git.sur5r.net Git - openldap/blob - servers/slapd/back-bdb/tools.c

   1 /* tools.c - tools for slap tools */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2000-2005 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16
  17 #include "portable.h"
  18
  19 #include <stdio.h>
  20 #include <ac/string.h>
  21
  22 #define AVL_INTERNAL
  23 #include "back-bdb.h"
  24 #include "idl.h"
  25
  26 static DBC *cursor = NULL;
  27 static DBT key, data;
  28
  29 typedef struct dn_id {
  30         ID id;
  31         struct berval dn;
  32 } dn_id;
  33
  34 #define HOLE_SIZE       4096
  35 static dn_id hbuf[HOLE_SIZE], *holes = hbuf;
  36 static unsigned nhmax = HOLE_SIZE;
  37 static unsigned nholes;
  38
  39 static int index_nattrs;
  40
  41 #ifdef BDB_TOOL_IDL_CACHING
  42 #define bdb_tool_idl_cmp                BDB_SYMBOL(tool_idl_cmp)
  43 #define bdb_tool_idl_flush_one          BDB_SYMBOL(tool_idl_flush_one)
  44 #define bdb_tool_idl_flush              BDB_SYMBOL(tool_idl_flush)
  45
  46 static int bdb_tool_idl_flush( BackendDB *be );
  47
  48 #define IDBLOCK 1024
  49
  50 typedef struct bdb_tool_idl_cache_entry {
  51         struct bdb_tool_idl_cache_entry *next;
  52         ID ids[IDBLOCK];
  53 } bdb_tool_idl_cache_entry;
  54
  55 typedef struct bdb_tool_idl_cache {
  56         struct berval kstr;
  57         bdb_tool_idl_cache_entry *head, *tail;
  58         ID first, last;
  59         int count;
  60 } bdb_tool_idl_cache;
  61
  62 static bdb_tool_idl_cache_entry *bdb_tool_idl_free_list;
  63 #endif  /* BDB_TOOL_IDL_CACHING */
  64
  65 static ID bdb_tool_ix_id;
  66 static Operation *bdb_tool_ix_op;
  67 static int *bdb_tool_index_threads, bdb_tool_index_tcount;
  68 static void *bdb_tool_index_rec;
  69 static struct bdb_info *bdb_tool_info;
  70 static ldap_pvt_thread_mutex_t bdb_tool_index_mutex;
  71 static ldap_pvt_thread_cond_t bdb_tool_index_cond;
  72
  73 static void * bdb_tool_index_task( void *ctx, void *ptr );
  74
  75 int bdb_tool_entry_open(
  76         BackendDB *be, int mode )
  77 {
  78         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
  79
  80         /* initialize key and data thangs */
  81         DBTzero( &key );
  82         DBTzero( &data );
  83         key.flags = DB_DBT_REALLOC;
  84         data.flags = DB_DBT_REALLOC;
  85
  86         if (cursor == NULL) {
  87                 int rc = bdb->bi_id2entry->bdi_db->cursor(
  88                         bdb->bi_id2entry->bdi_db, NULL, &cursor,
  89                         bdb->bi_db_opflags );
  90                 if( rc != 0 ) {
  91                         return -1;
  92                 }
  93         }
  94
  95         /* Set up for threaded slapindex */
  96         if (( slapMode & (SLAP_TOOL_QUICK|SLAP_TOOL_READONLY)) == SLAP_TOOL_QUICK
  97                 && bdb->bi_nattrs ) {
  98                 if ( !bdb_tool_info ) {
  99                         int i;
 100                         ldap_pvt_thread_mutex_init( &bdb_tool_index_mutex );
 101                         ldap_pvt_thread_cond_init( &bdb_tool_index_cond );
 102                         bdb_tool_index_threads = ch_malloc( slap_tool_thread_max * sizeof( int ));
 103                         bdb_tool_index_rec = ch_malloc( bdb->bi_nattrs * sizeof( IndexRec ));
 104                         bdb_tool_index_tcount = slap_tool_thread_max - 1;
 105                         for (i=1; i<slap_tool_thread_max; i++) {
 106                                 int *ptr = ch_malloc( sizeof( int ));
 107                                 *ptr = i;
 108                                 ldap_pvt_thread_pool_submit( &connection_pool,
 109                                         bdb_tool_index_task, ptr );
 110                         }
 111                 }
 112                 bdb_tool_info = bdb;
 113         }
 114
 115         return 0;
 116 }
 117
 118 int bdb_tool_entry_close(
 119         BackendDB *be )
 120 {
 121         if ( bdb_tool_info ) {
 122                 slapd_shutdown = 1;
 123                 ldap_pvt_thread_mutex_lock( &bdb_tool_index_mutex );
 124                 bdb_tool_index_tcount = slap_tool_thread_max - 1;
 125                 ldap_pvt_thread_cond_broadcast( &bdb_tool_index_cond );
 126                 ldap_pvt_thread_mutex_unlock( &bdb_tool_index_mutex );
 127         }
 128
 129         if( key.data ) {
 130                 ch_free( key.data );
 131                 key.data = NULL;
 132         }
 133         if( data.data ) {
 134                 ch_free( data.data );
 135                 data.data = NULL;
 136         }
 137
 138         if( cursor ) {
 139                 cursor->c_close( cursor );
 140                 cursor = NULL;
 141         }
 142
 143 #ifdef BDB_TOOL_IDL_CACHING
 144         bdb_tool_idl_flush( be );
 145 #endif
 146
 147         if( nholes ) {
 148                 unsigned i;
 149                 fprintf( stderr, "Error, entries missing!\n");
 150                 for (i=0; i<nholes; i++) {
 151                         fprintf(stderr, "  entry %ld: %s\n",
 152                                 holes[i].id, holes[i].dn.bv_val);
 153                 }
 154                 return -1;
 155         }
 156
 157         return 0;
 158 }
 159
 160 ID bdb_tool_entry_next(
 161         BackendDB *be )
 162 {
 163         int rc;
 164         ID id;
 165         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 166
 167         assert( be != NULL );
 168         assert( slapMode & SLAP_TOOL_MODE );
 169         assert( bdb != NULL );
 170
 171         rc = cursor->c_get( cursor, &key, &data, DB_NEXT );
 172
 173         if( rc != 0 ) {
 174                 /* If we're doing linear indexing and there are more attrs to
 175                  * index, and we're at the end of the database, start over.
