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39 lines
1.5 KiB
C++
39 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 nsInterfaceRequestorAgg_h__
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#define nsInterfaceRequestorAgg_h__
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#include "nsError.h"
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class nsIEventTarget;
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class nsIInterfaceRequestor;
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/**
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* This function returns an instance of nsIInterfaceRequestor that aggregates
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* two nsIInterfaceRequestor instances. Its GetInterface method queries
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* aFirst for the requested interface and will query aSecond only if aFirst
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* failed to supply the requested interface. Both aFirst and aSecond may
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* be null, and will be released on the main thread when the aggregator is
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* destroyed.
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*/
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extern nsresult
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NS_NewInterfaceRequestorAggregation(nsIInterfaceRequestor* aFirst,
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nsIInterfaceRequestor* aSecond,
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nsIInterfaceRequestor** aResult);
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/**
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* Like the previous method, but aFirst and aSecond will be released on the
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* provided target thread.
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*/
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extern nsresult
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NS_NewInterfaceRequestorAggregation(nsIInterfaceRequestor* aFirst,
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nsIInterfaceRequestor* aSecond,
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nsIEventTarget* aTarget,
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nsIInterfaceRequestor** aResult);
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#endif // !defined( nsInterfaceRequestorAgg_h__ )
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