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/* -*- 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/. */
#ifndef DOM_FS_SHARED_TARGETPTRHOLDER_H_
#define DOM_FS_SHARED_TARGETPTRHOLDER_H_
#include "mozilla/RefPtr.h"
#include "nsCOMPtr.h"
#include "nsProxyRelease.h"
#include "nsThreadUtils.h"
namespace mozilla::dom::fs {
// TODO: Remove this ad hoc class when bug 1805830 is fixed.
template <typename T>
class TargetPtrHolder {
public:
MOZ_IMPLICIT TargetPtrHolder(T* aRawPtr)
: mTarget(GetCurrentSerialEventTarget()), mPtr(aRawPtr) {
MOZ_ASSERT(mPtr);
}
TargetPtrHolder(const TargetPtrHolder&) = default;
TargetPtrHolder& operator=(const TargetPtrHolder&) = default;
TargetPtrHolder(TargetPtrHolder&&) = default;
TargetPtrHolder& operator=(TargetPtrHolder&&) = default;
~TargetPtrHolder() {
if (!mPtr) {
return;
}
NS_ProxyRelease("TargetPtrHolder::mPtr", mTarget, mPtr.forget());
}
T* get() const {
MOZ_ASSERT(mPtr);
return mPtr.get();
}
T* operator->() const MOZ_NO_ADDREF_RELEASE_ON_RETURN { return get(); }
bool operator!() { return !mPtr.get(); }
private:
nsCOMPtr<nsISerialEventTarget> mTarget;
RefPtr<T> mPtr;
};
} // namespace mozilla::dom::fs
#endif // DOM_FS_SHARED_TARGETPTRHOLDER_H_
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