dbif.h

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/*
  Copyright (C) Joerg Lenneis 2003
  Copyright (C) Frank Lahm 2009
  All Rights Reserved.  See COPYING.
 */

 
#ifndef CNID_DBD_DBIF_H
#define CNID_DBD_DBIF_H 1
 
#include <db.h>
 
#include <atalk/adouble.h>
 
#include "db_param.h"
 
#define DBIF_DB_CNT 4
 
#define DBIF_CNID          0
#define DBIF_IDX_DEVINO    1
#define DBIF_IDX_DIDNAME   2
#define DBIF_IDX_NAME      3
 
#define LOCKFILENAME  "lock"
#define LOCK_FREE          0
#define LOCK_UNLOCK        1
#define LOCK_EXCL          2
#define LOCK_SHRD          3
 
/* Structures */
typedef struct {
    char     *name;
    DB       *db;
    uint32_t flags;
    uint32_t openflags;
    DBTYPE   type;
} db_table;
 
typedef struct {
    DB_ENV   *db_env;
    struct db_param db_param;
    DB_TXN   *db_txn;
    DBC      *db_cur;              
    char     *db_envhome;
    char     *db_filename;
    FILE     *db_errlog;
    db_table db_table[DBIF_DB_CNT];
} DBD;
 
DBD *dbif_init(const char *envhome, const char *dbname);
int dbif_env_open(DBD *dbd, struct db_param *dbp, uint32_t dbenv_oflags);
int dbif_open(DBD *dbd, struct db_param *dbp, int reindex);
int dbif_close(DBD *dbd);
int dbif_env_remove(const char *path);
 
int dbif_get(DBD *, const int, DBT *, DBT *, uint32_t);
int dbif_pget(DBD *, const int, DBT *, DBT *, DBT *, uint32_t);
int dbif_put(DBD *, const int, DBT *, DBT *, uint32_t);
int dbif_del(DBD *, const int, DBT *, uint32_t);
int dbif_count(DBD *, const int, uint32_t *);
int dbif_search(DBD *dbd, DBT *key, char *resbuf);
int dbif_copy_rootinfokey(DBD *srcdbd, DBD *destdbd);
int dbif_txn_begin(DBD *);
int dbif_txn_commit(DBD *);
int dbif_txn_abort(DBD *);
int dbif_txn_close(DBD *dbd, int ret); 
int dbif_txn_checkpoint(DBD *, uint32_t, uint32_t, uint32_t);
 
int dbif_dump(DBD *dbd, int dumpindexes);
int dbif_idwalk(DBD *dbd, cnid_t *cnid, int close);
#endif