nss/nss_db/dummy-db.h

/* Constants and structures from the various Berkeley DB releases.
   Copyright (C) 1999, 2000 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C 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 2.1 of the License, or (at your option) any later version.

   The GNU C 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 the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <stdint.h>

#include "nss_db.h"

/* This file contains dummy definitions for various constants and
   structures from the Berkeley release.  We only provide those
   definitions that are actually needed.  In case of the structures,
   we're only interested in the function pointers, since that's the
   interface to the database.  Unfortunately the structures have been
   changed several times.  */

/* The value for the btree database type has not been changed (yet?).  */
#define DB_BTREE	(1)

/* Permission flags for all 2.x releases.  */
#define DB2x_RDONLY	0x010000

/* The error values for all 2.x releases.  */
#define DB2x_KEYEXIST	( -3)
#define DB2x_NOTFOUND	( -7)

/* For all 2.x releases up to 2.6.3 we can use the same definitions.
   We'll refer to them as 2.4 since that's the version distributed
   with glibc 2.1.  */

/* Access methods from version 2.4.  */
#define DB24_FIRST		0x000020
#define DB24_NEXT		0x000800
#define DB24_NOOVERWRITE	0x001000

/* Permission flags from version 2.4.  */
#define DB24_TRUNCATE	0x080000

/* The DB structure from version 2.4.  */
struct db24
{
  void	*mutexp;
  enum { dummy24 } type;
  void *dbenv;
  void *mp_dbenv;
  void *master;
  void *internal;
  void *mp;
  void *mpf;
  struct
  {
    void *tqh_first;
    void **tqh_last;
  } curs_queue;
  struct {
    void *lh_first;
  } handleq;
  struct {
    void *le_next;
    void **le_prev;
  } links;
  uint32_t log_fileid;
  void *txn;
  uint32_t locker;
  struct db24_dbt {
    void *data;
    uint32_t size;
    uint32_t ulen;
    uint32_t dlen;
    uint32_t doff;
    uint32_t flags;
  } lock_dbt;
  struct{
    uint32_t pgno;
    uint8_t fileid[20];
  } lock;
  size_t pgsize;
  void *db_malloc;
  /* Functions. */
  int (*close) (void *, uint32_t);
  int (*cursor) (void *, void *, void **);
  int (*del) (void *, void *, DBT *, uint32_t);
  int (*fd) (void *, int *);
  int (*get) (void *, void *, DBT *, DBT *, uint32_t);
  int (*put) (void *, void *, DBT *, DBT *, uint32_t);
  int (*stat) (void *, void *, void *(*)(size_t), uint32_t);
  int (*sync) (void *, uint32_t);
  uint32_t flags;
};

/* The DBC structure for the 2.4 release.  */
struct dbc24
{
  void *dbp;
  void *txn;
  struct
  {
    void *tqe_next;
    void **tqe_prev;
  } links;
  void *internal;
  void *c_close;
  void *c_del;
  int (*c_get) (void *, DBT *, DBT *, uint32_t);
  void *c_put;
};

/* The 2.7 release is slighty different.  */

/* Access methods from version 2.7.  */
#define DB27_FIRST		7
#define DB27_NEXT		15
#define DB27_NOOVERWRITE	17

/* Permission flags from version 2.7.  */
#define DB27_TRUNCATE	0x020000

/* The DB structure from version 2.7.  */
struct db27
{
  void	*mutexp;
  enum { dummy27 } type;
  int byteswapped;
  int saved_open_fd;
  void *dbenv;
  void *mp_dbenv;
  void *internal;
  void *mp;
  void *mpf;
  struct
  {
    void *tqh_first;
    void **tqh_last;
  } free_queue;
  struct
  {
    void *tqh_first;
    void **tqh_last;
  } active_queue;
  uint8_t fileid[20];
  uint32_t log_fileid;
  size_t pgsize;
  void *db_malloc;
  void *dup_compare;
  void *h_hash;
  /* Functions. */
  int (*am_close) (void *);
  int (*close) (void *, uint32_t);
  int (*cursor) (void *, void *, void **, uint32_t);
  int (*del) (void *, void *, DBT *, uint32_t);
  int (*fd) (void *, int *);
  int (*get) (void *, void *, DBT *, DBT *, uint32_t);
  int (*join) (void *, void **, uint32_t, void **);
  int (*put) (void *, void *, DBT *, DBT *, uint32_t);
  int (*stat) (void *, void *, void *(*)(size_t), uint32_t);
  int (*sync) (void *, uint32_t);
  uint32_t flags;
};

/* The DBC structure for version 2.7.  */
struct dbc27
{
  void *dbp;
  void *txn;
  struct
  {
    void *tqe_next;
    void **tqe_prev;
  } links;
  uint32_t lid;
  uint32_t locker;
  DBT lock_dbt;
  struct{
    uint32_t pgno;
    uint8_t fileid[20];
  } lock;
  size_t mylock;
  DBT rkey;
  DBT rdata;
  void *c_am_close;
  void *c_am_destroy;
  void *c_close;
  void *c_del;
  int (*c_get) (void *, DBT *, DBT *, uint32_t);
  void *c_put;
  void *internal;
  uint32_t flags;
};

