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 */ 50 class FCSyseventBridge : 51 public AdapterAddEventBridge, 52 public AdapterEventBridge, 53 public AdapterPortEventBridge, 54 public AdapterDeviceEventBridge, 55 public TargetEventBridge, 56 public Lockable { 57 public: 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 76 private: FCSyseventBridge()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