usr/src/lib/sun_fc/common/Sun_fcRegisterForTargetEvents.cc

   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 #include "Trace.h"
  29 #include "Exceptions.h"
  30 #include "Handle.h"
  31 #include "HBA.h"
  32 #include "TargetEventListener.h"
  33 #include "sun_fc.h"
  34 #include "EventBridgeFactory.h"
  35 #ifdef  __cplusplus
  36 extern "C" {
  37 #endif
  38
  39 /**
  40  * @memo            Register for Target Event callbacks
  41  * @return          HBA_STATUS_OK if callback is registered
  42  * @param           callback The routine to call when the event occurs
  43  * @param           userData Opaque data to pass to the callback when the event
  44  *                  occurs.
  45  * @param           callbackHandle Output argument used for later removal of
  46  *                  subscription.
  47  * @param           hbaPortWWN Identifies the HBA port of interest
  48  * @param           discoveredPortWWN Identifies the requested target port
  49  * @param           allTargets If non-zero, indicates subscription is for
  50  *                  all targets, and the discoveredPortWWN argument is ignored
  51  */
  52 HBA_STATUS Sun_fcRegisterForTargetEvents(
  53             void                (*callback)(
  54                 void            *data,
  55                 HBA_WWN         hbaPortWWN,
  56                 HBA_WWN         discoveredPortWWN,
  57                 HBA_UINT32      eventType),
  58             void                *userData,
  59             HBA_HANDLE          handle,
  60             HBA_WWN             hbaPortWWN,
  61             HBA_WWN             discoveredPortWWN,
  62             HBA_CALLBACKHANDLE  *callbackHandle,
  63             HBA_UINT32          allTargets) {
  64         Trace log("Sun_fcRegisterForTargetEvents");
  65         bool filter = true;
  66         try {
  67             if (callback == NULL) throw BadArgumentException();
  68             if (callbackHandle == NULL) throw BadArgumentException();
  69             if (allTargets) filter = false;
  70             Handle *myHandle = Handle::findHandle(handle);
  71             HBA *hba = myHandle->getHBA();
  72             HBAPort *port = hba->getPort(wwnConversion(hbaPortWWN.wwn));
  73             TargetEventListener *listener = new TargetEventListener(port,
  74                     (TargetCallback)callback, userData,
  75                     wwnConversion(discoveredPortWWN.wwn), filter);
  76             TargetEventBridge *bridge =
  77                     EventBridgeFactory::fetchTargetEventBridge();
  78             bridge->addListener(listener, port,
  79                 wwnConversion(discoveredPortWWN.wwn), filter);
  80             *callbackHandle = (void *)listener;
  81             return (HBA_STATUS_OK);
  82         } catch (HBAException &e) {
  83             return (e.getErrorCode());
  84         } catch (...) {
  85             log.internalError(
  86                 "Uncaught exception");
  87             return (HBA_STATUS_ERROR);
  88         }
  89 }
  90 #ifdef  __cplusplus
  91 }
  92 #endif