 176                  */
 177                 if ( index_nattrs && rc == DB_NOTFOUND ) {
 178                         /* optional - do a checkpoint here? */
 179                         bdb_attr_info_free( bdb->bi_attrs[0] );
 180                         bdb->bi_attrs[0] = bdb->bi_attrs[index_nattrs];
 181                         index_nattrs--;
 182                         rc = cursor->c_get( cursor, &key, &data, DB_FIRST );
 183                         if ( rc ) {
 184                                 return NOID;
 185                         }
 186                 } else {
 187                         return NOID;
 188                 }
 189         }
 190
 191         if( data.data == NULL ) {
 192                 return NOID;
 193         }
 194
 195         BDB_DISK2ID( key.data, &id );
 196         return id;
 197 }
 198
 199 ID bdb_tool_dn2id_get(
 200         Backend *be,
 201         struct berval *dn
 202 )
 203 {
 204         Operation op = {0};
 205         Opheader ohdr = {0};
 206         EntryInfo *ei = NULL;
 207         int rc;
 208
 209         if ( BER_BVISEMPTY(dn) )
 210                 return 0;
 211
 212         op.o_hdr = &ohdr;
 213         op.o_bd = be;
 214         op.o_tmpmemctx = NULL;
 215         op.o_tmpmfuncs = &ch_mfuncs;
 216
 217         rc = bdb_cache_find_ndn( &op, NULL, dn, &ei );
 218         if ( ei ) bdb_cache_entryinfo_unlock( ei );
 219         if ( rc == DB_NOTFOUND )
 220                 return NOID;
 221
 222         return ei->bei_id;
 223 }
 224
 225 int bdb_tool_id2entry_get(
 226         Backend *be,
 227         ID id,
 228         Entry **e
 229 )
 230 {
 231         int rc = bdb_id2entry( be, NULL, 0, id, e );
 232
 233         if ( rc == DB_NOTFOUND && id == 0 ) {
 234                 Entry *dummy = ch_calloc( 1, sizeof(Entry) );
 235                 struct berval gluebv = BER_BVC("glue");
 236                 dummy->e_name.bv_val = ch_strdup( "" );
 237                 dummy->e_nname.bv_val = ch_strdup( "" );
 238                 attr_merge_one( dummy, slap_schema.si_ad_objectClass, &gluebv, NULL );
 239                 attr_merge_one( dummy, slap_schema.si_ad_structuralObjectClass,
 240                         &gluebv, NULL );
 241                 *e = dummy;
 242                 rc = LDAP_SUCCESS;
 243         }
 244         return rc;
 245 }
 246
 247 Entry* bdb_tool_entry_get( BackendDB *be, ID id )
 248 {
 249         int rc;
 250         Entry *e = NULL;
 251         struct berval bv;
 252
 253         assert( be != NULL );
 254         assert( slapMode & SLAP_TOOL_MODE );
 255         assert( data.data != NULL );
 256
 257         DBT2bv( &data, &bv );
 258
 259 #ifdef SLAP_ZONE_ALLOC
 260         /* FIXME: will add ctx later */
 261         rc = entry_decode( &bv, &e, NULL );
 262 #else
 263         rc = entry_decode( &bv, &e );
 264 #endif
 265
 266         if( rc == LDAP_SUCCESS ) {
 267                 e->e_id = id;
 268         }
 269 #ifdef BDB_HIER
 270         if ( slapMode & SLAP_TOOL_READONLY ) {
 271                 EntryInfo *ei = NULL;
 272                 Operation op = {0};
 273                 Opheader ohdr = {0};
 274
 275                 op.o_hdr = &ohdr;
 276                 op.o_bd = be;
 277                 op.o_tmpmemctx = NULL;
 278                 op.o_tmpmfuncs = &ch_mfuncs;
 279
 280                 rc = bdb_cache_find_parent( &op, NULL, cursor->locker, id, &ei );
 281                 if ( rc == LDAP_SUCCESS ) {
 282                         bdb_cache_entryinfo_unlock( ei );
 283                         e->e_private = ei;
 284                         ei->bei_e = e;
 285                         bdb_fix_dn( e, 0 );
 286                         ei->bei_e = NULL;
 287                         e->e_private = NULL;
 288                 }
 289         }
 290 #endif
 291         return e;
 292 }
 293
 294 static int bdb_tool_next_id(
 295         Operation *op,
 296         DB_TXN *tid,
 297         Entry *e,
 298         struct berval *text,
 299         int hole )
 300 {
 301         struct berval dn = e->e_name;
 302         struct berval ndn = e->e_nname;
 303         struct berval pdn, npdn;
 304         EntryInfo *ei = NULL, eidummy;
 305         int rc;
 306
 307         if (ndn.bv_len == 0) {
 308                 e->e_id = 0;
 309                 return 0;
 310         }
 311
 312         rc = bdb_cache_find_ndn( op, tid, &ndn, &ei );
 313         if ( ei ) bdb_cache_entryinfo_unlock( ei );
 314         if ( rc == DB_NOTFOUND ) {
 315                 if ( !be_issuffix( op->o_bd, &ndn ) ) {
 316                         ID eid = e->e_id;
 317                         dnParent( &dn, &pdn );
 318                         dnParent( &ndn, &npdn );
 319                         e->e_name = pdn;
 320                         e->e_nname = npdn;
 321                         rc = bdb_tool_next_id( op, tid, e, text, 1 );
 322                         e->e_name = dn;
 323                         e->e_nname = ndn;
 324                         if ( rc ) {
 325                                 return rc;
 326                         }
 327                         /* If parent didn't exist, it was created just now
 328                          * and its ID is now in e->e_id. Make sure the current
 329                          * entry gets added under the new parent ID.
