source3/lib/dbwrap/dbwrap.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Database interface wrapper around tdb
   4    Copyright (C) Volker Lendecke 2005-2007
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #ifndef __DBWRAP_H__
  21 #define __DBWRAP_H__
  22
  23 #include "tdb_compat.h"
  24
  25 struct db_record {
  26         TDB_DATA key, value;
  27         NTSTATUS (*store)(struct db_record *rec, TDB_DATA data, int flag);
  28         NTSTATUS (*delete_rec)(struct db_record *rec);
  29         void *private_data;
  30 };
  31
  32 struct db_context {
  33         struct db_record *(*fetch_locked)(struct db_context *db,
  34                                           TALLOC_CTX *mem_ctx,
  35                                           TDB_DATA key);
  36         int (*fetch)(struct db_context *db, TALLOC_CTX *mem_ctx,
  37                      TDB_DATA key, TDB_DATA *data);
  38         int (*traverse)(struct db_context *db,
  39                         int (*f)(struct db_record *rec,
  40                                  void *private_data),
  41                         void *private_data);
  42         int (*traverse_read)(struct db_context *db,
  43                              int (*f)(struct db_record *rec,
  44                                       void *private_data),
  45                              void *private_data);
  46         int (*get_seqnum)(struct db_context *db);
  47         int (*get_flags)(struct db_context *db);
  48         int (*transaction_start)(struct db_context *db);
  49         int (*transaction_commit)(struct db_context *db);
  50         int (*transaction_cancel)(struct db_context *db);
  51         int (*parse_record)(struct db_context *db, TDB_DATA key,
  52                             int (*parser)(TDB_DATA key, TDB_DATA data,
  53                                           void *private_data),
  54                             void *private_data);
  55         void *private_data;
  56         bool persistent;
  57 };
  58
  59
  60 NTSTATUS dbwrap_delete(struct db_context *db, TDB_DATA key);
  61 NTSTATUS dbwrap_store(struct db_context *db, TDB_DATA key,
  62                       TDB_DATA data, int flags);
  63 TDB_DATA dbwrap_fetch(struct db_context *db, TALLOC_CTX *mem_ctx,
  64                       TDB_DATA key);
  65 NTSTATUS dbwrap_delete_bystring(struct db_context *db, const char *key);
  66 NTSTATUS dbwrap_store_bystring(struct db_context *db, const char *key,
  67                                TDB_DATA data, int flags);
  68 TDB_DATA dbwrap_fetch_bystring(struct db_context *db, TALLOC_CTX *mem_ctx,
  69                                const char *key);
  70
  71 /* The following definitions come from lib/dbwrap_util.c  */
  72
  73 int32_t dbwrap_fetch_int32(struct db_context *db, const char *keystr);
  74 int dbwrap_store_int32(struct db_context *db, const char *keystr, int32_t v);
  75 bool dbwrap_fetch_uint32(struct db_context *db, const char *keystr,
  76                          uint32_t *val);
  77 int dbwrap_store_uint32(struct db_context *db, const char *keystr, uint32_t v);
  78 NTSTATUS dbwrap_change_uint32_atomic(struct db_context *db, const char *keystr,
  79                                      uint32_t *oldval, uint32_t change_val);
  80 NTSTATUS dbwrap_trans_change_uint32_atomic(struct db_context *db,
  81                                            const char *keystr,
  82                                            uint32_t *oldval,
  83                                            uint32_t change_val);
  84 NTSTATUS dbwrap_change_int32_atomic(struct db_context *db, const char *keystr,
  85                                     int32_t *oldval, int32_t change_val);
  86 NTSTATUS dbwrap_trans_change_int32_atomic(struct db_context *db,
  87                                           const char *keystr,
  88                                           int32_t *oldval,
  89                                           int32_t change_val);
  90 NTSTATUS dbwrap_trans_store(struct db_context *db, TDB_DATA key, TDB_DATA dbuf,
  91                             int flag);
  92 NTSTATUS dbwrap_trans_delete(struct db_context *db, TDB_DATA key);
  93 NTSTATUS dbwrap_trans_store_int32(struct db_context *db, const char *keystr,
  94                                   int32_t v);
  95 NTSTATUS dbwrap_trans_store_uint32(struct db_context *db, const char *keystr,
  96                                    uint32_t v);
  97 NTSTATUS dbwrap_trans_store_bystring(struct db_context *db, const char *key,
  98                                      TDB_DATA data, int flags);
  99 NTSTATUS dbwrap_trans_delete_bystring(struct db_context *db, const char *key);
 100 NTSTATUS dbwrap_trans_do(struct db_context *db,
 101                          NTSTATUS (*action)(struct db_context *, void *),
 102                          void *private_data);
 103 NTSTATUS dbwrap_trans_traverse(struct db_context *db,
 104                                int (*f)(struct db_record*, void*),
 105                                void *private_data);
 106 NTSTATUS dbwrap_traverse(struct db_context *db,
 107                          int (*f)(struct db_record*, void*),
 108                          void *private_data);
 109
 110 NTSTATUS dbwrap_delete_bystring_upper(struct db_context *db, const char *key);
 111 NTSTATUS dbwrap_store_bystring_upper(struct db_context *db, const char *key,
 112                                      TDB_DATA data, int flags);
 113 TDB_DATA dbwrap_fetch_bystring_upper(struct db_context *db, TALLOC_CTX *mem_ctx,
 114                                      const char *key);
 115
 116 #endif /* __DBWRAP_H__ */