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into a88-113-38-195.elisa-laajakaista.fi:/home/my/bk/mysql-5.1-marvel BitKeeper/etc/ignore: auto-union client/mysql.cc: Auto merged client/mysqldump.c: Auto merged client/mysqltest.c: Auto merged extra/comp_err.c: Auto merged include/decimal.h: Auto merged include/my_getopt.h: Auto merged include/my_global.h: Auto merged include/my_sys.h: Auto merged include/mysql.h: Auto merged mysys/array.c: Auto merged mysys/hash.c: Auto merged mysys/typelib.c: Auto merged sql/derror.cc: Auto merged sql/event_data_objects.cc: Auto merged sql/event_queue.cc: Auto merged sql/field.cc: Auto merged sql/filesort.cc: Auto merged sql/ha_ndbcluster.h: Auto merged sql/ha_ndbcluster_binlog.cc: Auto merged sql/ha_partition.cc: Auto merged sql/ha_partition.h: Auto merged sql/handler.cc: Auto merged sql/handler.h: Auto merged sql/item.cc: Auto merged sql/item.h: Auto merged sql/item_cmpfunc.cc: Auto merged sql/item_func.cc: Auto merged sql/item_subselect.cc: Auto merged sql/item_sum.cc: Auto merged sql/item_timefunc.cc: Auto merged sql/item_timefunc.h: Auto merged sql/log.cc: Auto merged sql/log_event.cc: Auto merged sql/my_decimal.cc: Auto merged sql/my_decimal.h: Auto merged sql/mysql_priv.h: Auto merged sql/opt_range.cc: Auto merged sql/opt_range.h: Auto merged sql/opt_sum.cc: Auto merged sql/protocol.cc: Auto merged sql/protocol.h: Auto merged sql/rpl_utility.h: Auto merged sql/slave.cc: Auto merged sql/sp.cc: Auto merged sql/sp_head.cc: Auto merged sql/sp_head.h: Auto merged sql/sql_cache.cc: Auto merged sql/sql_class.cc: Auto merged sql/sql_class.h: Auto merged sql/sql_connect.cc: Auto merged sql/sql_delete.cc: Auto merged sql/sql_lex.cc: Auto merged sql/sql_lex.h: Auto merged sql/sql_load.cc: Auto merged sql/sql_parse.cc: Auto merged sql/sql_partition.cc: Auto merged sql/sql_prepare.cc: Auto merged sql/sql_repl.cc: Auto merged sql/sql_select.cc: Auto merged sql/sql_select.h: Auto merged sql/sql_show.cc: Auto merged sql/sql_trigger.cc: Auto merged sql/sql_union.cc: Auto merged sql/sql_update.cc: Auto merged sql/sql_view.cc: Auto merged sql/structs.h: Auto merged sql/table.h: Auto merged sql/tztime.cc: Auto merged sql/unireg.cc: Auto merged storage/example/ha_example.cc: Auto merged storage/federated/ha_federated.cc: Auto merged storage/heap/ha_heap.cc: Auto merged storage/innobase/handler/ha_innodb.h: Auto merged storage/myisam/ha_myisam.cc: Auto merged storage/myisam/sort.c: Auto merged storage/myisammrg/ha_myisammrg.cc: Auto merged storage/ndb/tools/restore/consumer_restore.cpp: Auto merged strings/decimal.c: Auto merged strings/strtod.c: Auto merged include/hash.h: Manual merge with 5.1 main tree. mysys/my_getopt.c: Manual merge with 5.1 main tree. sql/field.h: Manual merge with 5.1 main tree. sql/ha_ndbcluster.cc: Manual merge with 5.1 main tree. sql/item_cmpfunc.h: Manual merge with 5.1 main tree. sql/item_create.cc: Manual merge with 5.1 main tree. sql/item_func.h: Manual merge with 5.1 main tree. sql/key.cc: Manual merge with 5.1 main tree. sql/lock.cc: Manual merge with 5.1 main tree. sql/mysqld.cc: Manual merge with 5.1 main tree. sql/set_var.cc: Manual merge with 5.1 main tree. sql/set_var.h: Manual merge with 5.1 main tree. sql/sql_base.cc: Manual merge with 5.1 main tree. sql/sql_handler.cc: Manual merge with 5.1 main tree. sql/sql_insert.cc: Manual merge with 5.1 main tree. sql/sql_plugin.cc: Manual merge with 5.1 main tree. sql/sql_table.cc: Manual merge with 5.1 main tree. sql/sql_yacc.yy: Manual merge with 5.1 main tree. sql/table.cc: Manual merge with 5.1 main tree. storage/innobase/handler/ha_innodb.cc: Manual merge with 5.1 main tree. storage/ndb/src/mgmsrv/InitConfigFileParser.cpp: Manual merge with 5.1 main tree. storage/ndb/tools/restore/restore_main.cpp: Manual merge with 5.1 main tree.
77 lines
2.7 KiB
C
77 lines
2.7 KiB
C
/* Copyright (C) 2000 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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/* Dynamic hashing of record with different key-length */
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#ifndef _hash_h
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#define _hash_h
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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Overhead to store an element in hash
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Can be used to approximate memory consumption for a hash
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*/
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#define HASH_OVERHEAD (sizeof(char*)*2)
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/* flags for hash_init */
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#define HASH_UNIQUE 1 /* hash_insert fails on duplicate key */
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typedef uchar *(*hash_get_key)(const uchar *,size_t*,my_bool);
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typedef void (*hash_free_key)(void *);
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typedef struct st_hash {
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size_t key_offset,key_length; /* Length of key if const length */
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size_t blength;
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ulong records;
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uint flags;
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DYNAMIC_ARRAY array; /* Place for hash_keys */
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hash_get_key get_key;
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void (*free)(void *);
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CHARSET_INFO *charset;
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} HASH;
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/* A search iterator state */
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typedef uint HASH_SEARCH_STATE;
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#define hash_init(A,B,C,D,E,F,G,H) _hash_init(A,B,C,D,E,F,G, H CALLER_INFO)
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my_bool _hash_init(HASH *hash, CHARSET_INFO *charset,
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ulong default_array_elements, size_t key_offset,
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size_t key_length, hash_get_key get_key,
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void (*free_element)(void*), uint flags CALLER_INFO_PROTO);
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void hash_free(HASH *tree);
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void my_hash_reset(HASH *hash);
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uchar *hash_element(HASH *hash,ulong idx);
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uchar *hash_search(const HASH *info, const uchar *key, size_t length);
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uchar *hash_first(const HASH *info, const uchar *key, size_t length,
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HASH_SEARCH_STATE *state);
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uchar *hash_next(const HASH *info, const uchar *key, size_t length,
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HASH_SEARCH_STATE *state);
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my_bool my_hash_insert(HASH *info,const uchar *data);
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my_bool hash_delete(HASH *hash,uchar *record);
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my_bool hash_update(HASH *hash,uchar *record,uchar *old_key,size_t old_key_length);
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void hash_replace(HASH *hash, HASH_SEARCH_STATE *state, uchar *new_row);
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my_bool hash_check(HASH *hash); /* Only in debug library */
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#define hash_clear(H) bzero((char*) (H),sizeof(*(H)))
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#define hash_inited(H) ((H)->array.buffer != 0)
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#define hash_init_opt(A,B,C,D,E,F,G,H) \
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(!hash_inited(A) && _hash_init(A,B,C,D,E,F,G, H CALLER_INFO))
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#ifdef __cplusplus
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}
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#endif
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#endif
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