summaryrefslogtreecommitdiff
path: root/storage/xtradb/mem
diff options
context:
space:
mode:
authorMarko Mäkelä <marko.makela@mariadb.com>2017-06-21 13:44:16 +0300
committerMarko Mäkelä <marko.makela@mariadb.com>2017-06-21 13:44:16 +0300
commit2a3fe45dd2df047cc0d66e2bcdbadd5005c85a1a (patch)
tree0d00d4685c60baa325d12d5103fbf72253682bbc /storage/xtradb/mem
parent99e017d09945d04e8f43d3b74ecc556e809613a2 (diff)
downloadmariadb-git-2a3fe45dd2df047cc0d66e2bcdbadd5005c85a1a.tar.gz
Remove XtraDB
The XtraDB storage engine was already replaced by InnoDB and disabled in MariaDB Server 10.2. Let us remove it altogether to avoid dragging dead code around. Replace some references to XtraDB with references to InnoDB. rpl_get_position_info(): Remove. Remove the mysql-test-run --suite=percona, because it only contains tests specific to XtraDB, many of which were disabled already in earlier MariaDB versions.
Diffstat (limited to 'storage/xtradb/mem')
-rw-r--r--storage/xtradb/mem/mem0dbg.cc1050
-rw-r--r--storage/xtradb/mem/mem0mem.cc583
-rw-r--r--storage/xtradb/mem/mem0pool.cc728
3 files changed, 0 insertions, 2361 deletions
diff --git a/storage/xtradb/mem/mem0dbg.cc b/storage/xtradb/mem/mem0dbg.cc
deleted file mode 100644
index a77785a369a..00000000000
--- a/storage/xtradb/mem/mem0dbg.cc
+++ /dev/null
@@ -1,1050 +0,0 @@
-/*****************************************************************************
-
-Copyright (c) 1994, 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 mem/mem0dbg.cc
-The memory management: the debug code. This is not a compilation module,
-but is included in mem0mem.* !
-
-Created 6/9/1994 Heikki Tuuri
-*************************************************************************/
-
-#ifdef UNIV_MEM_DEBUG
-# ifndef UNIV_HOTBACKUP
-# include "ha_prototypes.h"
-/* The mutex which protects in the debug version the hash table
-containing the list of live memory heaps, and also the global
-variables below. */
-UNIV_INTERN ib_mutex_t mem_hash_mutex;
-
-#ifdef UNIV_PFS_MUTEX
-/* Key to register mem_hash_mutex with performance schema */
-UNIV_INTERN mysql_pfs_key_t mem_hash_mutex_key;
-#endif /* UNIV_PFS_MUTEX */
-
-# endif /* !UNIV_HOTBACKUP */
-
-/* The following variables contain information about the
-extent of memory allocations. Only used in the debug version.
-Protected by mem_hash_mutex above. */
-
-static ulint mem_n_created_heaps = 0;
-static ulint mem_n_allocations = 0;
-static ulint mem_total_allocated_memory = 0;
-UNIV_INTERN ulint mem_current_allocated_memory = 0;
-static ulint mem_max_allocated_memory = 0;
-# ifndef UNIV_HOTBACKUP
-static ulint mem_last_print_info = 0;
-static ibool mem_hash_initialized = FALSE;
-# endif /* !UNIV_HOTBACKUP */
-
-/* Size of the hash table for memory management tracking */
-#define MEM_HASH_SIZE 997
-
-/* The node of the list containing currently allocated memory heaps */
-
-struct mem_hash_node_t {
- UT_LIST_NODE_T(mem_hash_node_t)
- list; /*!< hash list node */
- mem_heap_t* heap; /*!< memory heap */
- const char* file_name;/* file where heap was created*/
- ulint line; /*!< file line of creation */
- ulint nth_heap;/* this is the nth heap created */
- UT_LIST_NODE_T(mem_hash_node_t)
- all_list;/* list of all created heaps */
-};
-
-typedef UT_LIST_BASE_NODE_T(mem_hash_node_t) mem_hash_cell_t;
-
-/* The hash table of allocated heaps */
-static mem_hash_cell_t mem_hash_table[MEM_HASH_SIZE];
-
-/* The base node of the list of all allocated heaps */
-static mem_hash_cell_t mem_all_list_base;
-
-
-
-UNIV_INLINE
-mem_hash_cell_t*
-mem_hash_get_nth_cell(ulint i);
-
-/* Accessor function for the hash table. Returns a pointer to the
-table cell. */
-UNIV_INLINE
-mem_hash_cell_t*
-mem_hash_get_nth_cell(ulint i)
-{
- ut_a(i < MEM_HASH_SIZE);
-
- return(&(mem_hash_table[i]));
-}
-
-/* Accessor functions for a memory field in the debug version */
-UNIV_INTERN
-void
-mem_field_header_set_len(byte* field, ulint len)
-{
- mach_write_to_4(field - 2 * sizeof(ulint), len);
-}
-
-UNIV_INTERN
-ulint
-mem_field_header_get_len(byte* field)
-{
