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Diffstat (limited to 'storage/innodb_plugin/dict/dict0mem.c')
-rw-r--r-- | storage/innodb_plugin/dict/dict0mem.c | 319 |
1 files changed, 0 insertions, 319 deletions
diff --git a/storage/innodb_plugin/dict/dict0mem.c b/storage/innodb_plugin/dict/dict0mem.c deleted file mode 100644 index 6458cbab92d..00000000000 --- a/storage/innodb_plugin/dict/dict0mem.c +++ /dev/null @@ -1,319 +0,0 @@ -/***************************************************************************** - -Copyright (c) 1996, 2009, Innobase Oy. All Rights Reserved. - -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; version 2 of the License. - -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 - -*****************************************************************************/ - -/******************************************************************//** -@file dict/dict0mem.c -Data dictionary memory object creation - -Created 1/8/1996 Heikki Tuuri -***********************************************************************/ - -#include "dict0mem.h" - -#ifdef UNIV_NONINL -#include "dict0mem.ic" -#endif - -#include "rem0rec.h" -#include "data0type.h" -#include "mach0data.h" -#include "dict0dict.h" -#ifndef UNIV_HOTBACKUP -# include "lock0lock.h" -#endif /* !UNIV_HOTBACKUP */ - -#define DICT_HEAP_SIZE 100 /*!< initial memory heap size when - creating a table or index object */ - -/**********************************************************************//** -Creates a table memory object. -@return own: table object */ -UNIV_INTERN -dict_table_t* -dict_mem_table_create( -/*==================*/ - const char* name, /*!< in: table name */ - ulint space, /*!< in: space where the clustered index of - the table is placed; this parameter is - ignored if the table is made a member of - a cluster */ - ulint n_cols, /*!< in: number of columns */ - ulint flags) /*!< in: table flags */ -{ - dict_table_t* table; - mem_heap_t* heap; - - ut_ad(name); - ut_a(!(flags & (~0 << DICT_TF_BITS))); - - heap = mem_heap_create(DICT_HEAP_SIZE); - - table = mem_heap_zalloc(heap, sizeof(dict_table_t)); - - table->heap = heap; - - table->flags = (unsigned int) flags; - table->name = mem_heap_strdup(heap, name); - table->space = (unsigned int) space; - table->n_cols = (unsigned int) (n_cols + DATA_N_SYS_COLS); - - table->cols = mem_heap_alloc(heap, (n_cols + DATA_N_SYS_COLS) - * sizeof(dict_col_t)); - -#ifndef UNIV_HOTBACKUP - table->autoinc_lock = mem_heap_alloc(heap, lock_get_size()); - - mutex_create(&table->autoinc_mutex, SYNC_DICT_AUTOINC_MUTEX); - - table->autoinc = 0; - - /* The number of transactions that are either waiting on the - AUTOINC lock or have been granted the lock. */ - table->n_waiting_or_granted_auto_inc_locks = 0; -#endif /* !UNIV_HOTBACKUP */ - - ut_d(table->magic_n = DICT_TABLE_MAGIC_N); - return(table); -} - -/****************************************************************//** -Free a table memory object. */ -UNIV_INTERN -void -dict_mem_table_free( -/*================*/ - dict_table_t* table) /*!< in: table */ -{ - ut_ad(table); - ut_ad(table->magic_n == DICT_TABLE_MAGIC_N); - ut_d(table->cached = FALSE); - -#ifndef UNIV_HOTBACKUP - mutex_free(&(table->autoinc_mutex)); -#endif /* UNIV_HOTBACKUP */ - mem_heap_free(table->heap); -} - -/****************************************************************//** -Append 'name' to 'col_names'. @see dict_table_t::col_names -@return new column names array */ -static -const char* -dict_add_col_name( -/*==============*/ - const char* col_names, /*!< in: existing column names, or - NULL */ - ulint cols, /*!< in: number of existing columns */ - const char* name, /*!< in: new column name */ - mem_heap_t* heap) /*!< in: heap */ -{ - ulint old_len; - ulint new_len; - ulint total_len; - char* res; - - ut_ad(!cols == !col_names); - - /* Find out length of existing array. */ - if (col_names) { - const char* s = col_names; - ulint i; - - for (i = 0; i < cols; i++) { - s += strlen(s) + 1; - } - - old_len = s - col_names; - } else { - old_len = 0; - } - - new_len = strlen(name) + 1; - total_len = old_len + new_len; - - res = mem_heap_alloc(heap, total_len); - - if (old_len > 0) { - memcpy(res, col_names, old_len); - } - - memcpy(res + old_len, name, new_len); - - return(res); -} - -/**********************************************************************//** -Adds a column definition to a table. */ -UNIV_INTERN -void -dict_mem_table_add_col( -/*===================*/ - dict_table_t* table, /*!