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by brian
clean slate |
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/* Copyright (C) 2000-2002 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/* Scan through all rows */
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1130.3.28
by Monty Taylor
Moved heapdef.h and myisamdef.h to *_priv.h for easier filtering for include guard check. |
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#include "heap_priv.h" |
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by brian
clean slate |
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/*
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Returns one of following values:
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0 = Ok.
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HA_ERR_RECORD_DELETED = Record is deleted.
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HA_ERR_END_OF_FILE = EOF.
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*/
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int heap_scan_init(register HP_INFO *info) |
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{
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info->lastinx= -1; |
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365.2.8
by Monty Taylor
More MAX macros. |
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info->current_record= UINT32_MAX; /* No current record */ |
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by brian
clean slate |
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info->update=0; |
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info->next_block=0; |
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51.3.1
by Jay Pipes
Removed all DBUG symbols from heap storage engine |
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return(0); |
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by brian
clean slate |
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}
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481
by Brian Aker
Remove all of uchar. |
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int heap_scan(register HP_INFO *info, unsigned char *record) |
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by brian
clean slate |
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{
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1697.2.1
by Brian Aker
Encapsulate the internal share for HEAP. |
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HP_SHARE *share=info->getShare(); |
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by Brian Aker
Head ulong conversion. |
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uint32_t pos; |
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by brian
clean slate |
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pos= ++info->current_record; |
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if (pos < info->next_block) |
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{
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244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
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info->current_ptr+=share->recordspace.block.recbuffer; |
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by brian
clean slate |
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}
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else
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{
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244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
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info->next_block+=share->recordspace.block.records_in_block; |
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if (info->next_block >= share->recordspace.chunk_count) |
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by brian
clean slate |
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{
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244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
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info->next_block= share->recordspace.chunk_count; |
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by brian
clean slate |
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if (pos >= info->next_block) |
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{
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info->update= 0; |
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1241.9.57
by Monty Taylor
Oy. Bigger change than I normally like - but this stuff is all intertwined. |
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return(errno= HA_ERR_END_OF_FILE); |
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by brian
clean slate |
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}
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}
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hp_find_record(info, pos); |
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}
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244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
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if (get_chunk_status(&share->recordspace, info->current_ptr) != CHUNK_STATUS_ACTIVE) |
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by brian
clean slate |
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{
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info->update= HA_STATE_PREV_FOUND | HA_STATE_NEXT_FOUND; |
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1241.9.57
by Monty Taylor
Oy. Bigger change than I normally like - but this stuff is all intertwined. |
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return(errno=HA_ERR_RECORD_DELETED); |
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by brian
clean slate |
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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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244.1.1
by Harrison Fisk
Port Ebay/Google memory storage engine variable width columns. |
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hp_extract_record(share, record, info->current_ptr); |
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by brian
clean slate |
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info->current_hash_ptr=0; /* Can't use read_next */ |
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51.3.1
by Jay Pipes
Removed all DBUG symbols from heap storage engine |
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return(0); |
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by brian
clean slate |
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} /* heap_scan */ |