- return(mach_read_from_4(field - 2 * sizeof(ulint)));
-}
-
-UNIV_INTERN
-void
-mem_field_header_set_check(byte* field, ulint check)
-{
- mach_write_to_4(field - sizeof(ulint), check);
-}
-
-UNIV_INTERN
-ulint
-mem_field_header_get_check(byte* field)
-{
- return(mach_read_from_4(field - sizeof(ulint)));
-}
-
-UNIV_INTERN
-void
-mem_field_trailer_set_check(byte* field, ulint check)
-{
- mach_write_to_4(field + mem_field_header_get_len(field), check);
-}
-
-UNIV_INTERN
-ulint
-mem_field_trailer_get_check(byte* field)
-{
- return(mach_read_from_4(field
- + mem_field_header_get_len(field)));
-}
-#endif /* UNIV_MEM_DEBUG */
-
-#ifndef UNIV_HOTBACKUP
-/******************************************************************//**
-Initializes the memory system. */
-UNIV_INTERN
-void
-mem_init(
-/*=====*/
- ulint size) /*!< in: common pool size in bytes */
-{
-#ifdef UNIV_MEM_DEBUG
-
- ulint i;
-
- /* Initialize the hash table */
- ut_a(FALSE == mem_hash_initialized);
-
- mutex_create(mem_hash_mutex_key, &mem_hash_mutex, SYNC_MEM_HASH);
-
- for (i = 0; i < MEM_HASH_SIZE; i++) {
- UT_LIST_INIT(*mem_hash_get_nth_cell(i));
- }
-
- UT_LIST_INIT(mem_all_list_base);
-
- mem_hash_initialized = TRUE;
-#endif
-
- if (UNIV_LIKELY(srv_use_sys_malloc)) {
- /* When innodb_use_sys_malloc is set, the
- mem_comm_pool won't be used for any allocations. We
- create a dummy mem_comm_pool, because some statistics
- and debugging code relies on it being initialized. */
- size = 1;
- }
-
- mem_comm_pool = mem_pool_create(size);
-}
-
-/******************************************************************//**
-Closes the memory system. */
-UNIV_INTERN
-void
-mem_close(void)
-/*===========*/
-{
- mem_pool_free(mem_comm_pool);
- mem_comm_pool = NULL;
-#ifdef UNIV_MEM_DEBUG
- mutex_free(&mem_hash_mutex);
- mem_hash_initialized = FALSE;
-#endif /* UNIV_MEM_DEBUG */
-}
-#endif /* !UNIV_HOTBACKUP */
-
-#ifdef UNIV_MEM_DEBUG
-/******************************************************************//**
-Initializes an allocated memory field in the debug version. */
-UNIV_INTERN
-void
-mem_field_init(
-/*===========*/
- byte* buf, /*!< in: memory field */
- ulint n) /*!< in: how many bytes the user requested */
-{
- ulint rnd;
- byte* usr_buf;
-
- usr_buf = buf + MEM_FIELD_HEADER_SIZE;
-
- /* In the debug version write the length field and the
- check fields to the start and the end of the allocated storage.
- The field header consists of a length field and
- a random number field, in this order. The field trailer contains
- the same random number as a check field. */
-
- mem_field_header_set_len(usr_buf, n);
-
- rnd = ut_rnd_gen_ulint();
-
- mem_field_header_set_check(usr_buf, rnd);
- mem_field_trailer_set_check(usr_buf, rnd);
-
- /* Update the memory allocation information */
-
- mutex_enter(&mem_hash_mutex);
-
- mem_total_allocated_memory += n;
- mem_current_allocated_memory += n;
- mem_n_allocations++;
-
- if (mem_current_allocated_memory > mem_max_allocated_memory) {
- mem_max_allocated_memory = mem_current_allocated_memory;
- }
-
- mutex_exit(&mem_hash_mutex);
-
- /* In the debug version set the buffer to a random
- combination of 0xBA and 0xBE */
-
- mem_init_buf(usr_buf, n);
-}
-
-/******************************************************************//**
-Erases an allocated memory field in the debug version. */
-UNIV_INTERN
-void
-mem_field_erase(
-/*============*/
- byte* buf, /*!< in: memory field */
- ulint n MY_ATTRIBUTE((unused)))
- /*!< in: how many bytes the user requested */
-{
- byte* usr_buf;
-
- usr_buf = buf + MEM_FIELD_HEADER_SIZE;
-
- mutex_enter(&mem_hash_mutex);
- mem_current_allocated_memory -= n;
- mutex_exit(&mem_hash_mutex);
-
- /* Check that the field lengths agree */
- ut_ad(n == (ulint) mem_field_header_get_len(usr_buf));
-
- /* In the debug version, set the freed space to a random
- combination of 0xDE and 0xAD */
-
- mem_erase_buf(buf, MEM_SPACE_NEEDED(n));
-}
-
-/***************************************************************//**
-Initializes a buffer to a random combination of hex BA and BE.
