59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef DOM_QUOTA_TARGETPTRHOLDER_H_
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#define DOM_QUOTA_TARGETPTRHOLDER_H_
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#include "mozilla/RefPtr.h"
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#include "nsCOMPtr.h"
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#include "nsProxyRelease.h"
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#include "nsThreadUtils.h"
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namespace mozilla::dom::quota {
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// TODO: Remove this ad hoc class when bug 1805830 is fixed.
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template <typename T>
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class TargetPtrHolder {
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public:
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MOZ_IMPLICIT TargetPtrHolder(T* aRawPtr)
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: mTarget(GetCurrentSerialEventTarget()), mPtr(aRawPtr) {
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MOZ_ASSERT(mPtr);
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}
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TargetPtrHolder(const TargetPtrHolder&) = default;
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TargetPtrHolder& operator=(const TargetPtrHolder&) = default;
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TargetPtrHolder(TargetPtrHolder&&) = default;
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TargetPtrHolder& operator=(TargetPtrHolder&&) = default;
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~TargetPtrHolder() {
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if (!mPtr) {
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return;
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}
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NS_ProxyRelease("TargetPtrHolder::mPtr", mTarget, mPtr.forget());
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}
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T* get() const {
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MOZ_ASSERT(mPtr);
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return mPtr.get();
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}
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T* operator->() const MOZ_NO_ADDREF_RELEASE_ON_RETURN { return get(); }
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bool operator!() { return !mPtr.get(); }
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private:
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nsCOMPtr<nsISerialEventTarget> mTarget;
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RefPtr<T> mPtr;
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};
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} // namespace mozilla::dom::quota
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#endif // DOM_QUOTA_TARGETPTRHOLDER_H_
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