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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_X11_X11_ERROR_TRACKER_H_
#define BASE_X11_X11_ERROR_TRACKER_H_
#include <X11/Xlib.h>
#include "base/base_export.h"
#include "base/basictypes.h"
namespace base {
// X11ErrorTracker catches X11 errors in a non-fatal way. It does so by
// temporarily changing the X11 error handler. The old error handler is
// restored when the tracker is destroyed.
class BASE_EXPORT X11ErrorTracker {
public:
X11ErrorTracker();
~X11ErrorTracker();
// Returns whether an X11 error happened since this function was last called
// (or since the creation of the tracker). This is potentially expensive,
// since this causes a sync with the X server.
bool FoundNewError();
private:
#if !defined(TOOLKIT_GTK)
XErrorHandler old_handler_;
#endif
DISALLOW_COPY_AND_ASSIGN(X11ErrorTracker);
};
} // namespace base
#endif // BASE_X11_X11_ERROR_TRACKER_H_
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