< in: table */ - mem_heap_t* heap, /*!< in: temporary memory heap, or NULL */ - const char* name, /*!< in: column name, or NULL */ - ulint mtype, /*!< in: main datatype */ - ulint prtype, /*!< in: precise type */ - ulint len) /*!< in: precision */ -{ - dict_col_t* col; -#ifndef UNIV_HOTBACKUP - ulint mbminlen; - ulint mbmaxlen; -#endif /* !UNIV_HOTBACKUP */ - ulint i; - - ut_ad(table); - ut_ad(table->magic_n == DICT_TABLE_MAGIC_N); - ut_ad(!heap == !name); - - i = table->n_def++; - - if (name) { - if (UNIV_UNLIKELY(table->n_def == table->n_cols)) { - heap = table->heap; - } - if (UNIV_LIKELY(i) && UNIV_UNLIKELY(!table->col_names)) { - /* All preceding column names are empty. */ - char* s = mem_heap_zalloc(heap, table->n_def); - table->col_names = s; - } - - table->col_names = dict_add_col_name(table->col_names, - i, name, heap); - } - - col = dict_table_get_nth_col(table, i); - - col->ind = (unsigned int) i; - col->ord_part = 0; - - col->mtype = (unsigned int) mtype; - col->prtype = (unsigned int) prtype; - col->len = (unsigned int) len; - -#ifndef UNIV_HOTBACKUP - dtype_get_mblen(mtype, prtype, &mbminlen, &mbmaxlen); - - col->mbminlen = (unsigned int) mbminlen; - col->mbmaxlen = (unsigned int) mbmaxlen; -#endif /* !UNIV_HOTBACKUP */ -} - -/**********************************************************************//** -Creates an index memory object. -@return own: index object */ -UNIV_INTERN -dict_index_t* -dict_mem_index_create( -/*==================*/ - const char* table_name, /*!< in: table name */ - const char* index_name, /*!< in: index name */ - ulint space, /*!< in: space where the index tree is - placed, ignored if the index is of - the clustered type */ - ulint type, /*!< in: DICT_UNIQUE, - DICT_CLUSTERED, ... ORed */ - ulint n_fields) /*!< in: number of fields */ -{ - dict_index_t* index; - mem_heap_t* heap; - - ut_ad(table_name && index_name); - - heap = mem_heap_create(DICT_HEAP_SIZE); - index = mem_heap_zalloc(heap, sizeof(dict_index_t)); - - index->heap = heap; - - index->type = type; -#ifndef UNIV_HOTBACKUP - index->space = (unsigned int) space; -#endif /* !UNIV_HOTBACKUP */ - index->name = mem_heap_strdup(heap, index_name); - index->table_name = table_name; - index->n_fields = (unsigned int) n_fields; - index->fields = mem_heap_alloc(heap, 1 + n_fields - * sizeof(dict_field_t)); - /* The '1 +' above prevents allocation - of an empty mem block */ -#ifdef UNIV_DEBUG - index->magic_n = DICT_INDEX_MAGIC_N; -#endif /* UNIV_DEBUG */ - return(index); -} - -/**********************************************************************//** -Creates and initializes a foreign constraint memory object. -@return own: foreign constraint struct */ -UNIV_INTERN -dict_foreign_t* -dict_mem_foreign_create(void) -/*=========================*/ -{ - dict_foreign_t* foreign; - mem_heap_t* heap; - - heap = mem_heap_create(100); - - foreign = mem_heap_zalloc(heap, sizeof(dict_foreign_t)); - - foreign->heap = heap; - - return(foreign); -} - -/**********************************************************************//** -Adds a field definition to an index. NOTE: does not take a copy -of the column name if the field is a column. The memory occupied -by the column name may be released only after publishing the index. */ -UNIV_INTERN -void -dict_mem_index_add_field( -/*=====================*/ - dict_index_t* index, /*!< in: index */ - const char* name, /*!< in: column name */ - ulint prefix_len) /*!< in: 0 or the column prefix length - in a MySQL index like - INDEX (textcol(25)) */ -{ - dict_field_t* field; - - ut_ad(index); - ut_ad(index->magic_n == DICT_INDEX_MAGIC_N); - - index->n_def++; - - field = dict_index_get_nth_field(index, index->n_def - 1); - - field->name = name; - field->prefix_len = (unsigned int) prefix_len; -} - -/**********************************************************************//** -Frees an index memory object. */ -UNIV_INTERN -void -dict_mem_index_free( -/*================*/ - dict_index_t* index) /*!< in: index */ -{ - ut_ad(index); - ut_ad(index->magic_n == DICT_INDEX_MAGIC_N); - - mem_heap_free(index->heap); -} |