blob: 269e1c865723f22f262d6649dd3d8ab5d0184169 [file] [log] [blame]
/*
* 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_BASE_KEEP_REF_UNTIL_DONE_H_
#define WEBRTC_BASE_KEEP_REF_UNTIL_DONE_H_
#include "webrtc/base/bind.h"
#include "webrtc/base/callback.h"
#include "webrtc/base/refcount.h"
#include "webrtc/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_BASE_KEEP_REF_UNTIL_DONE_H_