git.sur5r.net Git - openldap/blob - servers/slapd/back-monitor/thread.c

   1 /* thread.c - deal with thread subsystem */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2001-2005 The OpenLDAP Foundation.
   6  * Portions Copyright 2001-2003 Pierangelo Masarati.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted only as authorized by the OpenLDAP
  11  * Public License.
  12  *
  13  * A copy of this license is available in file LICENSE in the
  14  * top-level directory of the distribution or, alternatively, at
  15  * <http://www.OpenLDAP.org/license.html>.
  16  */
  17 /* ACKNOWLEDGEMENTS:
  18  * This work was initially developed by Pierangelo Masarati for inclusion
  19  * in OpenLDAP Software.
  20  */
  21
  22 #include "portable.h"
  23
  24 #include <stdio.h>
  25 #include <ac/string.h>
  26
  27 #include "slap.h"
  28 #include "back-monitor.h"
  29
  30 #include <ldap_rq.h>
  31
  32 /*
  33 *  * initializes log subentry
  34 *   */
  35 int
  36 monitor_subsys_thread_init(
  37         BackendDB               *be,
  38         monitor_subsys_t        *ms
  39 )
  40 {
  41         monitor_info_t  *mi;
  42         monitor_entry_t *mp;
  43         Entry           *e, **ep, *e_thread;
  44         static char     buf[ BACKMONITOR_BUFSIZE ];
  45
  46         mi = ( monitor_info_t * )be->be_private;
  47
  48         if ( monitor_cache_get( mi, &ms->mss_ndn, &e_thread ) ) {
  49                 Debug( LDAP_DEBUG_ANY,
  50                         "monitor_subsys_thread_init: unable to get entry \"%s\"\n",
  51                         ms->mss_ndn.bv_val,
  52                         0, 0 );
  53                 return( -1 );
  54         }
  55
  56         mp = ( monitor_entry_t * )e_thread->e_private;
  57         mp->mp_children = NULL;
  58         ep = &mp->mp_children;
  59
  60         /*
  61          * Max
  62          */
  63         snprintf( buf, sizeof( buf ),
  64                         "dn: cn=Max,%s\n"
  65                         "objectClass: %s\n"
  66                         "structuralObjectClass: %s\n"
  67                         "cn: Max\n"
  68                         "%s: %d\n"
  69                         "creatorsName: %s\n"
  70                         "modifiersName: %s\n"
  71                         "createTimestamp: %s\n"
  72                         "modifyTimestamp: %s\n",
  73                         ms->mss_dn.bv_val,
  74                         mi->mi_oc_monitoredObject->soc_cname.bv_val,
  75                         mi->mi_oc_monitoredObject->soc_cname.bv_val,
  76                         mi->mi_ad_monitoredInfo->ad_cname.bv_val,
  77                         connection_pool_max,
  78                         mi->mi_creatorsName.bv_val,
  79                         mi->mi_creatorsName.bv_val,
  80                         mi->mi_startTime.bv_val,
  81                         mi->mi_startTime.bv_val );
  82
  83         e = str2entry( buf );
  84         if ( e == NULL ) {
  85                 Debug( LDAP_DEBUG_ANY,
  86                         "monitor_subsys_thread_init: "
  87                         "unable to create entry \"cn=Max,%s\"\n",
  88                         ms->mss_ndn.bv_val, 0, 0 );
  89                 return( -1 );
  90         }
  91
  92         mp = monitor_entrypriv_create();
  93         if ( mp == NULL ) {
  94                 return -1;
  95         }
  96         e->e_private = ( void * )mp;
  97         mp->mp_info = ms;
  98         mp->mp_flags = ms->mss_flags \
  99                 | MONITOR_F_SUB | MONITOR_F_PERSISTENT;
 100
 101         if ( monitor_cache_add( mi, e ) ) {
 102                 Debug( LDAP_DEBUG_ANY,
 103                         "monitor_subsys_thread_init: "
 104                         "unable to add entry \"cn=Max,%s\"\n",
 105                         ms->mss_ndn.bv_val, 0, 0 );
 106                 return( -1 );
 107         }
 108
 109         *ep = e;
 110         ep = &mp->mp_next;
 111
 112         /*
 113          * Backload
 114          */
 115         snprintf( buf, sizeof( buf ),
 116                         "dn: cn=Backload,%s\n"
 117                         "objectClass: %s\n"
 118                         "structuralObjectClass: %s\n"
 119                         "cn: Backload\n"
 120                         "%s: 0\n"
 121                         "creatorsName: %s\n"
 122                         "modifiersName: %s\n"
 123                         "createTimestamp: %s\n"
 124                         "modifyTimestamp: %s\n",
 125                         ms->mss_dn.bv_val,
 126                         mi->mi_oc_monitoredObject->soc_cname.bv_val,
 127                         mi->mi_oc_monitoredObject->soc_cname.bv_val,
 128                         mi->mi_ad_monitoredInfo->ad_cname.bv_val,
 129                         mi->mi_creatorsName.bv_val,
 130                         mi->mi_creatorsName.bv_val,
 131                         mi->mi_startTime.bv_val,
 132                         mi->mi_startTime.bv_val );
 133
 134         e = str2entry( buf );
 135         if ( e == NULL ) {
 136                 Debug( LDAP_DEBUG_ANY,
 137                         "monitor_subsys_thread_init: "
 138                         "unable to create entry \"cn=Backload,%s\"\n",
 139                         ms->mss_ndn.bv_val, 0, 0 );
 140                 return( -1 );
 141         }