/* Version 3.0 is mostly incompatible with 2.x.  */

/* Access methods from version 3.0.  */
#define DB30_FIRST		9
#define DB30_NEXT		17
#define DB30_NOOVERWRITE	20

/* Error values from version 3.0.  */
#define DB30_KEYEXIST	(-30997)
#define DB30_NOTFOUND	(-30994)

/* Permission flags from version 3.0.  */
#define DB30_RDONLY	0x000010
#define DB30_TRUNCATE	0x020000

/* The DB structure from version 3.0.  */
struct db30
{
  size_t pgsize;
  void (*db_feedback) (void *, int, int);
  void *(*db_malloc) (size_t);
  void *(*db_realloc) (void *, size_t);
  int (*dup_compare) (const DBT *, const DBT *);
  void *dbenv;
  enum { dummy30 } type;
  void *mpf;
  void	*mutexp;
  u_int8_t fileid[20];
  int32_t log_fileid;
  void *open_txn;
  void *saved_open_fhp;
  struct
  {
    void *tqh_first;
    void **tqh_last;
  } free_queue;
  struct
  {
    void *tqh_first;
    void **tqh_last;
  } active_queue;
  void	*bt_internal;
  void	*cj_internal;
  void	*h_internal;
  void	*q_internal;
  void	*xa_internal;
  /* Functions.  */
  int  (*close) (void *, uint32_t);
  int  (*cursor) (void *, void *, void **, uint32_t);
  int  (*del) (void *, void *, DBT *, uint32_t);
  void (*err) (void *, int, const char *, ...);
  void (*errx) (void *, const char *, ...);
  int  (*fd) (void *, int *);
  int  (*get) (void *, void *, DBT *, DBT *, uint32_t);
  int  (*get_byteswapped) (void *);
  int (*get_type) (void *);
  int  (*join) (void *, void **, void **, uint32_t);
  int  (*open) (void *,	const char *, const char *, int, uint32_t, int);
  int  (*put) (void *, void *, DBT *, DBT *, uint32_t);
  int  (*remove) (void *, const char *, const char *, uint32_t);
  int  (*set_cachesize) (void *, uint32_t, uint32_t, int);
  int  (*set_dup_compare) (void *, int (*)(const DBT *, const DBT *));
  void (*set_errcall) (void *, void (*)(const char *, char *));
  void (*set_errfile) (void *, void *);
  void (*set_errpfx) (void *, const char *);
  void (*set_feedback) (void *, void (*)(void *, int, int));
  int  (*set_flags) (void *, uint32_t);
  int  (*set_lorder) (void *, int);
  int  (*set_malloc) (void *, void *(*)(size_t));
  int  (*set_pagesize) (void *, uint32_t);
  void (*set_paniccall) (void *, void (*)(void *, int));
  int  (*set_realloc) (void *, void *(*)(void *, size_t));
  int  (*stat) (void *, void *, void *(*)(size_t), uint32_t);
  int  (*sync) (void *, uint32_t);
  int  (*upgrade) (void *, const char *, uint32_t);

  int  (*set_bt_compare) (void *, int (*)(const DBT *, const DBT *));
  int  (*set_bt_maxkey) (void *, uint32_t);
  int  (*set_bt_minkey) (void *, uint32_t);
  int  (*set_bt_prefix) (void *, size_t (*)(const DBT *, const DBT *));

  int  (*set_h_ffactor) (void *, uint32_t);
  int  (*set_h_hash) (void *, uint32_t (*)(const void *, uint32_t));
  int  (*set_h_nelem) (void *, uint32_t);

  int  (*set_re_delim) (void *, int);
  int  (*set_re_len) (void *, uint32_t);
  int  (*set_re_pad) (void *, int);
  int  (*set_re_source) (void *, const char *);

  uint32_t am_ok;
  uint32_t flags;
};

/* The DBC structure from version 3.0.  */
struct dbc30
{
  void *dbp;
  void *txn;
  struct
  {
    void *tqe_next;
    void **tqe_prev;
  } links;
  uint32_t lid;			/* Default process' locker id. */
  uint32_t locker;		/* Locker for this operation. */
  DBT lock_dbt;		/* DBT referencing lock. */
  struct
  {
    uint32_t pgno;
    uint8_t fileid[20];
  } lock;
  struct
  {
    size_t off;
    uint32_t ndx;
    uint32_t gen;
  } mylock;
  DBT rkey;
  DBT rdata;
  int (*c_close) (void *);
  int (*c_del) (void *, uint32_t);
  int (*c_dup) (void *, void **, uint32_t);
  int (*c_get) (void *, DBT *, DBT *, uint32_t);
  int (*c_put) (void *, DBT *, DBT *, uint32_t);
  int (*c_am_close) (void *);
  int (*c_am_destroy) (void *);
  void *internal;
  uint32_t flags;
};