index/zebraapi.c

   1 /* This file is part of the Zebra server.
   2    Copyright (C) 1994-2011 Index Data
   3
   4 Zebra is free software; you can redistribute it and/or modify it under
   5 the terms of the GNU General Public License as published by the Free
   6 Software Foundation; either version 2, or (at your option) any later
   7 version.
   8
   9 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
  10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12 for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program; if not, write to the Free Software
  16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17
  18 */
  19
  20 #if HAVE_CONFIG_H
  21 #include <config.h>
  22 #endif
  23 #include <assert.h>
  24 #include <stdio.h>
  25 #include <limits.h>
  26 #ifdef WIN32
  27 #include <io.h>
  28 #include <process.h>
  29 #include <direct.h>
  30 #endif
  31 #if HAVE_UNISTD_H
  32 #include <unistd.h>
  33 #endif
  34
  35 #include <yaz/diagbib1.h>
  36 #include <yaz/pquery.h>
  37 #include <yaz/sortspec.h>
  38 #include "index.h"
  39 #include "rank.h"
  40 #include "orddict.h"
  41 #include <charmap.h>
  42 #include <idzebra/api.h>
  43 #include <yaz/oid_db.h>
  44
  45 #define DEFAULT_APPROX_LIMIT 2000000000
  46
  47 /* simple asserts to validate the most essential input args */
  48 #define ASSERTZH assert(zh && zh->service)
  49 #define ASSERTZHRES assert(zh && zh->service && zh->res)
  50 #define ASSERTZS assert(zs)
  51
  52 static int log_level = 0;
  53 static int log_level_initialized = 0;
  54
  55 static void zebra_open_res(ZebraHandle zh);
  56 static void zebra_close_res(ZebraHandle zh);
  57
  58 static ZEBRA_RES zebra_check_handle(ZebraHandle zh)
  59 {
  60     if (zh)
  61         return ZEBRA_OK;
  62     return ZEBRA_FAIL;
  63 }
  64
  65 #define ZEBRA_CHECK_HANDLE(zh) if (zebra_check_handle(zh) != ZEBRA_OK) return ZEBRA_FAIL
  66
  67 static int zebra_chdir(ZebraService zs)
  68 {
  69     const char *dir ;
  70     int r;
  71     ASSERTZS;
  72     yaz_log(log_level, "zebra_chdir");
  73     dir = res_get(zs->global_res, "chdir");
  74     if (!dir)
  75         return 0;
  76     yaz_log(YLOG_DEBUG, "chdir %s", dir);
  77 #ifdef WIN32
  78     r = _chdir(dir);
  79 #else
  80     r = chdir(dir);
  81 #endif
  82     if (r)
  83         yaz_log(YLOG_FATAL|YLOG_ERRNO, "chdir %s", dir);
  84     return r;
  85 }
  86
  87 static ZEBRA_RES zebra_flush_reg(ZebraHandle zh)
  88 {
  89     ZEBRA_CHECK_HANDLE(zh);
  90     yaz_log(log_level, "zebra_flush_reg");
  91     zebraExplain_flush(zh->reg->zei, zh);
  92
  93     key_block_flush(zh->reg->key_block, 1);
  94
  95     zebra_index_merge(zh);
  96     return ZEBRA_OK;
  97 }
  98
  99 static struct zebra_register *zebra_register_open(ZebraService zs,
 100                                                   const char *name,
 101                                                   int rw, int useshadow,
 102                                                   Res res,
 103                                                   const char *reg_path);
 104 static void zebra_register_close(ZebraService zs, struct zebra_register *reg);
 105
 106 const char *zebra_get_encoding(ZebraHandle zh)
 107 {
 108     assert(zh && zh->session_res);
 109     return res_get_def(zh->session_res, "encoding", "ISO-8859-1");
 110 }
 111
 112 ZebraHandle zebra_open(ZebraService zs, Res res)
 113 {
 114     ZebraHandle zh;
 115     const char *default_encoding;
 116     if (!log_level_initialized)
 117     {
 118         log_level = yaz_log_module_level("zebraapi");
 119         log_level_initialized = 1;
 120     }
 121
 122     yaz_log(log_level, "zebra_open");
 123
 124     if (!zs)
 125         return 0;
 126
 127     zh = (ZebraHandle) xmalloc(sizeof(*zh));
 128     yaz_log(YLOG_DEBUG, "zebra_open zs=%p returns %p", zs, zh);
 129
 130     zh->service = zs;
 131     zh->reg = 0;          /* no register attached yet */
 132     zh->sets = 0;
 133     zh->destroyed = 0;
 134     zh->errCode = 0;
 135     zh->errString = 0;
 136     zh->res = 0;
 137     zh->session_res = res_open(zs->global_res, res);
 138     zh->user_perm = 0;
 139     zh->dbaccesslist = 0;
 140
 141     zh->reg_name = xstrdup("");
 142     zh->path_reg = 0;
 143     zh->num_basenames = 0;
 144     zh->basenames = 0;
 145
 146     zh->approx_limit = DEFAULT_APPROX_LIMIT;
 147     zh->trans_no = 0;
 148     zh->trans_w_no = 0;
 149
 150     zh->lock_normal = 0;
 151     zh->lock_shadow = 0;
 152
 153     zh->shadow_enable = 1;
 154     zh->m_staticrank = 0;
 155     zh->m_segment_indexing = 0;
 156
 157     zh->break_handler_func = 0;
 158     zh->break_handler_data = 0;
 159
 160     default_encoding = zebra_get_encoding(zh);
 161
 162     zh->iconv_to_utf8 =
 163         yaz_iconv_open("UTF-8", default_encoding);
 164     if (zh->iconv_to_utf8 == 0)
 165         yaz_log(YLOG_WARN, "iconv: %s to UTF-8 unsupported",
 166                 default_encoding);
 167     zh->iconv_from_utf8 =
 168         yaz_iconv_open(default_encoding, "UTF-8");
 169     if (zh->iconv_to_utf8 == 0)
 170         yaz_log(YLOG_WARN, "iconv: UTF-8 to %s unsupported",
 171                 default_encoding);
 172
 173     zh->record_encoding = 0;
 174
 175     zebra_mutex_cond_lock(&zs->session_lock);
 176
 177     zh->next = zs->sessions;
 178     zs->sessions = zh;
 179
 180     zebra_mutex_cond_unlock(&zs->session_lock);
 181
 182     zh->store_data_buf = 0;
 183
 184     zh->m_limit = zebra_limit_create(1, 0);
 185
 186     zh->nmem_error = nmem_create();
 187
 188     return zh;
 189 }
 190
 191 ZebraService zebra_start(const char *configName)
 192 {
 193     return zebra_start_res(configName, 0, 0);
 194 }
 195
 196 ZebraService zebra_start_res(const char *configName, Res def_res, Res over_res)
 197 {
 198     Res res;
 199     char version_str[16];
 200     char system_str[80];
 201
 202     zebra_flock_init();
 203
 204     if (!log_level_initialized)
 205     {
 206         log_level = yaz_log_module_level("zebraapi");
 207         log_level_initialized = 1;
 208     }
 209
 210     *system_str = '\0';
 211     *version_str = '\0';
 212     zebra_get_version(version_str, system_str);
 213
 214     yaz_log(YLOG_LOG, "zebra_start %s %s", version_str, system_str);
 215     if (configName)
 216         yaz_log(YLOG_LOG, "config %s", configName);
 217
 218     if ((res = res_open(def_res, over_res)))
 219     {
 220         const char *passwd_plain = 0;
 221         const char *passwd_encrypt = 0;
 222         const char *dbaccess = 0;
 223         ZebraService zh = 0;
 224
 225         if (configName)
 226         {
 227             ZEBRA_RES ret = res_read_file(res, configName);
 228             if (ret != ZEBRA_OK)
 229             {
 230                 res_close(res);
 231                 return 0;
 232             }
 233             if (zebra_check_res(res))
 234             {
 235                 yaz_log(YLOG_FATAL, "Configuration error(s) for %s",
 236                         configName);
 237                 return 0;
 238             }
 239         }
 240         else
 241         {
 242             zebra_check_res(res);
 243         }
 244
 245         zh = xmalloc(sizeof(*zh));
 246         zh->global_res = res;
 247         zh->sessions = 0;
 248
 249         if (zebra_chdir(zh))
 250         {
 251             xfree(zh);
 252             return 0;
 253         }
 254
 255         zebra_mutex_cond_init(&zh->session_lock);
 256         passwd_plain = res_get(zh->global_res, "passwd");
 257         passwd_encrypt = res_get(zh->global_res, "passwd.c");
 258         dbaccess = res_get(zh->global_res, "dbaccess");
 259
 260         if (!passwd_plain && !passwd_encrypt)
 261             zh->passwd_db = NULL;
 262         else
 263         {
 264             zh->passwd_db = passwd_db_open();
 265             if (!zh->passwd_db)
 266                 yaz_log(YLOG_WARN|YLOG_ERRNO, "passwd_db_open failed");
 267             else
 268             {
 269                 if (passwd_plain)
 270                     passwd_db_file_plain(zh->passwd_db, passwd_plain);
 271                 if (passwd_encrypt)
 272                     passwd_db_file_crypt(zh->passwd_db, passwd_encrypt);
 273             }
 274         }
 275
 276         if (!dbaccess)
 277             zh->dbaccess = NULL;
 278         else {
 279             zh->dbaccess = res_open(NULL, NULL);
 280             if (res_read_file(zh->dbaccess, dbaccess) != ZEBRA_OK) {
 281                 yaz_log(YLOG_FATAL, "Failed to read %s", dbaccess);
 282                 return NULL;
 283             }
 284         }
 285
 286         zh->timing = yaz_timing_create();
 287         zh->path_root = res_get(zh->global_res, "root");
 288         zh->nmem = nmem_create();
 289         zh->record_classes = recTypeClass_create(zh->global_res, zh->nmem);
 290
 291         if (1)
 292         {
 293             const char *module_path = res_get(res, "modulePath");
 294             if (module_path)
 295                 recTypeClass_load_modules(&zh->record_classes, zh->nmem,
 296                                           module_path);
 297         }
 298         return zh;
 299     }
 300     return 0;
 301 }
 302
 303 void zebra_filter_info(ZebraService zs, void *cd,
 304                        void(*cb)(void *cd, const char *name))
 305 {
 306     ASSERTZS;
 307     assert(cb);
 308     recTypeClass_info(zs->record_classes, cd, cb);
 309 }
 310
 311 void zebra_pidfname(ZebraService zs, char *path)
 312 {
 313     ASSERTZS;
 314     zebra_lock_prefix(zs->global_res, path);
 315     strcat(path, "zebrasrv.pid");
 316 }
 317
 318 Dict dict_open_res(BFiles bfs, const char *name, int cache, int rw,
 319                    int compact_flag, Res res)
 320 {
 321     int page_size = 4096;
 322     char resource_str[200];
 323     sprintf(resource_str, "dict.%.100s.pagesize", name);
 324     assert(bfs);
 325     assert(name);
 326
 327     if (res_get_int(res, resource_str, &page_size) == ZEBRA_OK)
 328         yaz_log(YLOG_LOG, "Using custom dictionary page size %d for %s",
 329                 page_size, name);
 330     return dict_open(bfs, name, cache, rw, compact_flag, page_size);
 331 }
 332
 333 static
 334 struct zebra_register *zebra_register_open(ZebraService zs, const char *name,
 335                                            int rw, int useshadow, Res res,
 336                                            const char *reg_path)
 337 {
 338     struct zebra_register *reg;
 339     int record_compression = REC_COMPRESS_NONE;
 340     const char *compression_str = 0;
 341     const char *profilePath;
 342     int sort_type = ZEBRA_SORT_TYPE_FLAT;
 343     ZEBRA_RES ret = ZEBRA_OK;
 344
 345     ASSERTZS;
 346
 347     reg = xmalloc(sizeof(*reg));
 348
 349     assert(name);
 350     reg->name = xstrdup(name);
 351
 352     reg->seqno = 0;
 353     reg->last_val = 0;
 354
 355     assert(res);
 356
 357     yaz_log(YLOG_DEBUG, "zebra_register_open rw=%d useshadow=%d p=%p n=%s rp=%s",
 358             rw, useshadow, reg, name, reg_path ? reg_path : "(none)");
 359
 360     reg->dh = data1_create();
 361     if (!reg->dh)
 362     {
 363         xfree(reg->name);
 364         xfree(reg);
 365         return 0;
 366     }
 367     reg->bfs = bfs_create(res_get(res, "register"), reg_path);
 368     if (!reg->bfs)
 369     {
 370         data1_destroy(reg->dh);
 371         xfree(reg->name);
 372         xfree(reg);
 373         return 0;
 374     }
 375     if (useshadow)
 376     {
 377         if (bf_cache(reg->bfs, res_get(res, "shadow")) == ZEBRA_FAIL)
 378         {
 379             bfs_destroy(reg->bfs);
 380             data1_destroy(reg->dh);
 381             xfree(reg->name);
 382             xfree(reg);
 383             return 0;
 384         }
 385     }
 386
 387     profilePath = res_get_def(res, "profilePath", 0);
 388
 389     data1_set_tabpath(reg->dh, profilePath);
 390     data1_set_tabroot(reg->dh, reg_path);
 391     reg->recTypes = recTypes_init(zs->record_classes, reg->dh);
 392
 393     reg->zebra_maps =
 394         zebra_maps_open(res, reg_path, profilePath);
 395     if (!reg->zebra_maps)
 396     {
 397         recTypes_destroy(reg->recTypes);
 398         bfs_destroy(reg->bfs);
 399         data1_destroy(reg->dh);
 400         xfree(reg->name);
 401         xfree(reg);
 402         return 0;
 403     }
 404     reg->rank_classes = NULL;
 405
 406     reg->key_block = 0;
 407     reg->keys = zebra_rec_keys_open();
 408
 409     reg->sortKeys = zebra_rec_keys_open();
 410
 411     reg->records = 0;
 412     reg->dict = 0;
 413     reg->sort_index = 0;
 414     reg->isams = 0;
 415     reg->matchDict = 0;
 416     reg->isamc = 0;
 417     reg->isamb = 0;
 418     reg->zei = 0;
 419
 420     /* installing rank classes */
 421     zebraRankInstall(reg, rank_1_class);
 422     zebraRankInstall(reg, rank_2_class);
 423     zebraRankInstall(reg, rank_similarity_class);
 424     zebraRankInstall(reg, rank_static_class);
 425
 426     compression_str = res_get_def(res, "recordCompression", "none");
 427     if (!strcmp(compression_str, "none"))
 428         record_compression = REC_COMPRESS_NONE;
 429     else if (!strcmp(compression_str, "bzip2"))
 430         record_compression = REC_COMPRESS_BZIP2;
 431     else if (!strcmp(compression_str, "zlib"))
 432         record_compression = REC_COMPRESS_ZLIB;
 433     else
 434     {
 435         yaz_log(YLOG_FATAL, "invalid recordCompression: %s", compression_str);
 436         ret = ZEBRA_FAIL;
 437     }
 438
 439     if (!rec_check_compression_method(record_compression))
 440     {
 441         yaz_log(YLOG_FATAL, "unsupported recordCompression: %s",
 442                 compression_str);
 443         ret = ZEBRA_FAIL;
 444     }
 445
 446     {
 447         const char *index_fname = res_get_def(res, "index", "default.idx");
 448         if (index_fname && *index_fname && strcmp(index_fname, "none"))
 449         {
 450             if (zebra_maps_read_file(reg->zebra_maps, index_fname) != ZEBRA_OK)
 451                 ret = ZEBRA_FAIL;
 452         }
 453         else
 454         {
 455             zebra_maps_define_default_sort(reg->zebra_maps);
 456         }
 457     }
 458
 459     if (!(reg->records = rec_open(reg->bfs, rw, record_compression)))
 460     {
 461         yaz_log(YLOG_WARN, "rec_open failed");
 462         ret = ZEBRA_FAIL;
 463     }
 464     if (rw)
 465     {
 466         reg->matchDict = dict_open_res(reg->bfs, GMATCH_DICT, 20, 1, 0, res);
 467     }
 468     if (!(reg->dict = dict_open_res(reg->bfs, FNAME_DICT, 40, rw, 0, res)))
 469     {
 470         yaz_log(YLOG_WARN, "dict_open failed");
 471         ret = ZEBRA_FAIL;
 472     }
 473
 474
 475     if (res_get_match(res, "sortindex", "f", "f"))
 476         sort_type = ZEBRA_SORT_TYPE_FLAT;
 477     else if (res_get_match(res, "sortindex", "i", "f"))
 478         sort_type = ZEBRA_SORT_TYPE_ISAMB;
 479     else if (res_get_match(res, "sortindex", "m", "f"))
 480         sort_type = ZEBRA_SORT_TYPE_MULTI;
 481     else
 482     {
 483         yaz_log(YLOG_WARN, "bad_value for 'sortindex'");
 484         ret = ZEBRA_FAIL;
 485     }
 486
 487
 488     if (!(reg->sort_index = zebra_sort_open(reg->bfs, rw, sort_type)))
 489     {
 490         yaz_log(YLOG_WARN, "zebra_sort_open failed");
 491         ret = ZEBRA_FAIL;
 492     }
 493     if (res_get_match(res, "isam", "s", ISAM_DEFAULT))
 494     {
 495         struct ISAMS_M_s isams_m;
 496         if (!(reg->isams = isams_open(reg->bfs, FNAME_ISAMS, rw,
 497                                       key_isams_m(res, &isams_m))))
 498         {
 499             yaz_log(YLOG_WARN, "isams_open failed");
 500             ret = ZEBRA_FAIL;
 501         }
 502     }
 503     if (res_get_match(res, "isam", "c", ISAM_DEFAULT))
 504     {
 505         struct ISAMC_M_s isamc_m;
 506         if (!(reg->isamc = isamc_open(reg->bfs, FNAME_ISAMC,
 507                                       rw, key_isamc_m(res, &isamc_m))))
 508         {
 509             yaz_log(YLOG_WARN, "isamc_open failed");
 510             ret = ZEBRA_FAIL;
 511         }
 512     }
 513     if (res_get_match(res, "isam", "b", ISAM_DEFAULT))
 514     {
 515         struct ISAMC_M_s isamc_m;
 516
 517         if (!(reg->isamb = isamb_open(reg->bfs, "isamb",
 518                                       rw, key_isamc_m(res, &isamc_m), 0)))
 519         {
 520             yaz_log(YLOG_WARN, "isamb_open failed");
 521             ret = ZEBRA_FAIL;
 522         }
 523     }
 524     if (res_get_match(res, "isam", "bc", ISAM_DEFAULT))
 525     {
 526         struct ISAMC_M_s isamc_m;
 527
 528         if (!(reg->isamb = isamb_open(reg->bfs, "isamb",
 529                                       rw, key_isamc_m(res, &isamc_m), 1)))
 530         {
 531             yaz_log(YLOG_WARN, "isamb_open failed");
 532             ret = ZEBRA_FAIL;
 533         }
 534     }
 535     if (res_get_match(res, "isam", "null", ISAM_DEFAULT))
 536     {
 537         struct ISAMC_M_s isamc_m;
 538
 539         if (!(reg->isamb = isamb_open(reg->bfs, "isamb",
 540                                       rw, key_isamc_m(res, &isamc_m), -1)))
 541         {
 542             yaz_log(YLOG_WARN, "isamb_open failed");
 543             ret = ZEBRA_FAIL;
 544         }
 545     }
 546     if (ret == ZEBRA_OK)
 547     {
 548         reg->zei = zebraExplain_open(reg->records, reg->dh,
 549                                      res, rw, reg,
 550                                      zebra_extract_explain);
 551         if (!reg->zei)
 552         {
 553             yaz_log(YLOG_WARN, "Cannot obtain EXPLAIN information");
 554             ret = ZEBRA_FAIL;
 555         }
 556     }
 557
 558     if (ret != ZEBRA_OK)
 559     {
 560         zebra_register_close(zs, reg);
 561         return 0;
 562     }
 563     yaz_log(YLOG_DEBUG, "zebra_register_open ok p=%p", reg);
 564     return reg;
 565 }
 566
 567 ZEBRA_RES zebra_admin_shutdown(ZebraHandle zh)
 568 {
 569     ZEBRA_CHECK_HANDLE(zh);
 570     yaz_log(log_level, "zebra_admin_shutdown");
 571
 572     zebra_mutex_cond_lock(&zh->service->session_lock);
 573     zh->service->stop_flag = 1;
 574     zebra_mutex_cond_unlock(&zh->service->session_lock);
 575     return ZEBRA_OK;
 576 }
 577
 578 ZEBRA_RES zebra_admin_start(ZebraHandle zh)
 579 {
 580     ZebraService zs;
 581     ZEBRA_CHECK_HANDLE(zh);
 582     yaz_log(log_level, "zebra_admin_start");
 583     zs = zh->service;
 584     zebra_mutex_cond_lock(&zs->session_lock);
 585     zebra_mutex_cond_unlock(&zs->session_lock);
 586     return ZEBRA_OK;
 587 }
 588
 589 static void zebra_register_close(ZebraService zs, struct zebra_register *reg)
 590 {
 591     ASSERTZS;
 592     assert(reg);
 593     yaz_log(YLOG_DEBUG, "zebra_register_close p=%p", reg);
 594     reg->stop_flag = 0;
 595     zebra_chdir(zs);
 596
 597     zebraExplain_close(reg->zei);
 598     dict_close(reg->dict);
 599     if (reg->matchDict)
 600         dict_close(reg->matchDict);
 601     zebra_sort_close(reg->sort_index);
 602     if (reg->isams)
 603         isams_close(reg->isams);
 604     if (reg->isamc)
 605         isamc_close(reg->isamc);
 606     if (reg->isamb)
 607         isamb_close(reg->isamb);
 608     rec_close(&reg->records);
 609
 610     recTypes_destroy(reg->recTypes);
 611     zebra_maps_close(reg->zebra_maps);
 612     zebraRankDestroy(reg);
 613     bfs_destroy(reg->bfs);
 614     data1_destroy(reg->dh);
 615
 616     zebra_rec_keys_close(reg->keys);
 617     zebra_rec_keys_close(reg->sortKeys);
 618
 619     key_block_destroy(&reg->key_block);
 620     xfree(reg->name);
 621     xfree(reg);
 622 }
 623
 624 ZEBRA_RES zebra_stop(ZebraService zs)
 625 {
 626     if (!zs)
 627         return ZEBRA_OK;
 628     while (zs->sessions)
 629     {
 630         zebra_close(zs->sessions);
 631     }
 632
 633     zebra_mutex_cond_destroy(&zs->session_lock);
 634
 635     if (zs->passwd_db)
 636         passwd_db_close(zs->passwd_db);
 637
 638     recTypeClass_destroy(zs->record_classes);
 639     nmem_destroy(zs->nmem);
 640     res_close(zs->global_res);
 641
 642     yaz_timing_stop(zs->timing);
 643     yaz_log(YLOG_LOG, "zebra_stop: %4.2f %4.2f %4.2f",
 644             yaz_timing_get_real(zs->timing),
 645             yaz_timing_get_user(zs->timing),
 646             yaz_timing_get_sys(zs->timing));
 647
 648
 649     yaz_timing_destroy(&zs->timing);
 650     xfree(zs);
 651     return ZEBRA_OK;
 652 }
 653
 654 ZEBRA_RES zebra_close(ZebraHandle zh)
 655 {
 656     ZebraService zs;
 657     struct zebra_session **sp;
 658     int i;
 659
 660     yaz_log(log_level, "zebra_close");
 661     ZEBRA_CHECK_HANDLE(zh);
 662
 663     zh->errCode = 0;
 664
 665     zs = zh->service;
 666     yaz_log(YLOG_DEBUG, "zebra_close zh=%p", zh);
 667     resultSetDestroy(zh, -1, 0, 0);
 668
 669     if (zh->reg)
 670         zebra_register_close(zh->service, zh->reg);
 671     zebra_close_res(zh);
 672     res_close(zh->session_res);
 673
 674     xfree(zh->record_encoding);
 675
 676     xfree(zh->dbaccesslist);
 677
 678     for (i = 0; i < zh->num_basenames; i++)
 679         xfree(zh->basenames[i]);
 680     xfree(zh->basenames);
 681
 682     if (zh->iconv_to_utf8 != 0)
 683         yaz_iconv_close(zh->iconv_to_utf8);
 684     if (zh->iconv_from_utf8 != 0)
 685         yaz_iconv_close(zh->iconv_from_utf8);
 686
 687     zebra_mutex_cond_lock(&zs->session_lock);
 688     zebra_lock_destroy(zh->lock_normal);
 689     zebra_lock_destroy(zh->lock_shadow);
 690     sp = &zs->sessions;
 691     while (1)
 692     {
 693         assert(*sp);
 694         if (*sp == zh)
 695         {
 696             *sp = (*sp)->next;
 697             break;
 698         }
 699         sp = &(*sp)->next;
 700     }
 701     zebra_mutex_cond_unlock(&zs->session_lock);
 702     xfree(zh->reg_name);
 703     xfree(zh->user_perm);
 704     zh->service = 0; /* more likely to trigger an assert */
 705
 706     zebra_limit_destroy(zh->m_limit);
 707
 708     nmem_destroy(zh->nmem_error);
 709
 710     xfree(zh->path_reg);
 711     xfree(zh);
 712     return ZEBRA_OK;
 713 }
 714
 715 struct map_baseinfo {
 716     ZebraHandle zh;
 717     NMEM mem;
 718     int num_bases;
 719     char **basenames;
 720     int new_num_bases;
 721     char **new_basenames;
 722     int new_num_max;
 723 };
 724
 725 static void zebra_open_res(ZebraHandle zh)
 726 {
 727     char fname[512];
 728     ASSERTZH;
 729     zh->errCode = 0;
 730
 731     if (zh->path_reg)
 732     {
 733         sprintf(fname, "%.200s/zebra.cfg", zh->path_reg);
 734         zh->res = res_open(zh->session_res, 0);
 735         res_read_file(zh->res, fname);
 736     }
 737     else if (*zh->reg_name == 0)
 738     {
 739         zh->res = res_open(zh->session_res, 0);
 740     }
 741     else
 742     {
 743         yaz_log(YLOG_WARN, "no register root specified");
 744         zh->res = 0;  /* no path for register - fail! */
 745     }
 746 }
 747
 748 static void zebra_close_res(ZebraHandle zh)
 749 {
 750     ASSERTZH;
 751     zh->errCode = 0;
 752     res_close(zh->res);
 753     zh->res = 0;
 754 }
 755
 756 static void zebra_select_register(ZebraHandle zh, const char *new_reg)
 757 {
 758     ASSERTZH;
 759     zh->errCode = 0;
 760     if (zh->res && strcmp(zh->reg_name, new_reg) == 0)
 761         return;
 762     if (!zh->res)
 763     {
 764         assert(zh->reg == 0);
 765         assert(*zh->reg_name == 0);
 766     }
 767     else
 768     {
 769         if (zh->reg)
 770         {
 771             resultSetInvalidate(zh);
 772             zebra_register_close(zh->service, zh->reg);
 773             zh->reg = 0;
 774         }
 775         zebra_close_res(zh);
 776     }
 777     xfree(zh->reg_name);
 778     zh->reg_name = xstrdup(new_reg);
 779
 780     xfree(zh->path_reg);
 781     zh->path_reg = 0;
 782     if (zh->service->path_root)
 783     {
 784         zh->path_reg = xmalloc(strlen(zh->service->path_root) +
 785                                strlen(zh->reg_name) + 3);
 786         strcpy(zh->path_reg, zh->service->path_root);
 787         if (*zh->reg_name)
 788         {
 789             strcat(zh->path_reg, "/");
 790             strcat(zh->path_reg, zh->reg_name);
 791         }
 792     }
 793     zebra_open_res(zh);
 794
 795     if (zh->lock_normal)
 796         zebra_lock_destroy(zh->lock_normal);
 797     zh->lock_normal = 0;
 798
 799     if (zh->lock_shadow)
 800         zebra_lock_destroy(zh->lock_shadow);
 801     zh->lock_shadow = 0;
 802
 803     if (zh->res)
 804     {
 805         char fname[512];
 806         const char *lock_area = res_get(zh->res, "lockDir");
 807
 808         if (!lock_area && zh->path_reg)
 809             res_set(zh->res, "lockDir", zh->path_reg);
 810         sprintf(fname, "norm.%s.LCK", zh->reg_name);
 811         zh->lock_normal =
 812             zebra_lock_create(res_get(zh->res, "lockDir"), fname);
 813
 814         sprintf(fname, "shadow.%s.LCK", zh->reg_name);
 815         zh->lock_shadow =
 816             zebra_lock_create(res_get(zh->res, "lockDir"), fname);
 817
 818         if (!zh->lock_normal || !zh->lock_shadow)
 819         {
 820             if (zh->lock_normal)
 821             {
 822                 zebra_lock_destroy(zh->lock_normal);
 823                 zh->lock_normal = 0;
 824             }
 825             if (zh->lock_shadow)
 826             {
 827                 zebra_lock_destroy(zh->lock_shadow);
 828                 zh->lock_shadow = 0;
 829             }
 830             zebra_close_res(zh);
 831         }
 832     }
 833     if (zh->res)
 834     {
 835         int approx = 0;
 836         if (res_get_int(zh->res, "estimatehits", &approx) == ZEBRA_OK)
 837             zebra_set_approx_limit(zh, approx);
 838     }
 839     if (zh->res)
 840     {
 841         if (res_get_int(zh->res, "staticrank", &zh->m_staticrank) == ZEBRA_OK)
 842             yaz_log(YLOG_LOG, "static rank set and is %d", zh->m_staticrank);
 843     }
 844     if (zh->res)
 845     {
 846         if (res_get_int(zh->res, "segment", &zh->m_segment_indexing) ==
 847             ZEBRA_OK)
 848         {
 849             yaz_log(YLOG_DEBUG, "segment indexing set and is %d",
 850                     zh->m_segment_indexing);
 851         }
 852     }
 853 }
 854
 855 void map_basenames_func(void *vp, const char *name, const char *value)
 856 {
 857     struct map_baseinfo *p = (struct map_baseinfo *) vp;
 858     int i, no;
 859     char fromdb[128], todb[8][128];
 860
 861     assert(value);
 862     assert(name);
 863     assert(vp);
 864
 865     no =
 866         sscanf(value, "%127s %127s %127s %127s %127s %127s %127s %127s %127s",
 867                fromdb,  todb[0], todb[1], todb[2], todb[3], todb[4],
 868                todb[5], todb[6], todb[7]);
 869     if (no < 2)
 870         return ;
 871     no--;
 872     for (i = 0; i<p->num_bases; i++)
 873         if (p->basenames[i] && !STRCASECMP(p->basenames[i], fromdb))
 874         {
 875             p->basenames[i] = 0;
 876             for (i = 0; i < no; i++)
 877             {
 878                 if (p->new_num_bases == p->new_num_max)
 879                     return;
 880                 p->new_basenames[(p->new_num_bases)++] =
 881                     nmem_strdup(p->mem, todb[i]);
 882             }
 883             return;
 884         }
 885 }
 886
 887 int zebra_select_default_database(ZebraHandle zh)
 888 {
 889     if (!zh->res)
 890     {
 891         /* no database has been selected - so we select based on
 892            resource setting (including group)
 893         */
 894         const char *group = res_get(zh->session_res, "group");
 895         const char *v = res_get_prefix(zh->session_res,
 896                                        "database", group, "Default");
 897         return zebra_select_database(zh, v);
 898     }
 899     return 0;
 900 }
 901
 902 void map_basenames(ZebraHandle zh, ODR stream,
 903                    int *num_bases, char ***basenames)
 904 {
 905     struct map_baseinfo info;
 906     struct map_baseinfo *p = &info;
 907     int i;
 908     ASSERTZH;
 909     yaz_log(log_level, "map_basenames ");
 910     assert(stream);
 911
 912     info.zh = zh;
 913
 914     info.num_bases = *num_bases;
 915     info.basenames = *basenames;
 916     info.new_num_max = 128;
 917     info.new_num_bases = 0;
 918     info.new_basenames = (char **)
 919         odr_malloc(stream, sizeof(*info.new_basenames) * info.new_num_max);
 920     info.mem = stream->mem;
 921
 922     res_trav(zh->session_res, "mapdb", &info, map_basenames_func);
 923
 924     for (i = 0; i<p->num_bases; i++)
 925         if (p->basenames[i] && p->new_num_bases < p->new_num_max)
 926         {
 927             p->new_basenames[(p->new_num_bases)++] =
 928                 nmem_strdup(p->mem, p->basenames[i]);
 929         }
 930     *num_bases = info.new_num_bases;
 931     *basenames = info.new_basenames;
 932     for (i = 0; i<*num_bases; i++)
 933         yaz_log(YLOG_DEBUG, "base %s", (*basenames)[i]);
 934 }
 935
 936 ZEBRA_RES zebra_select_database(ZebraHandle zh, const char *basename)
 937 {
 938     ZEBRA_CHECK_HANDLE(zh);
 939
 940     yaz_log(log_level, "zebra_select_database %s",basename);
 941     assert(basename);
 942     return zebra_select_databases(zh, 1, &basename);
 943 }
 944
 945 ZEBRA_RES zebra_select_databases(ZebraHandle zh, int num_bases,
 946                                  const char **basenames)
 947 {
 948     int i;
 949     const char *cp;
 950     int len = 0;
 951     char *new_reg = 0;
 952
 953     ZEBRA_CHECK_HANDLE(zh);
 954     assert(basenames);
 955
 956     yaz_log(log_level, "zebra_select_databases n=%d [0]=%s",
 957             num_bases,basenames[0]);
 958     zh->errCode = 0;
 959
 960     if (num_bases < 1)
 961     {
 962         zh->errCode = YAZ_BIB1_COMBI_OF_SPECIFIED_DATABASES_UNSUPP;
 963         return ZEBRA_FAIL;
 964     }
 965
 966     /* Check if the user has access to all databases (Seb) */
 967     /* You could argue that this should happen later, after we have
 968      * determined that the database(s) exist. */
 969     if (zh->dbaccesslist) {
 970         for (i = 0; i < num_bases; i++) {
 971             const char *db = basenames[i];
 972             char *p, *pp;
 973             for (p = zh->dbaccesslist; p && *p; p = pp) {
 974                 int len;
 975                 if ((pp = strchr(p, '+'))) {
 976                     len = pp - p;
 977                     pp++;
 978                 }
 979                 else
 980                     len = strlen(p);
 981                 if (len == strlen(db) && !strncmp(db, p, len))
 982                     break;
 983             }
 984             if (!p) {
 985                 zh->errCode = YAZ_BIB1_ACCESS_TO_SPECIFIED_DATABASE_DENIED;
 986                 return ZEBRA_FAIL;
 987             }
 988         }
 989     }
 990
 991     for (i = 0; i < zh->num_basenames; i++)
 992         xfree(zh->basenames[i]);
 993     xfree(zh->basenames);
 994
 995     zh->num_basenames = num_bases;
 996     zh->basenames = xmalloc(zh->num_basenames * sizeof(*zh->basenames));
 997     for (i = 0; i < zh->num_basenames; i++)
 998         zh->basenames[i] = xstrdup(basenames[i]);
 999
1000     cp = strrchr(basenames[0], '/');
1001     if (cp)
1002     {
1003         len = cp - basenames[0];
1004         new_reg = xmalloc(len + 1);
1005         memcpy(new_reg, basenames[0], len);
1006         new_reg[len] = '\0';
1007     }
1008     else
1009         new_reg = xstrdup("");
1010     for (i = 1; i<num_bases; i++)
1011     {
1012         const char *cp1;
1013
1014         cp1 = strrchr(basenames[i], '/');
1015         if (cp)
1016         {
1017             if (!cp1)
1018             {
1019                 zh->errCode = YAZ_BIB1_COMBI_OF_SPECIFIED_DATABASES_UNSUPP;
1020                 return -1;
1021             }
1022             if (len != cp1 - basenames[i] ||
1023                 memcmp(basenames[i], new_reg, len))
1024             {
1025                 zh->errCode = YAZ_BIB1_COMBI_OF_SPECIFIED_DATABASES_UNSUPP;
1026                 return -1;
1027             }
1028         }
1029         else
1030         {
1031             if (cp1)
1032             {
1033                 zh->errCode = YAZ_BIB1_COMBI_OF_SPECIFIED_DATABASES_UNSUPP;
1034                 return ZEBRA_FAIL;
1035             }
1036         }
1037     }
1038     zebra_select_register(zh, new_reg);
1039     xfree(new_reg);
1040     if (!zh->res)
1041     {
1042         zh->errCode = YAZ_BIB1_DATABASE_UNAVAILABLE;
1043         return ZEBRA_FAIL;
1044     }
1045     if (!zh->lock_normal || !zh->lock_shadow)
1046     {
1047         zh->errCode = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1048         return ZEBRA_FAIL;
1049     }
1050     return ZEBRA_OK;
1051 }
1052
1053 ZEBRA_RES zebra_set_approx_limit(ZebraHandle zh, zint approx_limit)
1054 {
1055     if (approx_limit == 0)
1056         approx_limit = DEFAULT_APPROX_LIMIT;
1057     zh->approx_limit = approx_limit;
1058     return ZEBRA_OK;
1059 }
1060
1061 void zebra_set_partial_result(ZebraHandle zh)
1062 {
1063     zh->partial_result = 1;
1064 }
1065
1066
1067 ZEBRA_RES zebra_set_break_handler(ZebraHandle zh,
1068                                   int (*f)(void *client_data),
1069                                   void *client_data)
1070 {
1071     zh->break_handler_func = f;
1072     zh->break_handler_data = client_data;
1073     return ZEBRA_OK;
1074 }
1075
1076 ZEBRA_RES zebra_search_RPN_x(ZebraHandle zh, ODR o, Z_RPNQuery *query,
1077                              const char *setname, zint *hits,
1078                              int *estimated_hit_count,
1079                              int *partial_resultset)
1080 {
1081     ZEBRA_RES r;
1082
1083     ZEBRA_CHECK_HANDLE(zh);
1084
1085     assert(o);
1086     assert(query);
1087     assert(hits);
1088     assert(setname);
1089     yaz_log(log_level, "zebra_search_rpn");
1090
1091     zh->partial_result = 0;
1092
1093     if (zebra_begin_read(zh) == ZEBRA_FAIL)
1094         return ZEBRA_FAIL;
1095
1096     r = resultSetAddRPN(zh, odr_extract_mem(o), query,
1097                         zh->num_basenames, zh->basenames, setname,
1098                         hits, estimated_hit_count);
1099
1100     *partial_resultset = zh->partial_result;
1101     zebra_end_read(zh);
1102     return r;
1103 }
1104
1105 ZEBRA_RES zebra_search_RPN(ZebraHandle zh, ODR o, Z_RPNQuery *query,
1106                            const char *setname, zint *hits)
1107 {
1108     int estimated_hit_count;
1109     int partial_resultset;
1110     return zebra_search_RPN_x(zh, o, query, setname, hits,
1111                               &estimated_hit_count,
1112                               &partial_resultset);
1113 }
1114
1115 ZEBRA_RES zebra_records_retrieve(ZebraHandle zh, ODR stream,
1116                                  const char *setname,
1117                                  Z_RecordComposition *comp,
1118                                  const Odr_oid *input_format, int num_recs,
1119                                  ZebraRetrievalRecord *recs)
1120 {
1121     ZebraMetaRecord *poset;
1122     int i;
1123     ZEBRA_RES ret = ZEBRA_OK;
1124     zint *pos_array;
1125
1126     ZEBRA_CHECK_HANDLE(zh);
1127     assert(stream);
1128     assert(setname);
1129     assert(recs);
1130     assert(num_recs>0);
1131
1132     yaz_log(log_level, "zebra_records_retrieve n=%d", num_recs);
1133
1134     if (!zh->res)
1135     {
1136         zebra_setError(zh, YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST,
1137                        setname);
1138         return ZEBRA_FAIL;
1139     }
1140
1141     if (zebra_begin_read(zh) == ZEBRA_FAIL)
1142         return ZEBRA_FAIL;
1143
1144     pos_array = (zint *) xmalloc(num_recs * sizeof(*pos_array));
1145     for (i = 0; i<num_recs; i++)
1146         pos_array[i] = recs[i].position;
1147     poset = zebra_meta_records_create(zh, setname, num_recs, pos_array);
1148     if (!poset)
1149     {
1150         yaz_log(YLOG_DEBUG, "zebraPosSetCreate error");
1151         zebra_setError(zh, YAZ_BIB1_SPECIFIED_RESULT_SET_DOES_NOT_EXIST,
1152                        setname);
1153         ret = ZEBRA_FAIL;
1154     }
1155     else
1156     {
1157         WRBUF addinfo_w = wrbuf_alloc();
