git.sur5r.net Git - openldap/blob - servers/slapd/back-mdb/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 2011-2012 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 #include <ac/errno.h>
  22
  23 #define AVL_INTERNAL
  24 #include "back-mdb.h"
  25 #include "idl.h"
  26
  27 #ifdef MDB_TOOL_IDL_CACHING
  28 static int mdb_tool_idl_flush( BackendDB *be, MDB_txn *txn );
  29
  30 #define IDBLOCK 1024
  31
  32 typedef struct mdb_tool_idl_cache_entry {
  33         struct mdb_tool_idl_cache_entry *next;
  34         ID ids[IDBLOCK];
  35 } mdb_tool_idl_cache_entry;
  36
  37 typedef struct mdb_tool_idl_cache {
  38         struct berval kstr;
  39         mdb_tool_idl_cache_entry *head, *tail;
  40         ID first, last;
  41         int count;
  42         short offset;
  43         short flags;
  44 } mdb_tool_idl_cache;
  45 #define WAS_FOUND       0x01
  46 #define WAS_RANGE       0x02
  47
  48 #define MDB_TOOL_IDL_FLUSH(be, txn)     mdb_tool_idl_flush(be, txn)
  49 #else
  50 #define MDB_TOOL_IDL_FLUSH(be, txn)
  51 #endif /* MDB_TOOL_IDL_CACHING */
  52
  53 static MDB_txn *txn = NULL, *txi = NULL;
  54 static MDB_cursor *cursor = NULL, *idcursor = NULL;
  55 static MDB_cursor *mcp = NULL, *mcd = NULL;
  56 static MDB_val key, data;
  57 static ID previd = NOID;
  58
  59 typedef struct dn_id {
  60         ID id;
  61         struct berval dn;
  62 } dn_id;
  63
  64 #define HOLE_SIZE       4096
  65 static dn_id hbuf[HOLE_SIZE], *holes = hbuf;
  66 static unsigned nhmax = HOLE_SIZE;
  67 static unsigned nholes;
  68
  69 static struct berval    *tool_base;
  70 static int              tool_scope;
  71 static Filter           *tool_filter;
  72 static Entry            *tool_next_entry;
  73
  74 static ID mdb_tool_ix_id;
  75 static Operation *mdb_tool_ix_op;
  76 static MDB_txn *mdb_tool_ix_txn;
  77 static int mdb_tool_index_tcount, mdb_tool_threads;
  78 static IndexRec *mdb_tool_index_rec;
  79 static struct mdb_info *mdb_tool_info;
  80 static ldap_pvt_thread_mutex_t mdb_tool_index_mutex;
  81 static ldap_pvt_thread_cond_t mdb_tool_index_cond_main;
  82 static ldap_pvt_thread_cond_t mdb_tool_index_cond_work;
  83 static void * mdb_tool_index_task( void *ctx, void *ptr );
  84
  85 static int      mdb_writes, mdb_writes_per_commit;
  86
  87 static int
  88 mdb_tool_entry_get_int( BackendDB *be, ID id, Entry **ep );
  89
  90 int mdb_tool_entry_open(
  91         BackendDB *be, int mode )
  92 {
  93         /* In Quick mode, commit once per 1000 entries */
  94         mdb_writes = 0;
  95         if ( slapMode & SLAP_TOOL_QUICK )
  96                 mdb_writes_per_commit = 1000;
  97         else
  98                 mdb_writes_per_commit = 1;
  99
 100         /* Set up for threaded slapindex */
 101         if (( slapMode & (SLAP_TOOL_QUICK|SLAP_TOOL_READONLY)) == SLAP_TOOL_QUICK ) {
 102                 if ( !mdb_tool_info ) {
 103                         struct mdb_info *mdb = (struct mdb_info *) be->be_private;
 104                         ldap_pvt_thread_mutex_init( &mdb_tool_index_mutex );
 105                         ldap_pvt_thread_cond_init( &mdb_tool_index_cond_main );
 106                         ldap_pvt_thread_cond_init( &mdb_tool_index_cond_work );
 107                         if ( mdb->mi_nattrs ) {
 108                                 int i;
 109                                 mdb_tool_threads = slap_tool_thread_max - 1;
 110                                 if ( mdb_tool_threads > 1 ) {
 111                                         mdb_tool_index_rec = ch_calloc( mdb->mi_nattrs, sizeof( IndexRec ));
 112                                         mdb_tool_index_tcount = mdb_tool_threads - 1;
 113                                         for (i=1; i<mdb_tool_threads; i++) {
 114                                                 int *ptr = ch_malloc( sizeof( int ));
 115                                                 *ptr = i;
 116                                                 ldap_pvt_thread_pool_submit( &connection_pool,
 117                                                         mdb_tool_index_task, ptr );
 118                                         }
 119                                         mdb_tool_info = mdb;
 120                                 }
 121                         }
 122                 }
 123         }
 124
 125         return 0;
 126 }
 127
 128 int mdb_tool_entry_close(
 129         BackendDB *be )
 130 {
 131         if ( mdb_tool_info ) {
 132                 slapd_shutdown = 1;
 133                 ldap_pvt_thread_mutex_lock( &mdb_tool_index_mutex );
 134
 135                 /* There might still be some threads starting */
 136                 while ( mdb_tool_index_tcount > 0 ) {
 137                         ldap_pvt_thread_cond_wait( &mdb_tool_index_cond_main,
 138                                         &mdb_tool_index_mutex );
 139                 }
 140
 141                 mdb_tool_index_tcount = mdb_tool_threads - 1;
 142                 ldap_pvt_thread_cond_broadcast( &mdb_tool_index_cond_work );
 143
 144                 /* Make sure all threads are stopped */
 145                 while ( mdb_tool_index_tcount > 0 ) {
 146                         ldap_pvt_thread_cond_wait( &mdb_tool_index_cond_main,
 147                                 &mdb_tool_index_mutex );
 148                 }
 149                 ldap_pvt_thread_mutex_unlock( &mdb_tool_index_mutex );
 150
 151                 mdb_tool_info = NULL;
 152                 slapd_shutdown = 0;
 153                 ch_free( mdb_tool_index_rec );
 154                 mdb_tool_index_tcount = mdb_tool_threads - 1;
 155         }
 156
 157         if( idcursor ) {
 158                 mdb_cursor_close( idcursor );
 159                 idcursor = NULL;
 160         }
 161         if( cursor ) {
 162                 mdb_cursor_close( cursor );
 163                 cursor = NULL;
 164         }
 165         if( txn ) {
 166                 MDB_TOOL_IDL_FLUSH( be, txn );
 167                 if ( mdb_txn_commit( txn ))
 168                         return -1;
 169                 txn = NULL;
 170         }
 171
 172         if( nholes ) {
 173                 unsigned i;
 174                 fprintf( stderr, "Error, entries missing!\n");
 175                 for (i=0; i<nholes; i++) {
 176                         fprintf(stderr, "  entry %ld: %s\n",
 177                                 holes[i].id, holes[i].dn.bv_val);
 178                 }
 179                 nholes = 0;
 180                 return -1;
 181         }
 182
 183         return 0;
 184 }
 185
 186 ID
 187 mdb_tool_entry_first_x(
 188         BackendDB *be,
 189         struct berval *base,
 190         int scope,
 191         Filter *f )
 192 {
 193         tool_base = base;
 194         tool_scope = scope;
 195         tool_filter = f;
 196
 197         return mdb_tool_entry_next( be );
 198 }
 199
 200 ID mdb_tool_entry_next(
 201         BackendDB *be )
 202 {
 203         int rc;
 204         ID id;
 205         struct mdb_info *mdb;
 206
 207         assert( be != NULL );
 208         assert( slapMode & SLAP_TOOL_MODE );
 209
 210         mdb = (struct mdb_info *) be->be_private;
 211         assert( mdb != NULL );
 212
 213         if ( !txn ) {
 214                 rc = mdb_txn_begin( mdb->mi_dbenv, NULL, MDB_RDONLY, &txn );
 215                 if ( rc )
 216                         return NOID;
 217                 rc = mdb_cursor_open( txn, mdb->mi_id2entry, &cursor );
 218                 if ( rc ) {
 219                         mdb_txn_abort( txn );
 220                         return NOID;
 221                 }
 222         }
 223
 224 next:;
 225         rc = mdb_cursor_get( cursor, &key, &data, MDB_NEXT );
 226
 227         if( rc ) {
 228                 return NOID;
 229         }
 230
 231         previd = *(ID *)key.mv_data;
 232         id = previd;
 233
 234         if ( tool_filter || tool_base ) {
 235                 static Operation op = {0};
 236                 static Opheader ohdr = {0};
 237
 238                 op.o_hdr = &ohdr;
 239                 op.o_bd = be;
 240                 op.o_tmpmemctx = NULL;
 241                 op.o_tmpmfuncs = &ch_mfuncs;
 242
 243                 if ( tool_next_entry ) {
 244                         mdb_entry_release( &op, tool_next_entry, 0 );
 245                         tool_next_entry = NULL;
 246                 }
 247
 248                 rc = mdb_tool_entry_get_int( be, id, &tool_next_entry );
 249                 if ( rc == LDAP_NO_SUCH_OBJECT ) {
 250                         goto next;
 251                 }
 252
 253                 assert( tool_next_entry != NULL );
 254
 255                 if ( tool_filter && test_filter( NULL, tool_next_entry, tool_filter ) != LDAP_COMPARE_TRUE )
 256                 {
 257                         mdb_entry_release( &op, tool_next_entry, 0 );
 258                         tool_next_entry = NULL;
 259                         goto next;
 260                 }
 261         }
 262
 263         return id;
 264 }
 265
 266 ID mdb_tool_dn2id_get(
 267         Backend *be,
 268         struct berval *dn
 269 )
 270 {
 271         struct mdb_info *mdb;
 272         Operation op = {0};
 273         Opheader ohdr = {0};
 274         ID id;
 275         int rc;
 276
 277         if ( BER_BVISEMPTY(dn) )
 278                 return 0;
 279
 280         mdb = (struct mdb_info *) be->be_private;
 281
 282         if ( !txn ) {
 283                 rc = mdb_txn_begin( mdb->mi_dbenv, NULL, (slapMode & SLAP_TOOL_READONLY) != 0 ?
 284                         MDB_RDONLY : 0, &txn );
 285                 if ( rc )
 286                         return NOID;
 287         }
 288
 289         op.o_hdr = &ohdr;
 290         op.o_bd = be;
 291         op.o_tmpmemctx = NULL;
 292         op.o_tmpmfuncs = &ch_mfuncs;
 293
 294         rc = mdb_dn2id( &op, txn, NULL, dn, &id, NULL, NULL );
 295         if ( rc == MDB_NOTFOUND )
 296                 return NOID;
 297
 298         return id;
 299 }
 300
 301 static int
 302 mdb_tool_entry_get_int( BackendDB *be, ID id, Entry **ep )
 303 {
 304         Operation op = {0};
 305         Opheader ohdr = {0};
 306
 307         Entry *e = NULL;
 308         struct berval dn = BER_BVNULL, ndn = BER_BVNULL;
 309         int rc;
 310
 311         assert( be != NULL );
 312         assert( slapMode & SLAP_TOOL_MODE );
 313
 314         if ( ( tool_filter || tool_base ) && id == previd && tool_next_entry != NULL ) {
 315                 *ep = tool_next_entry;
 316                 tool_next_entry = NULL;
 317                 return LDAP_SUCCESS;
 318         }
 319
 320         if ( id != previd ) {
 321                 key.mv_size = sizeof(ID);
 322                 key.mv_data = &id;
 323                 rc = mdb_cursor_get( cursor, &key, &data, MDB_SET );
 324                 if ( rc ) {
 325                         rc = LDAP_OTHER;
 326                         goto done;
 327                 }
 328         }
 329
 330         op.o_hdr = &ohdr;
 331         op.o_bd = be;
 332         op.o_tmpmemctx = NULL;
 333         op.o_tmpmfuncs = &ch_mfuncs;
 334         if ( slapMode & SLAP_TOOL_READONLY ) {
 335                 rc = mdb_id2name( &op, txn, &idcursor, id, &dn, &ndn );
 336                 if ( rc  ) {
 337                         rc = LDAP_OTHER;
 338                         mdb_entry_return( &op, e );
 339                         e = NULL;
 340                         goto done;
 341                 }
 342                 if ( tool_base != NULL ) {
 343                         if ( !dnIsSuffixScope( &ndn, tool_base, tool_scope ) ) {
 344                                 ch_free( dn.bv_val );
 345                                 ch_free( ndn.bv_val );
 346                                 rc = LDAP_NO_SUCH_OBJECT;
 347                         }
 348                 }
 349         }
 350         rc = mdb_entry_decode( &op, &data, &e );
 351         e->e_id = id;
 352         if ( !BER_BVISNULL( &dn )) {
 353                 e->e_name = dn;
 354                 e->e_nname = ndn;
 355         } else {
 356                 e->e_name.bv_val = NULL;
 357                 e->e_nname.bv_val = NULL;
 358         }
 359
 360 done:
 361         if ( e != NULL ) {
 362                 *ep = e;
 363         }
 364
 365         return rc;
 366 }
 367
 368 Entry*
 369 mdb_tool_entry_get( BackendDB *be, ID id )
 370 {
 371         Entry *e = NULL;
 372
 373         (void)mdb_tool_entry_get_int( be, id, &e );
 374         return e;
 375 }
 376
 377 static int mdb_tool_next_id(
 378         Operation *op,
 379         MDB_txn *tid,
 380         Entry *e,
 381         struct berval *text,
 382         int hole )
 383 {
 384         struct mdb_info *mdb = (struct mdb_info *) op->o_bd->be_private;
 385         struct berval dn = e->e_name;
 386         struct berval ndn = e->e_nname;
 387         struct berval pdn, npdn, nmatched;
 388         ID id, pid = 0;
 389         int rc;
 390
 391         if (ndn.bv_len == 0) {
 392                 e->e_id = 0;
 393                 return 0;
 394         }
 395
 396         rc = mdb_dn2id( op, tid, mcp, &ndn, &id, NULL, &nmatched );
 397         if ( rc == MDB_NOTFOUND ) {
 398                 if ( !be_issuffix( op->o_bd, &ndn ) ) {
 399                         ID eid = e->e_id;
 400                         dnParent( &ndn, &npdn );
 401                         if ( nmatched.bv_len != npdn.bv_len ) {
 402                                 dnParent( &dn, &pdn );
 403                                 e->e_name = pdn;
 404                                 e->e_nname = npdn;
 405                                 rc = mdb_tool_next_id( op, tid, e, text, 1 );
 406                                 e->e_name = dn;
 407                                 e->e_nname = ndn;
 408                                 if ( rc ) {
 409                                         return rc;
 410                                 }
 411                                 /* If parent didn't exist, it was created just now
 412                                  * and its ID is now in e->e_id. Make sure the current
 413                                  * entry gets added under the new parent ID.
 414                                  */
 415                                 if ( eid != e->e_id ) {
 416                                         pid = e->e_id;
 417                                 }
 418                         } else {
 419                                 pid = id;
 420                         }
 421                 }
 422                 rc = mdb_next_id( op->o_bd, idcursor, &e->e_id );
 423                 if ( rc ) {
 424                         snprintf( text->bv_val, text->bv_len,
 425                                 "next_id failed: %s (%d)",
 426                                 mdb_strerror(rc), rc );
 427                 Debug( LDAP_DEBUG_ANY,
 428                         "=> mdb_tool_next_id: %s\n", text->bv_val, 0, 0 );
 429                         return rc;
 430                 }
 431                 rc = mdb_dn2id_add( op, mcp, mcd, pid, e );
 432                 if ( rc ) {
 433                         snprintf( text->bv_val, text->bv_len,
 434                                 "dn2id_add failed: %s (%d)",
 435                                 mdb_strerror(rc), rc );
 436                         Debug( LDAP_DEBUG_ANY,
 437                                 "=> mdb_tool_next_id: %s\n", text->bv_val, 0, 0 );
 438                 } else if ( hole ) {
 439                         MDB_val key, data;
 440                         if ( nholes == nhmax - 1 ) {
 441                                 if ( holes == hbuf ) {
 442                                         holes = ch_malloc( nhmax * sizeof(dn_id) * 2 );
 443                                         AC_MEMCPY( holes, hbuf, sizeof(hbuf) );
 444                                 } else {
 445                                         holes = ch_realloc( holes, nhmax * sizeof(dn_id) * 2 );
 446                                 }
 447                                 nhmax *= 2;
 448                         }
 449                         ber_dupbv( &holes[nholes].dn, &ndn );
 450                         holes[nholes++].id = e->e_id;
 451                         key.mv_size = sizeof(ID);
 452                         key.mv_data = &e->e_id;
 453                         data.mv_size = 0;
 454                         data.mv_data = NULL;
 455                         rc = mdb_cursor_put( idcursor, &key, &data, MDB_NOOVERWRITE );
 456                         if ( rc == MDB_KEYEXIST )
 457                                 rc = 0;
 458                         if ( rc ) {
 459                                 snprintf( text->bv_val, text->bv_len,
 460                                         "dummy id2entry add failed: %s (%d)",
 461                                         mdb_strerror(rc), rc );
 462                                 Debug( LDAP_DEBUG_ANY,
 463                                         "=> mdb_tool_next_id: %s\n", text->bv_val, 0, 0 );
 464                         }
 465                 }
 466         } else if ( !hole ) {
 467                 unsigned i, j;
 468
 469                 e->e_id = id;
 470
 471                 for ( i=0; i<nholes; i++) {
 472                         if ( holes[i].id == e->e_id ) {
 473                                 free(holes[i].dn.bv_val);
 474                                 for (j=i;j<nholes;j++) holes[j] = holes[j+1];
 475                                 holes[j].id = 0;
 476                                 nholes--;
 477                                 break;
 478                         } else if ( holes[i].id > e->e_id ) {
 479                                 break;
 480                         }
 481                 }
 482         }
 483         return rc;
 484 }
 485
 486 static int
 487 mdb_tool_index_add(
 488         Operation *op,
 489         MDB_txn *txn,
 490         Entry *e )
 491 {
 492         struct mdb_info *mdb = (struct mdb_info *) op->o_bd->be_private;
 493
 494         if ( !mdb->mi_nattrs )
 495                 return 0;
 496
 497         if ( mdb_tool_threads > 1 ) {
 498                 IndexRec *ir;
 499                 int i, rc;
 500                 Attribute *a;
 501
 502                 ir = mdb_tool_index_rec;
 503                 for (i=0; i<mdb->mi_nattrs; i++)
 504                         ir[i].ir_attrs = NULL;
 505
 506                 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 507                         rc = mdb_index_recset( mdb, a, a->a_desc->ad_type,
 508                                 &a->a_desc->ad_tags, ir );
 509                         if ( rc )
 510                                 return rc;
 511                 }
 512                 for (i=0; i<mdb->mi_nattrs; i++) {
 513                         if ( !ir[i].ir_ai )
 514                                 break;
 515                         rc = mdb_cursor_open( txn, ir[i].ir_ai->ai_dbi,
 516                                  &ir[i].ir_ai->ai_cursor );
 517                         if ( rc )
 518                                 return rc;
 519                 }
 520                 mdb_tool_ix_id = e->e_id;
 521                 mdb_tool_ix_op = op;
 522                 mdb_tool_ix_txn = txn;
 523                 ldap_pvt_thread_mutex_lock( &mdb_tool_index_mutex );
 524                 /* Wait for all threads to be ready */
 525                 while ( mdb_tool_index_tcount ) {
 526                         ldap_pvt_thread_cond_wait( &mdb_tool_index_cond_main,
 527                                 &mdb_tool_index_mutex );
 528                 }
 529
 530                 for ( i=1; i<mdb_tool_threads; i++ )
 531                         mdb_tool_index_rec[i].ir_i = LDAP_BUSY;
 532                 mdb_tool_index_tcount = mdb_tool_threads - 1;
 533                 ldap_pvt_thread_mutex_unlock( &mdb_tool_index_mutex );
 534                 ldap_pvt_thread_cond_broadcast( &mdb_tool_index_cond_work );
 535
 536                 rc = mdb_index_recrun( op, txn, mdb, ir, e->e_id, 0 );
 537                 if ( rc )
 538                         return rc;
 539                 ldap_pvt_thread_mutex_lock( &mdb_tool_index_mutex );
 540                 for ( i=1; i<mdb_tool_threads; i++ ) {
 541                         if ( mdb_tool_index_rec[i].ir_i == LDAP_BUSY ) {
 542                                 ldap_pvt_thread_cond_wait( &mdb_tool_index_cond_main,
 543                                         &mdb_tool_index_mutex );
 544                                 i--;
 545                                 continue;
 546                         }
 547                         if ( mdb_tool_index_rec[i].ir_i ) {
 548                                 rc = mdb_tool_index_rec[i].ir_i;
 549                                 break;
 550                         }
 551                 }
 552                 ldap_pvt_thread_mutex_unlock( &mdb_tool_index_mutex );
 553                 return rc;
 554         } else
 555         {
 556                 return mdb_index_entry_add( op, txn, e );
 557         }
 558 }
 559
 560 ID mdb_tool_entry_put(
 561         BackendDB *be,
 562         Entry *e,
 563         struct berval *text )
 564 {
 565         int rc;
 566         struct mdb_info *mdb;
 567         Operation op = {0};
 568         Opheader ohdr = {0};
 569
 570         assert( be != NULL );
 571         assert( slapMode & SLAP_TOOL_MODE );
 572
 573         assert( text != NULL );
 574         assert( text->bv_val != NULL );
 575         assert( text->bv_val[0] == '\0' );      /* overconservative? */
 576
 577         Debug( LDAP_DEBUG_TRACE, "=> " LDAP_XSTRING(mdb_tool_entry_put)
 578                 "( %ld, \"%s\" )\n", (long) e->e_id, e->e_dn, 0 );
 579
 580         mdb = (struct mdb_info *) be->be_private;
 581
 582         if ( !txn ) {
 583                 rc = mdb_txn_begin( mdb->mi_dbenv, NULL, 0, &txn );
 584                 if( rc != 0 ) {
 585                         snprintf( text->bv_val, text->bv_len,
 586                                 "txn_begin failed: %s (%d)",
 587                                 mdb_strerror(rc), rc );
 588                         Debug( LDAP_DEBUG_ANY,
 589                                 "=> " LDAP_XSTRING(mdb_tool_entry_put) ": %s\n",
 590                                  text->bv_val, 0, 0 );
 591                         return NOID;
 592                 }
 593                 rc = mdb_cursor_open( txn, mdb->mi_id2entry, &idcursor );
 594                 if( rc != 0 ) {
 595                         snprintf( text->bv_val, text->bv_len,
 596                                 "cursor_open failed: %s (%d)",
 597                                 mdb_strerror(rc), rc );
 598                         Debug( LDAP_DEBUG_ANY,
 599                                 "=> " LDAP_XSTRING(mdb_tool_entry_put) ": %s\n",
 600                                  text->bv_val, 0, 0 );
 601                         return NOID;
 602                 }
 603                 rc = mdb_cursor_open( txn, mdb->mi_dn2id, &mcp );
 604                 if( rc != 0 ) {
 605                         snprintf( text->bv_val, text->bv_len,
 606                                 "cursor_open failed: %s (%d)",
 607                                 mdb_strerror(rc), rc );
 608                         Debug( LDAP_DEBUG_ANY,
 609                                 "=> " LDAP_XSTRING(mdb_tool_entry_put) ": %s\n",
 610                                  text->bv_val, 0, 0 );
 611                         return NOID;
 612                 }
 613                 rc = mdb_cursor_open( txn, mdb->mi_dn2id, &mcd );
 614                 if( rc != 0 ) {
 615                         snprintf( text->bv_val, text->bv_len,
 616                                 "cursor_open failed: %s (%d)",
 617                                 mdb_strerror(rc), rc );
 618                         Debug( LDAP_DEBUG_ANY,
 619                                 "=> " LDAP_XSTRING(mdb_tool_entry_put) ": %s\n",
 620                                  text->bv_val, 0, 0 );
 621                         return NOID;
 622                 }
 623         }
 624
 625         op.o_hdr = &ohdr;
 626         op.o_bd = be;
 627         op.o_tmpmemctx = NULL;
 628         op.o_tmpmfuncs = &ch_mfuncs;
 629
 630         /* add dn2id indices */
 631         rc = mdb_tool_next_id( &op, txn, e, text, 0 );
 632         if( rc != 0 ) {
 633                 goto done;
 634         }
 635
 636         rc = mdb_tool_index_add( &op, txn, e );
 637         if( rc != 0 ) {
 638                 snprintf( text->bv_val, text->bv_len,
 639                                 "index_entry_add failed: err=%d", rc );
 640                 Debug( LDAP_DEBUG_ANY,
 641                         "=> " LDAP_XSTRING(mdb_tool_entry_put) ": %s\n",
 642                         text->bv_val, 0, 0 );
 643                 goto done;
 644         }
 645
 646
 647         /* id2entry index */
 648         rc = mdb_id2entry_add( &op, txn, idcursor, e );
 649         if( rc != 0 ) {
 650                 snprintf( text->bv_val, text->bv_len,
 651                                 "id2entry_add failed: err=%d", rc );
 652                 Debug( LDAP_DEBUG_ANY,
 653                         "=> " LDAP_XSTRING(mdb_tool_entry_put) ": %s\n",
 654                         text->bv_val, 0, 0 );
 655                 goto done;
 656         }
 657
 658 done:
 659         if( rc == 0 ) {
 660                 mdb_writes++;
 661                 if ( mdb_writes >= mdb_writes_per_commit ) {
 662                         unsigned i;
 663                         MDB_TOOL_IDL_FLUSH( be, txn );
 664                         rc = mdb_txn_commit( txn );
 665                         for ( i=0; i<mdb->mi_nattrs; i++ )
 666                                 mdb->mi_attrs[i]->ai_cursor = NULL;
 667                         mdb_writes = 0;
 668                         txn = NULL;
 669                         idcursor = NULL;
 670                         if( rc != 0 ) {
 671                                 snprintf( text->bv_val, text->bv_len,
 672                                                 "txn_commit failed: %s (%d)",
 673                                                 mdb_strerror(rc), rc );
 674                                 Debug( LDAP_DEBUG_ANY,
 675                                         "=> " LDAP_XSTRING(mdb_tool_entry_put) ": %s\n",
 676                                         text->bv_val, 0, 0 );
 677                                 e->e_id = NOID;
 678                         }
 679                 }
 680
 681         } else {
 682                 mdb_txn_abort( txn );
 683                 txn = NULL;
 684                 cursor = NULL;
 685                 snprintf( text->bv_val, text->bv_len,
 686                         "txn_aborted! %s (%d)",
 687                         rc == LDAP_OTHER ? "Internal error" :
 688                         mdb_strerror(rc), rc );
 689                 Debug( LDAP_DEBUG_ANY,
 690                         "=> " LDAP_XSTRING(mdb_tool_entry_put) ": %s\n",
 691                         text->bv_val, 0, 0 );
 692                 e->e_id = NOID;
 693         }
 694
 695         return e->e_id;
 696 }
 697
 698 int mdb_tool_entry_reindex(
 699         BackendDB *be,
 700         ID id,
 701         AttributeDescription **adv )
 702 {
 703         struct mdb_info *mi = (struct mdb_info *) be->be_private;
 704         int rc;
 705         Entry *e;
 706         Operation op = {0};
 707         Opheader ohdr = {0};
 708
 709         Debug( LDAP_DEBUG_ARGS,
 710                 "=> " LDAP_XSTRING(mdb_tool_entry_reindex) "( %ld )\n",
 711                 (long) id, 0, 0 );
 712         assert( tool_base == NULL );
 713         assert( tool_filter == NULL );
 714
 715         /* No indexes configured, nothing to do. Could return an
 716          * error here to shortcut things.
 717          */
 718         if (!mi->mi_attrs) {
 719                 return 0;
 720         }
 721
 722         /* Check for explicit list of attrs to index */
 723         if ( adv ) {
 724                 int i, j, n;
 725
 726                 if ( mi->mi_attrs[0]->ai_desc != adv[0] ) {
 727                         /* count */
 728                         for ( n = 0; adv[n]; n++ ) ;
 729
 730                         /* insertion sort */
 731                         for ( i = 0; i < n; i++ ) {
 732                                 AttributeDescription *ad = adv[i];
 733                                 for ( j = i-1; j>=0; j--) {
 734                                         if ( SLAP_PTRCMP( adv[j], ad ) <= 0 ) break;
 735                                         adv[j+1] = adv[j];
 736                                 }
 737                                 adv[j+1] = ad;
 738                         }
 739                 }
 740
 741                 for ( i = 0; adv[i]; i++ ) {
 742                         if ( mi->mi_attrs[i]->ai_desc != adv[i] ) {
 743                                 for ( j = i+1; j < mi->mi_nattrs; j++ ) {
 744                                         if ( mi->mi_attrs[j]->ai_desc == adv[i] ) {
 745                                                 AttrInfo *ai = mi->mi_attrs[i];
 746                                                 mi->mi_attrs[i] = mi->mi_attrs[j];
 747                                                 mi->mi_attrs[j] = ai;
 748                                                 break;
 749                                         }
 750                                 }
 751                                 if ( j == mi->mi_nattrs ) {
 752                                         Debug( LDAP_DEBUG_ANY,
 753                                                 LDAP_XSTRING(mdb_tool_entry_reindex)
 754                                                 ": no index configured for %s\n",
 755                                                 adv[i]->ad_cname.bv_val, 0, 0 );
 756                                         return -1;
 757                                 }
 758                         }
 759                 }
 760                 mi->mi_nattrs = i;
 761         }
 762
 763         if ( slapMode & SLAP_TRUNCATE_MODE ) {
 764                 int i;
 765                 for ( i=0; i < mi->mi_nattrs; i++ ) {
 766                         rc = mdb_drop( txn, mi->mi_attrs[i]->ai_dbi, 0 );
 767                         if ( rc ) {
 768                                 Debug( LDAP_DEBUG_ANY,
 769                                         LDAP_XSTRING(mdb_tool_entry_reindex)
 770                                         ": (Truncate) mdb_drop(%s) failed: %s (%d)\n",
 771                                         mi->mi_attrs[i]->ai_desc->ad_type->sat_cname.bv_val,
 772                                         mdb_strerror(rc), rc );
 773                                 return -1;
 774                         }
 775                 }
 776                 slapMode ^= SLAP_TRUNCATE_MODE;
 777         }
 778
 779         e = mdb_tool_entry_get( be, id );
 780
 781         if( e == NULL ) {
 782                 Debug( LDAP_DEBUG_ANY,
 783                         LDAP_XSTRING(mdb_tool_entry_reindex)
 784                         ": could not locate id=%ld\n",
 785                         (long) id, 0, 0 );
 786                 return -1;
 787         }
 788
 789         if ( !txi ) {
 790                 rc = mdb_txn_begin( mi->mi_dbenv, NULL, 0, &txi );
 791                 if( rc != 0 ) {
 792                         Debug( LDAP_DEBUG_ANY,
 793                                 "=> " LDAP_XSTRING(mdb_tool_entry_reindex) ": "
 794                                 "txn_begin failed: %s (%d)\n",
 795                                 mdb_strerror(rc), rc, 0 );
 796                         goto done;
 797                 }
 798         }
 799
 800         /*
 801          * just (re)add them for now
 802          * assume that some other routine (not yet implemented)
 803          * will zap index databases
 804          *
 805          */
 806
 807         Debug( LDAP_DEBUG_TRACE,
 808                 "=> " LDAP_XSTRING(mdb_tool_entry_reindex) "( %ld )\n",
 809                 (long) id, 0, 0 );
 810
 811         op.o_hdr = &ohdr;
 812         op.o_bd = be;
 813         op.o_tmpmemctx = NULL;
 814         op.o_tmpmfuncs = &ch_mfuncs;
 815
 816         rc = mdb_tool_index_add( &op, txi, e );
 817
 818 done:
 819         if( rc == 0 ) {
 820                 mdb_writes++;
 821                 if ( mdb_writes >= mdb_writes_per_commit ) {
 822                         unsigned i;
 823                         MDB_TOOL_IDL_FLUSH( be, txi );
 824                         rc = mdb_txn_commit( txi );
 825                         for ( i=0; i<mi->mi_nattrs; i++ )
 826                                 mi->mi_attrs[i]->ai_cursor = NULL;
 827                         if( rc != 0 ) {
 828                                 Debug( LDAP_DEBUG_ANY,
 829                                         "=> " LDAP_XSTRING(mdb_tool_entry_reindex)
 830                                         ": txn_commit failed: %s (%d)\n",
 831                                         mdb_strerror(rc), rc, 0 );
 832                                 e->e_id = NOID;
 833                         }
 834                         txi = NULL;
 835                 }
 836
 837         } else {
 838                 mdb_txn_abort( txi );
 839                 Debug( LDAP_DEBUG_ANY,
 840                         "=> " LDAP_XSTRING(mdb_tool_entry_reindex)
 841                         ": txn_aborted! err=%d\n",
 842                         rc, 0, 0 );
 843                 e->e_id = NOID;
 844                 txi = NULL;
 845         }
 846         mdb_entry_release( &op, e, 0 );
 847
 848         return rc;
 849 }
 850
 851 ID mdb_tool_entry_modify(
 852         BackendDB *be,
 853         Entry *e,
 854         struct berval *text )
 855 {
 856         int rc;
 857         struct mdb_info *mdb;
 858         MDB_txn *tid;
 859         Operation op = {0};
 860         Opheader ohdr = {0};
 861
 862         assert( be != NULL );
 863         assert( slapMode & SLAP_TOOL_MODE );
 864
 865         assert( text != NULL );
 866         assert( text->bv_val != NULL );
 867         assert( text->bv_val[0] == '\0' );      /* overconservative? */
 868
 869         assert ( e->e_id != NOID );
 870
 871         Debug( LDAP_DEBUG_TRACE,
 872                 "=> " LDAP_XSTRING(mdb_tool_entry_modify) "( %ld, \"%s\" )\n",
 873                 (long) e->e_id, e->e_dn, 0 );
 874
 875         mdb = (struct mdb_info *) be->be_private;
 876
 877         if( cursor ) {
 878                 mdb_cursor_close( cursor );
 879                 cursor = NULL;
 880         }
 881         rc = mdb_txn_begin( mdb->mi_dbenv, NULL, 0, &tid );
 882         if( rc != 0 ) {
 883                 snprintf( text->bv_val, text->bv_len,
 884                         "txn_begin failed: %s (%d)",
 885                         mdb_strerror(rc), rc );
 886                 Debug( LDAP_DEBUG_ANY,
 887                         "=> " LDAP_XSTRING(mdb_tool_entry_modify) ": %s\n",
 888                          text->bv_val, 0, 0 );
 889                 return NOID;
 890         }
 891
 892         op.o_hdr = &ohdr;
 893         op.o_bd = be;
 894         op.o_tmpmemctx = NULL;
 895         op.o_tmpmfuncs = &ch_mfuncs;
 896
 897         /* id2entry index */
 898         rc = mdb_id2entry_update( &op, tid, NULL, e );
 899         if( rc != 0 ) {
 900                 snprintf( text->bv_val, text->bv_len,
 901                                 "id2entry_update failed: err=%d", rc );
 902                 Debug( LDAP_DEBUG_ANY,
 903                         "=> " LDAP_XSTRING(mdb_tool_entry_modify) ": %s\n",
 904                         text->bv_val, 0, 0 );
 905                 goto done;
 906         }
 907
 908 done:
 909         if( rc == 0 ) {
 910                 rc = mdb_txn_commit( tid );
 911                 if( rc != 0 ) {
 912                         snprintf( text->bv_val, text->bv_len,
 913                                         "txn_commit failed: %s (%d)",
 914                                         mdb_strerror(rc), rc );
 915                         Debug( LDAP_DEBUG_ANY,
 916                                 "=> " LDAP_XSTRING(mdb_tool_entry_modify) ": "
 917                                 "%s\n", text->bv_val, 0, 0 );
 918                         e->e_id = NOID;
 919                 }
 920
 921         } else {
 922                 mdb_txn_abort( tid );
 923                 snprintf( text->bv_val, text->bv_len,
 924                         "txn_aborted! %s (%d)",
 925                         mdb_strerror(rc), rc );
 926                 Debug( LDAP_DEBUG_ANY,
 927                         "=> " LDAP_XSTRING(mdb_tool_entry_modify) ": %s\n",
 928                         text->bv_val, 0, 0 );
 929                 e->e_id = NOID;
 930         }
 931
 932         return e->e_id;
 933 }
 934
 935 static void *
 936 mdb_tool_index_task( void *ctx, void *ptr )
 937 {
 938         int base = *(int *)ptr;
 939
 940         free( ptr );
 941         while ( 1 ) {
 942                 ldap_pvt_thread_mutex_lock( &mdb_tool_index_mutex );
 943                 mdb_tool_index_tcount--;
 944                 if ( !mdb_tool_index_tcount )
 945                         ldap_pvt_thread_cond_signal( &mdb_tool_index_cond_main );
 946                 ldap_pvt_thread_cond_wait( &mdb_tool_index_cond_work,
 947                         &mdb_tool_index_mutex );
 948                 if ( slapd_shutdown ) {
 949                         mdb_tool_index_tcount--;
 950                         if ( !mdb_tool_index_tcount )
 951                                 ldap_pvt_thread_cond_signal( &mdb_tool_index_cond_main );
 952                         ldap_pvt_thread_mutex_unlock( &mdb_tool_index_mutex );
 953                         break;
 954                 }
 955                 ldap_pvt_thread_mutex_unlock( &mdb_tool_index_mutex );
 956                 mdb_tool_index_rec[base].ir_i = mdb_index_recrun( mdb_tool_ix_op,
 957                         mdb_tool_ix_txn,
 958                         mdb_tool_info, mdb_tool_index_rec, mdb_tool_ix_id, base );
 959         }
 960
 961         return NULL;
 962 }
 963
 964 #ifdef MDB_TOOL_IDL_CACHING
 965 static int
 966 mdb_tool_idl_cmp( const void *v1, const void *v2 )
 967 {
 968         const mdb_tool_idl_cache *c1 = v1, *c2 = v2;
 969         int rc;
 970
 971         if (( rc = c1->kstr.bv_len - c2->kstr.bv_len )) return rc;
 972         return memcmp( c1->kstr.bv_val, c2->kstr.bv_val, c1->kstr.bv_len );
 973 }
 974
 975 static int
 976 mdb_tool_idl_flush_one( MDB_cursor *mc, AttrInfo *ai, mdb_tool_idl_cache *ic )
 977 {
 978         mdb_tool_idl_cache_entry *ice;
 979         MDB_val key, data[2];
 980         int i, rc;
 981         ID id, nid;
 982
 983         /* Freshly allocated, ignore it */
 984         if ( !ic->head && ic->count <= MDB_IDL_DB_SIZE ) {
 985                 return 0;
 986         }
 987
 988         key.mv_data = ic->kstr.bv_val;
 989         key.mv_size = ic->kstr.bv_len;
 990
 991         if ( ic->count > MDB_IDL_DB_SIZE ) {
 992                 while ( ic->flags & WAS_FOUND ) {
 993                         rc = mdb_cursor_get( mc, &key, data, MDB_SET );
 994                         if ( rc ) {
 995                                 /* FIXME: find out why this happens */
 996                                 ic->flags = 0;
 997                                 break;
 998                         }
 999                         if ( ic->flags & WAS_RANGE ) {
1000                                 /* Skip lo */
1001                                 rc = mdb_cursor_get( mc, &key, data, MDB_NEXT_DUP );
1002
1003                                 /* Get hi */
1004                                 rc = mdb_cursor_get( mc, &key, data, MDB_NEXT_DUP );
1005
1006                                 /* Store range hi */
1007                                 data[0].mv_data = &ic->last;
1008                                 rc = mdb_cursor_put( mc, &key, data, MDB_CURRENT );
1009                         } else {
1010                                 /* Delete old data, replace with range */
1011                                 ic->first = *(ID *)data[0].mv_data;
1012                                 mdb_cursor_del( mc, MDB_NODUPDATA );
1013                         }
1014                         break;
1015                 }
1016                 if ( !(ic->flags & WAS_RANGE)) {
1017                         /* range, didn't exist before */
1018                         nid = 0;
1019                         data[0].mv_size = sizeof(ID);
1020                         data[0].mv_data = &nid;
1021                         rc = mdb_cursor_put( mc, &key, data, 0 );
1022                         if ( rc == 0 ) {
1023                                 data[0].mv_data = &ic->first;
1024                                 rc = mdb_cursor_put( mc, &key, data, 0 );
1025                                 if ( rc == 0 ) {
1026                                         data[0].mv_data = &ic->last;
1027                                         rc = mdb_cursor_put( mc, &key, data, 0 );
1028                                 }
1029                         }
1030                         if ( rc ) {
1031                                 rc = -1;
1032                         }
1033                 }
1034         } else {
1035                 /* Normal write */
1036                 int n;
1037
1038                 data[0].mv_size = sizeof(ID);
1039                 rc = 0;
1040                 i = ic->offset;
1041                 for ( ice = ic->head, n=0; ice; ice = ice->next, n++ ) {
1042                         int end;
1043                         if ( ice->next ) {
1044                                 end = IDBLOCK;
1045                         } else {
1046                                 end = ic->count & (IDBLOCK-1);
1047                                 if ( !end )
1048                                         end = IDBLOCK;
1049                         }
1050                         data[1].mv_size = end - i;
1051                         data[0].mv_data = &ice->ids[i];
1052                         i = 0;
1053                         rc = mdb_cursor_put( mc, &key, data, MDB_NODUPDATA|MDB_APPEND|MDB_MULTIPLE );
1054                         if ( rc ) {
1055                                 if ( rc == MDB_KEYEXIST ) {
