diff options
Diffstat (limited to 'heap/hp_rsame.c')
| -rw-r--r-- | heap/hp_rsame.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/heap/hp_rsame.c b/heap/hp_rsame.c new file mode 100644 index 00000000000..888fb349f5a --- /dev/null +++ b/heap/hp_rsame.c @@ -0,0 +1,57 @@ +/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + +/* re-read current record */ + +#include "heapdef.h" + + /* If inx != -1 the new record is read according to index + (for next/prev). Record must in this case point to last record + Returncodes: + 0 = Ok. + HA_ERR_RECORD_DELETED = Record was removed + HA_ERR_KEY_NOT_FOUND = Record not found with key + */ + +int heap_rsame(register HP_INFO *info, byte *record, int inx) +{ + HP_SHARE *share=info->s; + DBUG_ENTER("heap_rsame"); + + test_active(info); + if (info->current_ptr[share->reclength]) + { + if (inx < -1 || inx >= (int) share->keys) + { + DBUG_RETURN(my_errno=HA_ERR_WRONG_INDEX); + } + else if (inx != -1) + { + info->lastinx=inx; + _hp_make_key(share->keydef+inx,info->lastkey,record); + if (!_hp_search(info,share->keydef+inx,info->lastkey,3)) + { + info->update=0; + DBUG_RETURN(my_errno); + } + } + memcpy(record,info->current_ptr,(size_t) share->reclength); + DBUG_RETURN(0); + } + info->update=0; + + DBUG_RETURN(my_errno=HA_ERR_RECORD_DELETED); +} |