1158         for (i = 0; i < num_recs; i++)
1159         {
1160             recs[i].errCode = 0;
1161             recs[i].errString = 0;
1162             recs[i].format = 0;
1163             recs[i].len = 0;
1164             recs[i].buf = 0;
1165             recs[i].base = 0;
1166             recs[i].sysno = poset[i].sysno;
1167             if (poset[i].term)
1168             {
1169                 recs[i].format = yaz_oid_recsyn_sutrs;
1170                 recs[i].len = strlen(poset[i].term);
1171                 recs[i].buf = poset[i].term;
1172                 recs[i].base = poset[i].db;
1173             }
1174             else if (poset[i].sysno)
1175             {
1176                 char *buf;
1177                 int len = 0;
1178                 zebra_snippets *hit_snippet = zebra_snippets_create();
1179
1180                 /* we disable hit snippets for now. It does not work well
1181                    and it slows retrieval down a lot */
1182 #if 0
1183                 zebra_snippets_hit_vector(zh, setname, poset[i].sysno,
1184                                           hit_snippet);
1185 #endif
1186                 wrbuf_rewind(addinfo_w);
1187                 recs[i].errCode =
1188                     zebra_record_fetch(zh, setname,
1189                                        poset[i].sysno, poset[i].score,
1190                                        stream, input_format, comp,
1191                                        &recs[i].format, &buf, &len,
1192                                        &recs[i].base, addinfo_w);
1193
1194                 if (wrbuf_len(addinfo_w))
1195                     recs[i].errString =
1196                         odr_strdup(stream, wrbuf_cstr(addinfo_w));
1197                 recs[i].len = len;
1198                 if (len > 0)
1199                 {
1200                     recs[i].buf = (char*) odr_malloc(stream, len);
1201                     memcpy(recs[i].buf, buf, len);
1202                 }
1203                 else
1204                     recs[i].buf = buf;
1205                 recs[i].score = poset[i].score;
1206                 zebra_snippets_destroy(hit_snippet);
1207             }
1208             else
1209             {
1210                 /* only need to set it once */
1211                 if (pos_array[i] < zh->approx_limit && ret == ZEBRA_OK)
1212                 {
1213                     zebra_setError_zint(zh,
1214                                         YAZ_BIB1_PRESENT_REQUEST_OUT_OF_RANGE,
1215                                         pos_array[i]);
1216                     ret = ZEBRA_FAIL;
1217                     break;
1218                 }
1219             }
1220         }
1221         zebra_meta_records_destroy(zh, poset, num_recs);
1222         wrbuf_destroy(addinfo_w);
1223     }
1224     zebra_end_read(zh);
1225     xfree(pos_array);
1226     return ret;
1227 }
1228
1229 ZEBRA_RES zebra_scan_PQF(ZebraHandle zh, ODR stream, const char *query,
1230                          int *position,
1231                          int *num_entries, ZebraScanEntry **entries,
1232                          int *is_partial,
1233                          const char *setname)
1234 {
1235     YAZ_PQF_Parser pqf_parser = yaz_pqf_create();
1236     Z_AttributesPlusTerm *zapt;
1237     Odr_oid *attributeSet;
1238     ZEBRA_RES res;
1239
1240     if (!(zapt = yaz_pqf_scan(pqf_parser, stream, &attributeSet, query)))
1241     {
1242         res = ZEBRA_FAIL;
1243         zh->errCode = YAZ_BIB1_SCAN_MALFORMED_SCAN;
1244     }
1245     else
1246     {
1247         res = zebra_scan(zh, stream, zapt, yaz_oid_attset_bib_1,
1248                          position, num_entries, entries, is_partial,
1249                          setname);
1250     }
1251     yaz_pqf_destroy(pqf_parser);
1252     return res;
1253 }
1254
1255 ZEBRA_RES zebra_scan(ZebraHandle zh, ODR stream, Z_AttributesPlusTerm *zapt,
1256                      const Odr_oid *attributeset,
1257                      int *position,
1258                      int *num_entries, ZebraScanEntry **entries,
1259                      int *is_partial,
1260                      const char *setname)
1261 {
1262     ZEBRA_RES res;
1263
1264     ZEBRA_CHECK_HANDLE(zh);
1265
1266     assert(stream);
1267     assert(zapt);
1268     assert(position);
1269     assert(num_entries);
1270     assert(is_partial);
1271     assert(entries);
1272     yaz_log(log_level, "zebra_scan");
1273
1274     if (zebra_begin_read(zh) == ZEBRA_FAIL)
1275     {
1276         *entries = 0;
1277         *num_entries = 0;
1278         return ZEBRA_FAIL;
1279     }
1280
1281     res = rpn_scan(zh, stream, zapt, attributeset,
1282                    zh->num_basenames, zh->basenames, position,
1283                    num_entries, entries, is_partial, setname);
1284     zebra_end_read(zh);
1285     return res;
1286 }
1287
1288 ZEBRA_RES zebra_sort(ZebraHandle zh, ODR stream,
1289                      int num_input_setnames, const char **input_setnames,
1290                      const char *output_setname,
1291                      Z_SortKeySpecList *sort_sequence,
1292                      int *sort_status)
1293 {
1294     ZEBRA_RES res;
1295     ZEBRA_CHECK_HANDLE(zh);
1296     assert(stream);
1297     assert(num_input_setnames>0);
1298     assert(input_setnames);
1299     assert(sort_sequence);
1300     assert(sort_status);
1301     yaz_log(log_level, "zebra_sort");
1302
1303     if (zebra_begin_read(zh) == ZEBRA_FAIL)
1304         return ZEBRA_FAIL;
1305     res = resultSetSort(zh, stream->mem, num_input_setnames, input_setnames,
1306                         output_setname, sort_sequence, sort_status);
1307     zebra_end_read(zh);
1308     return res;
1309 }
1310
1311 int zebra_deleteResultSet(ZebraHandle zh, int function,
1312                           int num_setnames, char **setnames,
1313                           int *statuses)
1314 {
1315     int i, status;
1316     ASSERTZH;
1317     yaz_log(log_level, "zebra_deleteResultSet n=%d", num_setnames);
1318
1319     if (zebra_begin_read(zh))
1320         return Z_DeleteStatus_systemProblemAtTarget;
1321     switch (function)
1322     {
1323     case Z_DeleteResultSetRequest_list:
1324         assert(num_setnames>0);
1325         assert(setnames);
1326         resultSetDestroy(zh, num_setnames, setnames, statuses);
1327         break;
1328     case Z_DeleteResultSetRequest_all:
1329         resultSetDestroy(zh, -1, 0, statuses);
1330         break;
1331     }
1332     zebra_end_read(zh);
1333     status = Z_DeleteStatus_success;
1334     for (i = 0; i<num_setnames; i++)
1335         if (statuses[i] == Z_DeleteStatus_resultSetDidNotExist)
1336             status = statuses[i];
1337     return status;
1338 }
1339
1340 int zebra_errCode(ZebraHandle zh)
1341 {
1342     if (zh)
1343     {
1344         yaz_log(log_level, "zebra_errCode: %d",zh->errCode);
1345         return zh->errCode;
1346     }
1347     yaz_log(log_level, "zebra_errCode: o");
1348     return 0;
1349 }
1350
1351 const char *zebra_errString(ZebraHandle zh)
1352 {
1353     const char *e = 0;
1354     if (zh)
1355         e= diagbib1_str(zh->errCode);
1356     yaz_log(log_level, "zebra_errString: %s",e);
1357     return e;
1358 }
1359
1360 char *zebra_errAdd(ZebraHandle zh)
1361 {
1362     char *a = 0;
1363     if (zh)
1364         a= zh->errString;
1365     yaz_log(log_level, "zebra_errAdd: %s",a);
1366     return a;
1367 }
1368
1369 ZEBRA_RES zebra_auth(ZebraHandle zh, const char *user, const char *pass)
1370 {
1371     const char *p;
1372     const char *astring;
1373     char u[40];
1374     ZebraService zs;
1375
1376     ZEBRA_CHECK_HANDLE(zh);
1377
1378     zs = zh->service;
1379
1380     sprintf(u, "perm.%.30s", user ? user : "anonymous");
1381     p = res_get(zs->global_res, u);
1382     xfree(zh->user_perm);
1383     zh->user_perm = xstrdup(p ? p : "r");
1384
1385     /* Determine database access list */
1386     astring = res_get(zs->dbaccess, user ? user : "anonymous");
1387     if (astring)
1388         zh->dbaccesslist = xstrdup(astring);
1389     else
1390         zh->dbaccesslist = 0;
1391
1392     /* users that don't require a password .. */
1393     if (zh->user_perm && strchr(zh->user_perm, 'a'))
1394         return ZEBRA_OK;
1395
1396     if (!zs->passwd_db || !passwd_db_auth(zs->passwd_db, user, pass))
1397         return ZEBRA_OK;
1398     return ZEBRA_FAIL;
1399 }
1400
1401 ZEBRA_RES zebra_admin_import_begin(ZebraHandle zh, const char *database,
1402                                    const char *record_type)
1403 {
1404     yaz_log(log_level, "zebra_admin_import_begin db=%s rt=%s",
1405             database, record_type);
1406     if (zebra_select_database(zh, database) == ZEBRA_FAIL)
1407         return ZEBRA_FAIL;
1408     return zebra_begin_trans(zh, 1);
1409 }
1410
1411 ZEBRA_RES zebra_admin_import_end(ZebraHandle zh)
1412 {
1413     ZEBRA_CHECK_HANDLE(zh);
1414     yaz_log(log_level, "zebra_admin_import_end");
1415     return zebra_end_trans(zh);
1416 }
1417
1418 ZEBRA_RES zebra_admin_import_segment(ZebraHandle zh, Z_Segment *segment)
1419 {
1420     ZEBRA_RES res = ZEBRA_OK;
1421     zint sysno;
1422     int i;
1423     ZEBRA_CHECK_HANDLE(zh);
1424     yaz_log(log_level, "zebra_admin_import_segment");
1425
1426     for (i = 0; i<segment->num_segmentRecords; i++)
1427     {
1428         Z_NamePlusRecord *npr = segment->segmentRecords[i];
1429
1430         if (npr->which == Z_NamePlusRecord_intermediateFragment)
1431         {
1432             Z_FragmentSyntax *fragment = npr->u.intermediateFragment;
1433             if (fragment->which == Z_FragmentSyntax_notExternallyTagged)
1434             {
1435                 Odr_oct *oct = fragment->u.notExternallyTagged;
1436                 sysno = 0;
1437
1438                 if(zebra_update_record(
1439                        zh,
1440                        action_update,
1441                        0, /* record Type */
1442                        &sysno,
1443                        0, /* match */
1444                        0, /* fname */
1445                        (const char *) oct->buf, oct->len) == ZEBRA_FAIL)
1446                     res = ZEBRA_FAIL;
1447             }
1448         }
1449     }
1450     return res;
1451 }
1452
1453 int delete_w_handle(const char *info, void *handle)
1454 {
1455     ZebraHandle zh = (ZebraHandle) handle;
1456     ISAM_P pos;
1457
1458     if (*info == sizeof(pos))
1459     {
1460         memcpy(&pos, info+1, sizeof(pos));
1461         isamb_unlink(zh->reg->isamb, pos);
1462     }
1463     return 0;
1464 }
1465
1466 int delete_w_all_handle(const char *info, void *handle)
1467 {
1468     ZebraHandle zh = (ZebraHandle) handle;
1469     ISAM_P pos;
1470
1471     if (*info == sizeof(pos))
1472     {
1473         ISAMB_PP pt;
1474         memcpy(&pos, info+1, sizeof(pos));
1475         pt = isamb_pp_open(zh->reg->isamb, pos, 2);
1476         if (pt)
1477         {
1478             struct it_key key;
1479             key.mem[0] = 0;
1480             while (isamb_pp_read(pt, &key))
1481             {
1482                 Record rec;
1483                 rec = rec_get(zh->reg->records, key.mem[0]);
1484                 rec_del(zh->reg->records, &rec);
1485             }
1486             isamb_pp_close(pt);
1487         }
1488     }
1489     return delete_w_handle(info, handle);
1490 }
1491
1492 static int delete_SU_handle(void *handle, int ord,
1493                             const char *index_type, const char *string_index,
1494                             zinfo_index_category_t cat)
1495 {
1496     ZebraHandle zh = (ZebraHandle) handle;
1497     char ord_buf[20];
1498     int ord_len;
1499 #if 0
1500     yaz_log(YLOG_LOG, "ord=%d index_type=%s index=%s cat=%d", ord,
1501             index_type, string_index, (int) cat);
1502 #endif
1503     ord_len = key_SU_encode(ord, ord_buf);
1504     ord_buf[ord_len] = '\0';
1505
1506     assert(zh->reg->isamb);
1507     assert(zh->reg->records);
1508     dict_delete_subtree(zh->reg->dict, ord_buf,
1509                         zh,
1510                         !strcmp(string_index, "_ALLRECORDS") ?
