2 * $Id: dbif.c,v 1.13 2009-09-03 08:35:15 franklahm Exp $
4 * Copyright (C) Joerg Lenneis 2003
5 * Copyright (C) Frank Lahm 2009
6 * All Rights Reserved. See COPYING.
11 #endif /* HAVE_CONFIG_H */
16 #ifdef HAVE_SYS_TYPES_H
17 #include <sys/types.h>
18 #endif /* HAVE_SYS_TYPES_H */
20 #include <sys/types.h>
22 #include <sys/cdefs.h>
24 #include <atalk/logger.h>
30 #define DB_ERRLOGFILE "db_errlog"
32 static char *old_dbfiles[] = {"cnid.db", NULL};
35 static int upgrade_required()
41 for (i = 0; old_dbfiles[i] != NULL; i++) {
42 if ( !(stat(old_dbfiles[i], &st) < 0) ) {
46 if (errno != ENOENT) {
47 LOG(log_error, logtype_cnid, "cnid_open: Checking %s gave %s", old_dbfiles[i], strerror(errno));
55 int dbif_stamp(DBD *dbd, void *buffer, int size)
64 if ((cwd = open(".", O_RDONLY)) < 0) {
65 LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
69 /* chdir to db_envhome */
70 if ((chdir(dbd->db_envhome)) != 0) {
71 LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
75 if ((rc = stat(dbd->db_table[DBIF_CNID].name, &st)) < 0) {
76 LOG(log_error, logtype_cnid, "error stating database %s: %s", dbd->db_table[DBIF_CNID].name, db_strerror(rc));
79 memset(buffer, 0, size);
80 memcpy(buffer, &st.st_ctime, sizeof(st.st_ctime));
82 if ((fchdir(cwd)) != 0) {
83 LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
91 DBD *dbif_init(const char *envhome, const char *filename)
95 if ( NULL == (dbd = calloc(sizeof(DBD), 1)) )
98 /* filename == NULL means in memory db */
103 dbd->db_envhome = strdup(envhome);
104 if (NULL == dbd->db_envhome) {
109 dbd->db_filename = strdup(filename);
110 if (NULL == dbd->db_filename) {
111 free(dbd->db_envhome);
117 dbd->db_table[DBIF_CNID].name = "cnid2.db";
118 dbd->db_table[DBIF_IDX_DEVINO].name = "devino.db";
119 dbd->db_table[DBIF_IDX_DIDNAME].name = "didname.db";
121 dbd->db_table[DBIF_CNID].type = DB_BTREE;
122 dbd->db_table[DBIF_IDX_DEVINO].type = DB_BTREE;
123 dbd->db_table[DBIF_IDX_DIDNAME].type = DB_BTREE;
125 dbd->db_table[DBIF_CNID].openflags = DB_CREATE;
126 dbd->db_table[DBIF_IDX_DEVINO].openflags = DB_CREATE;
127 dbd->db_table[DBIF_IDX_DIDNAME].openflags = DB_CREATE;
133 We must open the db_env with an absolute pathname, as `dbd` keeps chdir'ing, which
134 breaks e.g. bdb logfile-rotation with relative pathnames.
