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Viewing changes to storage/myisam/mi_rprev.c

  • Committer: Monty Taylor
  • Date: 2008-07-05 22:08:52 UTC
  • mto: This revision was merged to the branch mainline in revision 77.
  • Revision ID: monty@inaugust.com-20080705220852-cqd9t6tfkhvlcf73
Removed HAVE_LONG_LONG, as this is now assumed.

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storage/myisam/mi_rprev.c
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           based on the position of the last used key!
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        */
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int mi_rprev(MI_INFO *info, unsigned char *buf, int inx)
 
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int mi_rprev(MI_INFO *info, uchar *buf, int inx)
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{
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  int error,changed;
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  register uint32_t flag;
 
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  register uint flag;
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  MYISAM_SHARE *share=info->s;
 
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  DBUG_ENTER("mi_rprev");
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  if ((inx = _mi_check_index(info,inx)) < 0)
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    return(my_errno);
 
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    DBUG_RETURN(my_errno);
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  flag=SEARCH_SMALLER;                          /* Read previous */
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  if (info->lastpos == HA_OFFSET_ERROR && info->update & HA_STATE_NEXT_FOUND)
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    flag=0;                                     /* Read last */
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  if (fast_mi_readinfo(info))
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    return(my_errno);
 
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    DBUG_RETURN(my_errno);
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  changed=_mi_test_if_changed(info);
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  if (share->concurrent_insert)
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    rw_rdlock(&share->key_root_lock[inx]);
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  }
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  else if (!buf)
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  {
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    return(info->lastpos==HA_OFFSET_ERROR ? my_errno : 0);
 
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    DBUG_RETURN(info->lastpos==HA_OFFSET_ERROR ? my_errno : 0);
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  }
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  else if (!(*info->read_record)(info,info->lastpos,buf))
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  {
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    info->update|= HA_STATE_AKTIV;              /* Record is read */
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    return(0);
 
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    DBUG_RETURN(0);
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  }
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  return(my_errno);
 
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  DBUG_RETURN(my_errno);
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} /* mi_rprev */