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try processing queue with timer instead of task

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rootdarkarchon
2023-01-15 01:07:45 +01:00
parent 3fc6b01df9
commit cf6ad890cd
1 changed files with 33 additions and 30 deletions
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25
MareSynchronosServer/MareSynchronosStaticFilesServer/Services/RequestQueueService.cs
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@@ -3,12 +3,12 @@ using MareSynchronosShared.Metrics;
using MareSynchronosShared.Services;
using MareSynchronosStaticFilesServer.Utils;
using System.Collections.Concurrent;
using System.Timers;
namespace MareSynchronosStaticFilesServer.Services;
public class RequestQueueService : IHostedService
{
private CancellationTokenSource _queueCts = new();
private readonly UserQueueEntry[] _userQueueRequests;
private readonly ConcurrentQueue<UserRequest> _queue = new();
private readonly MareMetrics _metrics;
@@ -16,6 +16,8 @@ public class RequestQueueService : IHostedService
private readonly int _queueExpirationSeconds;
private SemaphoreSlim _queueSemaphore = new(1);
private SemaphoreSlim _queueProcessingSemaphore = new(1);
private bool _isProcessingQueue = false;
private System.Timers.Timer _queueTimer;
public RequestQueueService(MareMetrics metrics, IConfigurationService<StaticFilesServerConfiguration> configurationService, ILogger<RequestQueueService> logger)
{
@@ -100,14 +102,15 @@ public class RequestQueueService : IHostedService
_userQueueRequests.Where(f => f != null).First(f => f.UserRequest.RequestId == request).IsActive = true;
}
private async Task ProcessRequestQueue(CancellationToken ct)
{
while (!ct.IsCancellationRequested)
private async void ProcessQueue(object src, ElapsedEventArgs e)
{
if (_isProcessingQueue) return;
_isProcessingQueue = true;
try
{
await _queueProcessingSemaphore.WaitAsync(ct).ConfigureAwait(false);
await _queueSemaphore.WaitAsync(ct).ConfigureAwait(false);
await _queueProcessingSemaphore.WaitAsync().ConfigureAwait(false);
await _queueSemaphore.WaitAsync().ConfigureAwait(false);
for (int i = 0; i < _userQueueRequests.Length; i++)
{
if (_userQueueRequests[i] != null && !_userQueueRequests[i].IsActive && _userQueueRequests[i].ExpirationDate < DateTime.UtcNow) _userQueueRequests[i] = null;
@@ -135,9 +138,7 @@ public class RequestQueueService : IHostedService
}
_metrics.SetGaugeTo(MetricsAPI.GaugeDownloadQueue, _queue.Count);
await Task.Delay(250).ConfigureAwait(false);
}
_isProcessingQueue = false;
}
private void DequeueIntoSlot(UserRequest userRequest, int slot)
@@ -148,13 +149,15 @@ public class RequestQueueService : IHostedService
public Task StartAsync(CancellationToken cancellationToken)
{
_ = Task.Run(() => ProcessRequestQueue(_queueCts.Token));
_queueTimer = new System.Timers.Timer(250);
_queueTimer.Elapsed += ProcessQueue;
_queueTimer.AutoReset = true;
return Task.CompletedTask;
}
public Task StopAsync(CancellationToken cancellationToken)
{
_queueCts.Cancel();
_queueTimer.Stop();
return Task.CompletedTask;
}
}