135 But still we use relative paths with upgrade_required() and the DB_ERRLOGFILE
136 in order to avoid creating absolute paths by copying. Both have no problem with
139 int dbif_env_open(DBD *dbd, struct db_param *dbp, uint32_t dbenv_oflags)
142 char **logfiles = NULL;
146 if ((cwd = open(".", O_RDONLY)) < 0) {
147 LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
151 /* chdir to db_envhome. makes it easier checking for old db files and creating db_errlog file */
152 if ((chdir(dbd->db_envhome)) != 0) {
153 LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
157 /* Refuse to do anything if this is an old version of the CNID database */
158 if (upgrade_required()) {
159 LOG(log_error, logtype_cnid, "Found version 1 of the CNID database. Please upgrade to version 2");
163 if ((dbd->db_errlog = fopen(DB_ERRLOGFILE, "a")) == NULL)
164 LOG(log_warning, logtype_cnid, "error creating/opening DB errlogfile: %s", strerror(errno));
166 if ((fchdir(cwd)) != 0) {
167 LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
171 if ((ret = db_env_create(&dbd->db_env, 0))) {
172 LOG(log_error, logtype_cnid, "error creating DB environment: %s",
178 if (dbd->db_errlog != NULL) {
179 dbd->db_env->set_errfile(dbd->db_env, dbd->db_errlog);
180 dbd->db_env->set_msgfile(dbd->db_env, dbd->db_errlog);
183 if (dbenv_oflags & DB_RECOVER) {
184 dbd->db_env->set_verbose(dbd->db_env, DB_VERB_RECOVERY, 1);
185 /* Open the database for recovery using DB_PRIVATE option which is faster */
186 if ((ret = dbd->db_env->open(dbd->db_env, dbd->db_envhome, dbenv_oflags | DB_PRIVATE, 0))) {
187 LOG(log_error, logtype_cnid, "error opening DB environment: %s",
189 dbd->db_env->close(dbd->db_env, 0);
193 dbenv_oflags = (dbenv_oflags & ~DB_RECOVER);
195 if (dbd->db_errlog != NULL)
196 fflush(dbd->db_errlog);
198 if ((ret = dbd->db_env->close(dbd->db_env, 0))) {
199 LOG(log_error, logtype_cnid, "error closing DB environment after recovery: %s",
205 if ((ret = db_env_create(&dbd->db_env, 0))) {
206 LOG(log_error, logtype_cnid, "error creating DB environment after recovery: %s",
213 if ((ret = dbd->db_env->set_cachesize(dbd->db_env, 0, 1024 * dbp->cachesize, 0))) {
214 LOG(log_error, logtype_cnid, "error setting DB environment cachesize to %i: %s",
215 dbp->cachesize, db_strerror(ret));
216 dbd->db_env->close(dbd->db_env, 0);
221 if (dbd->db_errlog != NULL) {
222 dbd->db_env->set_errfile(dbd->db_env, dbd->db_errlog);
223 dbd->db_env->set_msgfile(dbd->db_env, dbd->db_errlog);
225 if ((ret = dbd->db_env->open(dbd->db_env, dbd->db_envhome, dbenv_oflags, 0))) {
226 LOG(log_error, logtype_cnid, "error opening DB environment after recovery: %s",
228 dbd->db_env->close(dbd->db_env, 0);
233 if ((ret = dbd->db_env->set_flags(dbd->db_env, DB_AUTO_COMMIT, 1))) {
234 LOG(log_error, logtype_cnid, "error setting DB_AUTO_COMMIT flag: %s",
236 dbd->db_env->close(dbd->db_env, 0);
241 if (dbp->logfile_autoremove) {
242 if (dbd->db_env->log_archive(dbd->db_env, &logfiles, 0)) {
243 LOG(log_error, logtype_cnid, "error getting list of stale logfiles: %s",
245 dbd->db_env->close(dbd->db_env, 0);
249 if (logfiles != NULL) {
250 for (file = logfiles; *file != NULL; file++) {
251 if (unlink(*file) < 0)
252 LOG(log_warning, logtype_cnid, "Error removing stale logfile %s: %s", *file, strerror(errno));
257 #if DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 7)
258 if ((ret = dbd->db_env->log_set_config(dbd->db_env, DB_LOG_AUTO_REMOVE, 1))) {
259 LOG(log_error, logtype_cnid, "error setting DB_LOG_AUTO_REMOVE flag: %s",
261 dbd->db_env->close(dbd->db_env, 0);
266 if ((ret = dbd->db_env->set_flags(dbd->db_env, DB_LOG_AUTOREMOVE, 1))) {
267 LOG(log_error, logtype_cnid, "error setting DB_LOG_AUTOREMOVE flag: %s",
269 dbd->db_env->close(dbd->db_env, 0);
279 /* --------------- */
280 int dbif_open(DBD *dbd, struct db_param *dbp _U_, int reindex)
287 /* Try to upgrade if it's a normal on-disk database */
