hp_rsame.cc

/* Copyright (C) 2000-2002 MySQL AB

   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; version 2 of the License.

   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, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA */

/* re-read current record */

#include "heap_priv.h"
#include <drizzled/error_t.h>

  /* If inx != -1 the new record is read according to index
     (for next/prev). Record must in this case point to last record
     Returncodes:
     0 = Ok.
     HA_ERR_RECORD_DELETED = Record was removed
     HA_ERR_KEY_NOT_FOUND = Record not found with key
  */

int heap_rsame(register HP_INFO *info, unsigned char *record, int inx)
{
  HP_SHARE *share= info->getShare();

  test_active(info);
  if (get_chunk_status(&share->recordspace, info->current_ptr) == CHUNK_STATUS_ACTIVE)
  {
    if (inx < -1 || inx >= (int) share->keys)
    {
      return(errno= drizzled::HA_ERR_WRONG_INDEX);
    }
    else if (inx != -1)
    {
      info->lastinx=inx;
      hp_make_key(share->keydef + inx, &info->lastkey[0], record);
      if (!hp_search(info, share->keydef + inx, &info->lastkey[0], 3))
      {
  info->update=0;
  return(errno);
      }
    }
    hp_extract_record(share, record, info->current_ptr);
    return(0);
  }
  info->update=0;

  return(errno= drizzled::HA_ERR_RECORD_DELETED);
}