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authorGuilhem Bichot <guilhem@mysql.com>2009-08-04 13:25:19 +0200
committerGuilhem Bichot <guilhem@mysql.com>2009-08-04 13:25:19 +0200
commitb57e4dbd88671df86e2cf39aff5178976d710b64 (patch)
tree32be2bfec3ca062c65566c60ecf59b673d1f97e9 /storage/innobase/include/btr0cur.ic
parent1a0c2153a036296785dcdfa7b5f4974515616e11 (diff)
parent94efc1c6b084ed531b513e70fb66e7b7a1186b56 (diff)
downloadmariadb-git-b57e4dbd88671df86e2cf39aff5178976d710b64.tar.gz
Creation of mysql-trunk = {summit + "Innodb plugin replacing the builtin"}:
bzr branch mysql-5.1-performance-version mysql-trunk # Summit cd mysql-trunk bzr merge mysql-5.1-innodb_plugin # which is 5.1 + Innodb plugin bzr rm innobase # remove the builtin Next step: build, test fixes.
Diffstat (limited to 'storage/innobase/include/btr0cur.ic')
-rw-r--r--storage/innobase/include/btr0cur.ic154
1 files changed, 0 insertions, 154 deletions
diff --git a/storage/innobase/include/btr0cur.ic b/storage/innobase/include/btr0cur.ic
deleted file mode 100644
index bd2c46eb734..00000000000
--- a/storage/innobase/include/btr0cur.ic
+++ /dev/null
@@ -1,154 +0,0 @@
-/******************************************************
-The index tree cursor
-
-(c) 1994-1996 Innobase Oy
-
-Created 10/16/1994 Heikki Tuuri
-*******************************************************/
-
-#include "btr0btr.h"
-
-/*************************************************************
-Returns the page cursor component of a tree cursor. */
-UNIV_INLINE
-page_cur_t*
-btr_cur_get_page_cur(
-/*=================*/
- /* out: pointer to page cursor component */
- btr_cur_t* cursor) /* in: tree cursor */
-{
- return(&(cursor->page_cur));
-}
-
-/*************************************************************
-Returns the record pointer of a tree cursor. */
-UNIV_INLINE
-rec_t*
-btr_cur_get_rec(
-/*============*/
- /* out: pointer to record */
- btr_cur_t* cursor) /* in: tree cursor */
-{
- return(page_cur_get_rec(&(cursor->page_cur)));
-}
-
-/*************************************************************
-Invalidates a tree cursor by setting record pointer to NULL. */
-UNIV_INLINE
-void
-btr_cur_invalidate(
-/*===============*/
- btr_cur_t* cursor) /* in: tree cursor */
-{
- page_cur_invalidate(&(cursor->page_cur));
-}
-
-/*************************************************************
-Returns the page of a tree cursor. */
-UNIV_INLINE
-page_t*
-btr_cur_get_page(
-/*=============*/
- /* out: pointer to page */
- btr_cur_t* cursor) /* in: tree cursor */
-{
- return(buf_frame_align(page_cur_get_rec(&(cursor->page_cur))));
-}
-
-/*************************************************************
-Returns the index of a cursor. */
-UNIV_INLINE
-dict_index_t*
-btr_cur_get_index(
-/*==============*/
- /* out: index */
- btr_cur_t* cursor) /* in: B-tree cursor */
-{
- return(cursor->index);
-}
-
-/*************************************************************
-Positions a tree cursor at a given record. */
-UNIV_INLINE
-void
-btr_cur_position(
-/*=============*/
- dict_index_t* index, /* in: index */
- rec_t* rec, /* in: record in tree */
- btr_cur_t* cursor) /* in: cursor */
-{
- page_cur_position(rec, btr_cur_get_page_cur(cursor));
-
- cursor->index = index;
-}
-
-/*************************************************************************
-Checks if compressing an index page where a btr cursor is placed makes
-sense. */
-UNIV_INLINE
-ibool
-btr_cur_compress_recommendation(
-/*============================*/
- /* out: TRUE if compression is recommended */
- btr_cur_t* cursor, /* in: btr cursor */
- mtr_t* mtr) /* in: mtr */
-{
- page_t* page;
-
- ut_ad(mtr_memo_contains(mtr, buf_block_align(btr_cur_get_rec(cursor)),
- MTR_MEMO_PAGE_X_FIX));
-
- page = btr_cur_get_page(cursor);
-
- if ((page_get_data_size(page) < BTR_CUR_PAGE_COMPRESS_LIMIT)
- || ((btr_page_get_next(page, mtr) == FIL_NULL)
- && (btr_page_get_prev(page, mtr) == FIL_NULL))) {
-
- /* The page fillfactor has dropped below a predefined
- minimum value OR the level in the B-tree contains just
- one page: we recommend compression if this is not the
- root page. */
-
- return(dict_index_get_page(cursor->index)
- != buf_frame_get_page_no(page));
- }
-
- return(FALSE);
-}
-
-/*************************************************************************
-Checks if the record on which the cursor is placed can be deleted without
-making tree compression necessary (or, recommended). */
-UNIV_INLINE
-ibool
-btr_cur_can_delete_without_compress(
-/*================================*/
- /* out: TRUE if can be deleted without
- recommended compression */
- btr_cur_t* cursor, /* in: btr cursor */
- ulint rec_size,/* in: rec_get_size(btr_cur_get_rec(cursor))*/
- mtr_t* mtr) /* in: mtr */
-{
- page_t* page;
-
- ut_ad(mtr_memo_contains(mtr, buf_block_align(btr_cur_get_rec(cursor)),
- MTR_MEMO_PAGE_X_FIX));
-
- page = btr_cur_get_page(cursor);
-
- if ((page_get_data_size(page) - rec_size < BTR_CUR_PAGE_COMPRESS_LIMIT)
- || ((btr_page_get_next(page, mtr) == FIL_NULL)
- && (btr_page_get_prev(page, mtr) == FIL_NULL))
- || (page_get_n_recs(page) < 2)) {
-
- /* The page fillfactor will drop below a predefined
- minimum value, OR the level in the B-tree contains just
- one page, OR the page will become empty: we recommend
- compression if this is not the root page. */
-
- return(dict_index_get_page(cursor->index)
- == buf_frame_get_page_no(page));
- }
-
- return(TRUE);
-}