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#ifndef	_FCSYSEVENTBRIDGE_H
27#define	_FCSYSEVENTBRIDGE_H
28
29
30
31#include "AdapterAddEventBridge.h"
32#include "AdapterEventBridge.h"
33#include "AdapterPortEventBridge.h"
34#include "AdapterDeviceEventBridge.h"
35#include "TargetEventBridge.h"
36#include "Lockable.h"
37#include <vector>
38#include <libsysevent.h>
39
40/**
41 * Note: Even though we take various arguments in within the API,
42 * we don't actually filter anything, since sys-even is either on
43 * or off.  The idea is that the actual Listener themselves will perform
44 * a final filter pass, so why do the work twice.  If we were going to
45 * use proprietary IOCTLs or some other event plumbing that allowed filtering,
46 * we could use the passed in arguments to do useful work.  In short,
47 * once turned on, we send events of a given type and rely on
48 * someone downstream to filter.
49 */
50class FCSyseventBridge :
51	public AdapterAddEventBridge,
52	public AdapterEventBridge,
53	public AdapterPortEventBridge,
54	public AdapterDeviceEventBridge,
55	public TargetEventBridge,
56	public Lockable {
57public:
58    static FCSyseventBridge* getInstance();
59    virtual int32_t getMaxListener();
60    virtual void addListener(AdapterAddEventListener *listener);
61    virtual void addListener(AdapterEventListener *listener, HBA *hba);
62    virtual void addListener(AdapterPortEventListener *listener, HBAPort *port);
63    virtual void addListener(AdapterDeviceEventListener *listener,
64	     HBAPort *port);
65    virtual void addListener(TargetEventListener *listener,
66	    HBAPort *port, uint64_t targetWWN, bool filter);
67    virtual void removeListener(AdapterAddEventListener *listener);
68    virtual void removeListener(AdapterEventListener *listener);
69    virtual void removeListener(AdapterPortEventListener *listener);
70    virtual void removeListener(AdapterDeviceEventListener *listener);
71    virtual void removeListener(TargetEventListener *listener);
72
73    /* Private function, called by handler.  Friend maybe? */
74    void dispatch(sysevent_t *ev);
75
76private:
77    FCSyseventBridge() :handle(NULL) { }
78    /**
79     * Subscribe if we need to, or unsubscribe if nobody is left
80     * Instance lock must already be held!
81     */
82    void validateRegistration();
83    sysevent_handle_t *handle;
84    static FCSyseventBridge*	_instance;
85
86
87    std::vector<AdapterAddEventListener*>	adapterAddEventListeners;
88    std::vector<AdapterEventListener*>		adapterEventListeners;
89    std::vector<AdapterPortEventListener*>	adapterPortEventListeners;
90    std::vector<AdapterDeviceEventListener*>	adapterDeviceEventListeners;
91    std::vector<TargetEventListener*>		targetEventListeners;
92};
93
94#endif /* _FCSYSEVENTBRIDGE_H */
95