xpcom/threads/nsIThreadManager.idl
author James Willcox <jwillcox@mozilla.com>
Mon, 30 Jan 2012 16:47:19 -0500
changeset 88195 b735935813b2174fed1330293f25802c673b43ae
parent 74180 c56067ea79887064167c21a7110b2becefe5be45
child 98529 f4157e8c410708d76703f19e4dfb61859bfe32d8
permissions -rw-r--r--
Bug 719872 (part 1) - Backout 8de271eee34b r=mattwoodrow DONTBUILD

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * The Original Code is Mozilla code.
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 * The Initial Developer of the Original Code is Google Inc.
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 *
 * Contributor(s):
 *  Darin Fisher <darin@meer.net>
 *
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#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;
};