Sun Cluster Data Services Developer's Guide for Solaris OS

The xfnts_update Method

The RGM calls the Update method to notify a running resource that its properties have been changed. The RGM invokes Update after an administrative action succeeds in setting properties of a resource or its group.


Example C–8 xfnts_update.c

#pragma ident “@(#)xfnts_update.c  1.10     01/01/18 SMI”

/*
 * Copyright (c) 1998-2004 by Sun Microsystems, Inc.
 * All rights reserved.
 *
 * xfnts_update.c - Update method for HA-XFS
 */

#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <rgm/libdsdev.h>

/*
 * Some of the resource properties might have been updated. All such
 * updatable properties are related to the fault monitor. Hence, just
 * restarting the monitor should be enough.
 */

int
main(int argc, char *argv[])
{
   scds_handle_t   scds_handle;
   scha_err_t   result;

   /* Process the arguments passed by RGM and initialize syslog */
   if (scds_initialize(&scds_handle, argc, argv) != SCHA_ERR_NOERR)
{
      scds_syslog(LOG_ERR, “Failed to initialize the handle.”);
      return (1);
   }

   /*
    * check if the Fault monitor is already running and if so stop and
    * restart it. The second parameter to scds_pmf_restart_fm() uniquely
    * identifies the instance of the fault monitor that needs to be
    * restarted.
    */

   scds_syslog(LOG_INFO, “Restarting the fault monitor.”);
   result = scds_pmf_restart_fm(scds_handle, 0);
   if (result != SCHA_ERR_NOERR) {
      scds_syslog(LOG_ERR,
          “Failed to restart fault monitor.”);
      /* Free up all the memory allocated by scds_initialize */
      scds_close(&scds_handle);
      return (1);
   }

   scds_syslog(LOG_INFO,
       “Completed successfully.”);

   /* Free up all the memory allocated by scds_initialize */
   scds_close(&scds_handle);

   return (0);
}