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 2000-2007 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;
 232         ID nid;
 233
 234         BDB_ID2DISK( id, &nid );
 235         key.ulen = key.size = sizeof(ID);
 236         key.flags = DB_DBT_USERMEM;
 237         key.data = &nid;
 238
 239         rc = cursor->c_get( cursor, &key, &data, DB_SET );
 240         if ( rc == 0 ) {
 241                 *e = bdb_tool_entry_get( be, id );
 242                 if ( *e == NULL )
 243                         rc = LDAP_OTHER;
 244         }
 245         key.data = NULL;
 246
 247         return rc;
 248 }
 249
 250 Entry* bdb_tool_entry_get( BackendDB *be, ID id )
 251 {
 252         int rc;
 253         Entry *e = NULL;
 254         struct berval bv;
 255
 256         assert( be != NULL );
 257         assert( slapMode & SLAP_TOOL_MODE );
 258         assert( data.data != NULL );
 259
 260         DBT2bv( &data, &bv );
 261
 262 #ifdef SLAP_ZONE_ALLOC
 263         /* FIXME: will add ctx later */
 264         rc = entry_decode( &bv, &e, NULL );
 265 #else
 266         rc = entry_decode( &bv, &e );
 267 #endif
 268
 269         if( rc == LDAP_SUCCESS ) {
 270                 e->e_id = id;
 271         }
 272 #ifdef BDB_HIER
 273         if ( slapMode & SLAP_TOOL_READONLY ) {
 274                 EntryInfo *ei = NULL;
 275                 Operation op = {0};
 276                 Opheader ohdr = {0};
 277
 278                 op.o_hdr = &ohdr;
 279                 op.o_bd = be;
 280                 op.o_tmpmemctx = NULL;
 281                 op.o_tmpmfuncs = &ch_mfuncs;
 282
 283                 rc = bdb_cache_find_parent( &op, NULL, cursor->locker, id, &ei );
 284                 if ( rc == LDAP_SUCCESS ) {
 285                         bdb_cache_entryinfo_unlock( ei );
 286                         e->e_private = ei;
 287                         ei->bei_e = e;
 288                         bdb_fix_dn( e, 0 );
 289                         ei->bei_e = NULL;
 290                         e->e_private = NULL;
 291                 }
 292         }
 293 #endif
 294         return e;
 295 }
 296
 297 static int bdb_tool_next_id(
 298         Operation *op,
 299         DB_TXN *tid,
 300         Entry *e,
 301         struct berval *text,
 302         int hole )
 303 {
 304         struct berval dn = e->e_name;
 305         struct berval ndn = e->e_nname;
 306         struct berval pdn, npdn;
 307         EntryInfo *ei = NULL, eidummy;
 308         int rc;
 309
 310         if (ndn.bv_len == 0) {
 311                 e->e_id = 0;
 312                 return 0;
 313         }
 314
 315         rc = bdb_cache_find_ndn( op, tid, &ndn, &ei );
 316         if ( ei ) bdb_cache_entryinfo_unlock( ei );
 317         if ( rc == DB_NOTFOUND ) {
 318                 if ( !be_issuffix( op->o_bd, &ndn ) ) {
 319                         ID eid = e->e_id;
 320                         dnParent( &dn, &pdn );
 321                         dnParent( &ndn, &npdn );
 322                         e->e_name = pdn;
 323                         e->e_nname = npdn;
 324                         rc = bdb_tool_next_id( op, tid, e, text, 1 );
 325                         e->e_name = dn;
 326                         e->e_nname = ndn;
 327                         if ( rc ) {
 328                                 return rc;
 329                         }
 330                         /* If parent didn't exist, it was created just now
 331                          * and its ID is now in e->e_id. Make sure the current
 332                          * entry gets added under the new parent ID.
