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- #ifndef __TDB_H__
- #define __TDB_H__
-
- /*
- Unix SMB/CIFS implementation.
-
- trivial database library
-
- Copyright (C) Andrew Tridgell 1999-2004
-
- ** NOTE! The following LGPL license applies to the tdb
- ** library. This does NOT imply that all of Samba is released
- ** under the LGPL
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
-
- /* flags to tdb_store() */
- #define TDB_REPLACE 1
- #define TDB_INSERT 2
- #define TDB_MODIFY 3
-
- /* flags for tdb_open() */
- #define TDB_DEFAULT 0 /* just a readability place holder */
- #define TDB_CLEAR_IF_FIRST 1
- #define TDB_INTERNAL 2 /* don't store on disk */
- #define TDB_NOLOCK 4 /* don't do any locking */
- #define TDB_NOMMAP 8 /* don't use mmap */
- #define TDB_CONVERT 16 /* convert endian (internal use) */
- #define TDB_BIGENDIAN 32 /* header is big-endian (internal use) */
- #define TDB_NOSYNC 64 /* don't use synchronous transactions */
- #define TDB_SEQNUM 128 /* maintain a sequence number */
-
- #define TDB_ERRCODE(code, ret) ((tdb->ecode = (code)), ret)
-
- /* error codes */
- enum TDB_ERROR {TDB_SUCCESS=0, TDB_ERR_CORRUPT, TDB_ERR_IO, TDB_ERR_LOCK,
- TDB_ERR_OOM, TDB_ERR_EXISTS, TDB_ERR_NOLOCK, TDB_ERR_LOCK_TIMEOUT,
- TDB_ERR_NOEXIST, TDB_ERR_EINVAL, TDB_ERR_RDONLY};
-
- /* debugging uses one of the following levels */
- enum tdb_debug_level {TDB_DEBUG_FATAL = 0, TDB_DEBUG_ERROR,
- TDB_DEBUG_WARNING, TDB_DEBUG_TRACE};
-
- typedef struct TDB_DATA {
- unsigned char *dptr;
- size_t dsize;
- } TDB_DATA;
-
- #ifndef PRINTF_ATTRIBUTE
- #if (__GNUC__ >= 3)
- /** Use gcc attribute to check printf fns. a1 is the 1-based index of
- * the parameter containing the format, and a2 the index of the first
- * argument. Note that some gcc 2.x versions don't handle this
- * properly **/
- #define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
- #else
- #define PRINTF_ATTRIBUTE(a1, a2)
- #endif
- #endif
-
- /* ext2fs tdb renames */
- #define tdb_open ext2fs_tdb_open
- #define tdb_open_ex ext2fs_tdb_open_ex
- #define tdb_set_max_dead ext2fs_tdb_set_max_dead
- #define tdb_reopen ext2fs_tdb_reopen
- #define tdb_reopen_all ext2fs_tdb_reopen_all
- #define tdb_set_logging_function ext2fs_tdb_set_logging_function
- #define tdb_error ext2fs_tdb_error
- #define tdb_errorstr ext2fs_tdb_errorstr
- #define tdb_fetch ext2fs_tdb_fetch
- #define tdb_parse_record ext2fs_tdb_parse_record
- #define tdb_delete ext2fs_tdb_delete
- #define tdb_store ext2fs_tdb_store
- #define tdb_append ext2fs_tdb_append
- #define tdb_close ext2fs_tdb_close
- #define tdb_firstkey ext2fs_tdb_firstkey
- #define tdb_nextkey ext2fs_tdb_nextkey
- #define tdb_traverse ext2fs_tdb_traverse
- #define tdb_traverse_read ext2fs_tdb_traverse_read
- #define tdb_exists ext2fs_tdb_exists
- #define tdb_lockall ext2fs_tdb_lockall
- #define tdb_unlockall ext2fs_tdb_unlockall
- #define tdb_lockall_read ext2fs_tdb_lockall_read
- #define tdb_unlockall_read ext2fs_tdb_unlockall_read
- #define tdb_name ext2fs_tdb_name
- #define tdb_fd ext2fs_tdb_fd
- #define tdb_log_fn ext2fs_tdb_log_fn
- #define tdb_get_logging_private ext2fs_tdb_get_logging_private
- #define tdb_transaction_start ext2fs_tdb_transaction_start
- #define tdb_transaction_commit ext2fs_tdb_transaction_commit
- #define tdb_transaction_cancel ext2fs_tdb_transaction_cancel
- #define tdb_transaction_recover ext2fs_tdb_transaction_recover
- #define tdb_get_seqnum ext2fs_tdb_get_seqnum
- #define tdb_hash_size ext2fs_tdb_hash_size
- #define tdb_map_size ext2fs_tdb_map_size
- #define tdb_get_flags ext2fs_tdb_get_flags
- #define tdb_chainlock ext2fs_tdb_chainlock
- #define tdb_chainunlock ext2fs_tdb_chainunlock
- #define tdb_chainlock_read ext2fs_tdb_chainlock_read
- #define tdb_chainunlock_read ext2fs_tdb_chainunlock_read
- #define tdb_dump_all ext2fs_tdb_dump_all
- #define tdb_printfreelist ext2fs_tdb_printfreelist
- #define tdb_validate_freelist ext2fs_tdb_validate_freelist
- #define tdb_chainlock_mark ext2fs_tdb_chainlock_mark
- #define tdb_chainlock_nonblock ext2fs_tdb_chainlock_nonblock
- #define tdb_chainlock_unmark ext2fs_tdb_chainlock_unmark
- #define tdb_enable_seqnum ext2fs_tdb_enable_seqnum
