43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
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/*
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* Copyright 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 RTC_BASE_KEEP_REF_UNTIL_DONE_H_
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#define RTC_BASE_KEEP_REF_UNTIL_DONE_H_
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#include "api/scoped_refptr.h"
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#include "rtc_base/bind.h"
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#include "rtc_base/callback.h"
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#include "rtc_base/ref_count.h"
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namespace rtc {
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namespace impl {
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template <class T>
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static inline void DoNothing(const scoped_refptr<T>& object) {}
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} // namespace impl
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// KeepRefUntilDone keeps a reference to |object| until the returned
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// callback goes out of scope. If the returned callback is copied, the
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// reference will be released when the last callback goes out of scope.
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template <class ObjectT>
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static inline Callback0<void> KeepRefUntilDone(ObjectT* object) {
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return rtc::Bind(&impl::DoNothing<ObjectT>, scoped_refptr<ObjectT>(object));
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}
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template <class ObjectT>
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static inline Callback0<void> KeepRefUntilDone(
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const scoped_refptr<ObjectT>& object) {
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return rtc::Bind(&impl::DoNothing<ObjectT>, object);
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}
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} // namespace rtc
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#endif // RTC_BASE_KEEP_REF_UNTIL_DONE_H_
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