 333                          */
 334                         if ( eid != e->e_id ) {
 335                                 eidummy.bei_id = e->e_id;
 336                                 ei = &eidummy;
 337                         }
 338                 }
 339                 rc = bdb_next_id( op->o_bd, tid, &e->e_id );
 340                 if ( rc ) {
 341                         snprintf( text->bv_val, text->bv_len,
 342                                 "next_id failed: %s (%d)",
 343                                 db_strerror(rc), rc );
 344                 Debug( LDAP_DEBUG_ANY,
 345                         "=> bdb_tool_next_id: %s\n", text->bv_val, 0, 0 );
 346                         return rc;
 347                 }
 348                 rc = bdb_dn2id_add( op, tid, ei, e );
 349                 if ( rc ) {
 350                         snprintf( text->bv_val, text->bv_len,
 351                                 "dn2id_add failed: %s (%d)",
 352                                 db_strerror(rc), rc );
 353                 Debug( LDAP_DEBUG_ANY,
 354                         "=> bdb_tool_next_id: %s\n", text->bv_val, 0, 0 );
 355                 } else if ( hole ) {
 356                         if ( nholes == nhmax - 1 ) {
 357                                 if ( holes == hbuf ) {
 358                                         holes = ch_malloc( nhmax * sizeof(dn_id) * 2 );
 359                                         AC_MEMCPY( holes, hbuf, sizeof(hbuf) );
 360                                 } else {
 361                                         holes = ch_realloc( holes, nhmax * sizeof(dn_id) * 2 );
 362                                 }
 363                                 nhmax *= 2;
 364                         }
 365                         ber_dupbv( &holes[nholes].dn, &ndn );
 366                         holes[nholes++].id = e->e_id;
 367                 }
 368         } else if ( !hole ) {
 369                 unsigned i;
 370
 371                 e->e_id = ei->bei_id;
 372
 373                 for ( i=0; i<nholes; i++) {
 374                         if ( holes[i].id == e->e_id ) {
 375                                 int j;
 376                                 free(holes[i].dn.bv_val);
 377                                 for (j=i;j<nholes;j++) holes[j] = holes[j+1];
 378                                 holes[j].id = 0;
 379                                 nholes--;
 380                                 break;
 381                         } else if ( holes[i].id > e->e_id ) {
 382                                 break;
 383                         }
 384                 }
 385         }
 386         return rc;
 387 }
 388
 389 static int
 390 bdb_tool_index_add(
 391         Operation *op,
 392         DB_TXN *txn,
 393         Entry *e )
 394 {
 395         struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
 396
 397         if (!bdb->bi_nattrs)
 398                 return 0;
 399
 400         if ( slapMode & SLAP_TOOL_QUICK ) {
 401                 IndexRec *ir;
 402                 int i, rc;
 403                 Attribute *a;
 404
 405                 ir = bdb_tool_index_rec;
 406                 memset(ir, 0, bdb->bi_nattrs * sizeof( IndexRec ));
 407
 408                 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 409                         rc = bdb_index_recset( bdb, a, a->a_desc->ad_type,
 410                                 &a->a_desc->ad_tags, ir );
 411                         if ( rc )
 412                                 return rc;
 413                 }
 414                 bdb_tool_ix_id = e->e_id;
 415                 bdb_tool_ix_op = op;
 416                 ldap_pvt_thread_mutex_lock( &bdb_tool_index_mutex );
 417                 /* Wait for all threads to be ready */
 418                 while ( bdb_tool_index_tcount ) {
 419                         ldap_pvt_thread_mutex_unlock( &bdb_tool_index_mutex );
 420                         ldap_pvt_thread_yield();
 421                         ldap_pvt_thread_mutex_lock( &bdb_tool_index_mutex );
 422                 }
 423                 for ( i=1; i<slap_tool_thread_max; i++ )
 424                         bdb_tool_index_threads[i] = LDAP_BUSY;
 425                 bdb_tool_index_tcount = slap_tool_thread_max - 1;
 426                 ldap_pvt_thread_cond_broadcast( &bdb_tool_index_cond );
 427                 ldap_pvt_thread_mutex_unlock( &bdb_tool_index_mutex );
 428                 rc = bdb_index_recrun( op, bdb, ir, e->e_id, 0 );
 429                 if ( rc )
 430                         return rc;
 431                 for ( i=1; i<slap_tool_thread_max; i++ ) {
 432                         if ( bdb_tool_index_threads[i] == LDAP_BUSY ) {
 433                                 ldap_pvt_thread_yield();
 434                                 i--;
 435                                 continue;
