lib/tdb_wrap/tdb_wrap.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    database wrap headers
   5
   6    Copyright (C) Andrew Tridgell 2004
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 /* IMPORTANT: tdb_wrap should be always preferred over tdb_context for end consumer functions
  23    it's because if the code will be running inside smbd, then we must use the linked list
  24    of open tdb files, to determine if the tdb we desire is already open
  25    as otherwise, when you close the tdb (even on a different file descriptor),
  26    ALL LOCKS are lost (due to a real screwup in the POSIX specification that nobody has been able to get fixed)
  27 */
  28
  29 #ifndef _TDB_WRAP_H_
  30 #define _TDB_WRAP_H_
  31
  32 #include "tdb.h"
  33
  34 struct tdb_wrap {
  35         struct tdb_context *tdb;
  36 };
  37
  38 struct loadparm_context;
  39
  40 struct tdb_wrap *tdb_wrap_open_(TALLOC_CTX *mem_ctx,
  41                                 const char *name, int hash_size, int tdb_flags,
  42                                 int open_flags, mode_t mode);
  43 struct tdb_wrap *tdb_wrap_open(TALLOC_CTX *mem_ctx,
  44                                const char *name, int hash_size, int tdb_flags,
  45                                int open_flags, mode_t mode,
  46                                struct loadparm_context *lp_ctx);
  47
  48 #endif /* _TDB_WRAP_H_ */