/* 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/. */
#include "nsISupports.idl"
interface nsIRunnable;
/**
* Handle for the ongoing shutdown progress of a given thread which can be used
* to observe and interrupt async shutdown progress . Methods on this interface
* may generally only be used on the thread which called
* ` nsIThread : : beginShutdown ` .
*/
[scriptable, builtinclass, uuid(
70 a43748-
6130 -
4 ea6-a440-
7 c74e1b7dd7c)]
interface nsIThreadShutdown : nsISupports
{
/**
* Register a runnable to be executed when the thread has completed shutdown ,
* or shutdown has been cancelled due to ` stopWaitingAndLeakThread ( ) ` .
*
* If the thread has already completed or cancelled shutdown , the runnable
* may be executed synchronously .
*
* May only be called on the thread which invoked ` nsIThread : : beginShutdown ` .
*/
void onCompletion(in nsIRunnable aEvent);
/**
* Check if the target thread has completed shutdown .
*
* May only be accessed on the thread which called ` nsIThread : : beginShutdown ` .
*/
[infallible] readonly attribute boolean completed;
/**
* Give up on waiting for the shutting down thread to exit . Calling this
* method will allow the thread to continue running , no longer block shutdown ,
* and the thread will never be joined or have its resources reclaimed .
*
* Completion callbacks attached to this ` nsIThreadShutdown ` may be executed
* during this call .
*
* This method should NOT be called except in exceptional circumstances during
* shutdown , as it will cause resources for the shutting down thread to be
* leaked .
*
* May only be called on the thread which called ` nsIThread : : beginShutdown `
*
* @ throws NS_ERROR_NOT_AVAILABLE
* Indicates that the target thread has already stopped running and a
* request to be joined is already being dispatched to the waiting thread .
*/
void stopWaitingAndLeakThread();
};
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