Fix handle of error only events.

1 files changed, 12 insertions, 12 deletions

diff --git a/lib/upcoming/asyncdispatch.nim b/lib/upcoming/asyncdispatch.nim
index 29b955c46..731ef52dc 100644
--- a/lib/upcoming/asyncdispatch.nim
+++ b/lib/upcoming/asyncdispatch.nim
@@ -1194,21 +1194,21 @@ else:
         var fd = keys[i].fd.SocketHandle
         let events = keys[i].events
 
-        if Event.Read in events:
+        if Event.Read in events or events == {Event.Error}:
           let cb = keys[i].data.readCB
-          doAssert(cb != nil)
-          if cb(fd.AsyncFD):
-            p.selector.withData(fd, adata) do:
-              if adata.readCB == cb:
-                adata.readCB = nil
+          if cb != nil:
+            if cb(fd.AsyncFD):
+              p.selector.withData(fd, adata) do:
+                if adata.readCB == cb:
+                  adata.readCB = nil
 
-        if Event.Write in events:
+        if Event.Write in events or events == {Event.Error}:
           let cb = keys[i].data.writeCB
-          doAssert(cb != nil)
-          if cb(fd.AsyncFD):
-            p.selector.withData(fd, adata) do:
-              if adata.writeCB == cb:
-                adata.writeCB = nil
+          if cb != nil:
+            if cb(fd.AsyncFD):
+              p.selector.withData(fd, adata) do:
+                if adata.writeCB == cb:
+                  adata.writeCB = nil
 
         when supportedPlatform:
           if (customSet * events) != {}: