external/gpl2/xcvs/dist/src/myndbm.h

   1 /*
   2  * Copyright (C) 1994-2005 The Free Software Foundation, Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2, or (at your option)
   7  * any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #ifdef MY_NDBM
  16
  17 #define DBLKSIZ 4096
  18
  19 typedef struct
  20 {
  21     List *dbm_list;                     /* cached database */
  22     Node *dbm_next;                     /* next key to return for nextkey() */
  23
  24     /* Name of the file to write to if modified is set.  malloc'd.  */
  25     char *name;
  26
  27     /* Nonzero if the database has been modified and dbm_close needs to
  28        write it out to disk.  */
  29     int modified;
  30 } DBM;
  31
  32 typedef struct
  33 {
  34     char *dptr;
  35     int dsize;
  36 } datum;
  37
  38 /*
  39  * So as not to conflict with other dbm_open, etc., routines that may
  40  * be included by someone's libc, all of my emulation routines are prefixed
  41  * by "my" and we define the "standard" ones to be "my" ones here.
  42  */
  43 #define dbm_open        mydbm_open
  44 #define dbm_close       mydbm_close
  45 #define dbm_fetch       mydbm_fetch
  46 #define dbm_firstkey    mydbm_firstkey
  47 #define dbm_nextkey     mydbm_nextkey
  48 #define dbm_store       mydbm_store
  49 #define  DBM_INSERT  0
  50 #define  DBM_REPLACE 1
  51
  52 DBM *mydbm_open (char *file, int flags, int mode);
  53 void mydbm_close (DBM * db);
  54 datum mydbm_fetch (DBM * db, datum key);
  55 datum mydbm_firstkey (DBM * db);
  56 datum mydbm_nextkey (DBM * db);
  57 extern int mydbm_store (DBM *, datum, datum, int);
  58
  59 #endif                          /* MY_NDBM */