading;
using System.Threading.Tasks;
using VNLib.Data.Caching.Extensions.Clustering;
namespace VNLib.Plugins.Extensions.VNCache.Clustering
{
internal interface IClusterNodeIndex
{
/// <summary>
/// Gets the next available node using the configured balancing policy
/// or null if no nodes are available
/// </summary>
/// <returns>The next available node to connect to if any are available</returns>
CacheNodeAdvertisment? GetNextNode();
/// <summary>
/// Waits for the discovery process to complete. This is just incase a
/// connection wants to happen while a long discovery is processing.
/// </summary>
/// <param name="cancellationToken">A token to cancel the operation</param>
/// <returns>A task that resolves when the discovery process completes</returns>
Task WaitForDiscoveryAsync(CancellationToken cancellationToken);
}
}
|