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Diffstat (limited to 'storage/xtradb/include/btr0btr.ic')
| -rw-r--r-- | storage/xtradb/include/btr0btr.ic | 335 |
1 files changed, 0 insertions, 335 deletions
diff --git a/storage/xtradb/include/btr0btr.ic b/storage/xtradb/include/btr0btr.ic deleted file mode 100644 index 0f5f025d6a3..00000000000 --- a/storage/xtradb/include/btr0btr.ic +++ /dev/null @@ -1,335 +0,0 @@ -/***************************************************************************** - -Copyright (c) 1994, 2016, Oracle and/or its affiliates. All Rights Reserved. -Copyright (c) 2016, MariaDB Corporation. - -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., -51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA - -*****************************************************************************/ - -/**************************************************//** -@file include/btr0btr.ic -The B-tree - -Created 6/2/1994 Heikki Tuuri -*******************************************************/ - -#include "mach0data.h" -#ifndef UNIV_HOTBACKUP -#include "mtr0mtr.h" -#include "mtr0log.h" -#include "page0zip.h" - -#define BTR_MAX_NODE_LEVEL 50 /*!< Maximum B-tree page level - (not really a hard limit). - Used in debug assertions - in btr_page_set_level and - btr_page_get_level_low */ - -/**************************************************************//** -Gets a buffer page and declares its latching order level. */ -UNIV_INLINE -buf_block_t* -btr_block_get_func( -/*===============*/ - ulint space, /*!< in: space id */ - ulint zip_size, /*!< in: compressed page size in bytes - or 0 for uncompressed pages */ - ulint page_no, /*!< in: page number */ - ulint mode, /*!< in: latch mode */ - const char* file, /*!< in: file name */ - ulint line, /*!< in: line where called */ - dict_index_t* index, /*!< in: index tree, may be NULL - if it is not an insert buffer tree */ - mtr_t* mtr) /*!< in/out: mtr */ -{ - buf_block_t* block; - dberr_t err; - - block = buf_page_get_gen(space, zip_size, page_no, mode, - NULL, BUF_GET, file, line, mtr, &err); - - if (err == DB_DECRYPTION_FAILED) { - if (index && index->table) { - index->table->file_unreadable = true; - } - } - - if (block) { - if (mode != RW_NO_LATCH) { - - buf_block_dbg_add_level( - block, index != NULL && dict_index_is_ibuf(index) - ? SYNC_IBUF_TREE_NODE : SYNC_TREE_NODE); - } - } - - return(block); -} - -/**************************************************************//** -Sets the index id field of a page. */ -UNIV_INLINE -void -btr_page_set_index_id( -/*==================*/ - page_t* page, /*!< in: page to be created */ - page_zip_des_t* page_zip,/*!< in: compressed page whose uncompressed - part will be updated, or NULL */ - index_id_t id, /*!< in: index id */ - mtr_t* mtr) /*!< in: mtr */ -{ - if (page_zip) { - mach_write_to_8(page + (PAGE_HEADER + PAGE_INDEX_ID), id); - page_zip_write_header(page_zip, - page + (PAGE_HEADER + PAGE_INDEX_ID), - 8, mtr); - } else { - mlog_write_ull(page + (PAGE_HEADER + PAGE_INDEX_ID), id, mtr); - } -} - -/** Gets a buffer page and declares its latching order level. -@param space tablespace identifier -@param zip_size compressed page size in bytes or 0 for uncompressed pages -@param page_no page number -@param mode latch mode -@param idx index tree, may be NULL if not the insert buffer tree -@param mtr mini-transaction handle -@return the uncompressed page frame */ -UNIV_INLINE -page_t* -btr_page_get( -/*=========*/ - ulint space, - ulint zip_size, - ulint root_page_no, - ulint mode, - dict_index_t* index, - mtr_t* mtr) -{ - buf_block_t* block=NULL; - buf_frame_t* frame=NULL; - - block = btr_block_get(space, zip_size, root_page_no, mode, index, mtr); - - if (block) { - frame = buf_block_get_frame(block); - } - - return ((page_t*)frame); -} - -#endif /* !UNIV_HOTBACKUP */ - -/**************************************************************//** -Gets the index id field of a page. -@return index id */ -UNIV_INLINE -index_id_t -btr_page_get_index_id( -/*==================*/ - const page_t* page) /*!< in: index page */ -{ - return(mach_read_from_8(page + PAGE_HEADER + PAGE_INDEX_ID)); -} - -#ifndef UNIV_HOTBACKUP -/********************************************************//** -Gets the node level field in an index page. -@return level, leaf level == 0 */ -UNIV_INLINE -ulint -btr_page_get_level_low( -/*===================*/ - const page_t* page) /*!< in: index page */ -{ - ulint level; - - ut_ad(page); - - level = mach_read_from_2(page + PAGE_HEADER + PAGE_LEVEL); - - ut_ad(level <= BTR_MAX_NODE_LEVEL); - - return(level); -} - -/********************************************************//** -Sets the node level field in an index page. */ -UNIV_INLINE -void -btr_page_set_level( -/*===============*/ - page_t* page, /*!