 330                          */
 331                         if ( eid != e->e_id ) {
 332                                 eidummy.bei_id = e->e_id;
 333                                 ei = &eidummy;
 334                         }
 335                 }
 336                 rc = bdb_next_id( op->o_bd, tid, &e->e_id );
 337                 if ( rc ) {
 338                         snprintf( text->bv_val, text->bv_len,
 339                                 "next_id failed: %s (%d)",
 340                                 db_strerror(rc), rc );
 341                 Debug( LDAP_DEBUG_ANY,
 342                         "=> bdb_tool_next_id: %s\n", text->bv_val, 0, 0 );
 343                         return rc;
 344                 }
 345                 rc = bdb_dn2id_add( op, tid, ei, e );
 346                 if ( rc ) {
 347                         snprintf( text->bv_val, text->bv_len,
 348                                 "dn2id_add failed: %s (%d)",
 349                                 db_strerror(rc), rc );
 350                 Debug( LDAP_DEBUG_ANY,
 351                         "=> bdb_tool_next_id: %s\n", text->bv_val, 0, 0 );
 352                 } else if ( hole ) {
 353                         if ( nholes == nhmax - 1 ) {
 354                                 if ( holes == hbuf ) {
 355                                         holes = ch_malloc( nhmax * sizeof(dn_id) * 2 );
 356                                         AC_MEMCPY( holes, hbuf, sizeof(hbuf) );
 357                                 } else {
 358                                         holes = ch_realloc( holes, nhmax * sizeof(dn_id) * 2 );
 359                                 }
 360                                 nhmax *= 2;
 361                         }
 362                         ber_dupbv( &holes[nholes].dn, &ndn );
 363                         holes[nholes++].id = e->e_id;
 364                 }
 365         } else if ( !hole ) {
 366                 unsigned i;
 367
 368                 e->e_id = ei->bei_id;
 369
 370                 for ( i=0; i<nholes; i++) {
 371                         if ( holes[i].id == e->e_id ) {
 372                                 int j;
 373                                 free(holes[i].dn.bv_val);
 374                                 for (j=i;j<nholes;j++) holes[j] = holes[j+1];
 375                                 holes[j].id = 0;
 376                                 nholes--;
 377                                 break;
 378                         } else if ( holes[i].id > e->e_id ) {
 379                                 break;
 380                         }
 381                 }
 382         }
 383         return rc;
 384 }
 385
 386 static int
 387 bdb_tool_index_add(
 388         Operation *op,
 389         DB_TXN *txn,
 390         Entry *e )
 391 {
 392         struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
 393
 394         if ( slapMode & SLAP_TOOL_QUICK ) {
 395                 IndexRec *ir;
 396                 int i, rc;
 397                 Attribute *a;
 398
 399                 ir = bdb_tool_index_rec;
 400                 memset(ir, 0, bdb->bi_nattrs * sizeof( IndexRec ));
 401
 402                 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 403                         rc = bdb_index_recset( bdb, a, a->a_desc->ad_type,
 404                                 &a->a_desc->ad_tags, ir );
 405                         if ( rc )
 406                                 return rc;
 407                 }
 408                 bdb_tool_ix_id = e->e_id;
 409                 bdb_tool_ix_op = op;
 410                 ldap_pvt_thread_mutex_lock( &bdb_tool_index_mutex );
 411                 /* Wait for all threads to be ready */
 412                 while ( bdb_tool_index_tcount ) {
 413                         ldap_pvt_thread_mutex_unlock( &bdb_tool_index_mutex );
 414                         ldap_pvt_thread_yield();
 415                         ldap_pvt_thread_mutex_lock( &bdb_tool_index_mutex );
 416                 }
 417                 for ( i=1; i<slap_tool_thread_max; i++ )
 418                         bdb_tool_index_threads[i] = LDAP_BUSY;
 419                 bdb_tool_index_tcount = slap_tool_thread_max - 1;
 420                 ldap_pvt_thread_cond_broadcast( &bdb_tool_index_cond );
 421                 ldap_pvt_thread_mutex_unlock( &bdb_tool_index_mutex );
 422                 rc = bdb_index_recrun( op, bdb, ir, e->e_id, 0 );
 423                 if ( rc )
 424                         return rc;
 425                 for ( i=1; i<slap_tool_thread_max; i++ ) {
 426                         if ( bdb_tool_index_threads[i] == LDAP_BUSY ) {
 427                                 ldap_pvt_thread_yield();
 428                                 i--;
 429                                 continue;
 430                         }
 431                         if ( bdb_tool_index_threads[i] )
 432                                 return bdb_tool_index_threads[i];
 433                 }
 434                 return 0;
 435         } else {
 436                 return bdb_index_entry_add( op, txn, e );
 437         }
 438 }
 439
 440 ID bdb_tool_entry_put(
 441         BackendDB *be,
 442         Entry *e,
 443         struct berval *text )
 444 {
 445         int rc;
 446         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 447         DB_TXN *tid = NULL;
 448         Operation op = {0};
 449         Opheader ohdr = {0};
 450
 451         assert( be != NULL );
 452         assert( slapMode & SLAP_TOOL_MODE );
 453
 454         assert( text != NULL );
 455         assert( text->bv_val != NULL );
 456         assert( text->bv_val[0] == '\0' );      /* overconservative? */
 457
 458         Debug( LDAP_DEBUG_TRACE, "=> " LDAP_XSTRING(bdb_tool_entry_put)
 459                 "( %ld, \"%s\" )\n", (long) e->e_id, e->e_dn, 0 );
 460
 461         if (! (slapMode & SLAP_TOOL_QUICK)) {
 462         rc = TXN_BEGIN( bdb->bi_dbenv, NULL, &tid,
 463                 bdb->bi_db_opflags );
 464         if( rc != 0 ) {
 465                 snprintf( text->bv_val, text->bv_len,
 466                         "txn_begin failed: %s (%d)",
 467                         db_strerror(rc), rc );
 468                 Debug( LDAP_DEBUG_ANY,
 469                         "=> " LDAP_XSTRING(bdb_tool_entry_put) ": %s\n",
 470                          text->bv_val, 0, 0 );
 471                 return NOID;
 472         }
 473         }
 474
 475         op.o_hdr = &ohdr;
 476         op.o_bd = be;
 477         op.o_tmpmemctx = NULL;
 478         op.o_tmpmfuncs = &ch_mfuncs;
 479
 480         /* add dn2id indices */
 481         rc = bdb_tool_next_id( &op, tid, e, text, 0 );
 482         if( rc != 0 ) {
 483                 goto done;
 484         }
 485
 486         /* id2entry index */
 487         rc = bdb_id2entry_add( be, tid, e );
 488         if( rc != 0 ) {
 489                 snprintf( text->bv_val, text->bv_len,
 490                                 "id2entry_add failed: %s (%d)",
 491                                 db_strerror(rc), rc );
 492                 Debug( LDAP_DEBUG_ANY,
 493                         "=> " LDAP_XSTRING(bdb_tool_entry_put) ": %s\n",
 494                         text->bv_val, 0, 0 );
 495                 goto done;
 496         }
 497
 498         if ( !bdb->bi_linear_index )
 499                 rc = bdb_tool_index_add( &op, tid, e );
 500         if( rc != 0 ) {
 501                 snprintf( text->bv_val, text->bv_len,
 502                                 "index_entry_add failed: %s (%d)",
 503                                 db_strerror(rc), rc );
 504                 Debug( LDAP_DEBUG_ANY,
 505                         "=> " LDAP_XSTRING(bdb_tool_entry_put) ": %s\n",
 506                         text->bv_val, 0, 0 );
 507                 goto done;
 508         }
 509
 510 done:
 511         if( rc == 0 ) {
 512                 if ( !( slapMode & SLAP_TOOL_QUICK )) {
 513                 rc = TXN_COMMIT( tid, 0 );
 514                 if( rc != 0 ) {
 515                         snprintf( text->bv_val, text->bv_len,
 516                                         "txn_commit failed: %s (%d)",
 517                                         db_strerror(rc), rc );
 518                         Debug( LDAP_DEBUG_ANY,
 519                                 "=> " LDAP_XSTRING(bdb_tool_entry_put) ": %s\n",
 520                                 text->bv_val, 0, 0 );
 521                         e->e_id = NOID;
 522                 }
 523                 }
 524
 525         } else {
 526                 if ( !( slapMode & SLAP_TOOL_QUICK )) {
 527                 TXN_ABORT( tid );
 528                 snprintf( text->bv_val, text->bv_len,
 529                         "txn_aborted! %s (%d)",
 530                         db_strerror(rc), rc );
 531                 Debug( LDAP_DEBUG_ANY,
 532                         "=> " LDAP_XSTRING(bdb_tool_entry_put) ": %s\n",
 533                         text->bv_val, 0, 0 );
 534                 }
 535                 e->e_id = NOID;
 536         }
 537
 538         return e->e_id;
 539 }
 540
 541 int bdb_tool_entry_reindex(
 542         BackendDB *be,
 543         ID id )
 544 {
 545         struct bdb_info *bi = (struct bdb_info *) be->be_private;
 546         int rc;
 547         Entry *e;
 548         DB_TXN *tid = NULL;
 549         Operation op = {0};
 550         Opheader ohdr = {0};
 551
 552         Debug( LDAP_DEBUG_ARGS,
 553                 "=> " LDAP_XSTRING(bdb_tool_entry_reindex) "( %ld )\n",
 554                 (long) id, 0, 0 );
 555
 556         /* No indexes configured, nothing to do. Could return an
 557          * error here to shortcut things.
 558          */
 559         if (!bi->bi_attrs) {
 560                 return 0;
 561         }
 562
 563         /* Get the first attribute to index */
 564         if (bi->bi_linear_index && !index_nattrs) {
 565                 index_nattrs = bi->bi_nattrs - 1;
 566                 bi->bi_nattrs = 1;
 567         }
 568
 569         e = bdb_tool_entry_get( be, id );
 570
 571         if( e == NULL ) {
 572                 Debug( LDAP_DEBUG_ANY,
 573                         LDAP_XSTRING(bdb_tool_entry_reindex)
 574                         ": could not locate id=%ld\n",
 575                         (long) id, 0, 0 );
 576                 return -1;
 577         }
 578
 579         if (! (slapMode & SLAP_TOOL_QUICK)) {
 580         rc = TXN_BEGIN( bi->bi_dbenv, NULL, &tid, bi->bi_db_opflags );
 581         if( rc != 0 ) {
 582                 Debug( LDAP_DEBUG_ANY,
 583                         "=> " LDAP_XSTRING(bdb_tool_entry_reindex) ": "
 584                         "txn_begin failed: %s (%d)\n",
 585                         db_strerror(rc), rc, 0 );
 586                 goto done;
 587         }
 588         }
 589
 590         /*
 591          * just (re)add them for now
 592          * assume that some other routine (not yet implemented)
 593          * will zap index databases
 594          *
 595          */
 596
 597         Debug( LDAP_DEBUG_TRACE,
 598                 "=> " LDAP_XSTRING(bdb_tool_entry_reindex) "( %ld, \"%s\" )\n",
 599                 (long) id, e->e_dn, 0 );
 600
 601         op.o_hdr = &ohdr;
 602         op.o_bd = be;
 603         op.o_tmpmemctx = NULL;
 604         op.o_tmpmfuncs = &ch_mfuncs;
 605
 606         rc = bdb_tool_index_add( &op, tid, e );
 607
 608 done:
 609         if( rc == 0 ) {
 610                 if (! (slapMode & SLAP_TOOL_QUICK)) {
 611                 rc = TXN_COMMIT( tid, 0 );
 612                 if( rc != 0 ) {
 613                         Debug( LDAP_DEBUG_ANY,
 614                                 "=> " LDAP_XSTRING(bdb_tool_entry_reindex)
 615                                 ": txn_commit failed: %s (%d)\n",
 616                                 db_strerror(rc), rc, 0 );
 617                         e->e_id = NOID;
 618                 }
 619                 }
 620
 621         } else {
 622                 if (! (slapMode & SLAP_TOOL_QUICK)) {
 623                 TXN_ABORT( tid );
 624                 Debug( LDAP_DEBUG_ANY,
 625                         "=> " LDAP_XSTRING(bdb_tool_entry_reindex)
 626                         ": txn_aborted! %s (%d)\n",
 627                         db_strerror(rc), rc, 0 );
 628                 }
 629                 e->e_id = NOID;
 630         }
 631         bdb_entry_release( &op, e, 0 );
 632
 633         return rc;
 634 }
 635
 636 ID bdb_tool_entry_modify(
 637         BackendDB *be,
 638         Entry *e,
 639         struct berval *text )
 640 {
 641         int rc;
 642         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 643         DB_TXN *tid = NULL;
 644         Operation op = {0};
 645         Opheader ohdr = {0};
 646
 647         assert( be != NULL );
 648         assert( slapMode & SLAP_TOOL_MODE );
 649
 650         assert( text != NULL );
 651         assert( text->bv_val != NULL );
 652         assert( text->bv_val[0] == '\0' );      /* overconservative? */
 653
 654         assert ( e->e_id != NOID );
 655
 656         Debug( LDAP_DEBUG_TRACE,
 657                 "=> " LDAP_XSTRING(bdb_tool_entry_modify) "( %ld, \"%s\" )\n",
 658                 (long) e->e_id, e->e_dn, 0 );
 659
 660         if (! (slapMode & SLAP_TOOL_QUICK)) {
 661         rc = TXN_BEGIN( bdb->bi_dbenv, NULL, &tid,
 662                 bdb->bi_db_opflags );
 663         if( rc != 0 ) {
 664                 snprintf( text->bv_val, text->bv_len,
 665                         "txn_begin failed: %s (%d)",
 666                         db_strerror(rc), rc );
 667                 Debug( LDAP_DEBUG_ANY,
 668                         "=> " LDAP_XSTRING(bdb_tool_entry_modify) ": %s\n",
 669                          text->bv_val, 0, 0 );
 670                 return NOID;
 671         }
 672         }
 673
 674         op.o_hdr = &ohdr;
 675         op.o_bd = be;
 676         op.o_tmpmemctx = NULL;
 677         op.o_tmpmfuncs = &ch_mfuncs;
 678
 679         /* id2entry index */
 680         rc = bdb_id2entry_update( be, tid, e );
 681         if( rc != 0 ) {
 682                 snprintf( text->bv_val, text->bv_len,
 683                                 "id2entry_add failed: %s (%d)",
 684                                 db_strerror(rc), rc );
 685                 Debug( LDAP_DEBUG_ANY,
 686                         "=> " LDAP_XSTRING(bdb_tool_entry_modify) ": %s\n",
 687                         text->bv_val, 0, 0 );
 688                 goto done;
 689         }
 690
 691 #if 0
 692         /* FIXME: this is bogus, we don't have the old values to delete
 693          * from the index because the given entry has already been modified.
 694          */
 695         rc = bdb_index_entry_del( &op, tid, e );
 696         if( rc != 0 ) {
 697                 snprintf( text->bv_val, text->bv_len,
 698                                 "index_entry_del failed: %s (%d)",
 699                                 db_strerror(rc), rc );
 700                 Debug( LDAP_DEBUG_ANY,
 701                         "=> " LDAP_XSTRING(bdb_tool_entry_modify) ": %s\n",
 702                         text->bv_val, 0, 0 );
 703                 goto done;
 704         }
 705 #endif
 706
 707         rc = bdb_index_entry_add( &op, tid, e );
 708         if( rc != 0 ) {
 709                 snprintf( text->bv_val, text->bv_len,
 710                                 "index_entry_add failed: %s (%d)",
 711                                 db_strerror(rc), rc );
 712                 Debug( LDAP_DEBUG_ANY,
 713                         "=> " LDAP_XSTRING(bdb_tool_entry_modify) ": %s\n",
 714                         text->bv_val, 0, 0 );
 715                 goto done;
 716         }
 717
 718 done:
 719         if( rc == 0 ) {
 720                 if (! (slapMode & SLAP_TOOL_QUICK)) {
 721                 rc = TXN_COMMIT( tid, 0 );
 722                 if( rc != 0 ) {
 723                         snprintf( text->bv_val, text->bv_len,
 724                                         "txn_commit failed: %s (%d)",
 725                                         db_strerror(rc), rc );
 726                         Debug( LDAP_DEBUG_ANY,
 727                                 "=> " LDAP_XSTRING(bdb_tool_entry_modify) ": "
 728                                 "%s\n", text->bv_val, 0, 0 );
 729                         e->e_id = NOID;
 730                 }
 731                 }
 732
 733         } else {
 734                 if (! (slapMode & SLAP_TOOL_QUICK)) {
 735                 TXN_ABORT( tid );
 736                 snprintf( text->bv_val, text->bv_len,
 737                         "txn_aborted! %s (%d)",
 738                         db_strerror(rc), rc );
 739                 Debug( LDAP_DEBUG_ANY,
 740                         "=> " LDAP_XSTRING(bdb_tool_entry_modify) ": %s\n",
 741                         text->bv_val, 0, 0 );
 742                 }
 743                 e->e_id = NOID;
 744         }
 745
 746         return e->e_id;
 747 }
 748
 749 #ifdef BDB_TOOL_IDL_CACHING
 750 static int
 751 bdb_tool_idl_cmp( const void *v1, const void *v2 )
 752 {
 753         const bdb_tool_idl_cache *c1 = v1, *c2 = v2;
 754         int rc;
 755
 756         if (( rc = c1->kstr.bv_len - c2->kstr.bv_len )) return rc;
 757         return memcmp( c1->kstr.bv_val, c2->kstr.bv_val, c1->kstr.bv_len );
 758 }
 759
 760 static int
 761 bdb_tool_idl_flush_one( void *v1, void *arg )
 762 {
 763         bdb_tool_idl_cache *ic = v1;
 764         DB *db = arg;
 765         struct bdb_info *bdb = bdb_tool_info;
 766         bdb_tool_idl_cache_entry *ice;
 767         DBC *curs;
 768         DBT key, data;
 769         int i, rc;
 770         ID id, nid;
 771
 772         /* Freshly allocated, ignore it */
 773         if ( !ic->head && ic->count <= BDB_IDL_DB_SIZE ) {
 774                 return 0;
 775         }
 776
 777         rc = db->cursor( db, NULL, &curs, 0 );
 778         if ( rc )
 779                 return -1;
 780
 781         DBTzero( &key );
 782         DBTzero( &data );
 783
 784         bv2DBT( &ic->kstr, &key );
 785
 786         data.size = data.ulen = sizeof( ID );
 787         data.flags = DB_DBT_USERMEM;
 788         data.data = &nid;
 789
 790         rc = curs->c_get( curs, &key, &data, DB_SET );
 791         /* If key already exists and we're writing a range... */
 792         if ( rc == 0 && ic->count > BDB_IDL_DB_SIZE ) {
 793                 /* If it's not currently a range, must delete old info */
 794                 if ( nid ) {
 795                         /* Skip lo */
 796                         while ( curs->c_get( curs, &key, &data, DB_NEXT_DUP ) == 0 )
 797                                 curs->c_del( curs, 0 );
 798
 799                         nid = 0;
 800                         /* Store range marker */
 801                         curs->c_put( curs, &key, &data, DB_KEYFIRST );
 802                 } else {
 803
 804                         /* Skip lo */
 805                         rc = curs->c_get( curs, &key, &data, DB_NEXT_DUP );
 806
 807                         /* Get hi */
 808                         rc = curs->c_get( curs, &key, &data, DB_NEXT_DUP );
 809
 810                         /* Delete hi */
 811                         curs->c_del( curs, 0 );
 812                 }
 813                 BDB_ID2DISK( ic->last, &nid );
 814                 curs->c_put( curs, &key, &data, DB_KEYLAST );
 815                 rc = 0;
 816         } else if ( rc && rc != DB_NOTFOUND ) {
 817                 rc = -1;
 818         } else if ( ic->count > BDB_IDL_DB_SIZE ) {
 819                 /* range, didn't exist before */
