Updated

EonaCat.LogStack/EonaCat.LogStack.csproj

@@ -14,7 +14,7 @@ It features a rich fluent API for routing log events to dozens of destinations f
     <Copyright>EonaCat (Jeroen Saey)</Copyright>
     <PackageTags>EonaCat;Logger;EonaCatLogStack;Log;Writer;Flows;LogStack;Memory;Speed;Jeroen;Saey</PackageTags>
     <PackageIconUrl />
-    <FileVersion>0.1.9</FileVersion>
+    <FileVersion>0.2.0</FileVersion>
     <PackageReadmeFile>README.md</PackageReadmeFile>
     <GenerateDocumentationFile>True</GenerateDocumentationFile>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
@@ -25,7 +25,7 @@ It features a rich fluent API for routing log events to dozens of destinations f
   </PropertyGroup>
 
 	<PropertyGroup>
-		<EVRevisionFormat>0.1.9+{chash:10}.{c:ymd}</EVRevisionFormat>
+		<EVRevisionFormat>0.2.0+{chash:10}.{c:ymd}</EVRevisionFormat>
 		<EVDefault>true</EVDefault>
 		<EVInfo>true</EVInfo>
 		<EVTagMatch>v[0-9]*</EVTagMatch>
@@ -36,7 +36,7 @@ It features a rich fluent API for routing log events to dozens of destinations f
 	</PropertyGroup>
 
     <PropertyGroup>
-      <Version>0.1.9</Version>
+      <Version>0.2.0</Version>
       <PackageId>EonaCat.LogStack</PackageId>
       <Product>EonaCat.LogStack</Product>
       <RepositoryUrl>https://git.saey.me/EonaCat/EonaCat.LogStack</RepositoryUrl>

EonaCat.LogStack/EonaCatLogger.cs

@@ -718,20 +718,17 @@ namespace EonaCat.LogStack
             // Drain and stop the async channel pipeline if active
             if (_asyncChannel != null)
             {
-                // Flush all logs from flows first to ensure they're written to disk
+                // Complete the channel immediately - no more writes allowed
-                await FlushAsync().ConfigureAwait(false);
-
-                // Complete the channel - no more writes allowed
                 _asyncChannel.Writer.TryComplete();
 
                 if (_asyncConsumer != null)
                 {
                     try
                     {
-                        // Wait for the consumer task to finish draining the channel
+                        // Give the consumer a very short window (1 second) to finish naturally
-                        // Use a generous timeout (30 seconds) since we're dealing with legitimate I/O
+                        // If it doesn't complete in time, we proceed anyway to not block app shutdown
-                        // but prevent infinite hangs if something is truly deadlocked
+                        // This is critical for ensuring the logger never blocks application exit
-                        using (var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)))
+                        using (var cts = new CancellationTokenSource(TimeSpan.FromSeconds(1)))
                         {
                             try
                             {
@@ -739,33 +736,75 @@ namespace EonaCat.LogStack
                             }
                             catch (OperationCanceledException)
                             {
-                                // Do nothing
+                                // Timeout expired - consumer didn't finish in time
+                                // This is acceptable; the background task will continue draining
+                                // but we don't wait for it to allow app exit
                             }
                         }
                     }
                     catch (Exception ex)
                     {
-                        // Do nothing
+                        // Ignore any errors during consumer shutdown
+                    }
+                }
+
+                // Attempt to flush flows with a very short timeout
+                // Don't await indefinitely - prioritize app exit over log flushing
+                try
+                {
+                    using (var cts = new CancellationTokenSource(TimeSpan.FromMilliseconds(500)))
+                    {
+                        await FlushAsync(cts.Token).ConfigureAwait(false);
+                    }
+                }
+                catch (OperationCanceledException)
+                {
+                    // Flush timed out - that's OK, some logs might be lost but app exits cleanly
+                }
+                catch (Exception ex)
+                {
+                    // Ignore flush errors
+                }
+
+                // Dispose flows with a short timeout
+                var disposeTasks = _concurrentFlows.Select(f => f.DisposeAsync().AsTask()).ToArray();
+                if (disposeTasks.Length > 0)
+                {
+                    try
+                    {
+                        using (var cts = new CancellationTokenSource(TimeSpan.FromSeconds(1)))
+                        {
+                            await Task.WhenAll(disposeTasks).ConfigureAwait(false);
+                        }
+                    }
+                    catch (OperationCanceledException)
+                    {
+                        // Disposal timed out - proceed anyway
+                    }
+                    catch (Exception ex)
+                    {
+                        // Ignore disposal errors
                     }
                 }
             }
             else
             {
-                // If using synchronous mode, just flush
+                // If using synchronous mode, attempt a quick flush but don't block
-                await FlushAsync().ConfigureAwait(false);
-            }
-
-            // Dispose flows - they should already be flushed above
-            var disposeTasks = _concurrentFlows.Select(f => f.DisposeAsync().AsTask()).ToArray();
                 try
                 {
-                await Task.WhenAll(disposeTasks).ConfigureAwait(false);
+                    using (var cts = new CancellationTokenSource(TimeSpan.FromMilliseconds(500)))
-            }
-            catch (Exception ex)
                     {
-                // Do nothing
+                        await FlushAsync(cts.Token).ConfigureAwait(false);
+                    }
+                }
+                catch
+                {
+                    // Ignore errors during sync-mode flush
+                }
             }
 
+            // Request cancellation of the async pipeline if it's still running
+            _asyncCts?.Cancel();
             _asyncCts?.Dispose();
             GC.SuppressFinalize(this);
         }

EonaCat.LogStack/EonaCatLoggerCore/Flows/FileFlow.cs

@@ -223,7 +223,7 @@ namespace EonaCat.LogStack.Flows
             // Dedicated writer thread
             _writerThread = new Thread(WriterThreadBody)
             {
-                IsBackground = false,
+                IsBackground = true,
                 Name = "FileFlow.Writer[" + filePrefix + "]",
                 Priority = ThreadPriority.AboveNormal,
             };