1511                         delete_w_all_handle : delete_w_handle);
1512     return 0;
1513 }
1514
1515 ZEBRA_RES zebra_drop_database(ZebraHandle zh, const char *db)
1516 {
1517     ZEBRA_RES ret = ZEBRA_OK;
1518
1519     yaz_log(log_level, "zebra_drop_database %s", db);
1520     ZEBRA_CHECK_HANDLE(zh);
1521
1522     if (zebra_select_database(zh, db) == ZEBRA_FAIL)
1523         return ZEBRA_FAIL;
1524     if (zebra_begin_trans(zh, 1) == ZEBRA_FAIL)
1525         return ZEBRA_FAIL;
1526     if (zh->reg->isamb)
1527     {
1528         int db_ord;
1529         if (zebraExplain_curDatabase(zh->reg->zei, db))
1530         {
1531             zebra_setError(zh, YAZ_BIB1_DATABASE_DOES_NOT_EXIST, db);
1532             ret = ZEBRA_FAIL;
1533         }
1534         else
1535         {
1536             db_ord = zebraExplain_get_database_ord(zh->reg->zei);
1537             dict_delete_subtree_ord(zh->reg->matchDict, db_ord,
1538                                     0 /* handle */, 0 /* func */);
1539             zebraExplain_trav_ord(zh->reg->zei, zh, delete_SU_handle);
1540             zebraExplain_removeDatabase(zh->reg->zei, zh);
1541             zebra_remove_file_match(zh);
1542         }
1543     }
1544     else
1545     {
1546         yaz_log(YLOG_WARN, "drop database only supported for isam:b");
1547         zebra_setError(zh, YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED,
1548                        "drop database only supported for isam:b");
1549         ret = ZEBRA_FAIL;
1550     }
1551     if (zebra_end_trans(zh) != ZEBRA_OK)
1552     {
1553         yaz_log(YLOG_WARN, "zebra_end_trans failed");
1554         ret = ZEBRA_FAIL;
1555     }
1556     return ret;
1557 }
1558
1559 ZEBRA_RES zebra_create_database(ZebraHandle zh, const char *db)
1560 {
1561     yaz_log(log_level, "zebra_create_database %s", db);
1562     ZEBRA_CHECK_HANDLE(zh);
1563     assert(db);
1564
1565     if (zebra_select_database(zh, db) == ZEBRA_FAIL)
1566         return ZEBRA_FAIL;
1567     if (zebra_begin_trans(zh, 1))
1568         return ZEBRA_FAIL;
1569
1570     /* announce database */
1571     if (zebraExplain_newDatabase(zh->reg->zei, db, 0
1572                                  /* explainDatabase */))
1573     {
1574         if (zebra_end_trans(zh) != ZEBRA_OK)
1575         {
1576             yaz_log(YLOG_WARN, "zebra_end_trans failed");
1577         }
1578         zebra_setError(zh, YAZ_BIB1_ES_IMMEDIATE_EXECUTION_FAILED, db);
1579         return ZEBRA_FAIL;
1580     }
1581     return zebra_end_trans(zh);
1582 }
1583
1584 int zebra_string_norm(ZebraHandle zh, const char *index_type,
1585                       const char *input_str, int input_len,
1586                       char *output_str, int output_len)
1587 {
1588     WRBUF wrbuf;
1589     zebra_map_t zm = zebra_map_get(zh->reg->zebra_maps, index_type);
1590     ASSERTZH;
1591     assert(input_str);
1592     assert(output_str);
1593     yaz_log(log_level, "zebra_string_norm ");
1594
1595     if (!zh->reg->zebra_maps)
1596         return -1;
1597     wrbuf = zebra_replace(zm, "", input_str, input_len);
1598     if (!wrbuf)
1599         return -2;
1600     if (wrbuf_len(wrbuf) >= output_len)
1601         return -3;
1602     if (wrbuf_len(wrbuf))
1603         memcpy(output_str, wrbuf_buf(wrbuf), wrbuf_len(wrbuf));
1604     output_str[wrbuf_len(wrbuf)] = '\0';
1605     return wrbuf_len(wrbuf);
1606 }
1607
1608 /** \brief set register state (state*.LCK)
1609     \param zh Zebra handle
1610     \param val state
1611     \param seqno sequence number
1612
1613     val is one of:
1614     d=writing to shadow(shadow enabled); writing to register (shadow disabled)
1615     o=reading only
1616     c=commit (writing to register, reading from shadow, shadow mode only)
1617 */
1618 static void zebra_set_state(ZebraHandle zh, int val, int seqno)
1619 {
1620     char state_fname[256];
1621     char *fname;
1622     long p = getpid();
1623     FILE *f;
1624     ASSERTZH;
1625     yaz_log(log_level, "zebra_set_state v=%c seq=%d", val, seqno);
1626
1627     sprintf(state_fname, "state.%s.LCK", zh->reg_name);
1628     fname = zebra_mk_fname(res_get(zh->res, "lockDir"), state_fname);
1629     f = fopen(fname, "w");
1630     if (!f)
1631     {
1632         yaz_log(YLOG_FATAL|YLOG_ERRNO, "open %s w", state_fname);
1633         exit(1);
1634     }
1635     yaz_log(YLOG_DEBUG, "zebra_set_state: %c %d %ld", val, seqno, p);
1636     fprintf(f, "%c %d %ld\n", val, seqno, p);
1637     fclose(f);
1638     xfree(fname);
1639 }
1640
1641 static void zebra_get_state(ZebraHandle zh, char *val, int *seqno)
1642 {
1643     char state_fname[256];
1644     char *fname;
1645     FILE *f;
1646
1647     ASSERTZH;
1648     yaz_log(log_level, "zebra_get_state ");
1649
1650     sprintf(state_fname, "state.%s.LCK", zh->reg_name);
1651     fname = zebra_mk_fname(res_get(zh->res, "lockDir"), state_fname);
1652     f = fopen(fname, "r");
1653     *val = 'o';
1654     *seqno = 0;
1655
1656     if (f)
1657     {
1658         if (fscanf(f, "%c %d", val, seqno) != 2)
1659         {
1660             yaz_log(YLOG_ERRNO|YLOG_WARN, "fscan fail %s",
1661                     state_fname);
1662         }
1663         fclose(f);
1664     }
1665     xfree(fname);
1666 }
1667
1668 ZEBRA_RES zebra_begin_read(ZebraHandle zh)
1669 {
1670     return zebra_begin_trans(zh, 0);
1671 }
1672
1673 ZEBRA_RES zebra_end_read(ZebraHandle zh)
1674 {
1675     return zebra_end_trans(zh);
1676 }
1677
1678 static void read_res_for_transaction(ZebraHandle zh)
1679 {
1680     const char *group = res_get(zh->res, "group");
1681     const char *v;
1682     /* FIXME - do we still use groups ?? */
1683
1684     zh->m_group = group;
1685     v = res_get_prefix(zh->res, "followLinks", group, "1");
1686     zh->m_follow_links = atoi(v);
1687
1688     zh->m_record_id = res_get_prefix(zh->res, "recordId", group, 0);
1689     zh->m_record_type = res_get_prefix(zh->res, "recordType", group, 0);
1690
1691     v = res_get_prefix(zh->res, "storeKeys", group, "1");
1692     zh->m_store_keys = atoi(v);
1693
1694     v = res_get_prefix(zh->res, "storeData", group, "1");
1695     zh->m_store_data = atoi(v);
1696
1697     v = res_get_prefix(zh->res, "explainDatabase", group, "0");
1698     zh->m_explain_database = atoi(v);
1699
1700     v = res_get_prefix(zh->res, "openRW", group, "1");
1701     zh->m_flag_rw = atoi(v);
1702
1703     v = res_get_prefix(zh->res, "fileVerboseLimit", group, "1000");
1704     zh->m_file_verbose_limit = atoi(v);
1705 }
1706
1707 ZEBRA_RES zebra_begin_trans(ZebraHandle zh, int rw)
1708 {
1709     ZEBRA_CHECK_HANDLE(zh);
1710     zebra_select_default_database(zh);
1711     if (!zh->res)
1712     {
1713         zebra_setError(zh, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR,
1714                        "zebra_begin_trans: no database selected");
1715         return ZEBRA_FAIL;
1716     }
1717     ASSERTZHRES;
1718     yaz_log(log_level, "zebra_begin_trans rw=%d",rw);
1719
1720     if (zh->user_perm)
1721     {
1722         if (rw && !strchr(zh->user_perm, 'w'))
1723         {
1724             zebra_setError(
1725                 zh,
1726                 YAZ_BIB1_ES_PERMISSION_DENIED_ON_ES_CANNOT_MODIFY_OR_DELETE,
1727                 0);
1728             return ZEBRA_FAIL;
1729         }
1730     }
1731
1732     assert(zh->res);
1733     if (rw)
1734     {
1735         int seqno = 0;
1736         char val = '?';
1737         const char *rval = 0;
1738
1739         (zh->trans_no++);
1740         if (zh->trans_w_no)
1741         {
1742             read_res_for_transaction(zh);
1743             return 0;
1744         }
1745         if (zh->trans_no != 1)
1746         {
1747             zebra_setError(zh, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR,
1748                            "zebra_begin_trans: no write trans within read");
1749             return ZEBRA_FAIL;
1750         }
1751         if (zh->reg)
1752         {
1753             resultSetInvalidate(zh);
1754             zebra_register_close(zh->service, zh->reg);
1755         }
1756         zh->trans_w_no = zh->trans_no;
1757
1758         zh->records_inserted = 0;
1759         zh->records_updated = 0;
1760         zh->records_deleted = 0;
1761         zh->records_processed = 0;
1762         zh->records_skipped = 0;
1763
1764 #if HAVE_SYS_TIMES_H
1765         times(&zh->tms1);
1766 #endif
1767         /* lock */
1768         if (zh->shadow_enable)
1769             rval = res_get(zh->res, "shadow");
1770
1771         if (rval)
1772         {
1773             zebra_lock_r(zh->lock_normal);
1774             zebra_lock_w(zh->lock_shadow);
1775         }
1776         else
1777         {
1778             zebra_lock_w(zh->lock_normal);
1779             zebra_lock_w(zh->lock_shadow);
1780         }
1781         zebra_get_state(zh, &val, &seqno);
1782         if (val != 'o')
1783         {
1784             /* either we didn't finish commit or shadow is dirty */
1785             if (!rval)
1786             {
1787                 yaz_log(YLOG_WARN, "previous transaction did not finish "
1788                         "(shadow disabled)");
1789             }
1790             zebra_unlock(zh->lock_shadow);
1791             zebra_unlock(zh->lock_normal);
1792             if (zebra_commit(zh))
1793             {
1794                 zh->trans_no--;
1795                 zh->trans_w_no = 0;
1796                 return ZEBRA_FAIL;
1797             }
1798             if (rval)
1799             {
1800                 zebra_lock_r(zh->lock_normal);
1801                 zebra_lock_w(zh->lock_shadow);
1802             }
1803             else
1804             {
1805                 zebra_lock_w(zh->lock_normal);
1806                 zebra_lock_w(zh->lock_shadow);
1807             }
1808         }
1809
1810         zebra_set_state(zh, 'd', seqno);
1811
1812         zh->reg = zebra_register_open(zh->service, zh->reg_name,
1813                                       1, rval ? 1 : 0, zh->res,
1814                                       zh->path_reg);
1815         if (zh->reg)
1816             zh->reg->seqno = seqno;
1817         else
1818         {
1819             zebra_set_state(zh, 'o', seqno);
1820
1821             zebra_unlock(zh->lock_shadow);
1822             zebra_unlock(zh->lock_normal);
1823
1824             zh->trans_no--;
1825             zh->trans_w_no = 0;
1826
1827             zebra_setError(zh, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR,
1828                            "zebra_begin_trans: cannot open register");
1829             yaz_log(YLOG_FATAL, "%s", zh->errString);
1830             return ZEBRA_FAIL;
1831         }
1832         zebraExplain_curDatabase(zh->reg->zei, zh->basenames[0]);
1833     }
1834     else
1835     {
1836         int dirty = 0;
1837         char val;
1838         int seqno;
1839
1840         (zh->trans_no)++;
1841
1842         if (zh->trans_no != 1)
1843         {
1844             return zebra_flush_reg(zh);