 436                         }
 437                         if ( bdb_tool_index_threads[i] )
 438                                 return bdb_tool_index_threads[i];
 439                 }
 440                 return 0;
 441         } else {
 442                 return bdb_index_entry_add( op, txn, e );
 443         }
 444 }
 445
 446 ID bdb_tool_entry_put(
 447         BackendDB *be,
 448         Entry *e,
 449         struct berval *text )
 450 {
 451         int rc;
 452         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 453         DB_TXN *tid = NULL;
 454         Operation op = {0};
 455         Opheader ohdr = {0};
 456
 457         assert( be != NULL );
 458         assert( slapMode & SLAP_TOOL_MODE );
 459
 460         assert( text != NULL );
 461         assert( text->bv_val != NULL );
 462         assert( text->bv_val[0] == '\0' );      /* overconservative? */
 463
 464         Debug( LDAP_DEBUG_TRACE, "=> " LDAP_XSTRING(bdb_tool_entry_put)
 465                 "( %ld, \"%s\" )\n", (long) e->e_id, e->e_dn, 0 );
 466
 467         if (! (slapMode & SLAP_TOOL_QUICK)) {
 468         rc = TXN_BEGIN( bdb->bi_dbenv, NULL, &tid,
 469                 bdb->bi_db_opflags );
 470         if( rc != 0 ) {
 471                 snprintf( text->bv_val, text->bv_len,
 472                         "txn_begin failed: %s (%d)",
 473                         db_strerror(rc), rc );
 474                 Debug( LDAP_DEBUG_ANY,
 475                         "=> " LDAP_XSTRING(bdb_tool_entry_put) ": %s\n",
 476                          text->bv_val, 0, 0 );
 477                 return NOID;
 478         }
 479         }
 480
 481         op.o_hdr = &ohdr;
 482         op.o_bd = be;
 483         op.o_tmpmemctx = NULL;
 484         op.o_tmpmfuncs = &ch_mfuncs;
 485
 486         /* add dn2id indices */
 487         rc = bdb_tool_next_id( &op, tid, e, text, 0 );
 488         if( rc != 0 ) {
 489                 goto done;
 490         }
 491
 492         if ( !bdb->bi_linear_index )
 493                 rc = bdb_tool_index_add( &op, tid, e );
 494         if( rc != 0 ) {
 495                 snprintf( text->bv_val, text->bv_len,
 496                                 "index_entry_add failed: %s (%d)",
 497                                 db_strerror(rc), rc );
 498                 Debug( LDAP_DEBUG_ANY,
 499                         "=> " LDAP_XSTRING(bdb_tool_entry_put) ": %s\n",
 500                         text->bv_val, 0, 0 );
 501                 goto done;
 502         }
 503
 504         /* id2entry index */
 505         rc = bdb_id2entry_add( be, tid, e );
 506         if( rc != 0 ) {
 507                 snprintf( text->bv_val, text->bv_len,
 508                                 "id2entry_add failed: %s (%d)",
 509                                 db_strerror(rc), rc );
 510                 Debug( LDAP_DEBUG_ANY,
 511                         "=> " LDAP_XSTRING(bdb_tool_entry_put) ": %s\n",
 512                         text->bv_val, 0, 0 );
 513                 goto done;
 514         }
 515
 516 done:
 517         if( rc == 0 ) {
 518                 if ( !( slapMode & SLAP_TOOL_QUICK )) {
 519                 rc = TXN_COMMIT( tid, 0 );
 520                 if( rc != 0 ) {
 521                         snprintf( text->bv_val, text->bv_len,
 522                                         "txn_commit failed: %s (%d)",
 523                                         db_strerror(rc), rc );
 524                         Debug( LDAP_DEBUG_ANY,
 525                                 "=> " LDAP_XSTRING(bdb_tool_entry_put) ": %s\n",
 526                                 text->bv_val, 0, 0 );
 527                         e->e_id = NOID;
 528                 }
 529                 }
 530
 531         } else {
 532                 if ( !( slapMode & SLAP_TOOL_QUICK )) {
 533                 TXN_ABORT( tid );
 534                 snprintf( text->bv_val, text->bv_len,
 535                         "txn_aborted! %s (%d)",
 536                         db_strerror(rc), rc );
 537                 Debug( LDAP_DEBUG_ANY,
 538                         "=> " LDAP_XSTRING(bdb_tool_entry_put) ": %s\n",
 539                         text->bv_val, 0, 0 );
 540                 }
 541                 e->e_id = NOID;
 542         }
 543
 544         return e->e_id;
 545 }
 546
 547 int bdb_tool_entry_reindex(
 548         BackendDB *be,
 549         ID id )
 550 {
 551         struct bdb_info *bi = (struct bdb_info *) be->be_private;
 552         int rc;
 553         Entry *e;
 554         DB_TXN *tid = NULL;
 555         Operation op = {0};
 556         Opheader ohdr = {0};
 557
 558         Debug( LDAP_DEBUG_ARGS,
 559                 "=> " LDAP_XSTRING(bdb_tool_entry_reindex) "( %ld )\n",
 560                 (long) id, 0, 0 );
 561
 562         /* No indexes configured, nothing to do. Could return an
 563          * error here to shortcut things.
