webrtc/rtc_base/keep_ref_until_done.h
Mirko Bonadei bb547203bf Moving src/webrtc into src/.
In order to eliminate the WebRTC Subtree mirror in Chromium, 
WebRTC is moving the content of the src/webrtc directory up
to the src/ directory.

NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
TBR=tommi@webrtc.org

Bug: chromium:611808
Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38
Reviewed-on: https://webrtc-review.googlesource.com/1560
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#19845}
2017-09-15 04:25:06 +00:00

43 lines
1.4 KiB
C++

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