288 if (dbd->db_envhome) {
290 if ((cwd = open(".", O_RDONLY)) < 0) {
291 LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
295 /* chdir to db_envhome. makes it easier checking for old db files and creating db_errlog file */
296 if ((chdir(dbd->db_envhome)) != 0) {
297 LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
301 if ((stat(dbd->db_filename, &st)) == 0) {
302 LOG(log_debug, logtype_cnid, "See if we can upgrade the CNID database");
303 if ((ret = db_create(&upgrade_db, dbd->db_env, 0))) {
304 LOG(log_error, logtype_cnid, "error creating handle for database: %s", db_strerror(ret));
307 if ((ret = upgrade_db->upgrade(upgrade_db, dbd->db_filename, 0))) {
308 LOG(log_error, logtype_cnid, "error upgarding database: %s", db_strerror(ret));
311 if ((ret = upgrade_db->close(upgrade_db, 0))) {
312 LOG(log_error, logtype_cnid, "error closing database: %s", db_strerror(ret));
315 if ((ret = dbd->db_env->txn_checkpoint(dbd->db_env, 0, 0, DB_FORCE))) {
316 LOG(log_error, logtype_cnid, "error forcing checkpoint: %s", db_strerror(ret));
321 if ((fchdir(cwd)) != 0) {
322 LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
327 /* Now open databases ... */
328 for (i = 0; i != DBIF_DB_CNT; i++) {
329 if ((ret = db_create(&dbd->db_table[i].db, dbd->db_env, 0))) {
330 LOG(log_error, logtype_cnid, "error creating handle for database %s: %s",
331 dbd->db_table[i].name, db_strerror(ret));
335 if (dbd->db_table[i].flags) {
336 if ((ret = dbd->db_table[i].db->set_flags(dbd->db_table[i].db,
337 dbd->db_table[i].flags))) {
338 LOG(log_error, logtype_cnid, "error setting flags for database %s: %s",
339 dbd->db_table[i].name, db_strerror(ret));
344 if (dbd->db_table[i].db->open(dbd->db_table[i].db,
347 dbd->db_table[i].name,
348 dbd->db_table[i].type,
349 dbd->db_table[i].openflags,
351 LOG(log_error, logtype_cnid, "Cant open database");
354 if (dbd->db_errlog != NULL)
355 dbd->db_table[i].db->set_errfile(dbd->db_table[i].db, dbd->db_errlog);
357 if (reindex && i > 0) {
358 LOG(log_info, logtype_cnid, "Truncating CNID index.");
359 if ((ret = dbd->db_table[i].db->truncate(dbd->db_table[i].db, NULL, &count, 0))) {
360 LOG(log_error, logtype_cnid, "error truncating database %s: %s",
361 dbd->db_table[i].name, db_strerror(ret));
367 /* TODO: Implement CNID DB versioning info on new databases. */
369 /* Associate the secondary with the primary. */
371 LOG(log_info, logtype_cnid, "Reindexing did/name index...");
372 if ((ret = dbd->db_table[0].db->associate(dbd->db_table[DBIF_CNID].db,
374 dbd->db_table[DBIF_IDX_DIDNAME].db,
376 (reindex) ? DB_CREATE : 0))
378 LOG(log_error, logtype_cnid, "Failed to associate didname database: %s",db_strerror(ret));
382 LOG(log_info, logtype_cnid, "... done.");
385 LOG(log_info, logtype_cnid, "Reindexing dev/ino index...");
386 if ((ret = dbd->db_table[0].db->associate(dbd->db_table[0].db,
388 dbd->db_table[DBIF_IDX_DEVINO].db,
390 (reindex) ? DB_CREATE : 0))
392 LOG(log_error, logtype_cnid, "Failed to associate devino database: %s",db_strerror(ret));
396 LOG(log_info, logtype_cnid, "... done.");
401 /* ------------------------ */
402 int dbif_closedb(DBD *dbd)
408 for (i = DBIF_DB_CNT -1; i >= 0; i--) {
409 if (dbd->db_table[i].db != NULL && (ret = dbd->db_table[i].db->close(dbd->db_table[i].db, 0))) {
410 LOG(log_error, logtype_cnid, "error closing database %s: %s", dbd->db_table[i].name, db_strerror(ret));
419 /* ------------------------ */
420 int dbif_close(DBD *dbd)
425 if (dbif_closedb(dbd))
428 if (dbd->db_env != NULL && (ret = dbd->db_env->close(dbd->db_env, 0))) {
429 LOG(log_error, logtype_cnid, "error closing DB environment: %s", db_strerror(ret));
432 if (dbd->db_errlog != NULL && fclose(dbd->db_errlog) == EOF) {
433 LOG(log_error, logtype_cnid, "error closing DB logfile: %s", strerror(errno));
437 free(dbd->db_filename);
447 In order to support silent database upgrades:
448 destroy env at cnid_dbd shutdown.
