1565 high cpu load from asyncsignal (#1566)

2026-10-19 02:53:06 +08:00 · 2022-11-09 19:56:29 +01:00
parent 5c74728387
commit 5ee0bb4b65
6 changed files with 67 additions and 20 deletions
@@ -52,12 +52,26 @@ namespace MQTTnet.Tests.Internal
        }

        [TestMethod]
-        public async Task Loop_Signal()
+        public async Task Reset_Signal()
        {
            var asyncSignal = new AsyncSignal();

+            // WaitAsync should fail because no signal is available.
            for (var i = 0; i < 10; i++)
            {
+                try
+                {
+                    using (var timeout = new CancellationTokenSource(TimeSpan.FromMilliseconds(100)))
+                    {
+                        await asyncSignal.WaitAsync(timeout.Token);
+                    }
+                    
+                    Assert.Fail("This must fail because the signal is not yet set.");
+                }
+                catch (OperationCanceledException)
+                {
+                }
+                
                asyncSignal.Set();
                
                // WaitAsync should return directly because the signal is available.