src/src/dbfunctions.h

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2015 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8
   9 /* Functions for reading/writing exim database files */
  10
  11 void     dbfn_close(open_db *);
  12 int      dbfn_delete(open_db *, const uschar *);
  13 open_db *dbfn_open(uschar *, int, open_db *, BOOL);
  14 void    *dbfn_read_with_length(open_db *, const uschar *, int *);
  15 uschar  *dbfn_scan(open_db *, BOOL, EXIM_CURSOR **);
  16 int      dbfn_write(open_db *, const uschar *, void *, int);
  17
  18 /* Macro for the common call to read without wanting to know the length. */
  19
  20 #define  dbfn_read(a, b) dbfn_read_with_length(a, b, NULL)
  21
  22 /* Berkeley DB uses a callback function to pass back error details. Its API
  23 changed at release 4.3. */
  24
  25 #if defined(USE_DB) && defined(DB_VERSION_STRING)
  26 #if DB_VERSION_MAJOR > 4 || (DB_VERSION_MAJOR == 4 && DB_VERSION_MINOR >= 3)
  27 void     dbfn_bdb_error_callback(const DB_ENV *, const char *, const char *);
  28 #else
  29 void     dbfn_bdb_error_callback(const char *, char *);
  30 #endif
  31 #endif
  32
  33 /* End of dbfunctions.h */