server: Avoid infinite loop when we're out of timers in set_win_timer server call.

server/queue.c

@@ -2581,13 +2581,21 @@ DECL_HANDLER(set_win_timer)
         }
         else
         {
+            lparam_t end_id = queue->next_timer_id;
+
             /* find a free id for it */
-            do
+            while (1)
             {
                 id = queue->next_timer_id;
                 if (--queue->next_timer_id <= 0x100) queue->next_timer_id = 0x7fff;
+
+                if (!find_timer( queue, 0, req->msg, id )) break;
+                if (queue->next_timer_id == end_id)
+                {
+                    set_win32_error( ERROR_NO_MORE_USER_HANDLES );
+                    return;
+                }
             }
-            while (find_timer( queue, 0, req->msg, id ));
         }
     }
 

server/trace.c

@@ -5136,6 +5136,7 @@ static const struct
     { "DIRECTORY_NOT_EMPTY",         STATUS_DIRECTORY_NOT_EMPTY },
     { "DISK_FULL",                   STATUS_DISK_FULL },
     { "DLL_NOT_FOUND",               STATUS_DLL_NOT_FOUND },
+    { "ERROR_NO_MORE_USER_HANDLES",  0xc0010000 | ERROR_NO_MORE_USER_HANDLES },
     { "ERROR_CLASS_ALREADY_EXISTS",  0xc0010000 | ERROR_CLASS_ALREADY_EXISTS },
     { "ERROR_CLASS_DOES_NOT_EXIST",  0xc0010000 | ERROR_CLASS_DOES_NOT_EXIST },
     { "ERROR_CLASS_HAS_WINDOWS",     0xc0010000 | ERROR_CLASS_HAS_WINDOWS },