- #define tdb_increment_seqnum_nonblock ext2fs_tdb_increment_seqnum_nonblock
- #define tdb_lock_nonblock ext2fs_tdb_lock_nonblock
- #define tdb_lockall_mark ext2fs_tdb_lockall_mark
- #define tdb_lockall_nonblock ext2fs_tdb_lockall_nonblock
- #define tdb_lockall_read_nonblock ext2fs_tdb_lockall_read_nonblock
- #define tdb_lockall_unmark ext2fs_tdb_lockall_unmark
-
- /* this is the context structure that is returned from a db open */
- typedef struct tdb_context TDB_CONTEXT;
-
- typedef int (*tdb_traverse_func)(struct tdb_context *, TDB_DATA, TDB_DATA, void *);
- typedef void (*tdb_log_func)(struct tdb_context *, enum tdb_debug_level, const char *, ...) PRINTF_ATTRIBUTE(3, 4);
- typedef unsigned int (*tdb_hash_func)(TDB_DATA *key);
-
- struct tdb_logging_context {
- tdb_log_func log_fn;
- void *log_private;
- };
-
- struct tdb_context *tdb_open(const char *name, int hash_size, int tdb_flags,
- int open_flags, mode_t mode);
- struct tdb_context *tdb_open_ex(const char *name, int hash_size, int tdb_flags,
- int open_flags, mode_t mode,
- const struct tdb_logging_context *log_ctx,
- tdb_hash_func hash_fn);
- void tdb_set_max_dead(struct tdb_context *tdb, int max_dead);
-
- int tdb_reopen(struct tdb_context *tdb);
- int tdb_reopen_all(int parent_longlived);
- void tdb_set_logging_function(struct tdb_context *tdb, const struct tdb_logging_context *log_ctx);
- enum TDB_ERROR tdb_error(struct tdb_context *tdb);
- const char *tdb_errorstr(struct tdb_context *tdb);
- TDB_DATA tdb_fetch(struct tdb_context *tdb, TDB_DATA key);
- int tdb_parse_record(struct tdb_context *tdb, TDB_DATA key,
- int (*parser)(TDB_DATA key, TDB_DATA data,
- void *private_data),
- void *private_data);
- int tdb_delete(struct tdb_context *tdb, TDB_DATA key);
- int tdb_store(struct tdb_context *tdb, TDB_DATA key, TDB_DATA dbuf, int flag);
- int tdb_append(struct tdb_context *tdb, TDB_DATA key, TDB_DATA new_dbuf);
- int tdb_close(struct tdb_context *tdb);
- TDB_DATA tdb_firstkey(struct tdb_context *tdb);
- TDB_DATA tdb_nextkey(struct tdb_context *tdb, TDB_DATA key);
- int tdb_traverse(struct tdb_context *tdb, tdb_traverse_func fn, void *);
- int tdb_traverse_read(struct tdb_context *tdb, tdb_traverse_func fn, void *);
- int tdb_exists(struct tdb_context *tdb, TDB_DATA key);
- int tdb_lockall(struct tdb_context *tdb);
- int tdb_lockall_nonblock(struct tdb_context *tdb);
- int tdb_unlockall(struct tdb_context *tdb);
- int tdb_lockall_read(struct tdb_context *tdb);
- int tdb_lockall_read_nonblock(struct tdb_context *tdb);
- int tdb_unlockall_read(struct tdb_context *tdb);
- int tdb_lockall_mark(struct tdb_context *tdb);
- int tdb_lockall_unmark(struct tdb_context *tdb);
- const char *tdb_name(struct tdb_context *tdb);
- int tdb_fd(struct tdb_context *tdb);
- tdb_log_func tdb_log_fn(struct tdb_context *tdb);
- void *tdb_get_logging_private(struct tdb_context *tdb);
- int tdb_transaction_start(struct tdb_context *tdb);
- int tdb_transaction_commit(struct tdb_context *tdb);
- int tdb_transaction_cancel(struct tdb_context *tdb);
- int tdb_transaction_recover(struct tdb_context *tdb);
- int tdb_get_seqnum(struct tdb_context *tdb);
- int tdb_hash_size(struct tdb_context *tdb);
- size_t tdb_map_size(struct tdb_context *tdb);
- int tdb_get_flags(struct tdb_context *tdb);
- void tdb_enable_seqnum(struct tdb_context *tdb);
- void tdb_increment_seqnum_nonblock(struct tdb_context *tdb);
-
- /* Low level locking functions: use with care */
- int tdb_chainlock(struct tdb_context *tdb, TDB_DATA key);
- int tdb_chainlock_nonblock(struct tdb_context *tdb, TDB_DATA key);
- int tdb_chainunlock(struct tdb_context *tdb, TDB_DATA key);
- int tdb_chainlock_read(struct tdb_context *tdb, TDB_DATA key);
- int tdb_chainunlock_read(struct tdb_context *tdb, TDB_DATA key);
- int tdb_chainlock_mark(struct tdb_context *tdb, TDB_DATA key);
- int tdb_chainlock_unmark(struct tdb_context *tdb, TDB_DATA key);
-
- /* Debug functions. Not used in production. */
- void tdb_dump_all(struct tdb_context *tdb);
- int tdb_printfreelist(struct tdb_context *tdb);
- int tdb_validate_freelist(struct tdb_context *tdb, int *pnum_entries);
-
- extern TDB_DATA tdb_null;
-
- #ifdef __cplusplus
- }
- #endif
-
- #endif /* tdb.h */
-