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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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, so that calling run() on the task is a no-op.
* Calling cancel after the task execution has begun 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() = default;
virtual ~nsICancelableRunnable() = default;
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsICancelableRunnable, NS_ICANCELABLERUNNABLE_IID)
#endif // nsICancelableRunnable_h__
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