blob: 10293372284e95729568521b01744bb4fc9a4a92 [file] [log] [blame]
/*
* Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_AUDIO_SCOPED_VOE_INTERFACE_H_
#define WEBRTC_AUDIO_SCOPED_VOE_INTERFACE_H_
#include "webrtc/base/checks.h"
namespace webrtc {
class VoiceEngine;
namespace internal {
// Utility template for obtaining and holding a reference to a VoiceEngine
// interface and making sure it is released when this object goes out of scope.
template<class T> class ScopedVoEInterface {
public:
explicit ScopedVoEInterface(webrtc::VoiceEngine* e)
: ptr_(T::GetInterface(e)) {
RTC_DCHECK(ptr_);
}
~ScopedVoEInterface() {
if (ptr_) {
ptr_->Release();
}
}
T* operator->() {
RTC_DCHECK(ptr_);
return ptr_;
}
private:
T* ptr_;
};
} // namespace internal
} // namespace webrtc
#endif // WEBRTC_AUDIO_SCOPED_VOE_INTERFACE_H_