fixes

src/CI/azp-initialization.yaml

@@ -1,10 +1,14 @@
 steps:
+  - powershell: |
+      Write-Host "##vso[task.setvariable variable=DotnetRuntimeVersion;]8.0.0"
+      Write-Host "##vso[task.setvariable variable=DOTNET_NOLOGO;]true"
+      displayName: 'Use .NET Runtime 8.0.0'
 
   - task: UseDotNet@2
-    displayName: 'Use .NET SDK 5.0.408'
+    displayName: 'Use .NET SDK 8.x'
     inputs:
       packageType: 'sdk'
-      version: '5.0.408'
+      version: 8.x
 
     # Read $(Version) from the UiPath.CoreIpc.csproj file
   - powershell: |

src/CI/azp-nodejs.yaml

@@ -54,7 +54,7 @@
     condition: succeededOrFailed()
     inputs:
       testRunner: JUnit
-        workingDir: $(NodeJS_ProjectPath)
+      workingDir: $(NodeJS_ProjectPath)
       testResultsFiles: './src/Clients/js/reports/test/web/test-results.xml'
 
   - task: PublishTestResults@2

src/CI/azp-start.yaml

@@ -22,9 +22,8 @@ variables:
 stages:
 - stage: Build
   displayName: '🏭 Build' 
-jobs:
-  # The following 3 jobs will run in parallel:
-
+  jobs:
+  # The following 3 jobs will run in parallel:            
   - job:
     displayName: '.NET on Windows'
     pool:

src/UiPath.CoreIpc.Tests/Implementation/SystemService.cs

@@ -36,11 +36,7 @@ public class SystemMessage : Message
 }
 public class CancelIoPipeMessage : Message
 {
-    public CancelIoPipeMessage(int delayScecondCancel = 0)
-    {
-        DelayScecondCancel = delayScecondCancel;
-    }
-    public int DelayScecondCancel { get; set; }
+    public int[]? MsDelays { get; set; }
 }
 public class SystemService : ISystemService
 {
@@ -190,16 +186,17 @@ public async Task<Stream> Echo(Stream input, CancellationToken cancellationToken
     public static extern bool CancelIoEx(IntPtr handle, IntPtr lpOverlapped);
     public async Task<bool> CancelIoPipe(CancelIoPipeMessage message = null, CancellationToken cancellationToken = default)
     {
+        Debug.WriteLine("###################### CancelIoPipe");
         await Task.Delay(50);
 #if WINDOWS
-            var networkPropertyInfo = message.Client.GetType().GetProperty("Network", BindingFlags.NonPublic | BindingFlags.Instance);
-            var pipeStream = networkPropertyInfo.GetValue(message.Client, null) as PipeStream;
+            var serverFieldInfo = message.Client.GetType().GetField("_server", BindingFlags.NonPublic | BindingFlags.Instance);
+            var pipeStream = serverFieldInfo.GetValue(message.Client) as PipeStream;
 
             var canceled = CancelIoEx(pipeStream.SafePipeHandle.DangerousGetHandle(), IntPtr.Zero);
-
-            if (message.DelayScecondCancel > 0)
+            
+            foreach (var msDelay in message.MsDelays ?? [])
             {
-                await Task.Delay(message.DelayScecondCancel);
+                await Task.Delay(msDelay);
                 canceled = CancelIoEx(pipeStream.SafePipeHandle.DangerousGetHandle(), IntPtr.Zero);
             }
 

src/UiPath.CoreIpc.Tests/NamedPipeTests.cs

@@ -40,28 +40,35 @@ public async Task PipeSecurityForWindows()
         await CreateSystemService().DoNothing().ShouldThrowAsync<UnauthorizedAccessException>();
     }
 
-    [Fact]
-        public async Task PipeCancelIoOnServer_TwiceTightly()
-        {
-            //Two cancel with less than 1 second in between should fail
-            await _systemClient.CancelIoPipe(new(100)).ShouldThrowAsync<IOException>();
-        }
+    [Theory]
+    [InlineData(new int[0])]
+    [InlineData(100)]
+    [InlineData(1100)]
+    [InlineData(10, 10, 10, 10)]
+    public async Task PipeCancelIoOnServer_AnyNoOfTimes(params int[] msDelays)
+    {
+        // Any number of kernel32.CancelIoEx calls should not cause the client to give up on the connection.
+        (await _systemClient.CancelIoPipe(new() { MsDelays = msDelays })).ShouldBeTrue();
 