< in: index page */ - page_zip_des_t* page_zip,/*!< in: compressed page whose uncompressed - part will be updated, or NULL */ - ulint level, /*!< in: level, leaf level == 0 */ - mtr_t* mtr) /*!< in: mini-transaction handle */ -{ - ut_ad(page && mtr); - ut_ad(level <= BTR_MAX_NODE_LEVEL); - - if (page_zip) { - mach_write_to_2(page + (PAGE_HEADER + PAGE_LEVEL), level); - page_zip_write_header(page_zip, - page + (PAGE_HEADER + PAGE_LEVEL), - 2, mtr); - } else { - mlog_write_ulint(page + (PAGE_HEADER + PAGE_LEVEL), level, - MLOG_2BYTES, mtr); - } -} - -/********************************************************//** -Gets the next index page number. -@return next page number */ -UNIV_INLINE -ulint -btr_page_get_next( -/*==============*/ - const page_t* page, /*!< in: index page */ - mtr_t* mtr MY_ATTRIBUTE((unused))) - /*!< in: mini-transaction handle */ -{ - ut_ad(page != NULL); - ut_ad(mtr != NULL); -#ifndef UNIV_INNOCHECKSUM - ut_ad(mtr_memo_contains_page(mtr, page, MTR_MEMO_PAGE_X_FIX) - || mtr_memo_contains_page(mtr, page, MTR_MEMO_PAGE_S_FIX)); -#endif /* UNIV_INNOCHECKSUM */ - return(mach_read_from_4(page + FIL_PAGE_NEXT)); -} - -/********************************************************//** -Sets the next index page field. */ -UNIV_INLINE -void -btr_page_set_next( -/*==============*/ - page_t* page, /*!< in: index page */ - page_zip_des_t* page_zip,/*!< in: compressed page whose uncompressed - part will be updated, or NULL */ - ulint next, /*!< in: next page number */ - mtr_t* mtr) /*!< in: mini-transaction handle */ -{ - ut_ad(page != NULL); - ut_ad(mtr != NULL); - - if (page_zip) { - mach_write_to_4(page + FIL_PAGE_NEXT, next); - page_zip_write_header(page_zip, page + FIL_PAGE_NEXT, 4, mtr); - } else { - mlog_write_ulint(page + FIL_PAGE_NEXT, next, MLOG_4BYTES, mtr); - } -} - -/********************************************************//** -Gets the previous index page number. -@return prev page number */ -UNIV_INLINE -ulint -btr_page_get_prev( -/*==============*/ - const page_t* page, /*!< in: index page */ - mtr_t* mtr MY_ATTRIBUTE((unused))) /*!< in: mini-transaction handle */ -{ - ut_ad(page != NULL); - ut_ad(mtr != NULL); - - return(mach_read_from_4(page + FIL_PAGE_PREV)); -} - -/********************************************************//** -Sets the previous index page field. */ -UNIV_INLINE -void -btr_page_set_prev( -/*==============*/ - page_t* page, /*!< in: index page */ - page_zip_des_t* page_zip,/*!< in: compressed page whose uncompressed - part will be updated, or NULL */ - ulint prev, /*!< in: previous page number */ - mtr_t* mtr) /*!< in: mini-transaction handle */ -{ - ut_ad(page != NULL); - ut_ad(mtr != NULL); - - if (page_zip) { - mach_write_to_4(page + FIL_PAGE_PREV, prev); - page_zip_write_header(page_zip, page + FIL_PAGE_PREV, 4, mtr); - } else { - mlog_write_ulint(page + FIL_PAGE_PREV, prev, MLOG_4BYTES, mtr); - } -} - -/**************************************************************//** -Gets the child node file address in a node pointer. -NOTE: the offsets array must contain all offsets for the record since -we read the last field according to offsets and assume that it contains -the child page number. In other words offsets must have been retrieved -with rec_get_offsets(n_fields=ULINT_UNDEFINED). -@return child node address */ -UNIV_INLINE -ulint -btr_node_ptr_get_child_page_no( -/*===========================*/ - const rec_t* rec, /*!< in: node pointer record */ - const ulint* offsets)/*!< in: array returned by rec_get_offsets() */ -{ - const byte* field; - ulint len; - ulint page_no; - - ut_ad(!rec_offs_comp(offsets) || rec_get_node_ptr_flag(rec)); - - /* The child address is in the last field */ - field = rec_get_nth_field(rec, offsets, - rec_offs_n_fields(offsets) - 1, &len); - - ut_ad(len == 4); - - page_no = mach_read_from_4(field); - - if (page_no == 0) { - fprintf(stderr, - "InnoDB: a nonsensical page number 0" - " in a node ptr record at offset %lu\n", - (ulong) page_offset(rec)); - buf_page_print(page_align(rec), 0, 0); - ut_ad(0); - } - - return(page_no); -} - -/**************************************************************//** -Releases the latches on a leaf page and bufferunfixes it. */ -UNIV_INLINE -void -btr_leaf_page_release( -/*==================*/ - buf_block_t* block, /*!< in: buffer block */ - ulint latch_mode, /*!< in: BTR_SEARCH_LEAF or - BTR_MODIFY_LEAF */ - mtr_t* mtr) /*!< in: mtr */ -{ - ut_ad(latch_mode == BTR_SEARCH_LEAF || latch_mode == BTR_MODIFY_LEAF); - ut_ad(!mtr_memo_contains(mtr, block, MTR_MEMO_MODIFY)); - - mtr_memo_release(mtr, block, - latch_mode == BTR_SEARCH_LEAF - ? MTR_MEMO_PAGE_S_FIX - : MTR_MEMO_PAGE_X_FIX); -} -#endif /* !UNIV_HOTBACKUP */ |