1845         }
1846 #if HAVE_SYS_TIMES_H
1847         times(&zh->tms1);
1848 #endif
1849         if (!zh->res)
1850         {
1851             (zh->trans_no)--;
1852             zh->errCode = YAZ_BIB1_DATABASE_UNAVAILABLE;
1853             return ZEBRA_FAIL;
1854         }
1855         if (!zh->lock_normal || !zh->lock_shadow)
1856         {
1857             (zh->trans_no)--;
1858             zh->errCode = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
1859             return ZEBRA_FAIL;
1860         }
1861         zebra_get_state(zh, &val, &seqno);
1862         if (val == 'd')
1863             val = 'o';
1864
1865         if (!zh->reg)
1866             dirty = 1;
1867         else if (seqno != zh->reg->seqno)
1868         {
1869             yaz_log(YLOG_DEBUG, "reopen seqno cur/old %d/%d",
1870                     seqno, zh->reg->seqno);
1871             dirty = 1;
1872         }
1873         else if (zh->reg->last_val != val)
1874         {
1875             yaz_log(YLOG_DEBUG, "reopen last cur/old %d/%d",
1876                     val, zh->reg->last_val);
1877             dirty = 1;
1878         }
1879         if (!dirty)
1880             return ZEBRA_OK;
1881
1882         if (val == 'c')
1883             zebra_lock_r(zh->lock_shadow);
1884         else
1885             zebra_lock_r(zh->lock_normal);
1886
1887         if (zh->reg)
1888         {
1889             resultSetInvalidate(zh);
1890             zebra_register_close(zh->service, zh->reg);
1891         }
1892         zh->reg = zebra_register_open(zh->service, zh->reg_name,
1893                                       0, val == 'c' ? 1 : 0,
1894                                       zh->res, zh->path_reg);
1895         if (!zh->reg)
1896         {
1897             zebra_unlock(zh->lock_normal);
1898             zebra_unlock(zh->lock_shadow);
1899             zh->trans_no--;
1900             zh->errCode = YAZ_BIB1_DATABASE_UNAVAILABLE;
1901             return ZEBRA_FAIL;
1902         }
1903         zh->reg->last_val = val;
1904         zh->reg->seqno = seqno;
1905     }
1906     read_res_for_transaction(zh);
1907     return ZEBRA_OK;
1908 }
1909
1910 ZEBRA_RES zebra_end_trans(ZebraHandle zh)
1911 {
1912     ZebraTransactionStatus dummy;
1913
1914     yaz_log(log_level, "zebra_end_trans");
1915     ZEBRA_CHECK_HANDLE(zh);
1916     return zebra_end_transaction(zh, &dummy);
1917 }
1918
1919 ZEBRA_RES zebra_end_transaction(ZebraHandle zh, ZebraTransactionStatus *status)
1920 {
1921     char val;
1922     int seqno;
1923     const char *rval;
1924
1925     ZEBRA_CHECK_HANDLE(zh);
1926
1927     assert(status);
1928     yaz_log(log_level, "zebra_end_transaction");
1929
1930     status->processed = 0;
1931     status->inserted  = 0;
1932     status->updated   = 0;
1933     status->deleted   = 0;
1934     status->utime     = 0;
1935     status->stime     = 0;
1936
1937     if (!zh->res || !zh->reg)
1938     {
1939         zebra_setError(zh, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR,
1940                        "zebra_end_trans: no open transaction");
1941         return ZEBRA_FAIL;
1942     }
1943     if (zh->trans_no != zh->trans_w_no)
1944     {
1945         zh->trans_no--;
1946         if (zh->trans_no != 0)
1947             return ZEBRA_OK;
1948
1949         /* release read lock */
1950
1951         zebra_unlock(zh->lock_normal);
1952         zebra_unlock(zh->lock_shadow);
1953     }
1954     else
1955     {   /* release write lock */
1956         zh->trans_no--;
1957         zh->trans_w_no = 0;
1958
1959         yaz_log(YLOG_DEBUG, "zebra_end_trans");
1960         rval = res_get(zh->res, "shadow");
1961
1962         zebraExplain_runNumberIncrement(zh->reg->zei, 1);
1963
1964         zebra_flush_reg(zh);
1965
1966         resultSetInvalidate(zh);
1967
1968         zebra_register_close(zh->service, zh->reg);
1969         zh->reg = 0;
1970
1971         yaz_log(YLOG_LOG, "Records: "ZINT_FORMAT" i/u/d "
1972                 ZINT_FORMAT"/"ZINT_FORMAT"/"ZINT_FORMAT,
1973                 zh->records_processed, zh->records_inserted,
1974                 zh->records_updated, zh->records_deleted);
1975
1976         status->processed = zh->records_processed;
1977         status->inserted = zh->records_inserted;
1978         status->updated = zh->records_updated;
1979         status->deleted = zh->records_deleted;
1980
1981         zebra_get_state(zh, &val, &seqno);
1982         if (val != 'd')
1983         {
1984             BFiles bfs = bfs_create(rval, zh->path_reg);
1985             bf_commitClean(bfs, rval);
1986             bfs_destroy(bfs);
1987         }
1988         if (!rval)
1989             seqno++;
1990         zebra_set_state(zh, 'o', seqno);
1991         zebra_unlock(zh->lock_shadow);
1992         zebra_unlock(zh->lock_normal);
1993
1994     }
1995 #if HAVE_SYS_TIMES_H
1996     times(&zh->tms2);
1997     yaz_log(log_level, "user/system: %ld/%ld",
1998             (long) (zh->tms2.tms_utime - zh->tms1.tms_utime),
1999             (long) (zh->tms2.tms_stime - zh->tms1.tms_stime));
2000
2001     status->utime = (long) (zh->tms2.tms_utime - zh->tms1.tms_utime);
2002     status->stime = (long) (zh->tms2.tms_stime - zh->tms1.tms_stime);
2003 #endif
2004     return ZEBRA_OK;
2005 }
2006
2007 ZEBRA_RES zebra_repository_update(ZebraHandle zh, const char *path)
2008 {
2009     return zebra_repository_index(zh, path, action_update);
2010 }
2011
2012 ZEBRA_RES zebra_repository_delete(ZebraHandle zh, const char *path)
2013 {
2014     return zebra_repository_index(zh, path, action_delete);
2015 }
2016
2017 ZEBRA_RES zebra_repository_index(ZebraHandle zh, const char *path,
2018                                  enum zebra_recctrl_action_t action)
2019 {
2020     ASSERTZH;
2021     assert(path);
2022
2023     if (action == action_update)
2024         yaz_log(log_level, "updating %s", path);
2025     else if (action == action_delete)
2026         yaz_log(log_level, "deleting %s", path);
2027     else if (action == action_a_delete)
2028         yaz_log(log_level, "attempt deleting %s", path);
2029     else
2030         yaz_log(log_level, "update action=%d", (int) action);
2031
2032     if (zh->m_record_id && !strcmp(zh->m_record_id, "file"))
2033         return zebra_update_file_match(zh, path);
2034     else
2035         return zebra_update_from_path(zh, path, action);
2036 }
2037
2038 ZEBRA_RES zebra_repository_show(ZebraHandle zh, const char *path)
2039 {
2040     ASSERTZH;
2041     assert(path);
2042     yaz_log(log_level, "zebra_repository_show");
2043     repositoryShow(zh, path);
2044     return ZEBRA_OK;
2045 }
2046
2047 static ZEBRA_RES zebra_commit_ex(ZebraHandle zh, int clean_only)
2048 {
2049     int seqno;
2050     char val;
2051     const char *rval;
2052     BFiles bfs;
2053     ZEBRA_RES res = ZEBRA_OK;
2054
2055     ASSERTZH;
2056
2057     yaz_log(log_level, "zebra_commit_ex clean_only=%d", clean_only);
2058     zebra_select_default_database(zh);
2059     if (!zh->res)
2060     {
2061         zh->errCode = YAZ_BIB1_DATABASE_UNAVAILABLE;
2062         return ZEBRA_FAIL;
2063     }
2064     rval = res_get(zh->res, "shadow");
2065     if (!rval)
2066     {
2067         yaz_log(YLOG_WARN, "Cannot perform commit - No shadow area defined");
2068         return ZEBRA_OK;
2069     }
2070
2071     zebra_lock_w(zh->lock_normal);
2072     zebra_lock_r(zh->lock_shadow);
2073
2074     bfs = bfs_create(res_get(zh->res, "register"), zh->path_reg);
2075     if (!bfs)
2076     {
2077         zebra_unlock(zh->lock_shadow);
2078         zebra_unlock(zh->lock_normal);
2079         return ZEBRA_FAIL;
2080     }
2081     zebra_get_state(zh, &val, &seqno);
2082
2083     if (val == 'd')
2084     {
2085         /* shadow area is dirty and so we must throw it away */
2086         yaz_log(YLOG_WARN, "previous transaction didn't reach commit");
2087         clean_only = 1;
2088     }
2089     else if (val == 'c')
2090     {
2091         /* commit has started. We can not remove it anymore */
2092         clean_only = 0;
2093     }
2094
2095     if (rval && *rval)
2096         bf_cache(bfs, rval);
2097     if (bf_commitExists(bfs))
2098     {
2099         if (clean_only)
2100             zebra_set_state(zh, 'd', seqno);
2101         else
2102         {
2103             zebra_set_state(zh, 'c', seqno);
2104
2105             yaz_log(log_level, "commit start");
2106             if (bf_commitExec(bfs))
2107                 res = ZEBRA_FAIL;
2108         }
2109         if (res == ZEBRA_OK)
2110         {
2111             seqno++;
2112             zebra_set_state(zh, 'o', seqno);
2113
2114             zebra_unlock(zh->lock_shadow);
2115             zebra_unlock(zh->lock_normal);
2116
2117             zebra_lock_w(zh->lock_shadow);
2118             bf_commitClean(bfs, rval);
2119             zebra_unlock(zh->lock_shadow);
2120         }
2121         else
2122         {
2123             zebra_unlock(zh->lock_shadow);
2124             zebra_unlock(zh->lock_normal);
2125             yaz_log(YLOG_WARN, "zebra_commit: failed");
2126         }
2127     }
2128     else
2129     {
2130         zebra_unlock(zh->lock_shadow);
2131         zebra_unlock(zh->lock_normal);
2132         yaz_log(log_level, "nothing to commit");
2133     }
2134     bfs_destroy(bfs);
2135
2136     return res;
2137 }
2138
2139 ZEBRA_RES zebra_clean(ZebraHandle zh)
2140 {
2141     yaz_log(log_level, "zebra_clean");
2142     ZEBRA_CHECK_HANDLE(zh);
2143     return zebra_commit_ex(zh, 1);
2144 }
2145
2146 ZEBRA_RES zebra_commit(ZebraHandle zh)
2147 {
2148     yaz_log(log_level, "zebra_commit");
2149     ZEBRA_CHECK_HANDLE(zh);
2150     return zebra_commit_ex(zh, 0);
2151 }
2152
2153
2154 ZEBRA_RES zebra_init(ZebraHandle zh)
2155 {
2156     const char *rval;
2157     BFiles bfs = 0;
2158
2159     yaz_log(log_level, "zebra_init");
2160
2161     ZEBRA_CHECK_HANDLE(zh);
2162
2163     zebra_select_default_database(zh);
2164     if (!zh->res)
2165     {
2166         zebra_setError(zh, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR,
2167                        "cannot select default database");
2168         return ZEBRA_FAIL;
2169     }
2170     rval = res_get(zh->res, "shadow");
2171
2172     bfs = bfs_create(res_get(zh->res, "register"), zh->path_reg);
2173     if (!bfs)
2174     {
2175         zebra_setError(zh, YAZ_BIB1_TEMPORARY_SYSTEM_ERROR, "bfs_create");
2176         return ZEBRA_FAIL;
2177     }
2178     if (rval && *rval)
2179         bf_cache(bfs, rval);
2180
2181     bf_reset(bfs);
2182     bfs_destroy(bfs);
2183     zebra_set_state(zh, 'o', 0);
2184     return ZEBRA_OK;
2185 }
2186
2187 ZEBRA_RES zebra_compact(ZebraHandle zh)
2188 {
2189     BFiles bfs;
2190
2191     yaz_log(log_level, "zebra_compact");
2192     ZEBRA_CHECK_HANDLE(zh);
2193     if (!zh->res)
2194     {
2195         zh->errCode = YAZ_BIB1_DATABASE_UNAVAILABLE;
2196         return ZEBRA_FAIL;
2197     }
2198     bfs = bfs_create(res_get(zh->res, "register"), zh->path_reg);
2199     inv_compact(bfs);
