Escl: Throw DeviceOfflineException when a connection times out

cyanfish · Apr 7, 2024 · 5309d5f · 5309d5f
1 parent 7b9c64a
commit 5309d5f
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/NAPS2.Sdk/Scan/Internal/Escl/EsclScanDriver.cs b/NAPS2.Sdk/Scan/Internal/Escl/EsclScanDriver.cs
@@ -141,6 +141,13 @@ public async Task GetDevices(ScanOptions options, CancellationToken cancelToken,
                 throw;
             }
         }
+        catch (HttpRequestException ex) when (ex.InnerException is TaskCanceledException)
+        {
+            // A connection timeout manifests as TaskCanceledException
+            // TODO: Do we want to add a DeviceCommunicationException? It might be more appropriate here
+            // (and maps to WIA too)
+            throw new DeviceOfflineException();
+        }
         catch (TaskCanceledException)
         {
         }