/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 nsIURI;
interface nsIInterfaceRequestor;
interface nsIEventTarget;

[scriptable, uuid(b3c53863-1313-480a-90a2-5b0da651ee5e)]
interface nsISpeculativeConnect : nsISupports
{
    /**
     * Called as a hint to indicate a new transaction for the URI is likely coming
     * soon. The implementer may use this information to start a TCP
     * and/or SSL level handshake for that resource immediately so that it is
     * ready and/or progressed when the transaction is actually submitted.
     *
     * No obligation is taken on by the implementer, nor is the submitter obligated
     * to actually open the new channel. 
     *
     * @param aURI the URI of the hinted transaction
     * @param aCallbacks any security callbacks for use with SSL for interfaces
     *        such as nsIBadCertListener. May be null.
     * @param aTarget the thread on which the release of the callbacks will
     *        occur. May be null for "any thread".
     *
     */
    void speculativeConnect(in nsIURI aURI,
                            in nsIInterfaceRequestor aCallbacks,
                            in nsIEventTarget aTarget);

};