text: /* backend.c - deals with backend subsystem */
  /* $OpenLDAP: pkg/ldap/servers/slapd/back-monitor/backend.c,v 1.41.2.5 2010/04/13 20:23:32 kurt Exp $ */
  /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   *
   * Copyright 2001-2010 The OpenLDAP Foundation.
   * Portions Copyright 2001-2003 Pierangelo Masarati.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted only as authorized by the OpenLDAP
   * Public License.
   *
   * A copy of this license is available in file LICENSE in the
   * top-level directory of the distribution or, alternatively, at
   * <http://www.OpenLDAP.org/license.html>.
   */
  /* ACKNOWLEDGEMENTS:
   * This work was initially developed by Pierangelo Masarati for inclusion
   * in OpenLDAP Software.
   */
  
  
  #include "portable.h"
  
  #include <stdio.h>
  #include <ac/string.h>
  
  #include "slap.h"
  #include "back-monitor.h"
  
  /*
   * initializes backend subentries
   */
  int
  monitor_subsys_backend_init(
  	BackendDB		*be,
  	monitor_subsys_t	*ms
  )
  {
  	monitor_info_t		*mi;
  	Entry			*e_backend, **ep;
  	int			i;
  	monitor_entry_t		*mp;
  	monitor_subsys_t	*ms_database;
  	BackendInfo			*bi;
  
  	mi = ( monitor_info_t * )be->be_private;
  
  	ms_database = monitor_back_get_subsys( SLAPD_MONITOR_DATABASE_NAME );
  	if ( ms_database == NULL ) {
  		Debug( LDAP_DEBUG_ANY,
  			"monitor_subsys_backend_init: "
  			"unable to get "
  			"\"" SLAPD_MONITOR_DATABASE_NAME "\" "
  			"subsystem\n",
  			0, 0, 0 );
  		return -1;
  	}
  
  	if ( monitor_cache_get( mi, &ms->mss_ndn, &e_backend ) ) {
  		Debug( LDAP_DEBUG_ANY,
  			"monitor_subsys_backend_init: "
  			"unable to get entry \"%s\"\n",
  			ms->mss_ndn.bv_val, 0, 0 );
  		return( -1 );
  	}
  
  	mp = ( monitor_entry_t * )e_backend->e_private;
  	mp->mp_children = NULL;
  	ep = &mp->mp_children;
  
  	i = -1;
  	LDAP_STAILQ_FOREACH( bi, &backendInfo, bi_next ) {
  		char 		buf[ BACKMONITOR_BUFSIZE ];
  		BackendDB	*be;
  		struct berval 	bv;
  		int		j;
  		Entry		*e;
  
  		i++;
  
  		bv.bv_len = snprintf( buf, sizeof( buf ), "cn=Backend %d", i );
  		bv.bv_val = buf;
  
  		e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
  			mi->mi_oc_monitoredObject, mi, NULL, NULL );
  
  		if ( e == NULL ) {
  			Debug( LDAP_DEBUG_ANY,
  				"monitor_subsys_backend_init: "
  				"unable to create entry \"cn=Backend %d,%s\"\n",
  				i, ms->mss_ndn.bv_val, 0 );
  			return( -1 );
  		}
  		
  		ber_str2bv( bi->bi_type, 0, 0, &bv );
  		attr_merge_normalize_one( e, mi->mi_ad_monitoredInfo,
  				&bv, NULL );
  		attr_merge_normalize_one( e_backend, mi->mi_ad_monitoredInfo,
  				&bv, NULL );
  
  		attr_merge_normalize_one( e, mi->mi_ad_monitorRuntimeConfig,
  			bi->bi_cf_ocs == NULL ? (struct berval *)&slap_false_bv :
  				(struct berval *)&slap_true_bv, NULL );
  
  		if ( bi->bi_controls ) {
  			int j;
  
  			for ( j = 0; bi->bi_controls[ j ]; j++ ) {
  				ber_str2bv( bi->bi_controls[ j ], 0, 0, &bv );
  				attr_merge_one( e, slap_schema.si_ad_supportedControl,
  						&bv, &bv );
  			}
  		}
  
  		j = -1;
  		LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
  			char		buf[ SLAP_LDAPDN_MAXLEN ];
  			struct berval	dn;
  			
  			j++;
  
  			if ( be->bd_info != bi ) {
  				continue;
  			}
  
  			snprintf( buf, sizeof( buf ), "cn=Database %d,%s",
  					j, ms_database->mss_dn.bv_val );
  
  			ber_str2bv( buf, 0, 0, &dn );
  			attr_merge_normalize_one( e, slap_schema.si_ad_seeAlso,
  					&dn, NULL );
  		}
  		
  		mp = monitor_entrypriv_create();
  		if ( mp == NULL ) {
  			return -1;
  		}
  		e->e_private = ( void * )mp;
  		mp->mp_info = ms;
  		mp->mp_flags = ms->mss_flags | MONITOR_F_SUB;
  
  		if ( monitor_cache_add( mi, e ) ) {
  			Debug( LDAP_DEBUG_ANY,
  				"monitor_subsys_backend_init: "
  				"unable to add entry \"cn=Backend %d,%s\"\n",
  				i,
  			       	ms->mss_ndn.bv_val, 0 );
  			return( -1 );
  		}
  
  		*ep = e;
  		ep = &mp->mp_next;
  	}
  	
  	monitor_cache_release( mi, e_backend );
  
  	return( 0 );
  }
  
  