 564          */
 565         if (!bi->bi_attrs) {
 566                 return 0;
 567         }
 568
 569         /* Get the first attribute to index */
 570         if (bi->bi_linear_index && !index_nattrs) {
 571                 index_nattrs = bi->bi_nattrs - 1;
 572                 bi->bi_nattrs = 1;
 573         }
 574
 575         e = bdb_tool_entry_get( be, id );
 576
 577         if( e == NULL ) {
 578                 Debug( LDAP_DEBUG_ANY,
 579                         LDAP_XSTRING(bdb_tool_entry_reindex)
 580                         ": could not locate id=%ld\n",
 581                         (long) id, 0, 0 );
 582                 return -1;
 583         }
 584
 585         if (! (slapMode & SLAP_TOOL_QUICK)) {
 586         rc = TXN_BEGIN( bi->bi_dbenv, NULL, &tid, bi->bi_db_opflags );
 587         if( rc != 0 ) {
 588                 Debug( LDAP_DEBUG_ANY,
 589                         "=> " LDAP_XSTRING(bdb_tool_entry_reindex) ": "
 590                         "txn_begin failed: %s (%d)\n",
 591                         db_strerror(rc), rc, 0 );
 592                 goto done;
 593         }
 594         }
 595
 596         /*
 597          * just (re)add them for now
 598          * assume that some other routine (not yet implemented)
 599          * will zap index databases
 600          *
 601          */
 602
 603         Debug( LDAP_DEBUG_TRACE,
 604                 "=> " LDAP_XSTRING(bdb_tool_entry_reindex) "( %ld, \"%s\" )\n",
 605                 (long) id, e->e_dn, 0 );
 606
 607         op.o_hdr = &ohdr;
 608         op.o_bd = be;
 609         op.o_tmpmemctx = NULL;
 610         op.o_tmpmfuncs = &ch_mfuncs;
 611
 612         rc = bdb_tool_index_add( &op, tid, e );
 613
 614 done:
 615         if( rc == 0 ) {
 616                 if (! (slapMode & SLAP_TOOL_QUICK)) {
 617                 rc = TXN_COMMIT( tid, 0 );
 618                 if( rc != 0 ) {
 619                         Debug( LDAP_DEBUG_ANY,
 620                                 "=> " LDAP_XSTRING(bdb_tool_entry_reindex)
 621                                 ": txn_commit failed: %s (%d)\n",
 622                                 db_strerror(rc), rc, 0 );
 623                         e->e_id = NOID;
 624                 }
 625                 }
 626
 627         } else {
 628                 if (! (slapMode & SLAP_TOOL_QUICK)) {
 629                 TXN_ABORT( tid );
 630                 Debug( LDAP_DEBUG_ANY,
 631                         "=> " LDAP_XSTRING(bdb_tool_entry_reindex)
 632                         ": txn_aborted! %s (%d)\n",
 633                         db_strerror(rc), rc, 0 );
 634                 }
 635                 e->e_id = NOID;
 636         }
 637         bdb_entry_release( &op, e, 0 );
 638
 639         return rc;
 640 }
 641
 642 ID bdb_tool_entry_modify(
 643         BackendDB *be,
 644         Entry *e,
 645         struct berval *text )
 646 {
 647         int rc;
 648         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 649         DB_TXN *tid = NULL;
 650         Operation op = {0};
 651         Opheader ohdr = {0};
 652
 653         assert( be != NULL );
 654         assert( slapMode & SLAP_TOOL_MODE );
 655
 656         assert( text != NULL );
 657         assert( text->bv_val != NULL );
 658         assert( text->bv_val[0] == '\0' );      /* overconservative? */
 659
 660         assert ( e->e_id != NOID );
 661
 662         Debug( LDAP_DEBUG_TRACE,
 663                 "=> " LDAP_XSTRING(bdb_tool_entry_modify) "( %ld, \"%s\" )\n",
 664                 (long) e->e_id, e->e_dn, 0 );
 665
 666         if (! (slapMode & SLAP_TOOL_QUICK)) {
 667         rc = TXN_BEGIN( bdb->bi_dbenv, NULL, &tid,
 668                 bdb->bi_db_opflags );
