libmpscsi_vhci/common/MP_RegForObjVisChangesPlugin.c

fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * CDDL HEADER START
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * The contents of this file are subject to the terms of the
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Common Development and Distribution License (the "License").
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * You may not use this file except in compliance with the License.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * or http://www.opensolaris.org/os/licensing.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * See the License for the specific language governing permissions
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fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * CDDL HEADER END
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*
716c180559045549271833327182dc6a266134f1Nattuvetty Bhavyan * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include "mp_utils.h"
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *  Called by the common layer to request the plugin to call
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *  a client application's callback (pClientFn) when a visibility change
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *  is detected for the given object type.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn ForteMP_STATUS
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn ForteMP_RegisterForObjectVisibilityChangesPlugin(MP_OBJECT_VISIBILITY_FN pClientFn,
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        MP_OBJECT_TYPE objectType,
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        void *pCallerData)
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte{
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    MP_BOOL hasFunc = MP_FALSE;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    log(LOG_INFO, "MP_RegisterForObjectVisibilityChangesPlugin()",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        " - enter");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    /* Validate the object type passes in within range */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    if (objectType > MP_OBJECT_TYPE_MAX) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        log(LOG_INFO, "MP_RegisterForObjectVisibilityChangesPlugin()",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            " - objectType is invalid");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        log(LOG_INFO, "MP_RegisterForObjectVisibilityChangesPlugin()",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            " - error exit");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        return (MP_STATUS_INVALID_PARAMETER);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    if (objectType < 1) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        log(LOG_INFO, "MP_RegisterForObjectVisibilityChangesPlugin()",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            " - objectType is invalid");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        log(LOG_INFO, "MP_RegisterForObjectVisibilityChangesPlugin()",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            " - error exit");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        return (MP_STATUS_INVALID_PARAMETER);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    /* Init sysevents if they have not been initialized yet */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    if (g_SysEventHandle == NULL) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        if (init_sysevents() != MP_STATUS_SUCCESS)
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            return (MP_STATUS_FAILED);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    /* Check to see if we are going to be replacing */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    (void) pthread_mutex_lock(&g_visa_mutex);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    if (g_Visibility_Callback_List[objectType].pClientFn != NULL) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        hasFunc = MP_TRUE;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    /* Add the registration */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    g_Visibility_Callback_List[objectType].pClientFn   = pClientFn;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    g_Visibility_Callback_List[objectType].pCallerData = pCallerData;
4f4863587e52ddab00c1f01266a9198314761416Nattuvetty Bhavyan    (void) pthread_mutex_unlock(&g_visa_mutex);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    if (hasFunc) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        log(LOG_INFO, "MP_RegisterForObjectVisibilityChangesPlugin()",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            " - returning MP_STATUS_FN_REPLACED");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        return (MP_STATUS_FN_REPLACED);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    log(LOG_INFO, "MP_RegisterForObjectVisibilityChangesPlugin()",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        " - exit");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    return (MP_STATUS_SUCCESS);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte}
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte