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39 lines
1.2 KiB
C++
39 lines
1.2 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 nsICancelableRunnable_h__
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#define nsICancelableRunnable_h__
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#include "nsISupports.h"
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#define NS_ICANCELABLERUNNABLE_IID \
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{ 0xde93dc4c, 0x5eea, 0x4eb7, \
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{ 0xb6, 0xd1, 0xdb, 0xf1, 0xe0, 0xce, 0xf6, 0x5c } }
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class nsICancelableRunnable : public nsISupports
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{
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_ICANCELABLERUNNABLE_IID)
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/*
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* Cancels a pending task. If the task has already been executed this will
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* be a no-op. Calling this method twice is considered an error.
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*
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* @throws NS_ERROR_UNEXPECTED
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* Indicates that the runnable has already been canceled.
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*/
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virtual nsresult Cancel() = 0;
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protected:
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nsICancelableRunnable() { }
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virtual ~nsICancelableRunnable() {}
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsICancelableRunnable,
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NS_ICANCELABLERUNNABLE_IID)
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#endif // nsICancelableRunnable_h__
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