usr/src/lib/mpapi/libmpscsi_vhci/common/MP_DeregForObjVisChangesPlugin.c

   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 #include "mp_utils.h"
  27
  28
  29 /*
  30  *      Called by the common layer to request the plugin to no longer call
  31  *      a client application's callback (pClientFn) when a visibility change
  32  *      is detected for the given object type.
  33  */
  34
  35 MP_STATUS
  36 MP_DeregisterForObjectVisibilityChangesPlugin(MP_OBJECT_VISIBILITY_FN pClientFn,
  37                 MP_OBJECT_TYPE objectType)
  38 {
  39         log(LOG_INFO, "MP_DeregisterForObjectVisibilityChangesPlugin()",
  40                 " - enter");
  41
  42
  43         if (NULL == pClientFn) {
  44
  45                 log(LOG_INFO, "MP_DeregisterForObjectVisibilityChangesPlugin()",
  46                         " - pClientFn is NULL");
  47
  48                 log(LOG_INFO, "MP_DeregisterForObjectVisibilityChangesPlugin()",
  49                         " - error exit");
  50
  51                 return (MP_STATUS_INVALID_PARAMETER);
  52         }
  53
  54
  55         /* Validate the object type passes in within range */
  56         if (objectType > MP_OBJECT_TYPE_MAX) {
  57
  58                 log(LOG_INFO, "MP_DeregisterForObjectVisibilityChangesPlugin()",
  59                         " - objectType is invalid");
  60
  61                 log(LOG_INFO, "MP_DeregisterForObjectVisibilityChangesPlugin()",
  62                         " - error exit");
  63
  64                 return (MP_STATUS_INVALID_PARAMETER);
  65         }
  66
  67         if (objectType < 1) {
  68
  69                 log(LOG_INFO, "MP_DeregisterForObjectVisibilityChangesPlugin()",
  70                         " - objectType is invalid");
  71
  72                 log(LOG_INFO, "MP_DeregisterForObjectVisibilityChangesPlugin()",
  73                         " - error exit");
  74
  75                 return (MP_STATUS_INVALID_PARAMETER);
  76         }
  77
  78         /* Remove registration.  */
  79         (void) pthread_mutex_lock(&g_visa_mutex);
  80         g_Visibility_Callback_List[objectType].pClientFn   = NULL;
  81         g_Visibility_Callback_List[objectType].pCallerData = NULL;
  82         (void) pthread_mutex_unlock(&g_visa_mutex);
  83
  84
  85         log(LOG_INFO, "MP_DeregisterForObjectVisibilityChangesPlugin()",
  86                 " - exit");
  87
  88         return (MP_STATUS_SUCCESS);
  89 }