 820                 nid = 0;
 821                 rc = curs->c_put( curs, &key, &data, DB_KEYLAST );
 822                 if ( rc == 0 ) {
 823                         BDB_ID2DISK( ic->first, &nid );
 824                         rc = curs->c_put( curs, &key, &data, DB_KEYLAST );
 825                         if ( rc == 0 ) {
 826                                 BDB_ID2DISK( ic->last, &nid );
 827                                 rc = curs->c_put( curs, &key, &data, DB_KEYLAST );
 828                         }
 829                 }
 830                 if ( rc ) {
 831                         rc = -1;
 832                 }
 833         } else {
 834                 int n;
 835
 836                 /* Just a normal write */
 837                 rc = 0;
 838                 for ( ice = ic->head, n=0; ice; ice = ice->next, n++ ) {
 839                         int end;
 840                         if ( ice->next ) {
 841                                 end = IDBLOCK;
 842                         } else {
 843                                 end = ic->count & (IDBLOCK-1);
 844                                 if ( !end )
 845                                         end = IDBLOCK;
 846                         }
 847                         for ( i=0; i<end; i++ ) {
 848                                 if ( !ice->ids[i] ) continue;
 849                                 BDB_ID2DISK( ice->ids[i], &nid );
 850                                 rc = curs->c_put( curs, &key, &data, DB_NODUPDATA );
 851                                 if ( rc ) {
 852                                         if ( rc == DB_KEYEXIST ) {
 853                                                 rc = 0;
 854                                                 continue;
 855                                         }
 856                                         rc = -1;
 857                                         break;
 858                                 }
 859                         }
 860                         if ( rc ) {
 861                                 rc = -1;
 862                                 break;
 863                         }
 864                 }
 865                 if ( ic->head ) {
 866                         ldap_pvt_thread_mutex_lock( &bdb->bi_idl_tree_lrulock );
 867                         ic->tail->next = bdb_tool_idl_free_list;
 868                         bdb_tool_idl_free_list = ic->head;
 869                         bdb->bi_idl_cache_size -= n;
 870                         ldap_pvt_thread_mutex_unlock( &bdb->bi_idl_tree_lrulock );
 871                 }
 872         }
 873         if ( ic != db->app_private ) {
 874                 ch_free( ic );
 875         } else {
 876                 ic->head = ic->tail = NULL;
 877         }
 878         curs->c_close( curs );
 879         return rc;
 880 }
 881
 882 static int
 883 bdb_tool_idl_flush_db( DB *db, bdb_tool_idl_cache *ic )
 884 {
 885         Avlnode *root = db->app_private;
 886         int rc;
 887
 888         db->app_private = ic;
 889         rc = avl_apply( root, bdb_tool_idl_flush_one, db, -1, AVL_INORDER );
 890         avl_free( root, NULL );
 891         db->app_private = NULL;
 892         if ( rc != -1 )
 893                 rc = 0;
 894         return rc;
 895 }
 896
 897 static int
 898 bdb_tool_idl_flush( BackendDB *be )
 899 {
 900         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 901         DB *db;
 902         Avlnode *root;
 903         int i, rc = 0;
 904
 905         for ( i=BDB_NDB; i < bdb->bi_ndatabases; i++ ) {
 906                 db = bdb->bi_databases[i]->bdi_db;
 907                 if ( !db->app_private ) continue;
 908                 rc = bdb_tool_idl_flush_db( db, NULL );
 909                 if ( rc )
 910                         break;
 911         }
 912         if ( !rc ) {
 913                 bdb->bi_idl_cache_size = 0;
 914         }
 915         return rc;
 916 }
 917
 918 int bdb_tool_idl_add(
 919         BackendDB *be,
 920         DB *db,
 921         DB_TXN *txn,
 922         DBT *key,
 923         ID id )
 924 {
 925         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 926         bdb_tool_idl_cache *ic, itmp;
 927         bdb_tool_idl_cache_entry *ice;
 928         int rc;
 929
 930         if ( !bdb->bi_idl_cache_max_size )
 931                 return bdb_idl_insert_key( be, db, txn, key, id );
 932
 933         DBT2bv( key, &itmp.kstr );
 934
 935         ic = avl_find( (Avlnode *)db->app_private, &itmp, bdb_tool_idl_cmp );
 936
 937         /* No entry yet, create one */
 938         if ( !ic ) {
 939                 DBC *curs;
 940                 DBT data;
 941                 ID nid;
 942                 int rc;
 943
 944                 ic = ch_malloc( sizeof( bdb_tool_idl_cache ) + itmp.kstr.bv_len );
 945                 ic->kstr.bv_len = itmp.kstr.bv_len;
 946                 ic->kstr.bv_val = (char *)(ic+1);
