1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_X11_X11_ERROR_TRACKER_H_ 6 #define BASE_X11_X11_ERROR_TRACKER_H_ 7 8 #include <X11/Xlib.h> 9 10 #include "base/base_export.h" 11 #include "base/basictypes.h" 12 13 namespace base { 14 15 // X11ErrorTracker catches X11 errors in a non-fatal way. It does so by 16 // temporarily changing the X11 error handler. The old error handler is 17 // restored when the tracker is destroyed. 18 class BASE_EXPORT X11ErrorTracker { 19 public: 20 X11ErrorTracker(); 21 ~X11ErrorTracker(); 22 23 // Returns whether an X11 error happened since this function was last called 24 // (or since the creation of the tracker). This is potentially expensive, 25 // since this causes a sync with the X server. 26 bool FoundNewError(); 27 28 private: 29 #if !defined(TOOLKIT_GTK) 30 XErrorHandler old_handler_; 31 #endif 32 33 DISALLOW_COPY_AND_ASSIGN(X11ErrorTracker); 34 }; 35 36 } // namespace base 37 38 #endif // BASE_X11_X11_ERROR_TRACKER_H_ 39
