Important Update:

- SelectCore:
  - Bug fix: only remove handle from read/write list if different function

SelectCore.cpp

@@ -93,19 +93,22 @@ void CSelect::Add( int FD, bool Read, bool Write, CSelectableCore * Function )
     while (*Handle && ((*Handle)->FD != FD)) {
         Handle = &((*Handle)->Next);
     }
-    if (*Handle) {
+    if (!*Handle) {
-        // Old handle not yet removed, remove from read/write lists
-        Remove( FD, true, true );
-    }
-    else {
         // Create if not exist
         *Handle = (TSelectHandle*)malloc( sizeof(TSelectHandle) );
         memset( *Handle, 0, sizeof(TSelectHandle) );
-        (*Handle)->FD = FD;
-    }
 
-    // Set Parameters
+        // Set Parameters
-    (*Handle)->Function = Function;
+        (*Handle)->FD = FD;
+        (*Handle)->Function = Function;
+    }
+    else if ((*Handle)->Function != Function) {
+        // Old handle for another function, not yet removed, remove from read/write lists
+        Remove( FD, true, true );
+
+        // Overwrite Parameters
+        (*Handle)->Function = Function;
+    }
 
     // Add Read select
     if (Read && !(*Handle)->Read) {