 142
 143         mp = monitor_entrypriv_create();
 144         if ( mp == NULL ) {
 145                 return -1;
 146         }
 147         e->e_private = ( void * )mp;
 148         mp->mp_info = ms;
 149         mp->mp_flags = ms->mss_flags \
 150                 | MONITOR_F_SUB | MONITOR_F_PERSISTENT;
 151
 152         if ( monitor_cache_add( mi, e ) ) {
 153                 Debug( LDAP_DEBUG_ANY,
 154                         "monitor_subsys_thread_init: "
 155                         "unable to add entry \"cn=Backload,%s\"\n",
 156                         ms->mss_ndn.bv_val, 0, 0 );
 157                 return( -1 );
 158         }
 159
 160         *ep = e;
 161         ep = &mp->mp_next;
 162
 163         /*
 164          * Runqueue runners
 165          */
 166         snprintf( buf, sizeof( buf ),
 167                         "dn: cn=Runqueue,%s\n"
 168                         "objectClass: %s\n"
 169                         "structuralObjectClass: %s\n"
 170                         "cn: Runqueue\n"
 171                         "%s: 0\n"
 172                         "creatorsName: %s\n"
 173                         "modifiersName: %s\n"
 174                         "createTimestamp: %s\n"
 175                         "modifyTimestamp: %s\n",
 176                         ms->mss_dn.bv_val,
 177                         mi->mi_oc_monitoredObject->soc_cname.bv_val,
 178                         mi->mi_oc_monitoredObject->soc_cname.bv_val,
 179                         mi->mi_ad_monitoredInfo->ad_cname.bv_val,
 180                         mi->mi_creatorsName.bv_val,
 181                         mi->mi_creatorsName.bv_val,
 182                         mi->mi_startTime.bv_val,
 183                         mi->mi_startTime.bv_val );
 184
 185         e = str2entry( buf );
 186         if ( e == NULL ) {
 187                 Debug( LDAP_DEBUG_ANY,
 188                         "monitor_subsys_thread_init: "
 189                         "unable to create entry \"cn=Runqueue,%s\"\n",
 190                         ms->mss_ndn.bv_val, 0, 0 );
 191                 return( -1 );
 192         }
 193
 194         mp = monitor_entrypriv_create();
 195         if ( mp == NULL ) {
 196                 return -1;
 197         }
 198         e->e_private = ( void * )mp;
 199         mp->mp_info = ms;
 200         mp->mp_flags = ms->mss_flags \
 201                 | MONITOR_F_SUB | MONITOR_F_PERSISTENT;
 202
 203         if ( monitor_cache_add( mi, e ) ) {
 204                 Debug( LDAP_DEBUG_ANY,
 205                         "monitor_subsys_thread_init: "
 206                         "unable to add entry \"cn=Runqueue,%s\"\n",
 207                         ms->mss_ndn.bv_val, 0, 0 );
 208                 return( -1 );
 209         }
 210
 211         *ep = e;
 212         ep = &mp->mp_next;
 213
 214         monitor_cache_release( mi, e_thread );
 215
 216         return( 0 );
 217 }
 218
 219 int
 220 monitor_subsys_thread_update(
 221         Operation               *op,
 222         Entry                   *e
 223 )
 224 {
 225         monitor_info_t  *mi = ( monitor_info_t * )op->o_bd->be_private;
 226         Attribute               *a;
 227         char                    buf[ BACKMONITOR_BUFSIZE ];
 228         static struct berval    backload_bv = BER_BVC( "cn=backload" );
 229         static struct berval    runqueue_bv = BER_BVC( "cn=runqueue" );
 230         struct berval           rdn, bv;
 231         ber_len_t               len;
 232         int which = 0;
 233         struct re_s *re;
 234
 235         assert( mi != NULL );
 236
 237         dnRdn( &e->e_nname, &rdn );
 238         if ( dn_match( &rdn, &backload_bv ))
 239                 which = 1;
 240         else if ( dn_match( &rdn, &runqueue_bv ))
 241                 which = 2;
 242         else
 243                 return 0;
 244
 245         switch( which ) {
 246         case 1:
 247                 a = attr_find( e->e_attrs, mi->mi_ad_monitoredInfo );
 248                 if ( a == NULL ) {
 249                         return -1;
 250                 }
 251                 snprintf( buf, sizeof( buf ), "%d",
 252                         ldap_pvt_thread_pool_backload( &connection_pool ) );
 253                 len = strlen( buf );
 254                 if ( len > a->a_vals[ 0 ].bv_len ) {
 255                         a->a_vals[ 0 ].bv_val = ber_memrealloc( a->a_vals[ 0 ].bv_val, len + 1 );
 256                 }
 257                 a->a_vals[ 0 ].bv_len = len;
 258                 AC_MEMCPY( a->a_vals[ 0 ].bv_val, buf, len + 1 );
 259                 break;
 260         case 2:
 261                 attr_delete( &e->e_attrs, mi->mi_ad_monitoredInfo );
 262                 bv.bv_val = buf;
 263                 ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
 264                 LDAP_STAILQ_FOREACH( re, &slapd_rq.run_list, rnext ) {
 265                         bv.bv_len = snprintf( buf, sizeof( buf ), "%s(%s)",
 266                                 re->tname, re->tspec );
 267                         attr_merge_normalize_one( e, mi->mi_ad_monitoredInfo, &bv, NULL );
 268                 }
 269                 ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
 270                 break;
 271         }
 272
 273         /* FIXME: touch modifyTimestamp? */
 274
 275         return( 0 );
 276 }
 277