 947                 AC_MEMCPY( ic->kstr.bv_val, itmp.kstr.bv_val, ic->kstr.bv_len );
 948                 ic->head = ic->tail = NULL;
 949                 ic->last = 0;
 950                 ic->count = 0;
 951                 avl_insert( (Avlnode **)&db->app_private, ic, bdb_tool_idl_cmp,
 952                         avl_dup_error );
 953
 954                 /* load existing key count here */
 955                 rc = db->cursor( db, NULL, &curs, 0 );
 956                 if ( rc ) return rc;
 957
 958                 data.ulen = sizeof( ID );
 959                 data.flags = DB_DBT_USERMEM;
 960                 data.data = &nid;
 961                 rc = curs->c_get( curs, key, &data, DB_SET );
 962                 if ( rc == 0 ) {
 963                         if ( nid == 0 ) {
 964                                 ic->count = BDB_IDL_DB_SIZE+1;
 965                         } else {
 966                                 db_recno_t count;
 967
 968                                 curs->c_count( curs, &count, 0 );
 969                                 ic->count = count;
 970                                 BDB_DISK2ID( &nid, &ic->first );
 971                         }
 972                 }
 973                 curs->c_close( curs );
 974         }
 975         /* are we a range already? */
 976         if ( ic->count > BDB_IDL_DB_SIZE ) {
 977                 ic->last = id;
 978                 return 0;
 979         /* Are we at the limit, and converting to a range? */
 980         } else if ( ic->count == BDB_IDL_DB_SIZE ) {
 981                 int n;
 982                 for ( ice = ic->head, n=0; ice; ice = ice->next, n++ )
 983                         /* counting */ ;
 984                 if ( n ) {
 985                         ldap_pvt_thread_mutex_lock( &bdb->bi_idl_tree_lrulock );
 986                         ic->tail->next = bdb_tool_idl_free_list;
 987                         bdb_tool_idl_free_list = ic->head;
 988                         bdb->bi_idl_cache_size -= n;
 989                         ldap_pvt_thread_mutex_unlock( &bdb->bi_idl_tree_lrulock );
 990                 }
 991                 ic->head = ic->tail = NULL;
 992                 ic->last = id;
 993                 ic->count++;
 994                 return 0;
 995         }
 996         /* No free block, create that too */
 997         if ( !ic->tail || ( ic->count & (IDBLOCK-1)) == 0) {
 998                 ice = NULL;
 999                 ldap_pvt_thread_mutex_lock( &bdb->bi_idl_tree_lrulock );
1000                 if ( bdb->bi_idl_cache_size >= bdb->bi_idl_cache_max_size ) {
1001                         ldap_pvt_thread_mutex_unlock( &bdb->bi_idl_tree_lrulock );
1002                         rc = bdb_tool_idl_flush_db( db, ic );
1003                         if ( rc )
1004                                 return rc;
1005                         avl_insert( (Avlnode **)&db->app_private, ic, bdb_tool_idl_cmp,
1006                                 avl_dup_error );
1007                         ldap_pvt_thread_mutex_lock( &bdb->bi_idl_tree_lrulock );
1008                 }
1009                 bdb->bi_idl_cache_size++;
1010                 if ( bdb_tool_idl_free_list ) {
1011                         ice = bdb_tool_idl_free_list;
1012                         bdb_tool_idl_free_list = ice->next;
1013                 }
1014                 ldap_pvt_thread_mutex_unlock( &bdb->bi_idl_tree_lrulock );
1015                 if ( !ice ) {
1016                         ice = ch_malloc( sizeof( bdb_tool_idl_cache_entry ));
1017                 }
1018                 memset( ice, 0, sizeof( *ice ));
1019                 if ( !ic->head ) {
1020                         ic->head = ice;
1021                 } else {
1022                         ic->tail->next = ice;
1023                 }
1024                 ic->tail = ice;
1025                 if ( !ic->count )
1026                         ic->first = id;
1027         }
1028         ice = ic->tail;
1029         ice->ids[ ic->count & (IDBLOCK-1) ] = id;
1030         ic->count++;
1031
1032         return 0;
1033 }
1034 #endif
1035
1036 static void *
1037 bdb_tool_index_task( void *ctx, void *ptr )
1038 {
1039         int base = *(int *)ptr;
1040
1041         free( ptr );
1042         while ( 1 ) {
1043                 ldap_pvt_thread_mutex_lock( &bdb_tool_index_mutex );
1044                 bdb_tool_index_tcount--;
1045                 ldap_pvt_thread_cond_wait( &bdb_tool_index_cond,
1046                         &bdb_tool_index_mutex );
1047                 ldap_pvt_thread_mutex_unlock( &bdb_tool_index_mutex );
1048                 if ( slapd_shutdown )
1049                         break;
1050
1051                 bdb_tool_index_threads[base] = bdb_index_recrun( bdb_tool_ix_op,
1052                         bdb_tool_info, bdb_tool_index_rec, bdb_tool_ix_id, base );
1053         }
1054
1055         return NULL;
1056 }