/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */




#include "TargetEventListener.h"
#include "TargetEvent.h"
#include "Exceptions.h"
#include "Trace.h"
#include "sun_fc.h"

/**
 * @memo            Create a new TargetEvent listener
 * @postcondition   Listener ready to receive callbacks
 * @exception       BadArgumentException
 * @param           myCallback  The listeners callback routine
 * @param           data        Opaque data that will be passed to the
 *                              callback routine when and event comes in.
 */
TargetEventListener::TargetEventListener(HBAPort *myPort,
        TargetCallback myCallback, void *data, uint64_t wwn, bool myFilter) :
        port(myPort), Listener(data), callback(myCallback), targetPortWWN(wwn),
        filter(myFilter) {

        Trace log("TargetEventListener::TargetEventListener");
        if (callback == NULL) {
            throw BadArgumentException();
        }
}

/**
 * @memo            Send the event to this listener
 * @param           event   The event to send to the listener
 *
 * @doc             The callback registered in the constructor will
 *                  be called.
 */
void TargetEventListener::dispatch(Event &event) {
        Trace log("TargetEventListener::dispatch");
        TargetEvent *e = static_cast<TargetEvent*> (&event);
        if (e != NULL) {
            HBA_WWN hbawwn;
            uint64_t hbalwwn = e->getHBAPortWWN();
            // Filter out unwanted events
            if (port->getPortWWN() != hbalwwn) {
                return;
            }
            if (filter) {
                if (targetPortWWN != e->getTargetPortWWN()) {
                    return;
                }
            }
            hbalwwn = htonll(hbalwwn);
            memcpy(&hbawwn, &hbalwwn, sizeof (hbawwn));
            HBA_WWN tgtwwn;
            uint64_t tgtlwwn = htonll(e->getTargetPortWWN());
            memcpy(&tgtwwn, &tgtlwwn, sizeof (tgtwwn));
            callback(getData(), hbawwn, tgtwwn, e->getType());
        } else {
            log.internalError("Unexpected event type.");
        }
}