 669         if( rc != 0 ) {
 670                 snprintf( text->bv_val, text->bv_len,
 671                         "txn_begin failed: %s (%d)",
 672                         db_strerror(rc), rc );
 673                 Debug( LDAP_DEBUG_ANY,
 674                         "=> " LDAP_XSTRING(bdb_tool_entry_modify) ": %s\n",
 675                          text->bv_val, 0, 0 );
 676                 return NOID;
 677         }
 678         }
 679
 680         op.o_hdr = &ohdr;
 681         op.o_bd = be;
 682         op.o_tmpmemctx = NULL;
 683         op.o_tmpmfuncs = &ch_mfuncs;
 684
 685         /* id2entry index */
 686         rc = bdb_id2entry_update( be, tid, e );
 687         if( rc != 0 ) {
 688                 snprintf( text->bv_val, text->bv_len,
 689                                 "id2entry_add failed: %s (%d)",
 690                                 db_strerror(rc), rc );
 691                 Debug( LDAP_DEBUG_ANY,
 692                         "=> " LDAP_XSTRING(bdb_tool_entry_modify) ": %s\n",
 693                         text->bv_val, 0, 0 );
 694                 goto done;
 695         }
 696
 697 done:
 698         if( rc == 0 ) {
 699                 if (! (slapMode & SLAP_TOOL_QUICK)) {
 700                 rc = TXN_COMMIT( tid, 0 );
 701                 if( rc != 0 ) {
 702                         snprintf( text->bv_val, text->bv_len,
 703                                         "txn_commit failed: %s (%d)",
 704                                         db_strerror(rc), rc );
 705                         Debug( LDAP_DEBUG_ANY,
 706                                 "=> " LDAP_XSTRING(bdb_tool_entry_modify) ": "
 707                                 "%s\n", text->bv_val, 0, 0 );
 708                         e->e_id = NOID;
 709                 }
 710                 }
 711
 712         } else {
 713                 if (! (slapMode & SLAP_TOOL_QUICK)) {
 714                 TXN_ABORT( tid );
 715                 snprintf( text->bv_val, text->bv_len,
 716                         "txn_aborted! %s (%d)",
 717                         db_strerror(rc), rc );
 718                 Debug( LDAP_DEBUG_ANY,
 719                         "=> " LDAP_XSTRING(bdb_tool_entry_modify) ": %s\n",
 720                         text->bv_val, 0, 0 );
 721                 }
 722                 e->e_id = NOID;
 723         }
 724
 725         return e->e_id;
 726 }
 727
 728 #ifdef BDB_TOOL_IDL_CACHING
 729 static int
 730 bdb_tool_idl_cmp( const void *v1, const void *v2 )
 731 {
 732         const bdb_tool_idl_cache *c1 = v1, *c2 = v2;
 733         int rc;
 734
 735         if (( rc = c1->kstr.bv_len - c2->kstr.bv_len )) return rc;
 736         return memcmp( c1->kstr.bv_val, c2->kstr.bv_val, c1->kstr.bv_len );
 737 }
 738
 739 static int
 740 bdb_tool_idl_flush_one( void *v1, void *arg )
 741 {
 742         bdb_tool_idl_cache *ic = v1;
 743         DB *db = arg;
 744         struct bdb_info *bdb = bdb_tool_info;
 745         bdb_tool_idl_cache_entry *ice;
 746         DBC *curs;
 747         DBT key, data;
 748         int i, rc;
 749         ID id, nid;
 750
 751         /* Freshly allocated, ignore it */
 752         if ( !ic->head && ic->count <= BDB_IDL_DB_SIZE ) {
 753                 return 0;
 754         }
 755
 756         rc = db->cursor( db, NULL, &curs, 0 );
 757         if ( rc )
 758                 return -1;
 759
 760         DBTzero( &key );
 761         DBTzero( &data );
 762
 763         bv2DBT( &ic->kstr, &key );
 764
 765         data.size = data.ulen = sizeof( ID );
 766         data.flags = DB_DBT_USERMEM;
 767         data.data = &nid;
 768
 769         rc = curs->c_get( curs, &key, &data, DB_SET );
 770         /* If key already exists and we're writing a range... */