450 int dbif_prep_upgrade(const char *path)
455 LOG(log_debug, logtype_cnid, "Reopening BerkeleyDB environment");
457 if (NULL == (dbd = dbif_init(path, "cnid2.db")))
461 if ((cwd = open(".", O_RDONLY)) < 0) {
462 LOG(log_error, logtype_cnid, "error opening cwd: %s", strerror(errno));
466 /* chdir to db_envhome. makes it easier checking for old db files and creating db_errlog file */
467 if ((chdir(dbd->db_envhome)) != 0) {
468 LOG(log_error, logtype_cnid, "error chdiring to db_env '%s': %s", dbd->db_envhome, strerror(errno));
472 if ((dbd->db_errlog = fopen(DB_ERRLOGFILE, "a")) == NULL)
473 LOG(log_warning, logtype_cnid, "error creating/opening DB errlogfile: %s", strerror(errno));
475 if ((fchdir(cwd)) != 0) {
476 LOG(log_error, logtype_cnid, "error chdiring back: %s", strerror(errno));
480 /* Get db_env handle */
481 if ((ret = db_env_create(&dbd->db_env, 0))) {
482 LOG(log_error, logtype_cnid, "error creating DB environment: %s", db_strerror(ret));
488 if (dbd->db_errlog != NULL) {
489 dbd->db_env->set_errfile(dbd->db_env, dbd->db_errlog);
490 dbd->db_env->set_msgfile(dbd->db_env, dbd->db_errlog);
491 dbd->db_env->set_verbose(dbd->db_env, DB_VERB_RECOVERY, 1);
494 /* Open environment with recovery */
495 if ((ret = dbd->db_env->open(dbd->db_env,
497 DB_CREATE | DB_INIT_LOG | DB_INIT_MPOOL | DB_INIT_LOCK | DB_INIT_TXN | DB_RECOVER | DB_PRIVATE,
499 LOG(log_error, logtype_cnid, "error opening DB environment: %s",
501 dbd->db_env->close(dbd->db_env, 0);
506 if (dbd->db_errlog != NULL)
507 fflush(dbd->db_errlog);
509 /* Remove logfiles */
510 if ((ret = dbd->db_env->log_archive(dbd->db_env, NULL, DB_ARCH_REMOVE))) {
511 LOG(log_error, logtype_cnid, "error removing transaction logfiles: %s", db_strerror(ret));
515 if ((ret = dbd->db_env->close(dbd->db_env, 0))) {
516 LOG(log_error, logtype_cnid, "error closing DB environment after recovery: %s", db_strerror(ret));
521 LOG(log_debug, logtype_cnid, "BerkeleyDB environment recovery done.");
523 /* Get a new db_env handle and then remove environment */
524 if ((ret = db_env_create(&dbd->db_env, 0))) {
525 LOG(log_error, logtype_cnid, "error acquiring db_end handle: %s", db_strerror(ret));
529 if ((ret = dbd->db_env->remove(dbd->db_env, dbd->db_envhome, 0))) {
530 LOG(log_error, logtype_cnid, "error removing BerkeleyDB environment: %s", db_strerror(ret));
534 LOG(log_debug, logtype_cnid, "Removed BerkeleyDB environment.");
540 * The following three functions are wrappers for DB->get(), DB->put() and DB->del().
