gecko-dev/xpcom/threads/nsIThreadManager.idl
2012-05-21 12:12:37 +01:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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"
[ptr] native PRThread(PRThread);
interface nsIThread;
/**
* An interface for creating and locating nsIThread instances.
*/
[scriptable, uuid(2bbbc38c-cf96-4099-ba6b-f6a44d8b014c)]
interface nsIThreadManager : nsISupports
{
/**
* Default number of bytes reserved for a thread's stack, if no stack size
* is specified in newThread(). 0 means use platform default.
*/
const unsigned long DEFAULT_STACK_SIZE = 0;
/**
* Create a new thread (a global, user PRThread).
*
* @param creationFlags
* Reserved for future use. Pass 0.
* @param stackSize
* Number of bytes to reserve for the thread's stack.
*
* @returns
* The newly created nsIThread object.
*/
nsIThread newThread(in unsigned long creationFlags, [optional] in unsigned long stackSize);
/**
* Get the nsIThread object (if any) corresponding to the given PRThread.
* This method returns null if there is no corresponding nsIThread.
*
* @param prthread
* The PRThread of the nsIThread being requested.
*
* @returns
* The nsIThread object corresponding to the given PRThread or null if no
* such nsIThread exists.
*/
[noscript] nsIThread getThreadFromPRThread(in PRThread prthread);
/**
* Get the main thread.
*/
readonly attribute nsIThread mainThread;
/**
* Get the current thread. If the calling thread does not already have a
* nsIThread associated with it, then a new nsIThread will be created and
* associated with the current PRThread.
*/
readonly attribute nsIThread currentThread;
/**
* This attribute is true if the calling thread is the main thread of the
* application process.
*/
readonly attribute boolean isMainThread;
/**
* This attribute is true if the calling thread is the thread on which the
* cycle collector runs.
*/
readonly attribute boolean isCycleCollectorThread;
};