 771         if ( rc == 0 && ic->count > BDB_IDL_DB_SIZE ) {
 772                 /* If it's not currently a range, must delete old info */
 773                 if ( nid ) {
 774                         /* Skip lo */
 775                         while ( curs->c_get( curs, &key, &data, DB_NEXT_DUP ) == 0 )
 776                                 curs->c_del( curs, 0 );
 777
 778                         nid = 0;
 779                         /* Store range marker */
 780                         curs->c_put( curs, &key, &data, DB_KEYFIRST );
 781                 } else {
 782
 783                         /* Skip lo */
 784                         rc = curs->c_get( curs, &key, &data, DB_NEXT_DUP );
 785
 786                         /* Get hi */
 787                         rc = curs->c_get( curs, &key, &data, DB_NEXT_DUP );
 788
 789                         /* Delete hi */
 790                         curs->c_del( curs, 0 );
 791                 }
 792                 BDB_ID2DISK( ic->last, &nid );
 793                 curs->c_put( curs, &key, &data, DB_KEYLAST );
 794                 rc = 0;
 795         } else if ( rc && rc != DB_NOTFOUND ) {
 796                 rc = -1;
 797         } else if ( ic->count > BDB_IDL_DB_SIZE ) {
 798                 /* range, didn't exist before */
 799                 nid = 0;
 800                 rc = curs->c_put( curs, &key, &data, DB_KEYLAST );
 801                 if ( rc == 0 ) {
 802                         BDB_ID2DISK( ic->first, &nid );
 803                         rc = curs->c_put( curs, &key, &data, DB_KEYLAST );
 804                         if ( rc == 0 ) {
 805                                 BDB_ID2DISK( ic->last, &nid );
 806                                 rc = curs->c_put( curs, &key, &data, DB_KEYLAST );
 807                         }
 808                 }
 809                 if ( rc ) {
 810                         rc = -1;
 811                 }
 812         } else {
 813                 int n;
 814
 815                 /* Just a normal write */
 816                 rc = 0;
 817                 for ( ice = ic->head, n=0; ice; ice = ice->next, n++ ) {
 818                         int end;
 819                         if ( ice->next ) {
 820                                 end = IDBLOCK;
 821                         } else {
 822                                 end = ic->count & (IDBLOCK-1);
 823                                 if ( !end )
 824                                         end = IDBLOCK;
 825                         }
 826                         for ( i=0; i<end; i++ ) {
 827                                 if ( !ice->ids[i] ) continue;
 828                                 BDB_ID2DISK( ice->ids[i], &nid );
 829                                 rc = curs->c_put( curs, &key, &data, DB_NODUPDATA );
 830                                 if ( rc ) {
 831                                         if ( rc == DB_KEYEXIST ) {
 832                                                 rc = 0;
 833                                                 continue;
 834                                         }
 835                                         rc = -1;
 836                                         break;
 837                                 }
 838                         }
 839                         if ( rc ) {
 840                                 rc = -1;
 841                                 break;
 842                         }
 843                 }
 844                 if ( ic->head ) {
 845                         ldap_pvt_thread_mutex_lock( &bdb->bi_idl_tree_lrulock );
 846                         ic->tail->next = bdb_tool_idl_free_list;
 847                         bdb_tool_idl_free_list = ic->head;
