mirror of
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46 lines
1.1 KiB
C++
46 lines
1.1 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 nsXPTCUtils_h__
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#define nsXPTCUtils_h__
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#include "xptcall.h"
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#include "mozilla/MemoryReporting.h"
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/**
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* A helper class that initializes an xptcall helper at construction
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* and releases it at destruction.
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*/
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class nsAutoXPTCStub : protected nsIXPTCProxy
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{
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public:
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nsISomeInterface* mXPTCStub;
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protected:
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nsAutoXPTCStub() : mXPTCStub(nullptr) {}
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nsresult
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InitStub(const nsIID& aIID)
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{
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return NS_GetXPTCallStub(aIID, this, &mXPTCStub);
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}
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~nsAutoXPTCStub()
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{
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if (mXPTCStub) {
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NS_DestroyXPTCallStub(mXPTCStub);
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}
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}
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size_t
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SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
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{
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return mXPTCStub ? NS_SizeOfIncludingThisXPTCallStub(mXPTCStub, aMallocSizeOf) : 0;
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}
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};
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#endif // nsXPTCUtils_h__
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