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Viewing changes to storage/heap/hp_rrnd.c

  • Committer: Lee
  • Date: 2008-10-30 22:02:01 UTC
  • mto: (572.1.2 devel)
  • mto: This revision was merged to the branch mainline in revision 573.
  • Revision ID: lbieber@lbieber-desktop-20081030220201-elb6qprbzpn7c5a4
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storage/heap/hp_rrnd.c
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA */
 
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   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
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/* Read a record from a random position */
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#include "heap_priv.h"
 
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#include "heapdef.h"
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/*
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           Returns one of following values:
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int heap_rrnd(register HP_INFO *info, unsigned char *record, unsigned char *pos)
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{
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  HP_SHARE *share=info->getShare();
 
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  HP_SHARE *share=info->s;
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  info->lastinx= -1;
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  if (!(info->current_ptr= pos))
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  {
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    info->update= 0;
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    return(errno=  drizzled::HA_ERR_END_OF_FILE);
 
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    return(my_errno= HA_ERR_END_OF_FILE);
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  }
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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(errno= drizzled::HA_ERR_RECORD_DELETED);
 
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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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  hp_extract_record(share, record, info->current_ptr);
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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(errno= HA_ERR_END_OF_FILE);
 
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    return(my_errno= HA_ERR_END_OF_FILE);
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  }
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        /* Find record number pos */
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  if (!info->current_ptr[share->reclength])
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  {
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    info->update= HA_STATE_PREV_FOUND | HA_STATE_NEXT_FOUND;
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    return(errno=HA_ERR_RECORD_DELETED);
 
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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);