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Diffstat (limited to 'storage/xtradb/include/buf0buddy.ic')
| -rw-r--r-- | storage/xtradb/include/buf0buddy.ic | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/storage/xtradb/include/buf0buddy.ic b/storage/xtradb/include/buf0buddy.ic deleted file mode 100644 index a5fb510dd19..00000000000 --- a/storage/xtradb/include/buf0buddy.ic +++ /dev/null @@ -1,142 +0,0 @@ -/***************************************************************************** - -Copyright (c) 2006, 2016, Oracle and/or its affiliates. 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., -51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA - -*****************************************************************************/ - -/**************************************************//** -@file include/buf0buddy.ic -Binary buddy allocator for compressed pages - -Created December 2006 by Marko Makela -*******************************************************/ - -#ifdef UNIV_MATERIALIZE -# undef UNIV_INLINE -# define UNIV_INLINE -#endif - -#include "buf0buf.h" -#include "buf0buddy.h" -#include "ut0ut.h" -#include "sync0sync.h" - -/**********************************************************************//** -Allocate a block. The thread calling this function must hold -buf_pool->LRU_list_mutex and must not hold buf_pool->zip_mutex or any -block->mutex. The buf_pool->LRU_list_mutex may be released and reacquired. -@return allocated block, never NULL */ -UNIV_INTERN -void* -buf_buddy_alloc_low( -/*================*/ - buf_pool_t* buf_pool, /*!< in/out: buffer pool instance */ - ulint i, /*!< in: index of buf_pool->zip_free[], - or BUF_BUDDY_SIZES */ - ibool* lru) /*!< in: pointer to a variable that - will be assigned TRUE if storage was - allocated from the LRU list and - buf_pool->LRU_list_mutex was - temporarily released */ - MY_ATTRIBUTE((malloc)); - -/**********************************************************************//** -Deallocate a block. */ -UNIV_INTERN -void -buf_buddy_free_low( -/*===============*/ - buf_pool_t* buf_pool, /*!< in: buffer pool instance */ - void* buf, /*!< in: block to be freed, must not be - pointed to by the buffer pool */ - ulint i) /*!< in: index of buf_pool->zip_free[], - or BUF_BUDDY_SIZES */ - MY_ATTRIBUTE((nonnull)); - -/**********************************************************************//** -Get the index of buf_pool->zip_free[] for a given block size. -@return index of buf_pool->zip_free[], or BUF_BUDDY_SIZES */ -UNIV_INLINE -ulint -buf_buddy_get_slot( -/*===============*/ - ulint size) /*!< in: block size */ -{ - ulint i; - ulint s; - - ut_ad(size >= UNIV_ZIP_SIZE_MIN); - - for (i = 0, s = BUF_BUDDY_LOW; s < size; i++, s <<= 1) { - } - - ut_ad(i <= BUF_BUDDY_SIZES); - return(i); -} - -/**********************************************************************//** -Allocate a block. The thread calling this function must hold -buf_pool->LRU_list_mutex and must not hold buf_pool->zip_mutex or any -block->mutex. The buf_pool->LRU_list_mutex may be released and reacquired. -This function should only be used for allocating compressed page frames. -@return allocated block, never NULL */ -UNIV_INLINE -byte* -buf_buddy_alloc( -/*============*/ - buf_pool_t* buf_pool, /*!< in/out: buffer pool in which - the page resides */ - ulint size, /*!< in: compressed page size - (between UNIV_ZIP_SIZE_MIN and - UNIV_PAGE_SIZE) */ - ibool* lru) /*!< in: pointer to a variable - that will be assigned TRUE if - storage was allocated from the - LRU list and buf_pool->LRU_list_mutex - was temporarily released */ -{ - ut_ad(mutex_own(&buf_pool->LRU_list_mutex)); - ut_ad(ut_is_2pow(size)); - ut_ad(size >= UNIV_ZIP_SIZE_MIN); - ut_ad(size <= UNIV_PAGE_SIZE); - - return((byte*) buf_buddy_alloc_low(buf_pool, buf_buddy_get_slot(size), - lru)); -} - -/**********************************************************************//** -Deallocate a block. */ -UNIV_INLINE -void -buf_buddy_free( -/*===========*/ - buf_pool_t* buf_pool, /*!< in/out: buffer pool in which - the block resides */ - void* buf, /*!< in: block to be freed, must not - be pointed to by the buffer pool */ - ulint size) /*!< in: block size, - up to UNIV_PAGE_SIZE */ -{ - ut_ad(ut_is_2pow(size)); - ut_ad(size >= UNIV_ZIP_SIZE_MIN); - ut_ad(size <= UNIV_PAGE_SIZE); - - buf_buddy_free_low(buf_pool, buf, buf_buddy_get_slot(size)); -} - -#ifdef UNIV_MATERIALIZE -# undef UNIV_INLINE -# define UNIV_INLINE UNIV_INLINE_ORIGINAL -#endif |