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#ifndef TDB1_H
#define TDB1_H
/*
Unix SMB/CIFS implementation.
trivial database library (version 1 compat functions)
Copyright (C) Andrew Tridgell 1999-2004
Copyright (C) Rusty Russell 2011
** 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "tdb2.h"
#ifndef _SAMBA_BUILD_
/* For mode_t */
#include <sys/types.h>
/* For O_* flags. */
#include <sys/stat.h>
#endif
/** Flags to tdb1_store() */
#define TDB1_REPLACE 1 /** Unused */
#define TDB1_INSERT 2 /** Don't overwrite an existing entry */
#define TDB1_MODIFY 3 /** Don't create an existing entry */
/** Flags for tdb1_open() */
#define TDB1_DEFAULT 0 /** just a readability place holder */
#define TDB1_CLEAR_IF_FIRST 1 /** If this is the first open, wipe the db */
#define TDB1_INTERNAL 2 /** Don't store on disk */
#define TDB1_NOLOCK 4 /** Don't do any locking */
#define TDB1_NOMMAP 8 /** Don't use mmap */
#define TDB1_CONVERT 16 /** Convert endian (internal use) */
#define TDB1_BIGENDIAN 32 /** Header is big-endian (internal use) */
#define TDB1_NOSYNC 64 /** Don't use synchronous transactions */
#define TDB1_SEQNUM 128 /** Maintain a sequence number */
#define TDB1_VOLATILE 256 /** Activate the per-hashchain freelist, default 5 */
#define TDB1_ALLOW_NESTING 512 /** Allow transactions to nest */
#define TDB1_DISALLOW_NESTING 1024 /** Disallow transactions to nest */
#define TDB1_INCOMPATIBLE_HASH 2048 /** Better hashing: can't be opened by tdb < 1.2.6. */
/** The tdb error codes */
enum TDB1_ERROR {TDB1_SUCCESS=0, TDB1_ERR_CORRUPT, TDB1_ERR_IO, TDB1_ERR_LOCK,
TDB1_ERR_OOM, TDB1_ERR_EXISTS, TDB1_ERR_NOLOCK, TDB1_ERR_LOCK_TIMEOUT,
TDB1_ERR_NOEXIST, TDB1_ERR_EINVAL, TDB1_ERR_RDONLY,
TDB1_ERR_NESTING};
/** Debugging uses one of the following levels */
enum tdb1_debug_level {TDB1_DEBUG_FATAL = 0, TDB1_DEBUG_ERROR,
TDB1_DEBUG_WARNING, TDB1_DEBUG_TRACE};
/** The tdb data structure */
typedef struct TDB1_DATA {
unsigned char *dptr;
size_t dsize;
} TDB1_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
/** This is the context structure that is returned from a db open. */
typedef struct tdb1_context TDB1_CONTEXT;
typedef int (*tdb1_traverse_func)(struct tdb1_context *, TDB1_DATA, TDB1_DATA, void *);
typedef void (*tdb1_log_func)(struct tdb1_context *, enum tdb1_debug_level, const char *, ...) PRINTF_ATTRIBUTE(3, 4);
typedef unsigned int (*tdb1_hash_func)(TDB1_DATA *key);
struct tdb1_logging_context {
tdb1_log_func log_fn;
void *log_private;
};
struct tdb1_context *tdb1_open(const char *name, int hash_size, int tdb1_flags,
int open_flags, mode_t mode);
struct tdb1_context *tdb1_open_ex(const char *name, int hash_size, int tdb1_flags,
int open_flags, mode_t mode,
const struct tdb1_logging_context *log_ctx,
tdb1_hash_func hash_fn);
void tdb1_set_max_dead(struct tdb1_context *tdb, int max_dead);
TDB1_DATA tdb1_fetch(struct tdb1_context *tdb, TDB1_DATA key);
int tdb1_parse_record(struct tdb1_context *tdb, TDB1_DATA key,
int (*parser)(TDB1_DATA key, TDB1_DATA data,
void *private_data),
void *private_data);
int tdb1_delete(struct tdb1_context *tdb, TDB1_DATA key);
int tdb1_store(struct tdb1_context *tdb, TDB1_DATA key, TDB1_DATA dbuf, int flag);
int tdb1_append(struct tdb1_context *tdb, TDB1_DATA key, TDB1_DATA new_dbuf);
int tdb1_close(struct tdb1_context *tdb);
TDB1_DATA tdb1_firstkey(struct tdb1_context *tdb);
TDB1_DATA tdb1_nextkey(struct tdb1_context *tdb, TDB1_DATA key);
int tdb1_traverse(struct tdb1_context *tdb, tdb1_traverse_func fn, void *private_data);
int tdb1_traverse_read(struct tdb1_context *tdb, tdb1_traverse_func fn, void *private_data);
int tdb1_exists(struct tdb1_context *tdb, TDB1_DATA key);
int tdb1_lockall(struct tdb1_context *tdb);
int tdb1_unlockall(struct tdb1_context *tdb);
int tdb1_lockall_read(struct tdb1_context *tdb);
int tdb1_unlockall_read(struct tdb1_context *tdb);
tdb1_log_func tdb1_log_fn(struct tdb1_context *tdb);
int tdb1_transaction_start(struct tdb1_context *tdb);
int tdb1_transaction_prepare_commit(struct tdb1_context *tdb);
int tdb1_transaction_commit(struct tdb1_context *tdb);
int tdb1_transaction_cancel(struct tdb1_context *tdb);
int tdb1_get_seqnum(struct tdb1_context *tdb);
int tdb1_hash_size(struct tdb1_context *tdb);
void tdb1_increment_seqnum_nonblock(struct tdb1_context *tdb);
unsigned int tdb1_jenkins_hash(TDB1_DATA *key);
int tdb1_check(struct tdb1_context *tdb,
int (*check) (TDB1_DATA key, TDB1_DATA data, void *private_data),
void *private_data);
/* @} ******************************************************************/
/* Low level locking functions: use with care */
int tdb1_chainlock(struct tdb1_context *tdb, TDB1_DATA key);
int tdb1_chainunlock(struct tdb1_context *tdb, TDB1_DATA key);
int tdb1_chainlock_read(struct tdb1_context *tdb, TDB1_DATA key);
int tdb1_chainunlock_read(struct tdb1_context *tdb, TDB1_DATA key);
/* wipe and repack */
int tdb1_wipe_all(struct tdb1_context *tdb);
int tdb1_repack(struct tdb1_context *tdb);
/* Debug functions. Not used in production. */
char *tdb1_summary(struct tdb1_context *tdb);
extern TDB1_DATA tdb1_null;
#endif /* tdb1.h */
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