| | | 1 | | using Medallion.Threading; |
| | | 2 | | using Microsoft.Extensions.DependencyInjection; |
| | | 3 | | using Microsoft.Extensions.Logging; |
| | | 4 | | |
| | | 5 | | namespace Elsa.Workflows.Runtime.Distributed; |
| | | 6 | | |
| | | 7 | | public class DistributedBookmarkQueueWorker( |
| | | 8 | | IDistributedLockProvider distributedLockProvider, |
| | | 9 | | IBookmarkQueueSignaler signaler, |
| | | 10 | | IServiceScopeFactory scopeFactory, |
| | 2 | 11 | | ILogger<DistributedBookmarkQueueWorker> logger) : BookmarkQueueWorker(signaler, scopeFactory, logger) |
| | | 12 | | { |
| | 1 | 13 | | private static readonly TimeSpan LockRetryDelay = TimeSpan.FromSeconds(2); |
| | | 14 | | |
| | | 15 | | protected override async Task ProcessAsync(CancellationToken cancellationToken) |
| | | 16 | | { |
| | 4 | 17 | | await using var handle = await distributedLockProvider.TryAcquireLockAsync(nameof(DistributedBookmarkQueueWorker |
| | | 18 | | |
| | 3 | 19 | | if (handle == null) |
| | | 20 | | { |
| | 1 | 21 | | logger.LogDebug("Could not acquire lock for distributed bookmark queue worker. Another application instance |
| | 1 | 22 | | await Task.Delay(LockRetryDelay, cancellationToken); |
| | 0 | 23 | | await Signaler.TriggerAsync(cancellationToken); |
| | 0 | 24 | | return; |
| | | 25 | | } |
| | | 26 | | |
| | 2 | 27 | | await base.ProcessAsync(cancellationToken); |
| | 2 | 28 | | } |
| | | 29 | | } |