1 /* 2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef WEBRTC_MODULES_DESKTOP_CAPTURE_X11_X_ERROR_TRAP_H_ 12 #define WEBRTC_MODULES_DESKTOP_CAPTURE_X11_X_ERROR_TRAP_H_ 13 14 #include <X11/Xlib.h> 15 16 #include "webrtc/base/constructormagic.h" 17 18 namespace webrtc { 19 20 // Helper class that registers X Window error handler. Caller can use 21 // GetLastErrorAndDisable() to get the last error that was caught, if any. 22 class XErrorTrap { 23 public: 24 explicit XErrorTrap(Display* display); 25 ~XErrorTrap(); 26 27 // Returns last error and removes unregisters the error handler. 28 int GetLastErrorAndDisable(); 29 30 private: 31 XErrorHandler original_error_handler_; 32 bool enabled_; 33 34 RTC_DISALLOW_COPY_AND_ASSIGN(XErrorTrap); 35 }; 36 37 } // namespace webrtc 38 39 #endif // WEBRTC_MODULES_DESKTOP_CAPTURE_X11_X_ERROR_TRAP_H_ 40
