46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
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/*
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* Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_AUDIO_SCOPED_VOE_INTERFACE_H_
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#define WEBRTC_AUDIO_SCOPED_VOE_INTERFACE_H_
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#include "webrtc/base/checks.h"
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namespace webrtc {
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class VoiceEngine;
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namespace internal {
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// Utility template for obtaining and holding a reference to a VoiceEngine
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// interface and making sure it is released when this object goes out of scope.
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template<class T> class ScopedVoEInterface {
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public:
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explicit ScopedVoEInterface(webrtc::VoiceEngine* e)
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: ptr_(T::GetInterface(e)) {
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RTC_DCHECK(ptr_);
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}
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~ScopedVoEInterface() {
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if (ptr_) {
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ptr_->Release();
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}
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}
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T* operator->() {
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RTC_DCHECK(ptr_);
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return ptr_;
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}
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private:
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T* ptr_;
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};
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} // namespace internal
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} // namespace webrtc
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#endif // WEBRTC_AUDIO_SCOPED_VOE_INTERFACE_H_
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