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Viewing changes to storage/heap/hp_rfirst.c

  • Committer: Monty Taylor
  • Date: 2008-07-09 19:33:54 UTC
  • mto: (77.6.1 glibclient-merge)
  • mto: This revision was merged to the branch mainline in revision 124.
  • Revision ID: monty@inaugust.com-20080709193354-vi0pemwf40galnll
First step of sql-common removal (the cheap way) 

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storage/heap/hp_rfirst.c
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/* Read first record with the current key */
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int heap_rfirst(HP_INFO *info, unsigned char *record, int inx)
 
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int heap_rfirst(HP_INFO *info, uchar *record, int inx)
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{
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  HP_SHARE *share = info->s;
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  HP_KEYDEF *keyinfo = share->keydef + inx;
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  DBUG_ENTER("heap_rfirst");
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  info->lastinx= inx;
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  if (keyinfo->algorithm == HA_KEY_ALG_BTREE)
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  {
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    unsigned char *pos;
 
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    uchar *pos;
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    if ((pos = tree_search_edge(&keyinfo->rb_tree, info->parents,
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                                &info->last_pos, offsetof(TREE_ELEMENT, left))))
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    {
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      memcpy(&pos, pos + (*keyinfo->get_key_length)(keyinfo, pos), 
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             sizeof(unsigned char*));
 
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             sizeof(uchar*));
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      info->current_ptr = pos;
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      hp_extract_record(share, record, pos);
 
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      memcpy(record, pos, (size_t)share->reclength);
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      /*
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        If we're performing index_first on a table that was taken from
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        table cache, info->lastkey_len is initialized to previous query.
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    else
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    {
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      my_errno = HA_ERR_END_OF_FILE;
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      return(my_errno);
 
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      DBUG_RETURN(my_errno);
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    }
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    return(0);
 
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    DBUG_RETURN(0);
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  }
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  else
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  {
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    if (!(info->s->records))
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    {
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      my_errno=HA_ERR_END_OF_FILE;
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      return(my_errno);
 
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      DBUG_RETURN(my_errno);
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    }
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    assert(0); /* TODO fix it */
 
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    DBUG_ASSERT(0); /* TODO fix it */
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    info->current_record=0;
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    info->current_hash_ptr=0;
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    info->update=HA_STATE_PREV_FOUND;
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    return(heap_rnext(info,record));
 
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    DBUG_RETURN(heap_rnext(info,record));
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  }
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}