gecko-dev/xpcom/threads/LeakRefPtr.h
Sylvestre Ledru 265e672179 Bug 1511181 - Reformat everything to the Google coding style r=ehsan a=clang-format
# ignore-this-changeset

--HG--
extra : amend_source : 4d301d3b0b8711c4692392aa76088ba7fd7d1022
2018-11-30 11:46:48 +01:00

49 lines
1.2 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* Smart pointer which leaks its owning refcounted object by default. */
#ifndef LeakRefPtr_h
#define LeakRefPtr_h
#include "mozilla/AlreadyAddRefed.h"
namespace mozilla {
/**
* Instance of this class behaves like a raw pointer which leaks the
* resource it's owning if not explicitly released.
*/
template <class T>
class LeakRefPtr {
public:
explicit LeakRefPtr(already_AddRefed<T>&& aPtr) : mRawPtr(aPtr.take()) {}
explicit operator bool() const { return !!mRawPtr; }
LeakRefPtr<T>& operator=(already_AddRefed<T>&& aPtr) {
mRawPtr = aPtr.take();
return *this;
}
T* get() const { return mRawPtr; }
already_AddRefed<T> take() {
T* rawPtr = mRawPtr;
mRawPtr = nullptr;
return already_AddRefed<T>(rawPtr);
}
void release() { NS_RELEASE(mRawPtr); }
private:
T* MOZ_OWNING_REF mRawPtr;
};
} // namespace mozilla
#endif // LeakRefPtr_h