541 * All three return -1 on error. dbif_get()/dbif_del return 1 if the key was found and 0
542 * otherwise. dbif_put() returns 0 if key/val was successfully updated and 1 if
543 * the DB_NOOVERWRITE flag was specified and the key already exists.
545 * All return codes other than DB_NOTFOUND and DB_KEYEXIST from the DB->()
546 * functions are not expected and therefore error conditions.
549 int dbif_get(DBD *dbd, const int dbi, DBT *key, DBT *val, u_int32_t flags)
553 ret = dbd->db_table[dbi].db->get(dbd->db_table[dbi].db,
559 if (ret == DB_NOTFOUND)
562 LOG(log_error, logtype_cnid, "error retrieving value from %s: %s",
563 dbd->db_table[dbi].name, db_strerror(errno));
569 /* search by secondary return primary */
570 int dbif_pget(DBD *dbd, const int dbi, DBT *key, DBT *pkey, DBT *val, u_int32_t flags)
574 ret = dbd->db_table[dbi].db->pget(dbd->db_table[dbi].db,
581 if (ret == DB_NOTFOUND || ret == DB_SECONDARY_BAD) {
585 LOG(log_error, logtype_cnid, "error retrieving value from %s: %s",
586 dbd->db_table[dbi].name, db_strerror(errno));
592 /* -------------------------- */
593 int dbif_put(DBD *dbd, const int dbi, DBT *key, DBT *val, u_int32_t flags)
597 if (dbif_txn_begin(dbd) < 0) {
598 LOG(log_error, logtype_cnid, "error setting key/value in %s: %s",
599 dbd->db_table[dbi].name, db_strerror(errno));
603 ret = dbd->db_table[dbi].db->put(dbd->db_table[dbi].db,
610 if ((flags & DB_NOOVERWRITE) && ret == DB_KEYEXIST) {
613 LOG(log_error, logtype_cnid, "error setting key/value in %s: %s",
614 dbd->db_table[dbi].name, db_strerror(errno));
621 int dbif_del(DBD *dbd, const int dbi, DBT *key, u_int32_t flags)
625 /* For cooperation with the dbd utility and its usage of a cursor */
627 dbd->db_cur->close(dbd->db_cur);
631 if (dbif_txn_begin(dbd) < 0) {
632 LOG(log_error, logtype_cnid, "error deleting key/value from %s: %s",
633 dbd->db_table[dbi].name, db_strerror(errno));
637 ret = dbd->db_table[dbi].db->del(dbd->db_table[dbi].db,
642 if (ret == DB_NOTFOUND || ret == DB_SECONDARY_BAD)
645 LOG(log_error, logtype_cnid, "error deleting key/value from %s: %s",
646 dbd->db_table[dbi].name, db_strerror(errno));
652 int dbif_txn_begin(DBD *dbd)
656 /* If we already have an active txn, just return */
660 /* If our DBD has no env, just return (-> in memory db) */
661 if (dbd->db_env == NULL)
664 ret = dbd->db_env->txn_begin(dbd->db_env, NULL, &dbd->db_txn, 0);
667 LOG(log_error, logtype_cnid, "error starting transaction: %s", db_strerror(errno));
673 int dbif_txn_commit(DBD *dbd)
680 /* If our DBD has no env, just return (-> in memory db) */
681 if (dbd->db_env == NULL)
684 ret = dbd->db_txn->commit(dbd->db_txn, 0);
688 LOG(log_error, logtype_cnid, "error committing transaction: %s", db_strerror(errno));
694 int dbif_txn_abort(DBD *dbd)
701 /* If our DBD has no env, just return (-> in memory db) */
702 if (dbd->db_env == NULL)
705 ret = dbd->db_txn->abort(dbd->db_txn);
709 LOG(log_error, logtype_cnid, "error aborting transaction: %s", db_strerror(errno));
716 ret = 1 -> commit txn
717 ret = 0 -> abort txn -> exit!