-Used to initialize allocated memory. */
-UNIV_INTERN
-void
-mem_init_buf(
-/*=========*/
- byte* buf, /*!< in: pointer to buffer */
- ulint n) /*!< in: length of buffer */
-{
- byte* ptr;
-
- UNIV_MEM_ASSERT_W(buf, n);
-
- for (ptr = buf; ptr < buf + n; ptr++) {
-
- if (ut_rnd_gen_ibool()) {
- *ptr = 0xBA;
- } else {
- *ptr = 0xBE;
- }
- }
-
- UNIV_MEM_INVALID(buf, n);
-}
-
-/***************************************************************//**
-Initializes a buffer to a random combination of hex DE and AD.
-Used to erase freed memory. */
-UNIV_INTERN
-void
-mem_erase_buf(
-/*==========*/
- byte* buf, /*!< in: pointer to buffer */
- ulint n) /*!< in: length of buffer */
-{
- byte* ptr;
-
- UNIV_MEM_ASSERT_W(buf, n);
-
- for (ptr = buf; ptr < buf + n; ptr++) {
- if (ut_rnd_gen_ibool()) {
- *ptr = 0xDE;
- } else {
- *ptr = 0xAD;
- }
- }
-
- UNIV_MEM_FREE(buf, n);
-}
-
-/***************************************************************//**
-Inserts a created memory heap to the hash table of current allocated
-memory heaps. */
-UNIV_INTERN
-void
-mem_hash_insert(
-/*============*/
- mem_heap_t* heap, /*!< in: the created heap */
- const char* file_name, /*!< in: file name of creation */
- ulint line) /*!< in: line where created */
-{
- mem_hash_node_t* new_node;
- ulint cell_no ;
-
- ut_ad(mem_heap_check(heap));
-
- mutex_enter(&mem_hash_mutex);
-
- cell_no = ut_hash_ulint((ulint) heap, MEM_HASH_SIZE);
-
- /* Allocate a new node to the list */
- new_node = static_cast<mem_hash_node_t*>(ut_malloc(sizeof(*new_node)));
-
- new_node->heap = heap;
- new_node->file_name = file_name;
- new_node->line = line;
- new_node->nth_heap = mem_n_created_heaps;
-
- /* Insert into lists */
- UT_LIST_ADD_FIRST(list, *mem_hash_get_nth_cell(cell_no), new_node);
-
- UT_LIST_ADD_LAST(all_list, mem_all_list_base, new_node);
-
- mem_n_created_heaps++;
-
- mutex_exit(&mem_hash_mutex);
-}
-
-/***************************************************************//**
-Removes a memory heap (which is going to be freed by the caller)
-from the list of live memory heaps. Returns the size of the heap
-in terms of how much memory in bytes was allocated for the user of
-the heap (not the total space occupied by the heap).
-Also validates the heap.
