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  • Committer: Harrison Fisk
  • Date: 2008-08-05 05:01:04 UTC
  • mto: (261.1.8 drizzle)
  • mto: This revision was merged to the branch mainline in revision 264.
  • Revision ID: harrison@mysql.com-20080805050104-bz1tt53bp1dg996e
Port Ebay/Google memory storage engine variable width columns.  

See: http://code.google.com/p/mysql-heap-dynamic-rows/

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Lines of Context:
storage/heap/hp_rrnd.c
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    info->update= 0;
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    return(my_errno= HA_ERR_END_OF_FILE);
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  }
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  if (!info->current_ptr[share->reclength])
 
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  if (get_chunk_status(&share->recordspace, info->current_ptr) != CHUNK_STATUS_ACTIVE)
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  {
 
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    /* treat deleted and linked chunks as deleted */
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    info->update= HA_STATE_PREV_FOUND | HA_STATE_NEXT_FOUND;
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    return(my_errno=HA_ERR_RECORD_DELETED);
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  }
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  info->update=HA_STATE_PREV_FOUND | HA_STATE_NEXT_FOUND | HA_STATE_AKTIV;
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  memcpy(record,info->current_ptr,(size_t) share->reclength);
 
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  hp_extract_record(share, record, info->current_ptr);
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  info->current_hash_ptr=0;                     /* Can't use rnext */
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  return(0);
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} /* heap_rrnd */
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int heap_rrnd_old(register HP_INFO *info, uchar *record, ulong pos)
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{
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  HP_SHARE *share=info->s;
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asdfasdf;
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  info->lastinx= -1;
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  if (pos == (ulong) -1)
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  {
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    pos= ++info->current_record;
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    if (pos % share->block.records_in_block &&  /* Quick next record */
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        pos < share->records+share->deleted &&
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        (info->update & HA_STATE_PREV_FOUND))
 
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      pos < share->used_chunk_count+share->deleted_chunk_count &&
 
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            (info->update & HA_STATE_PREV_FOUND))
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    {
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      info->current_ptr+=share->block.recbuffer;
 
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      info->current_ptr+=share->block.recbufferlen;
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      goto end;
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    }
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  }
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  else
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    info->current_record=pos;
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  if (pos >= share->records+share->deleted)
 
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  if (pos >= share->used_chunk_count+share->deleted_chunk_count)
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  {
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    info->update= 0;
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    return(my_errno= HA_ERR_END_OF_FILE);