2200     bfs_destroy(bfs);
2201     return ZEBRA_OK;
2202 }
2203
2204 #define ZEBRA_CHECK_DICT 1
2205 #define ZEBRA_CHECK_ISAM 2
2206
2207 static ZEBRA_RES zebra_record_check(ZebraHandle zh, Record rec,
2208                                     zint *no_keys, int message_limit,
2209                                     unsigned flags,
2210                                     zint *no_long_dict_entries,
2211                                     zint *no_failed_dict_lookups,
2212                                     zint *no_invalid_keys,
2213                                     zint *no_invalid_dict_infos,
2214                                     zint *no_invalid_isam_entries)
2215 {
2216     ZEBRA_RES res = ZEBRA_OK;
2217     zebra_rec_keys_t keys = zebra_rec_keys_open();
2218     zebra_rec_keys_set_buf(keys, rec->info[recInfo_delKeys],
2219                            rec->size[recInfo_delKeys], 0);
2220
2221     *no_keys = 0;
2222     if (!zebra_rec_keys_rewind(keys))
2223     {
2224         ;
2225     }
2226     else
2227     {
2228         size_t slen;
2229         const char *str;
2230         struct it_key key_in;
2231         NMEM nmem = nmem_create();
2232
2233         while (zebra_rec_keys_read(keys, &str, &slen, &key_in))
2234         {
2235             int do_fail = 0;
2236             int ord = CAST_ZINT_TO_INT(key_in.mem[0]);
2237             char ord_buf[IT_MAX_WORD+20];
2238             int ord_len = key_SU_encode(ord, ord_buf);
2239             char *info = 0;
2240
2241             (*no_keys)++;
2242
2243             if (key_in.len < 2 || key_in.len > IT_KEY_LEVEL_MAX)
2244             {
2245                 res = ZEBRA_FAIL;
2246                 (*no_invalid_keys)++;
2247                 if (*no_invalid_keys <= message_limit)
2248                 {
2249                     do_fail = 1;
2250                     yaz_log(YLOG_WARN, "Record " ZINT_FORMAT
2251                             ": unexpected key length %d",
2252                             rec->sysno, key_in.len);
2253                 }
2254             }
2255             if (ord_len + slen >= sizeof(ord_buf)-1)
2256             {
2257                 res = ZEBRA_FAIL;
2258                 (*no_long_dict_entries)++;
2259                 if (*no_long_dict_entries <= message_limit)
2260                 {
2261                     do_fail = 1;
2262                     /* so bad it can not fit into our ord_buf */
2263                     yaz_log(YLOG_WARN, "Record " ZINT_FORMAT
2264                             ": long dictionary entry %d + %d",
2265                             rec->sysno, ord_len, (int) slen);
2266                 }
2267                 continue;
2268             }
2269             memcpy(ord_buf + ord_len, str, slen);
2270             ord_buf[ord_len + slen] = '\0';
2271             if (ord_len + slen >= IT_MAX_WORD)
2272             {
2273                 res = ZEBRA_FAIL;
2274                 (*no_long_dict_entries)++;
2275                 if (*no_long_dict_entries <= message_limit)
2276                 {
2277                     do_fail = 1;
2278                     yaz_log(YLOG_WARN, "Record " ZINT_FORMAT
2279                             ": long dictionary entry %d + %d",
2280                             rec->sysno, (int) ord_len, (int) slen);
2281                 }
2282             }
2283             if ((flags & ZEBRA_CHECK_DICT) == 0)
2284                 continue;
2285             info = dict_lookup(zh->reg->dict, ord_buf);
2286             if (!info)
2287             {
2288                 res = ZEBRA_FAIL;
2289                 (*no_failed_dict_lookups)++;
2290                 if (*no_failed_dict_lookups <= message_limit)
2291                 {
2292                     do_fail = 1;
2293                     yaz_log(YLOG_WARN, "Record " ZINT_FORMAT
2294                             ": term do not exist in dictionary", rec->sysno);
2295                 }
2296             }
2297             else if (flags & ZEBRA_CHECK_ISAM)
2298             {
2299                 ISAM_P pos;
2300
2301                 if (*info != sizeof(pos))
2302                 {
2303                     res = ZEBRA_FAIL;
2304                     (*no_invalid_dict_infos)++;
2305                     if (*no_invalid_dict_infos <= message_limit)
2306                     {
2307                         do_fail = 1;
2308                         yaz_log(YLOG_WARN, "Record " ZINT_FORMAT
2309                                 ": long dictionary entry %d + %d",
2310                                 rec->sysno, (int) ord_len, (int) slen);
2311                     }
2312                 }
2313                 else
2314                 {
2315                     int scope = 1;
2316                     memcpy(&pos, info+1, sizeof(pos));
2317                     if (zh->reg->isamb)
2318                     {
2319                         ISAMB_PP ispt = isamb_pp_open(zh->reg->isamb, pos,
2320                                                       scope);
2321                         if (!ispt)
2322                         {
2323                             res = ZEBRA_FAIL;
2324                             (*no_invalid_isam_entries)++;
2325                             if (*no_invalid_isam_entries <= message_limit)
2326                             {
2327                                 do_fail = 1;
2328                                 yaz_log(YLOG_WARN, "Record " ZINT_FORMAT
2329                                         ": isamb_pp_open entry " ZINT_FORMAT
2330                                         " not found",
2331                                         rec->sysno, pos);
2332                             }
2333                         }
2334                         else if (zh->m_staticrank)
2335                         {
2336                             isamb_pp_close(ispt);
2337                         }
2338                         else
2339                         {
2340                             struct it_key until_key;
2341                             struct it_key isam_key;
2342                             int r;
2343                             int i = 0;
2344
2345                             until_key.len = key_in.len - 1;
2346                             for (i = 0; i < until_key.len; i++)
2347                                 until_key.mem[i] = key_in.mem[i+1];
2348
2349                             if (until_key.mem[0] == 0)
2350                                 until_key.mem[0] = rec->sysno;
2351                             r = isamb_pp_forward(ispt, &isam_key, &until_key);
2352                             if (r != 1)
2353                             {
2354                                 res = ZEBRA_FAIL;
2355                                 (*no_invalid_isam_entries)++;
2356                                 if (*no_invalid_isam_entries <= message_limit)
2357                                 {
2358                                     do_fail = 1;
2359                                     yaz_log(YLOG_WARN, "Record " ZINT_FORMAT
2360                                             ": isamb_pp_forward " ZINT_FORMAT
2361                                             " returned no entry",
2362                                             rec->sysno, pos);
2363                                 }
2364                             }
2365                             else
2366                             {
2367                                 int cmp = key_compare(&until_key, &isam_key);
2368                                 if (cmp != 0)
2369                                 {
2370                                     res = ZEBRA_FAIL;
2371                                     (*no_invalid_isam_entries)++;
2372                                     if (*no_invalid_isam_entries
2373                                         <= message_limit)
2374                                     {
2375                                         do_fail = 1;
2376                                         yaz_log(YLOG_WARN, "Record "
2377                                                 ZINT_FORMAT
2378                                                 ": isamb_pp_forward "
2379                                                 ZINT_FORMAT
2380                                                 " returned different entry",
2381                                                 rec->sysno, pos);
2382
2383                                         key_logdump_txt(YLOG_LOG,
2384                                                         &until_key,
2385                                                         "until");
2386
2387                                         key_logdump_txt(YLOG_LOG,
2388                                                         &isam_key,
2389                                                         "isam");
2390
2391                                     }
2392                                 }
2393                             }
2394                             isamb_pp_close(ispt);
2395                         }
2396
2397                     }
2398                 }
2399             }
2400             if (do_fail)
2401             {
2402                 zebra_it_key_str_dump(zh, &key_in, str,
2403                                       slen, nmem, YLOG_LOG);
2404                 nmem_reset(nmem);
2405             }
2406         }
2407         nmem_destroy(nmem);
2408     }
2409     zebra_rec_keys_close(keys);
2410     return res;
2411 }
2412
2413 ZEBRA_RES zebra_register_check(ZebraHandle zh, const char *spec)
2414 {
2415     ZEBRA_RES res = ZEBRA_FAIL;
2416     unsigned flags = 0;
2417     int message_limit = 10;
2418
2419     if (!spec || *spec == '\0'
2420         || !strcmp(spec, "dict") || !strcmp(spec, "default"))
2421         flags = ZEBRA_CHECK_DICT;
2422     else if (!strcmp(spec, "isam") || !strcmp(spec, "full"))
2423         flags = ZEBRA_CHECK_DICT|ZEBRA_CHECK_ISAM;
2424     else if (!strcmp(spec, "quick"))
2425         flags = 0;
2426     else
2427         return ZEBRA_FAIL;
2428
2429     yaz_log(YLOG_LOG, "zebra_register_check begin flags=%u message_limit=%d",
2430             flags, message_limit);
2431     if (zebra_begin_read(zh) == ZEBRA_OK)
2432     {
2433         zint no_records_total = 0;
2434         zint no_records_fail = 0;
2435         zint total_keys = 0;
2436
2437         if (zh->reg)
2438         {
2439             Record rec = rec_get_root(zh->reg->records);
2440
2441             zint no_long_dict_entries = 0;
2442             zint no_failed_dict_lookups = 0;
2443             zint no_invalid_keys = 0;
2444             zint no_invalid_dict_infos = 0;
2445             zint no_invalid_isam_entries = 0;
2446
2447             res = ZEBRA_OK;
2448             while (rec)
2449             {
2450                 Record r1;
2451                 zint no_keys;
2452
2453                 if (zebra_record_check(zh, rec, &no_keys, message_limit,
2454                                        flags,
2455                                        &no_long_dict_entries,
