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1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
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2 /* This Source Code Form is subject to the terms of the Mozilla Public |
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3 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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5 |
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6 #include "nsIRunnable.idl" |
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7 |
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8 /** |
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9 * Represents a task which can be dispatched to a thread for execution and |
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10 * which can be cancelled if necessary. |
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11 */ |
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12 |
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13 [scriptable, uuid(de93dc4c-5eea-4eb7-b6d1-dbf1e0cef65c)] |
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14 interface nsICancelableRunnable : nsIRunnable |
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15 { |
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16 /** |
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17 * Cancels a pending task. If the task has already been executed this will |
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18 * be a no-op. Calling this method twice is considered an error. |
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19 * |
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20 * @throws NS_ERROR_UNEXPECTED |
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21 * Indicates that the runnable has already been canceled. |
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22 */ |
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23 void cancel(); |
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24 }; |