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Viewing changes to storage/myisam/mi_rsame.c

  • Committer: brian
  • Date: 2008-06-25 05:29:13 UTC
  • Revision ID: brian@localhost.localdomain-20080625052913-6upwo0jsrl4lnapl
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storage/myisam/mi_rsame.c
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   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
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#include "myisamdef.h"
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#include <drizzled/util/test.h>
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        /*
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        ** Find current row with read on position or read on key
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        */
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int mi_rsame(MI_INFO *info, unsigned char *record, int inx)
 
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int mi_rsame(MI_INFO *info, uchar *record, int inx)
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{
 
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  DBUG_ENTER("mi_rsame");
 
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  if (inx != -1 && ! mi_is_key_active(info->s->state.key_map, inx))
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  {
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    return(my_errno=HA_ERR_WRONG_INDEX);
 
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    DBUG_RETURN(my_errno=HA_ERR_WRONG_INDEX);
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  }
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  if (info->lastpos == HA_OFFSET_ERROR || info->update & HA_STATE_DELETED)
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  {
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    return(my_errno=HA_ERR_KEY_NOT_FOUND);      /* No current record */
 
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    DBUG_RETURN(my_errno=HA_ERR_KEY_NOT_FOUND); /* No current record */
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  }
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  info->update&= (HA_STATE_CHANGED | HA_STATE_ROW_CHANGED);
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  /* Read row from data file */
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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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  if (inx >= 0)
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  {
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    info->lastkey_length=_mi_make_key(info,(uint) inx,info->lastkey,record,
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                                      info->lastpos);
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    if (info->s->concurrent_insert)
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      pthread_rwlock_rdlock(&info->s->key_root_lock[inx]);
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    _mi_search(info,info->s->keyinfo+inx,info->lastkey, USE_WHOLE_KEY,
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               SEARCH_SAME,
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               info->s->state.key_root[inx]);
 
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      rw_rdlock(&info->s->key_root_lock[inx]);
 
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    VOID(_mi_search(info,info->s->keyinfo+inx,info->lastkey, USE_WHOLE_KEY,
 
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                    SEARCH_SAME,
 
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                    info->s->state.key_root[inx]));
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    if (info->s->concurrent_insert)
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      pthread_rwlock_unlock(&info->s->key_root_lock[inx]);
 
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      rw_unlock(&info->s->key_root_lock[inx]);
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  }
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  if (!(*info->read_record)(info,info->lastpos,record))
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    return(0);
 
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    DBUG_RETURN(0);
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  if (my_errno == HA_ERR_RECORD_DELETED)
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    my_errno=HA_ERR_KEY_NOT_FOUND;
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  return(my_errno);
 
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  DBUG_RETURN(my_errno);
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} /* mi_rsame */