-        [Fact]
-        public async Task PipeCancelIoOnClient()
-        {
-            (await _systemClient.Delay()).ShouldBeTrue();
+        //Make sure the connection is still working
+        (await _systemClient.Delay()).ShouldBeTrue();
+    }
 
-            var delayTask = _systemClient.Delay(500);
-            await Task.Delay(100);
-            var pipeStream = ((IpcProxy)_systemClient).Connection.Network as PipeStream;
-            SystemService.CancelIoEx(pipeStream.SafePipeHandle.DangerousGetHandle(), IntPtr.Zero).ShouldBeTrue();
+    [Fact]
+    public async Task PipeCancelIoOnClient()
+    {
+        (await _systemClient.Delay()).ShouldBeTrue();
+
+        var delayTask = _systemClient.Delay(500);
+        await Task.Delay(100);
+        var pipeStream = ((IpcProxy)_systemClient).Connection.Network as PipeStream;
+        SystemService.CancelIoEx(pipeStream.SafePipeHandle.DangerousGetHandle(), IntPtr.Zero).ShouldBeTrue();
 
-            (await delayTask).ShouldBeTrue();
+        (await delayTask).ShouldBeTrue();
 
-            //Make sure the connection is still working
-            (await _systemClient.Delay()).ShouldBeTrue();
-        }
+        //Make sure the connection is still working
+        (await _systemClient.Delay()).ShouldBeTrue();
+    }
 #endif
 }
 public class ComputingNamedPipeTests : ComputingTests<NamedPipeClientBuilder<IComputingService, IComputingCallback>>

src/UiPath.CoreIpc.Tests/SystemTests.cs

@@ -5,7 +5,7 @@ namespace UiPath.CoreIpc.Tests;
 public abstract class SystemTests<TBuilder> : TestBase where TBuilder : ServiceClientBuilder<TBuilder, ISystemService>
 {
     protected ServiceHost _systemHost;
-    protected ISystemService _systemClient;
+    protected readonly ISystemService _systemClient;
     protected readonly SystemService _systemService;
     public SystemTests()
     {

src/UiPath.CoreIpc.Tests/TestBase.cs

@@ -8,9 +8,10 @@ public abstract class TestBase : IDisposable
     protected static int Count = -1;
     public static readonly TimeSpan RequestTimeout =
 #if CI
-        TimeSpan.FromSeconds(2) +
+        TimeSpan.FromSeconds(3) +
 #endif
-        (Debugger.IsAttached ? TimeSpan.FromDays(1) : TimeSpan.FromSeconds(2));
+        TimeSpan.FromSeconds(3);
+        // (Debugger.IsAttached ? TimeSpan.FromDays(1) : TimeSpan.FromSeconds(2));
     protected readonly IServiceProvider _serviceProvider;
     protected readonly AsyncContext _guiThread = new AsyncContextThread().Context;
 

src/UiPath.CoreIpc.Tests/UiPath.CoreIpc.Tests.csproj

@@ -6,6 +6,7 @@
     <DefineConstants>$(DefineConstants);$(DefineConstantsEx)</DefineConstants>
     <LangVersion>latest</LangVersion>
     <ImplicitUsings>true</ImplicitUsings>
+    <Nullable>annotations</Nullable>
   </PropertyGroup>
 
   <ItemGroup>

src/UiPath.CoreIpc.Tests/WebSocketTests.cs

@@ -2,7 +2,7 @@
 namespace UiPath.CoreIpc.Tests;
 public class SystemWebSocketTests : SystemTests<WebSocketClientBuilder<ISystemService>>
 {
-    int _port = 1313 + GetCount();
+    int _port = 51313 + GetCount();
     HttpSysWebSocketsListener _listener;
     protected override ServiceHostBuilder Configure(ServiceHostBuilder serviceHostBuilder)
     {