718 anything else -> exit!
720 void dbif_txn_close(DBD *dbd, int ret)
723 if (dbif_txn_abort(dbd) < 0) {
724 LOG( log_error, logtype_cnid, "Fatal error aborting transaction. Exiting!");
727 } else if (ret == 1) {
728 ret = dbif_txn_commit(dbd);
730 LOG( log_error, logtype_cnid, "Fatal error committing transaction. Exiting!");
737 int dbif_txn_checkpoint(DBD *dbd, u_int32_t kbyte, u_int32_t min, u_int32_t flags)
740 ret = dbd->db_env->txn_checkpoint(dbd->db_env, kbyte, min, flags);
742 LOG(log_error, logtype_cnid, "error checkpointing transaction susystem: %s", db_strerror(errno));
748 int dbif_count(DBD *dbd, const int dbi, u_int32_t *count)
752 DB *db = dbd->db_table[dbi].db;
754 ret = db->stat(db, NULL, &sp, 0);
757 LOG(log_error, logtype_cnid, "error getting stat infotmation on database: %s", db_strerror(errno));
761 *count = sp->bt_ndata;
767 int dbif_copy_rootinfokey(DBD *srcdbd, DBD *destdbd)
772 memset(&key, 0, sizeof(key));
773 memset(&data, 0, sizeof(data));
775 key.data = ROOTINFO_KEY;
776 key.size = ROOTINFO_KEYLEN;
778 if ((rc = dbif_get(srcdbd, DBIF_CNID, &key, &data, 0)) <= 0) {
779 LOG(log_error, logtype_cnid, "dbif_copy_rootinfokey: Error getting rootinfo record");
783 memset(&key, 0, sizeof(key));
784 key.data = ROOTINFO_KEY;
785 key.size = ROOTINFO_KEYLEN;
787 if ((rc = dbif_put(destdbd, DBIF_CNID, &key, &data, 0))) {
788 LOG(log_error, logtype_cnid, "dbif_copy_rootinfokey: Error writing rootinfo key");
795 int dbif_dump(DBD *dbd, int dumpindexes)
798 uint32_t max = 0, count = 0, cnid, type, did, lastid;
802 DBT key = { 0 }, data = { 0 };
803 DB *db = dbd->db_table[DBIF_CNID].db;
804 char *typestring[2] = {"f", "d"};
807 printf("CNID database dump:\n");
809 rc = db->cursor(db, NULL, &cur, 0);
811 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(errno));
815 cur->c_get(cur, &key, &data, DB_FIRST);
817 /* Parse and print data */
818 memcpy(&cnid, key.data, 4);
823 /* Rootinfo node ? */
825 memcpy(&stamp, data.data + 4, sizeof(time_t));
826 memcpy(&lastid, data.data + 20, sizeof(cnid_t));
827 lastid = ntohl(lastid);
828 strftime(timebuf, sizeof(timebuf), "%b %d %Y %H:%M:%S", localtime(&stamp));
829 printf("dbd stamp: 0x%08x (%s), next free CNID: %u\n", (unsigned int)stamp, timebuf, lastid + 1);
832 memcpy(&dev, data.data + CNID_DEV_OFS, 8);
835 memcpy(&ino, data.data + CNID_INO_OFS, 8);
838 memcpy(&type, data.data + CNID_TYPE_OFS, 4);
841 memcpy(&did, data.data + CNID_DID_OFS, 4);
845 printf("id: %10u, did: %10u, type: %s, dev: 0x%llx, ino: 0x%016llx, name: %s\n",
846 cnid, did, typestring[type],
847 (long long unsigned int)dev, (long long unsigned int)ino,
848 (char *)data.data + CNID_NAME_OFS);
852 rc = cur->c_get(cur, &key, &data, DB_NEXT);
855 if (rc != DB_NOTFOUND) {
856 LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(errno));
860 rc = cur->c_close(cur);
