#ifndef __TDB_H__
#define __TDB_H__
#ifdef __cplusplus
extern "C" {
#endif
#ifndef PRINTF_ATTRIBUTE
#if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (__printf__, a1, a2)))
#else
#define PRINTF_ATTRIBUTE(a1, a2)
#endif
#endif
#define TDB_REPLACE 1
#define TDB_INSERT 2
#define TDB_MODIFY 3
#define TDB_DEFAULT 0
#define TDB_CLEAR_IF_FIRST 1
#define TDB_INTERNAL 2
#define TDB_NOLOCK 4
#define TDB_NOMMAP 8
#define TDB_CONVERT 16
#define TDB_BIGENDIAN 32
#define TDB_ERRCODE(code, ret) ((tdb->ecode = (code)), ret)
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};
#ifndef u32
#define u32 unsigned
#endif
typedef struct {
char *dptr;
size_t dsize;
} TDB_DATA;
typedef u32 tdb_len;
typedef u32 tdb_off;
struct tdb_header {
char magic_food[32];
u32 version;
u32 hash_size;
tdb_off rwlocks;
tdb_off reserved[31];
};
struct tdb_lock_type {
u32 count;
u32 ltype;
};
struct tdb_traverse_lock {
struct tdb_traverse_lock *next;
u32 off;
u32 hash;
};
typedef struct tdb_context {
char *name;
void *map_ptr;
int fd;
tdb_len map_size;
int read_only;
struct tdb_lock_type *locked;
enum TDB_ERROR ecode;
struct tdb_header header;
u32 flags;
struct tdb_traverse_lock travlocks;
struct tdb_context *next;
dev_t device;
ino_t inode;
void (*log_fn)(struct tdb_context *tdb, int level, const char *, ...) PRINTF_ATTRIBUTE(3,4);
u32 (*hash_fn)(TDB_DATA *key);
int open_flags;
} TDB_CONTEXT;
typedef int (*tdb_traverse_func)(TDB_CONTEXT *, TDB_DATA, TDB_DATA, void *);
typedef void (*tdb_log_func)(TDB_CONTEXT *, int , const char *, ...);
typedef u32 (*tdb_hash_func)(TDB_DATA *key);
TDB_CONTEXT *tdb_open(const char *name, int hash_size, int tdb_flags,
int open_flags, mode_t mode);
TDB_CONTEXT *tdb_open_ex(const char *name, int hash_size, int tdb_flags,
int open_flags, mode_t mode,
tdb_log_func log_fn,
tdb_hash_func hash_fn);
int tdb_reopen(TDB_CONTEXT *tdb);
int tdb_reopen_all(void);
void tdb_logging_function(TDB_CONTEXT *tdb, tdb_log_func);
enum TDB_ERROR tdb_error(TDB_CONTEXT *tdb);
const char *tdb_errorstr(TDB_CONTEXT *tdb);
TDB_DATA tdb_fetch(TDB_CONTEXT *tdb, TDB_DATA key);
int tdb_delete(TDB_CONTEXT *tdb, TDB_DATA key);
int tdb_store(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf, int flag);
int tdb_append(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA new_dbuf);
int tdb_close(TDB_CONTEXT *tdb);
TDB_DATA tdb_firstkey(TDB_CONTEXT *tdb);
TDB_DATA tdb_nextkey(TDB_CONTEXT *tdb, TDB_DATA key);
int tdb_traverse(TDB_CONTEXT *tdb, tdb_traverse_func fn, void *);
int tdb_exists(TDB_CONTEXT *tdb, TDB_DATA key);
int tdb_lockkeys(TDB_CONTEXT *tdb, u32 number, TDB_DATA keys[]);
void tdb_unlockkeys(TDB_CONTEXT *tdb);
int tdb_lockall(TDB_CONTEXT *tdb);
void tdb_unlockall(TDB_CONTEXT *tdb);
void tdb_set_lock_alarm(sig_atomic_t *palarm);
int tdb_chainlock(TDB_CONTEXT *tdb, TDB_DATA key);
int tdb_chainunlock(TDB_CONTEXT *tdb, TDB_DATA key);
void tdb_dump_all(TDB_CONTEXT *tdb);
int tdb_printfreelist(TDB_CONTEXT *tdb);
extern TDB_DATA tdb_null;
#ifdef __cplusplus
}
#endif
#endif