1 /* 2 * Copyright 2022 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 MODULES_PORTAL_SCOPED_GLIB_H_ 12 #define MODULES_PORTAL_SCOPED_GLIB_H_ 13 14 #include <gio/gio.h> 15 16 #include "rtc_base/checks.h" 17 18 namespace webrtc { 19 20 template <class T> 21 class Scoped { 22 public: Scoped()23 Scoped() {} Scoped(T * val)24 explicit Scoped(T* val) { ptr_ = val; } ~Scoped()25 ~Scoped() { RTC_DCHECK_NOTREACHED(); } 26 27 T* operator->() const { return ptr_; } 28 29 explicit operator bool() const { return ptr_ != nullptr; } 30 31 bool operator!() const { return ptr_ == nullptr; } 32 get()33 T* get() const { return ptr_; } 34 receive()35 T** receive() { 36 RTC_CHECK(!ptr_); 37 return &ptr_; 38 } 39 40 Scoped& operator=(T* val) { 41 RTC_DCHECK(val); 42 ptr_ = val; 43 return *this; 44 } 45 46 protected: 47 T* ptr_ = nullptr; 48 }; 49 50 template <> 51 Scoped<GError>::~Scoped(); 52 template <> 53 Scoped<char>::~Scoped(); 54 template <> 55 Scoped<GVariant>::~Scoped(); 56 template <> 57 Scoped<GVariantIter>::~Scoped(); 58 template <> 59 Scoped<GDBusMessage>::~Scoped(); 60 template <> 61 Scoped<GUnixFDList>::~Scoped(); 62 63 } // namespace webrtc 64 65 #endif // MODULES_PORTAL_SCOPED_GLIB_H_ 66