[WASI] Skip signal handler registration on WASI

WASI does not support POSIX signals, but `Microsoft.Extensions.Hosting` works fine as long as we don't try to register or deregister signal handlers. Signed-off-by: Joel Dice <[email protected]>
dotnet · Nov 14, 2024 · b45da08 · b45da08
1 parent 099bf1e
commit b45da08
Showing 1 changed file with 13 additions and 7 deletions.
diff --git a/src/libraries/Microsoft.Extensions.Hosting/src/Internal/ConsoleLifetime.netcoreapp.cs b/src/libraries/Microsoft.Extensions.Hosting/src/Internal/ConsoleLifetime.netcoreapp.cs
@@ -15,10 +15,13 @@ public partial class ConsoleLifetime : IHostLifetime
 
         private partial void RegisterShutdownHandlers()
         {
-            Action<PosixSignalContext> handler = HandlePosixSignal;
-            _sigIntRegistration = PosixSignalRegistration.Create(PosixSignal.SIGINT, handler);
-            _sigQuitRegistration = PosixSignalRegistration.Create(PosixSignal.SIGQUIT, handler);
-            _sigTermRegistration = PosixSignalRegistration.Create(PosixSignal.SIGTERM, handler);
+            if (!OperatingSystem.IsWasi())
+            {
+                Action<PosixSignalContext> handler = HandlePosixSignal;
+                _sigIntRegistration = PosixSignalRegistration.Create(PosixSignal.SIGINT, handler);
+                _sigQuitRegistration = PosixSignalRegistration.Create(PosixSignal.SIGQUIT, handler);
+                _sigTermRegistration = PosixSignalRegistration.Create(PosixSignal.SIGTERM, handler);
+            }
         }
 
         private void HandlePosixSignal(PosixSignalContext context)
@@ -31,9 +34,12 @@ private void HandlePosixSignal(PosixSignalContext context)
 
         private partial void UnregisterShutdownHandlers()
         {
-            _sigIntRegistration?.Dispose();
-            _sigQuitRegistration?.Dispose();
-            _sigTermRegistration?.Dispose();
+            if (!OperatingSystem.IsWasi())
+            {
+                _sigIntRegistration?.Dispose();
+                _sigQuitRegistration?.Dispose();
+                _sigTermRegistration?.Dispose();
+            }
         }
     }
 }