2456                                        &no_failed_dict_lookups,
2457                                        &no_invalid_keys,
2458                                        &no_invalid_dict_infos,
2459                                        &no_invalid_isam_entries
2460                         )
2461                     != ZEBRA_OK)
2462                 {
2463                     res = ZEBRA_FAIL;
2464                     no_records_fail++;
2465                 }
2466
2467                 r1 = rec_get_next(zh->reg->records, rec);
2468                 rec_free(&rec);
2469                 rec = r1;
2470                 no_records_total++;
2471                 total_keys += no_keys;
2472             }
2473             yaz_log(YLOG_LOG, "records total:        " ZINT_FORMAT,
2474                     no_records_total);
2475             yaz_log(YLOG_LOG, "records fail:         " ZINT_FORMAT,
2476                     no_records_fail);
2477             yaz_log(YLOG_LOG, "total keys:           " ZINT_FORMAT,
2478                     total_keys);
2479             yaz_log(YLOG_LOG, "long dict entries:    " ZINT_FORMAT,
2480                     no_long_dict_entries);
2481             if (flags & ZEBRA_CHECK_DICT)
2482             {
2483                 yaz_log(YLOG_LOG, "failed dict lookups:  " ZINT_FORMAT,
2484                         no_failed_dict_lookups);
2485                 yaz_log(YLOG_LOG, "invalid dict infos:   " ZINT_FORMAT,
2486                         no_invalid_dict_infos);
2487             }
2488             if (flags & ZEBRA_CHECK_ISAM)
2489                 yaz_log(YLOG_LOG, "invalid isam entries: " ZINT_FORMAT,
2490                         no_invalid_isam_entries);
2491         }
2492         zebra_end_read(zh);
2493     }
2494     yaz_log(YLOG_LOG, "zebra_register_check end ret=%d", res);
2495     return res;
2496 }
2497
2498 void zebra_result(ZebraHandle zh, int *code, char **addinfo)
2499 {
2500     yaz_log(log_level, "zebra_result");
2501     if (zh)
2502     {
2503         *code = zh->errCode;
2504         *addinfo = zh->errString;
2505     }
2506     else
2507     {
2508         *code = YAZ_BIB1_TEMPORARY_SYSTEM_ERROR;
2509         *addinfo ="ZebraHandle is NULL";
2510     }
2511 }
2512
2513 void zebra_shadow_enable(ZebraHandle zh, int value)
2514 {
2515     ASSERTZH;
2516     yaz_log(log_level, "zebra_shadow_enable");
2517     zh->shadow_enable = value;
2518 }
2519
2520 ZEBRA_RES zebra_octet_term_encoding(ZebraHandle zh, const char *encoding)
2521 {
2522     yaz_log(log_level, "zebra_octet_term_encoding %s", encoding);
2523     ZEBRA_CHECK_HANDLE(zh);
2524     assert(encoding);
2525
2526     if (zh->iconv_to_utf8 != 0)
2527         yaz_iconv_close(zh->iconv_to_utf8);
2528     if (zh->iconv_from_utf8 != 0)
2529         yaz_iconv_close(zh->iconv_from_utf8);
2530
2531     zh->iconv_to_utf8 =
2532         yaz_iconv_open("UTF-8", encoding);
2533     if (zh->iconv_to_utf8 == 0)
2534         yaz_log(YLOG_WARN, "iconv: %s to UTF-8 unsupported", encoding);
2535     zh->iconv_from_utf8 =
2536         yaz_iconv_open(encoding, "UTF-8");
2537     if (zh->iconv_to_utf8 == 0)
2538         yaz_log(YLOG_WARN, "iconv: UTF-8 to %s unsupported", encoding);
2539
2540     return ZEBRA_OK;
2541 }
2542
2543 ZEBRA_RES zebra_record_encoding(ZebraHandle zh, const char *encoding)
2544 {
2545     yaz_log(log_level, "zebra_record_encoding");
2546     ZEBRA_CHECK_HANDLE(zh);
2547     xfree(zh->record_encoding);
2548     zh->record_encoding = 0;
2549     if (encoding)
2550         zh->record_encoding = xstrdup(encoding);
2551     return ZEBRA_OK;
2552 }
2553
2554 void zebra_set_resource(ZebraHandle zh, const char *name, const char *value)
2555 {
2556     assert(name);
2557     assert(value);
2558     yaz_log(log_level, "zebra_set_resource %s:%s", name, value);
2559     ASSERTZH;
2560     res_set(zh->res, name, value);
2561 }
2562
2563 const char *zebra_get_resource(ZebraHandle zh,
2564                                const char *name, const char *defaultvalue)
2565 {
2566     const char *v;
2567     ASSERTZH;
2568     assert(name);
2569     v = res_get_def(zh->res, name,(char *)defaultvalue);
2570     yaz_log(log_level, "zebra_get_resource %s:%s", name, v);
2571     return v;
2572 }
2573
2574 /* moved from zebra_api_ext.c by pop */
2575 /* FIXME: Should this really be public??? -Heikki */
2576
2577 int zebra_trans_no(ZebraHandle zh)
2578 {
2579     yaz_log(log_level, "zebra_trans_no");
2580     ASSERTZH;
2581     return zh->trans_no;
2582 }
2583
2584 int zebra_get_shadow_enable(ZebraHandle zh)
2585 {
2586     yaz_log(log_level, "zebra_get_shadow_enable");
2587     ASSERTZH;
2588     return zh->shadow_enable;
2589 }
2590
2591 void zebra_set_shadow_enable(ZebraHandle zh, int value)
2592 {
2593     yaz_log(log_level, "zebra_set_shadow_enable %d",value);
2594     ASSERTZH;
2595     zh->shadow_enable = value;
2596 }
2597
2598 ZEBRA_RES zebra_add_record(ZebraHandle zh,
2599                            const char *buf, int buf_size)
2600 {
2601     return zebra_update_record(zh, action_update,
2602                                0 /* record type */,
2603                                0 /* sysno */ ,
2604                                0 /* match */,
2605                                0 /* fname */,
2606                                buf, buf_size);
2607 }
2608
2609 ZEBRA_RES zebra_update_record(ZebraHandle zh,
2610                               enum zebra_recctrl_action_t action,
2611                               const char *recordType,
2612                               zint *sysno, const char *match,
2613                               const char *fname,
2614                               const char *buf, int buf_size)
2615 {
2616     ZEBRA_RES res;
2617
2618     ZEBRA_CHECK_HANDLE(zh);
2619
2620     assert(buf);
2621
2622     yaz_log(log_level, "zebra_update_record");
2623     if (sysno)
2624         yaz_log(log_level, " sysno=" ZINT_FORMAT, *sysno);
2625
2626     if (buf_size < 1)
2627         buf_size = strlen(buf);
2628
2629     if (zebra_begin_trans(zh, 1) == ZEBRA_FAIL)
2630         return ZEBRA_FAIL;
2631     res = zebra_buffer_extract_record(zh, buf, buf_size,
2632                                       action,
2633                                       recordType,
2634                                       sysno,
2635                                       match,
2636                                       fname);
2637     if (zebra_end_trans(zh) != ZEBRA_OK)
2638     {
2639         yaz_log(YLOG_WARN, "zebra_end_trans failed");
2640         res = ZEBRA_FAIL;
2641     }
2642     return res;
2643 }
2644
2645 /* ---------------------------------------------------------------------------
2646    Searching
2647 */
2648
2649 ZEBRA_RES zebra_search_PQF(ZebraHandle zh, const char *pqf_query,
2650                            const char *setname, zint *hits)
2651 {
2652     zint lhits = 0;
2653     ZEBRA_RES res = ZEBRA_OK;
2654     Z_RPNQuery *query;
2655     ODR odr;
2656
2657
2658     ZEBRA_CHECK_HANDLE(zh);
2659
2660     odr = odr_createmem(ODR_ENCODE);
2661
2662     assert(pqf_query);
2663     assert(setname);
2664
2665     yaz_log(log_level, "zebra_search_PQF s=%s q=%s", setname, pqf_query);
2666
2667     query = p_query_rpn(odr, pqf_query);
2668
2669     if (!query)
2670     {
2671         yaz_log(YLOG_WARN, "bad query %s\n", pqf_query);
2672         zh->errCode = YAZ_BIB1_MALFORMED_QUERY;
2673         res = ZEBRA_FAIL;
2674     }
2675     else
2676         res = zebra_search_RPN(zh, odr, query, setname, &lhits);
2677
2678     odr_destroy(odr);
2679
2680     yaz_log(log_level, "Hits: " ZINT_FORMAT, lhits);
2681
2682     if (hits)
2683         *hits = lhits;
2684
2685     return res;
2686 }
2687
2688 /* ---------------------------------------------------------------------------
2689    Sort - a simplified interface, with optional read locks.
2690 */
2691 int zebra_sort_by_specstr(ZebraHandle zh, ODR stream,
2692                           const char *sort_spec,
2693                           const char *output_setname,
2694                           const char **input_setnames)
2695 {
2696     int num_input_setnames = 0;
2697     int sort_status = 0;
2698     Z_SortKeySpecList *sort_sequence;
2699
2700     ZEBRA_CHECK_HANDLE(zh);
2701     assert(stream);
2702     assert(sort_spec);
2703     assert(output_setname);
2704     assert(input_setnames);
2705     sort_sequence = yaz_sort_spec(stream, sort_spec);
2706     yaz_log(log_level, "sort (FIXME) ");
2707     if (!sort_sequence)
2708     {
2709         yaz_log(YLOG_WARN, "invalid sort specs '%s'", sort_spec);
2710         zh->errCode = YAZ_BIB1_CANNOT_SORT_ACCORDING_TO_SEQUENCE;
2711         return -1;
2712     }
2713
2714     /* we can do this, since the perl typemap code for char** will
2715        put a NULL at the end of list */
2716     while (input_setnames[num_input_setnames]) num_input_setnames++;
2717
2718     if (zebra_begin_read(zh))
2719         return -1;
2720
2721     resultSetSort(zh, stream->mem, num_input_setnames, input_setnames,
2722                   output_setname, sort_sequence, &sort_status);
2723
2724     zebra_end_read(zh);
2725     return sort_status;
2726 }
2727
2728 /* ---------------------------------------------------------------------------
2729    Get BFS for Zebra system (to make alternative storage methods)
2730 */
2731 struct BFiles_struct *zebra_get_bfs(ZebraHandle zh)
2732 {
2733     if (zh && zh->reg)
2734         return zh->reg->bfs;
2735     return 0;
2736 }
2737
2738
2739 /* ---------------------------------------------------------------------------
2740    Set limit for search/scan
2741 */
2742 ZEBRA_RES zebra_set_limit(ZebraHandle zh, int complement_flag, zint *ids)
2743 {
2744     ZEBRA_CHECK_HANDLE(zh);
2745     zebra_limit_destroy(zh->m_limit);
2746     zh->m_limit = zebra_limit_create(complement_flag, ids);
2747     return ZEBRA_OK;
2748 }
2749
2750 /*
2751   Set Error code + addinfo
2752 */
2753 void zebra_setError(ZebraHandle zh, int code, const char *addinfo)
2754 {
2755     if (!zh)
2756         return;
2757     zh->errCode = code;
2758     nmem_reset(zh->nmem_error);
2759     zh->errString = addinfo ? nmem_strdup(zh->nmem_error, addinfo) : 0;
2760 }
2761
2762 void zebra_setError_zint(ZebraHandle zh, int code, zint i)
2763 {
2764     char vstr[60];
2765     sprintf(vstr, ZINT_FORMAT, i);
2766
2767     zh->errCode = code;
2768     nmem_reset(zh->nmem_error);
2769     zh->errString = nmem_strdup(zh->nmem_error, vstr);
2770 }
2771
2772 void zebra_lock_prefix(Res res, char *path)
2773 {
2774     const char *lock_dir = res_get_def(res, "lockDir", "");
2775
2776     strcpy(path, lock_dir);
2777     if (*path && path[strlen(path)-1] != '/')
2778         strcat(path, "/");
2779 }
2780
2781 /*
2782  * Local variables:
2783  * c-basic-offset: 4
2784  * c-file-style: "Stroustrup"
2785  * indent-tabs-mode: nil
2786  * End:
2787  * vim: shiftwidth=4 tabstop=8 expandtab
2788  */
2789