/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla IPC.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2002
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Darin Fisher <darin@netscape.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsISupports.idl"

/**
 * ipcIMessageObserver
 */
[scriptable, uuid(e40a4a3c-2dc1-470e-ab7f-5675fe1f1384)]
interface ipcIMessageObserver : nsISupports
{
    /**
     * @param aSenderID
     *        the client id of the sender of this message.  if sent by the
     *        daemon (or a deamon module), then this will have a value of 0.
     * @param aTarget
     *        the target of the message, corresponding to the target this
     *        observer was registered under.  this parameter is passed to allow
     *        an observer instance to receive messages for more than one target.
     * @param aData
     *        the data of the message.
     * @param aDataLen
     *        the data length of the message.
     */
    void onMessageAvailable(in unsigned long aSenderID,
                            in nsIDRef       aTarget,
                           [array, const, size_is(aDataLen)]
                            in octet         aData,
                            in unsigned long aDataLen);
};