 848                         bdb->bi_idl_cache_size -= n;
 849                         ldap_pvt_thread_mutex_unlock( &bdb->bi_idl_tree_lrulock );
 850                 }
 851         }
 852         if ( ic != db->app_private ) {
 853                 ch_free( ic );
 854         } else {
 855                 ic->head = ic->tail = NULL;
 856         }
 857         curs->c_close( curs );
 858         return rc;
 859 }
 860
 861 static int
 862 bdb_tool_idl_flush_db( DB *db, bdb_tool_idl_cache *ic )
 863 {
 864         Avlnode *root = db->app_private;
 865         int rc;
 866
 867         db->app_private = ic;
 868         rc = avl_apply( root, bdb_tool_idl_flush_one, db, -1, AVL_INORDER );
 869         avl_free( root, NULL );
 870         db->app_private = NULL;
 871         if ( rc != -1 )
 872                 rc = 0;
 873         return rc;
 874 }
 875
 876 static int
 877 bdb_tool_idl_flush( BackendDB *be )
 878 {
 879         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 880         DB *db;
 881         Avlnode *root;
 882         int i, rc = 0;
 883
 884         for ( i=BDB_NDB; i < bdb->bi_ndatabases; i++ ) {
 885                 db = bdb->bi_databases[i]->bdi_db;
 886                 if ( !db->app_private ) continue;
 887                 rc = bdb_tool_idl_flush_db( db, NULL );
 888                 if ( rc )
 889                         break;
 890         }
 891         if ( !rc ) {
 892                 bdb->bi_idl_cache_size = 0;
 893         }
 894         return rc;
 895 }
 896
 897 int bdb_tool_idl_add(
 898         BackendDB *be,
 899         DB *db,
 900         DB_TXN *txn,
 901         DBT *key,
 902         ID id )
 903 {
 904         struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 905         bdb_tool_idl_cache *ic, itmp;
 906         bdb_tool_idl_cache_entry *ice;
 907         int rc;
 908
 909         if ( !bdb->bi_idl_cache_max_size )
 910                 return bdb_idl_insert_key( be, db, txn, key, id );
 911
 912         DBT2bv( key, &itmp.kstr );
 913
 914         ic = avl_find( (Avlnode *)db->app_private, &itmp, bdb_tool_idl_cmp );
 915
 916         /* No entry yet, create one */
 917         if ( !ic ) {
 918                 DBC *curs;
 919                 DBT data;
 920                 ID nid;
 921                 int rc;
 922
 923                 ic = ch_malloc( sizeof( bdb_tool_idl_cache ) + itmp.kstr.bv_len );
 924                 ic->kstr.bv_len = itmp.kstr.bv_len;
 925                 ic->kstr.bv_val = (char *)(ic+1);
 926                 AC_MEMCPY( ic->kstr.bv_val, itmp.kstr.bv_val, ic->kstr.bv_len );
 927                 ic->head = ic->tail = NULL;
 928                 ic->last = 0;
 929                 ic->count = 0;
 930                 avl_insert( (Avlnode **)&db->app_private, ic, bdb_tool_idl_cmp,
 931                         avl_dup_error );
 932
 933                 /* load existing key count here */
 934                 rc = db->cursor( db, NULL, &curs, 0 );
 935                 if ( rc ) return rc;
 936
 937                 data.ulen = sizeof( ID );
 938                 data.flags = DB_DBT_USERMEM;
 939                 data.data = &nid;
 940                 rc = curs->c_get( curs, key, &data, DB_SET );
 941                 if ( rc == 0 ) {
 942                         if ( nid == 0 ) {
 943                                 ic->count = BDB_IDL_DB_SIZE+1;
 944                         } else {
 945                                 db_recno_t count;
 946
 947                                 curs->c_count( curs, &count, 0 );
 948                                 ic->count = count;
 949                                 BDB_DISK2ID( &nid, &ic->first );
 950                         }
