OLD | NEW |
1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef UI_GFX_X_X11_ERROR_TRACKER_H_ | 5 #ifndef UI_GFX_X_X11_ERROR_TRACKER_H_ |
6 #define UI_GFX_X_X11_ERROR_TRACKER_H_ | 6 #define UI_GFX_X_X11_ERROR_TRACKER_H_ |
7 | 7 |
8 #include <X11/Xlib.h> | 8 #include <X11/Xlib.h> |
9 | 9 |
10 #include "base/basictypes.h" | 10 #include "base/macros.h" |
11 #include "ui/gfx/gfx_export.h" | 11 #include "ui/gfx/gfx_export.h" |
12 | 12 |
13 namespace gfx { | 13 namespace gfx { |
14 | 14 |
15 // X11ErrorTracker catches X11 errors in a non-fatal way. It does so by | 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 | 16 // temporarily changing the X11 error handler. The old error handler is |
17 // restored when the tracker is destroyed. | 17 // restored when the tracker is destroyed. |
18 class GFX_EXPORT X11ErrorTracker { | 18 class GFX_EXPORT X11ErrorTracker { |
19 public: | 19 public: |
20 X11ErrorTracker(); | 20 X11ErrorTracker(); |
21 ~X11ErrorTracker(); | 21 ~X11ErrorTracker(); |
22 | 22 |
23 // Returns whether an X11 error happened since this function was last called | 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, | 24 // (or since the creation of the tracker). This is potentially expensive, |
25 // since this causes a sync with the X server. | 25 // since this causes a sync with the X server. |
26 bool FoundNewError(); | 26 bool FoundNewError(); |
27 | 27 |
28 private: | 28 private: |
29 XErrorHandler old_handler_; | 29 XErrorHandler old_handler_; |
30 | 30 |
31 DISALLOW_COPY_AND_ASSIGN(X11ErrorTracker); | 31 DISALLOW_COPY_AND_ASSIGN(X11ErrorTracker); |
32 }; | 32 }; |
33 | 33 |
34 } // namespace gfx | 34 } // namespace gfx |
35 | 35 |
36 #endif // UI_GFX_X_X11_ERROR_TRACKER_H_ | 36 #endif // UI_GFX_X_X11_ERROR_TRACKER_H_ |
OLD | NEW |