## root/include/dbengsrt.h

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## INCLUDED FROM

    /* Header for the low-level Bbuuzzb sort routines.
       Rick Smereka, Copyright (C) 2002.

       This program is free software; you can redistribute it and/or modify
       it under the terms of the GNU General Public License as published by
       the Free Software Foundation; either version 2 of the License, or
       (at your option) any later version.

       This program 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 General Public License for more details.

       You should have received a copy of the GNU General Public License
       along with this program; if not, get a copy via the Internet at
       http://gnu.org/copyleft/gpl.html or write to the Free Software
       Foundation, Inc., 59 Temple Place, Suite 330, Boston,
       MA 02111-1307 USA

       You can contact the author via email at rsmereka@future-lab.com

       Original Linux version Aug/2002, Rick Smereka

       Ported to Debian Linux. Nov/2002, Rick Smereka

       Ported to QNX, 32bit Windows and DOS. Dec/2002, Rick Smereka */

    /* sort element node */

    struct dbeng_sort_node
       {
       char *arec;
       struct dbeng_sort_node *next;
       };

    /* sort spec node */

    struct dbeng_sort_spec
       {
       int order;
       int field_num;
       struct dbeng_sort_spec *next;
       };

    /* sort bin file node */

    struct dbeng_sort_bin
       {
       struct dbeng_table *abin;
       struct dbeng_sort_bin *next;
       };

    /* sort orders */

    #define DBENGSRT_ORDER_ASCENDING 1
    #define DBENGSRT_ORDER_DESCENDING 2

    /* NULL pointer defines */

    #define DBENGSRT_ROT_NULL ((struct dbeng_sort_node *)NULL)
    #define DBENGSRT_SOT_NULL ((struct dbeng_sort_spec *)NULL)
    #define DBENGSRT_BOT_NULL ((struct dbeng_sort_bin *)NULL)

    /* 'dbeng_sort_bll_delete' flags */

    #define DBENGSRT_NDELBIN 1
    #define DBENGSRT_DELBIN 2

    /* default maximums */

    #define DBENGSRT_MAX_SORT_ALLOC 100000L
    #define DBENGSRT_MAX_OPEN_BIN 10

    #ifdef __cplusplus
    extern "C"
    {
    #endif

    int dbeng_sort(struct dbeng_table *, char *);
    int dbeng_sort_get_max_mem(struct dbeng_table *, long *);
    int dbeng_sort_set_max_mem(struct dbeng_table *, long);
    int dbeng_sort_get_max_open_bin(struct dbeng_table *, int *);
    int dbeng_sort_set_max_open_bin(struct dbeng_table *, int);

    #ifdef __cplusplus
    }
    #endif

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