 951                 }
 952                 curs->c_close( curs );
 953         }
 954         /* are we a range already? */
 955         if ( ic->count > BDB_IDL_DB_SIZE ) {
 956                 ic->last = id;
 957                 return 0;
 958         /* Are we at the limit, and converting to a range? */
 959         } else if ( ic->count == BDB_IDL_DB_SIZE ) {
 960                 int n;
 961                 for ( ice = ic->head, n=0; ice; ice = ice->next, n++ )
 962                         /* counting */ ;
 963                 if ( n ) {
 964                         ldap_pvt_thread_mutex_lock( &bdb->bi_idl_tree_lrulock );
 965                         ic->tail->next = bdb_tool_idl_free_list;
 966                         bdb_tool_idl_free_list = ic->head;
 967                         bdb->bi_idl_cache_size -= n;
 968                         ldap_pvt_thread_mutex_unlock( &bdb->bi_idl_tree_lrulock );
 969                 }
 970                 ic->head = ic->tail = NULL;
 971                 ic->last = id;
 972                 ic->count++;
 973                 return 0;
 974         }
 975         /* No free block, create that too */
 976         if ( !ic->tail || ( ic->count & (IDBLOCK-1)) == 0) {
 977                 ice = NULL;
 978                 ldap_pvt_thread_mutex_lock( &bdb->bi_idl_tree_lrulock );
 979                 if ( bdb->bi_idl_cache_size >= bdb->bi_idl_cache_max_size ) {
 980                         ldap_pvt_thread_mutex_unlock( &bdb->bi_idl_tree_lrulock );
 981                         rc = bdb_tool_idl_flush_db( db, ic );
 982                         if ( rc )
 983                                 return rc;
 984                         avl_insert( (Avlnode **)&db->app_private, ic, bdb_tool_idl_cmp,
 985                                 avl_dup_error );
 986                         ldap_pvt_thread_mutex_lock( &bdb->bi_idl_tree_lrulock );
 987                 }
 988                 bdb->bi_idl_cache_size++;
 989                 if ( bdb_tool_idl_free_list ) {
 990                         ice = bdb_tool_idl_free_list;
 991                         bdb_tool_idl_free_list = ice->next;
 992                 }
 993                 ldap_pvt_thread_mutex_unlock( &bdb->bi_idl_tree_lrulock );
 994                 if ( !ice ) {
 995                         ice = ch_malloc( sizeof( bdb_tool_idl_cache_entry ));
 996                 }
 997                 memset( ice, 0, sizeof( *ice ));
 998                 if ( !ic->head ) {
 999                         ic->head = ice;
1000                 } else {
1001                         ic->tail->next = ice;
1002                 }
1003                 ic->tail = ice;
1004                 if ( !ic->count )
1005                         ic->first = id;
1006         }
1007         ice = ic->tail;
1008         ice->ids[ ic->count & (IDBLOCK-1) ] = id;
1009         ic->count++;
1010
1011         return 0;
1012 }
1013 #endif
1014
1015 static void *
1016 bdb_tool_index_task( void *ctx, void *ptr )
1017 {
1018         int base = *(int *)ptr;
1019
1020         free( ptr );
1021         while ( 1 ) {
1022                 ldap_pvt_thread_mutex_lock( &bdb_tool_index_mutex );
1023                 bdb_tool_index_tcount--;
1024                 ldap_pvt_thread_cond_wait( &bdb_tool_index_cond,
1025                         &bdb_tool_index_mutex );
1026                 ldap_pvt_thread_mutex_unlock( &bdb_tool_index_mutex );
1027                 if ( slapd_shutdown )
1028                         break;
1029
1030                 bdb_tool_index_threads[base] = bdb_index_recrun( bdb_tool_ix_op,
1031                         bdb_tool_info, bdb_tool_index_rec, bdb_tool_ix_id, base );
1032         }
1033
1034         return NULL;
1035 }