/*
 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*
 * Copyright 1987, 1988 by MIT Student Information Processing Board
 *
 * For copyright information, see copyright.h.
 */

#include "copyright.h"
#include "ss_internal.h"

#define ssrt ss_request_table   /* for some readable code... */

void
ss_add_request_table(sci_idx, rqtbl_ptr, position, code_ptr)
        int sci_idx;
        ssrt *rqtbl_ptr;
        int position;           /* 1 -> becomes second... */
        int *code_ptr;
{
        register ss_data *info;
        register int i, size;

        info = ss_info(sci_idx);
        for (size=0; info->rqt_tables[size] != (ssrt *)NULL; size++)
                ;
        /* size == C subscript of NULL == #elements */
        size += 2;              /* new element, and NULL */
        info->rqt_tables = (ssrt **)realloc(info->rqt_tables,
                                            size*sizeof(ssrt));
        if (info->rqt_tables == (ssrt **)NULL) {
                *code_ptr = errno;
                return;
        }
        if (position > size - 2)
                position = size - 2;

        if (size > 1)
                for (i = size - 2; i >= position; i--)
                        info->rqt_tables[i+1] = info->rqt_tables[i];

        info->rqt_tables[position] = rqtbl_ptr;
        info->rqt_tables[size-1] = (ssrt *)NULL;
        *code_ptr = 0;
}

void
ss_delete_request_table(sci_idx, rqtbl_ptr, code_ptr)
     int sci_idx;
     ssrt *rqtbl_ptr;
     int *code_ptr;
{
     register ss_data *info;
     register ssrt **rt1, **rt2;

     *code_ptr = SS_ET_TABLE_NOT_FOUND;
     info = ss_info(sci_idx);
     rt1 = info->rqt_tables;
     for (rt2 = rt1; *rt1; rt1++) {
          if (*rt1 != rqtbl_ptr) {
               *rt2++ = *rt1;
               *code_ptr = 0;
          }
     }
     *rt2 = (ssrt *)NULL;
     return;
}