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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 nsICancelableRunnable_h__
#define nsICancelableRunnable_h__
#include "nsISupports.h"
#define NS_ICANCELABLERUNNABLE_IID \
{ 0xde93dc4c, 0x5eea, 0x4eb7, \
{ 0xb6, 0xd1, 0xdb, 0xf1, 0xe0, 0xce, 0xf6, 0x5c } }
class nsICancelableRunnable : public nsISupports
{
public:
NS_DECLARE_STATIC_IID_ACCESSOR(NS_ICANCELABLERUNNABLE_IID)
/*
* Cancels a pending task. If the task has already been executed this will
* be a no-op. Calling this method twice is considered an error.
*
* @throws NS_ERROR_UNEXPECTED
* Indicates that the runnable has already been canceled.
*/
virtual nsresult Cancel() = 0;
protected:
nsICancelableRunnable() { }
virtual ~nsICancelableRunnable() {}
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsICancelableRunnable,
NS_ICANCELABLERUNNABLE_IID)
#endif // nsICancelableRunnable_h__
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