862 LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(errno));
865 printf("%u CNIDs in database. Max CNID: %u.\n", count, max);
867 /* Dump indexes too ? */
869 /* DBIF_IDX_DEVINO */
870 printf("\ndev/inode index:\n");
872 db = dbd->db_table[DBIF_IDX_DEVINO].db;
873 rc = db->cursor(db, NULL, &cur, 0);
875 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(errno));
879 cur->c_get(cur, &key, &data, DB_FIRST);
881 /* Parse and print data */
884 memcpy(&cnid, data.data, CNID_LEN);
890 memcpy(&dev, key.data, CNID_DEV_LEN);
893 memcpy(&ino, key.data + CNID_DEV_LEN, CNID_INO_LEN);
896 printf("id: %10u <== dev: 0x%llx, ino: 0x%016llx\n",
897 cnid, (unsigned long long int)dev, (unsigned long long int)ino);
900 rc = cur->c_get(cur, &key, &data, DB_NEXT);
902 if (rc != DB_NOTFOUND) {
903 LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(errno));
907 rc = cur->c_close(cur);
909 LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(errno));
912 printf("%u items\n", count);
914 /* Now dump DBIF_IDX_DIDNAME */
915 printf("\ndid/name index:\n");
917 db = dbd->db_table[DBIF_IDX_DIDNAME].db;
918 rc = db->cursor(db, NULL, &cur, 0);
920 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(errno));
924 cur->c_get(cur, &key, &data, DB_FIRST);
926 /* Parse and print data */
929 memcpy(&cnid, data.data, CNID_LEN);
935 memcpy(&did, key.data, CNID_LEN);
938 printf("id: %10u <== did: %10u, name: %s\n", cnid, did, (char *)key.data + CNID_LEN);
941 rc = cur->c_get(cur, &key, &data, DB_NEXT);
943 if (rc != DB_NOTFOUND) {
944 LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(errno));
948 rc = cur->c_close(cur);
950 LOG(log_error, logtype_cnid, "Couldn't close cursor: %s", db_strerror(errno));
953 printf("%u items\n", count);
960 Iterates over dbd, returning cnids.
961 Uses in-value of cnid to seek to that cnid, then gets next and return that in cnid.
962 If close=1, close cursor.
963 Return -1 on error, 0 on EOD (end-of-database), 1 if returning cnid.
965 int dbif_idwalk(DBD *dbd, cnid_t *cnid, int close)
971 static DBT key = { 0 }, data = { 0 };
972 DB *db = dbd->db_table[DBIF_CNID].db;
974 if (close && dbd->db_cur) {
975 dbd->db_cur->close(dbd->db_cur);
980 /* An dbif_del will have closed our cursor too */
981 if ( ! dbd->db_cur ) {
982 if (db->cursor(db, NULL, &dbd->db_cur, 0) != 0) {
983 LOG(log_error, logtype_cnid, "Couldn't create cursor: %s", db_strerror(errno));
986 flag = DB_SET_RANGE; /* This will seek to next cnid after the one just deleted */
989 key.size = sizeof(cnid_t);
993 if ((rc = dbd->db_cur->get(dbd->db_cur, &key, &data, flag)) == 0) {
994 memcpy(cnid, key.data, sizeof(cnid_t));
995 *cnid = ntohl(*cnid);
999 if (rc != DB_NOTFOUND) {
1000 LOG(log_error, logtype_cnid, "Error iterating over btree: %s", db_strerror(errno));
1001 dbd->db_cur->close(dbd->db_cur);
1007 dbd->db_cur->close(dbd->db_cur);