/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* 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/. */
* This interface provides a means to cancel an operation that is in progress.
interface nsICancelable : nsISupports
* Call this method to request that this object abort whatever operation it
* may be performing.
* @param aReason
* Pass a failure code to indicate the reason why this operation is
* being canceled. It is an error to pass a success code.
void cancel(in nsresult aReason);