diff options
Diffstat (limited to 'sql/ha_isammrg.cc')
| -rw-r--r-- | sql/ha_isammrg.cc | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/sql/ha_isammrg.cc b/sql/ha_isammrg.cc deleted file mode 100644 index c63548ec5cf..00000000000 --- a/sql/ha_isammrg.cc +++ /dev/null @@ -1,211 +0,0 @@ -/* 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 */ - - -#ifdef __GNUC__ -#pragma implementation // gcc: Class implementation -#endif - -#include "mysql_priv.h" -#ifdef HAVE_ISAM -#include <m_ctype.h> -#ifndef MASTER -#include "../srclib/merge/mrg_def.h" -#else -#include "../merge/mrg_def.h" -#endif -#include "ha_isammrg.h" - -/***************************************************************************** -** ISAM MERGE tables -*****************************************************************************/ - -const char **ha_isammrg::bas_ext() const -{ static const char *ext[]= { ".MRG", NullS }; return ext; } - -int ha_isammrg::open(const char *name, int mode, uint test_if_locked) -{ - char name_buff[FN_REFLEN]; - if (!(file=mrg_open(fn_format(name_buff,name,"","",2 | 4), mode, - test_if_locked))) - return (my_errno ? my_errno : -1); - - if (!(test_if_locked == HA_OPEN_WAIT_IF_LOCKED || - test_if_locked == HA_OPEN_ABORT_IF_LOCKED)) - mrg_extra(file,HA_EXTRA_NO_WAIT_LOCK); - info(HA_STATUS_NO_LOCK | HA_STATUS_VARIABLE | HA_STATUS_CONST); - if (!(test_if_locked & HA_OPEN_WAIT_IF_LOCKED)) - mrg_extra(file,HA_EXTRA_WAIT_LOCK); - if (table->reclength != mean_rec_length) - { - DBUG_PRINT("error",("reclength: %d mean_rec_length: %d", - table->reclength, mean_rec_length)); - mrg_close(file); - file=0; - return ER_WRONG_MRG_TABLE; - } - return (0); -} - -int ha_isammrg::close(void) -{ - return !mrg_close(file) ? 0 : my_errno ? my_errno : -1; -} - -uint ha_isammrg::min_record_length(uint options) const -{ - return (options & HA_OPTION_PACK_RECORD) ? 1 : 5; -} - -int ha_isammrg::write_row(byte * buf) -{ - return (my_errno=HA_ERR_WRONG_COMMAND); -} - -int ha_isammrg::update_row(const byte * old_data, byte * new_data) -{ - statistic_increment(table->in_use->status_var.ha_update_count, &LOCK_status); - if (table->timestamp_field_type & TIMESTAMP_AUTO_SET_ON_UPDATE) - table->timestamp_field->set_time(); - return !mrg_update(file,old_data,new_data) ? 0 : my_errno ? my_errno : -1; -} - -int ha_isammrg::delete_row(const byte * buf) -{ - statistic_increment(table->in_use->status_var.ha_delete_count, &LOCK_status); - return !mrg_delete(file,buf) ? 0 : my_errno ? my_errno : -1; -} - -int ha_isammrg::index_read(byte * buf, const byte * key, - uint key_len, enum ha_rkey_function find_flag) -{ - return (my_errno=HA_ERR_WRONG_COMMAND); -} - -int ha_isammrg::index_read_idx(byte * buf, uint index, const byte * key, - uint key_len, enum ha_rkey_function find_flag) -{ - return (my_errno=HA_ERR_WRONG_COMMAND); -} - -int ha_isammrg::index_next(byte * buf) -{ - return (my_errno=HA_ERR_WRONG_COMMAND); -} - -int ha_isammrg::index_prev(byte * buf) -{ - return (my_errno=HA_ERR_WRONG_COMMAND); -} - -int ha_isammrg::index_first(byte * buf) -{ - return (my_errno=HA_ERR_WRONG_COMMAND); -} - -int ha_isammrg::index_last(byte * buf) -{ - return (my_errno=HA_ERR_WRONG_COMMAND); -} - -int ha_isammrg::rnd_init(bool scan) -{ - return !mrg_extra(file,HA_EXTRA_RESET) ? 0 : my_errno ? my_errno : -1; -} - -int ha_isammrg::rnd_next(byte *buf) -{ - statistic_increment(table->in_use->status_var.ha_read_rnd_next_count, - &LOCK_status); - int error=mrg_rrnd(file, buf, ~(mrg_off_t) 0); - table->status=error ? STATUS_NOT_FOUND: 0; - return !error ? 0 : my_errno ? my_errno : -1; -} - -int ha_isammrg::rnd_pos(byte * buf, byte *pos) -{ - statistic_increment(table->in_use->status_var.ha_read_rnd_count, - &LOCK_status); - int error=mrg_rrnd(file, buf, (ulong) my_get_ptr(pos,ref_length)); - table->status=error ? STATUS_NOT_FOUND: 0; - return !error ? 0 : my_errno ? my_errno : -1; -} - -void ha_isammrg::position(const byte *record) -{ - ulong position= mrg_position(file); - my_store_ptr(ref, ref_length, (my_off_t) position); -} - - -void ha_isammrg::info(uint flag) -{ - MERGE_INFO info; - (void) mrg_info(file,&info,flag); - records = (ha_rows) info.records; - deleted = (ha_rows) info.deleted; - data_file_length=info.data_file_length; - errkey = info.errkey; - table->keys_in_use.clear_all(); // No keys yet - table->db_options_in_use = info.options; - mean_rec_length=info.reclength; - block_size=0; - update_time=0; - ref_length=4; // Should be big enough -} - - -int ha_isammrg::extra(enum ha_extra_function operation) -{ - return !mrg_extra(file,operation) ? 0 : my_errno ? my_errno : -1; -} - -int ha_isammrg::external_lock(THD *thd, int lock_type) -{ - return !mrg_lock_database(file,lock_type) ? 0 : my_errno ? my_errno : -1; -} - -uint ha_isammrg::lock_count(void) const -{ - return file->tables; -} - -THR_LOCK_DATA **ha_isammrg::store_lock(THD *thd, - THR_LOCK_DATA **to, - enum thr_lock_type lock_type) -{ - MRG_TABLE *open_table; - - for (open_table=file->open_tables ; - open_table != file->end_table ; - open_table++) - { - *(to++)= &open_table->table->lock; - if (lock_type != TL_IGNORE && open_table->table->lock.type == TL_UNLOCK) - open_table->table->lock.type=lock_type; - } - return to; -} - - -int ha_isammrg::create(const char *name, register TABLE *form, - HA_CREATE_INFO *create_info) - -{ - char buff[FN_REFLEN]; - return mrg_create(fn_format(buff,name,"","",2+4+16),0); -} -#endif /* HAVE_ISAM */ |