1056                                         rc = 0;
1057                                         continue;
1058                                 }
1059                                 rc = -1;
1060                                 break;
1061                         }
1062                 }
1063                 if ( ic->head ) {
1064                         ic->tail->next = ai->ai_flist;
1065                         ai->ai_flist = ic->head;
1066                 }
1067         }
1068         ic->head = ai->ai_clist;
1069         ai->ai_clist = ic;
1070         return rc;
1071 }
1072
1073 static int
1074 mdb_tool_idl_flush_db( MDB_txn *txn, AttrInfo *ai )
1075 {
1076         MDB_cursor *mc;
1077         Avlnode *root;
1078         int rc;
1079
1080         mdb_cursor_open( txn, ai->ai_dbi, &mc );
1081         root = tavl_end( ai->ai_root, TAVL_DIR_LEFT );
1082         do {
1083                 rc = mdb_tool_idl_flush_one( mc, ai, root->avl_data );
1084                 if ( rc != -1 )
1085                         rc = 0;
1086         } while ((root = tavl_next(root, TAVL_DIR_RIGHT)));
1087         mdb_cursor_close( mc );
1088
1089         return rc;
1090 }
1091
1092 static int
1093 mdb_tool_idl_flush( BackendDB *be, MDB_txn *txn )
1094 {
1095         struct mdb_info *mdb = (struct mdb_info *) be->be_private;
1096         int rc = 0;
1097         unsigned int i, dbi;
1098
1099         for ( i=0; i < mdb->mi_nattrs; i++ ) {
1100                 if ( !mdb->mi_attrs[i]->ai_root ) continue;
1101                 rc = mdb_tool_idl_flush_db( txn, mdb->mi_attrs[i] );
1102                 tavl_free(mdb->mi_attrs[i]->ai_root, NULL);
1103                 mdb->mi_attrs[i]->ai_root = NULL;
1104                 if ( rc )
1105                         break;
1106         }
1107         return rc;
1108 }
1109
1110 int mdb_tool_idl_add(
1111         MDB_cursor *mc,
1112         struct berval *keys,
1113         ID id )
1114 {
1115         MDB_dbi dbi;
1116         mdb_tool_idl_cache *ic, itmp;
1117         mdb_tool_idl_cache_entry *ice;
1118         int i, rc, lcount;
1119         AttrInfo *ai = (AttrInfo *)mc;
1120         mc = ai->ai_cursor;
1121
1122         dbi = ai->ai_dbi;
1123         for (i=0; keys[i].bv_val; i++) {
1124         itmp.kstr = keys[i];
1125         ic = tavl_find( (Avlnode *)ai->ai_root, &itmp, mdb_tool_idl_cmp );
1126
1127         /* No entry yet, create one */
1128         if ( !ic ) {
1129                 MDB_val key, data;
1130                 ID nid;
1131                 int rc;
1132
1133                 if ( ai->ai_clist ) {
1134                         ic = ai->ai_clist;
1135                         ai->ai_clist = ic->head;
1136                 } else {
1137                         ic = ch_malloc( sizeof( mdb_tool_idl_cache ) + itmp.kstr.bv_len + 4 );
1138                 }
1139                 ic->kstr.bv_len = itmp.kstr.bv_len;
1140                 ic->kstr.bv_val = (char *)(ic+1);
1141                 memcpy( ic->kstr.bv_val, itmp.kstr.bv_val, ic->kstr.bv_len );
1142                 ic->head = ic->tail = NULL;
1143                 ic->last = 0;
1144                 ic->count = 0;
1145                 ic->offset = 0;
1146                 ic->flags = 0;
1147                 tavl_insert( (Avlnode **)&ai->ai_root, ic, mdb_tool_idl_cmp,
1148                         avl_dup_error );
1149
1150                 /* load existing key count here */
1151                 key.mv_size = keys[i].bv_len;
1152                 key.mv_data = keys[i].bv_val;
1153                 rc = mdb_cursor_get( mc, &key, &data, MDB_SET );
1154                 if ( rc == 0 ) {
1155                         ic->flags |= WAS_FOUND;
1156                         nid = *(ID *)data.mv_data;
1157                         if ( nid == 0 ) {
1158                                 ic->count = MDB_IDL_DB_SIZE+1;
1159                                 ic->flags |= WAS_RANGE;
1160                         } else {
1161                                 size_t count;
1162
1163                                 mdb_cursor_count( mc, &count );
1164                                 ic->count = count;
1165                                 ic->first = nid;
1166                                 ic->offset = count & (IDBLOCK-1);
1167                         }
1168                 }
1169         }
1170         /* are we a range already? */
1171         if ( ic->count > MDB_IDL_DB_SIZE ) {
1172                 ic->last = id;
1173                 continue;
1174         /* Are we at the limit, and converting to a range? */
1175         } else if ( ic->count == MDB_IDL_DB_SIZE ) {
1176                 if ( ic->head ) {
1177                         ic->tail->next = ai->ai_flist;
1178                         ai->ai_flist = ic->head;
1179                 }
1180                 ic->head = ic->tail = NULL;
1181                 ic->last = id;
1182                 ic->count++;
1183                 continue;
1184         }
1185         /* No free block, create that too */
1186         lcount = ic->count & (IDBLOCK-1);
1187         if ( !ic->tail || lcount == 0) {
1188                 if ( ai->ai_flist ) {
1189                         ice = ai->ai_flist;
1190                         ai->ai_flist = ice->next;
1191                 } else {
1192                         ice = ch_malloc( sizeof( mdb_tool_idl_cache_entry ));
1193                 }
1194                 ice->next = NULL;
1195                 if ( !ic->head ) {
1196                         ic->head = ice;
1197                 } else {
1198                         ic->tail->next = ice;
1199                 }
1200                 ic->tail = ice;
1201                 if ( lcount )
1202                         ice->ids[lcount-1] = 0;
1203                 if ( !ic->count )
1204                         ic->first = id;
1205         }
1206         ice = ic->tail;
1207         if (!lcount || ice->ids[lcount-1] != id)
1208                 ice->ids[lcount] = id;
1209         ic->count++;
1210         }
1211
1212         return 0;
1213 }
1214 #endif /* MDB_TOOL_IDL_CACHING */