xref: /illumos-gate/usr/src/lib/sun_fc/common/TargetEventListener.cc (revision fcf3ce441efd61da9bb2884968af01cb7c1452cc)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 
27 
28 
29 #include "TargetEventListener.h"
30 #include "TargetEvent.h"
31 #include "Exceptions.h"
32 #include "Trace.h"
33 #include "sun_fc.h"
34 
35 /**
36  * @memo	    Create a new TargetEvent listener
37  * @postcondition   Listener ready to receive callbacks
38  * @exception	    BadArgumentException
39  * @param	    myCallback	The listeners callback routine
40  * @param	    data	Opaque data that will be passed to the
41  *				callback routine when and event comes in.
42  */
TargetEventListener(HBAPort * myPort,TargetCallback myCallback,void * data,uint64_t wwn,bool myFilter)43 TargetEventListener::TargetEventListener(HBAPort *myPort,
44 	TargetCallback myCallback, void *data, uint64_t wwn, bool myFilter) :
45 	port(myPort), Listener(data), callback(myCallback), targetPortWWN(wwn),
46 	filter(myFilter) {
47 
48 	Trace log("TargetEventListener::TargetEventListener");
49 	if (callback == NULL) {
50 	    throw BadArgumentException();
51 	}
52 }
53 
54 /**
55  * @memo	    Send the event to this listener
56  * @param	    event   The event to send to the listener
57  *
58  * @doc		    The callback registered in the constructor will
59  *		    be called.
60  */
dispatch(Event & event)61 void TargetEventListener::dispatch(Event &event) {
62 	Trace log("TargetEventListener::dispatch");
63 	TargetEvent *e = static_cast<TargetEvent*> (&event);
64 	if (e != NULL) {
65 	    HBA_WWN hbawwn;
66 	    uint64_t hbalwwn = e->getHBAPortWWN();
67 	    // Filter out unwanted events
68 	    if (port->getPortWWN() != hbalwwn) {
69 		return;
70 	    }
71 	    if (filter) {
72 		if (targetPortWWN != e->getTargetPortWWN()) {
73 		    return;
74 		}
75 	    }
76 	    hbalwwn = htonll(hbalwwn);
77 	    memcpy(&hbawwn, &hbalwwn, sizeof (hbawwn));
78 	    HBA_WWN tgtwwn;
79 	    uint64_t tgtlwwn = htonll(e->getTargetPortWWN());
80 	    memcpy(&tgtwwn, &tgtlwwn, sizeof (tgtwwn));
81 	    callback(getData(), hbawwn, tgtwwn, e->getType());
82 	} else {
83 	    log.internalError("Unexpected event type.");
84 	}
85 }
86