/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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 "nsCycleCollectionParticipant.h"

#include "nsCOMPtr.h"

NS_IMETHODIMP_(void)

nsXPCOMCycleCollectionParticipant::Root(void* aPtr)

{

  nsISupports* s = static_cast<nsISupports*>(aPtr);

  NS_ADDREF(s);

}

NS_IMETHODIMP_(void)

nsXPCOMCycleCollectionParticipant::Unroot(void* aPtr)

{

  nsISupports* s = static_cast<nsISupports*>(aPtr);

  NS_RELEASE(s);

}

// We define a default trace function because some participants don't need

// to trace anything, so it is okay for them not to define one.

NS_IMETHODIMP_(void)

nsXPCOMCycleCollectionParticipant::Trace(void* aPtr, const TraceCallbacks& aCb,

                                         void* aClosure)

{

}

bool

nsXPCOMCycleCollectionParticipant::CheckForRightISupports(nsISupports* aSupports)

{

  nsISupports* foo;

  aSupports->QueryInterface(NS_GET_IID(nsCycleCollectionISupports),

                            reinterpret_cast<void**>(&foo));

  return aSupports == foo;

}