-NOTE: This function does not free the storage occupied by the
-heap itself, only the node in the list of heaps. */
-UNIV_INTERN
-void
-mem_hash_remove(
-/*============*/
- mem_heap_t* heap, /*!< in: the heap to be freed */
- const char* file_name, /*!< in: file name of freeing */
- ulint line) /*!< in: line where freed */
-{
- mem_hash_node_t* node;
- ulint cell_no;
- ibool error;
- ulint size;
-
- ut_ad(mem_heap_check(heap));
-
- mutex_enter(&mem_hash_mutex);
-
- cell_no = ut_hash_ulint((ulint) heap, MEM_HASH_SIZE);
-
- /* Look for the heap in the hash table list */
- node = UT_LIST_GET_FIRST(*mem_hash_get_nth_cell(cell_no));
-
- while (node != NULL) {
- if (node->heap == heap) {
-
- break;
- }
-
- node = UT_LIST_GET_NEXT(list, node);
- }
-
- if (node == NULL) {
- fprintf(stderr,
- "Memory heap or buffer freed in %s line %lu"
- " did not exist.\n",
- innobase_basename(file_name), (ulong) line);
- ut_error;
- }
-
- /* Remove from lists */
- UT_LIST_REMOVE(list, *mem_hash_get_nth_cell(cell_no), node);
-
- UT_LIST_REMOVE(all_list, mem_all_list_base, node);
-
- /* Validate the heap which will be freed */
- mem_heap_validate_or_print(node->heap, NULL, FALSE, &error, &size,
- NULL, NULL);
- if (error) {
- fprintf(stderr,
- "Inconsistency in memory heap or"
- " buffer n:o %lu created\n"
- "in %s line %lu and tried to free in %s line %lu.\n"
- "Hex dump of 400 bytes around memory heap"
- " first block start:\n",
- node->nth_heap,
- innobase_basename(node->file_name), (ulong) node->line,
- innobase_basename(file_name), (ulong) line);
- ut_print_buf(stderr, (byte*) node->heap - 200, 400);
- fputs("\nDump of the mem heap:\n", stderr);
- mem_heap_validate_or_print(node->heap, NULL, TRUE, &error,
- &size, NULL, NULL);
- ut_error;
- }
-
- /* Free the memory occupied by the node struct */
- ut_free(node);
-
- mem_current_allocated_memory -= size;
-
- mutex_exit(&mem_hash_mutex);
-}
-#endif /* UNIV_MEM_DEBUG */
-
-#if defined UNIV_MEM_DEBUG || defined UNIV_DEBUG
-/***************************************************************//**
-Checks a memory heap for consistency and prints the contents if requested.
-Outputs the sum of sizes of buffers given to the user (only in
-the debug version), the physical size of the heap and the number of
-blocks in the heap. In case of error returns 0 as sizes and number
-of blocks. */
-UNIV_INTERN
-void
-mem_heap_validate_or_print(
-/*=======================*/
- mem_heap_t* heap, /*!< in: memory heap */
- byte* top MY_ATTRIBUTE((unused)),
- /*!< in: calculate and validate only until
- this top pointer in the heap is reached,
- if this pointer is NULL, ignored */
- ibool print, /*!< in: if TRUE, prints the contents
- of the heap; works only in
- the debug version */
- ibool* error, /*!< out: TRUE if error */
- ulint* us_size,/*!< out: allocated memory
- (for the user) in the heap,
- if a NULL pointer is passed as this
- argument, it is ignored; in the
- non-debug version this is always -1 */
- ulint* ph_size,/*!< out: physical size of the heap,
- if a NULL pointer is passed as this
- argument, it is ignored */
- ulint* n_blocks) /*!< out: number of blocks in the heap,
- if a NULL pointer is passed as this
- argument, it is ignored */
-{
- mem_block_t* block;
- ulint total_len = 0;
- ulint block_count = 0;
- ulint phys_len = 0;
-#ifdef UNIV_MEM_DEBUG
- ulint len;
- byte* field;
- byte* user_field;
- ulint check_field;
-#endif
-
- /* Pessimistically, we set the parameters to error values */
- if (us_size != NULL) {
- *us_size = 0;
- }
- if (ph_size != NULL) {
- *ph_size = 0;
- }
- if (n_blocks != NULL) {
- *n_blocks = 0;
- }
- *error = TRUE;
-
- block = heap;
-
- if (block->magic_n != MEM_BLOCK_MAGIC_N) {
- return;
- }
-
- if (print) {
- fputs("Memory heap:", stderr);
- }
-
- while (block != NULL) {
- phys_len += mem_block_get_len(block);
-
- if ((block->type == MEM_HEAP_BUFFER)
- && (mem_block_get_len(block) > UNIV_PAGE_SIZE)) {
-
- fprintf(stderr,
- "InnoDB: Error: mem block %p"
- " length %lu > UNIV_PAGE_SIZE\n",
- (void*) block,
- (ulong) mem_block_get_len(block));
- /* error */
-
- return;
- }
-
-#ifdef UNIV_MEM_DEBUG
- /* We can trace the fields of the block only in the debug
- version */
- if (print) {
- fprintf(stderr, " Block %ld:", block_count);
- }
-
- field = (byte*) block + mem_block_get_start(block);
-
- if (top && (field == top)) {
-
- goto completed;
- }
-
- while (field < (byte*) block + mem_block_get_free(block)) {
-
- /* Calculate the pointer to the storage
- which was given to the user */
-
- user_field = field + MEM_FIELD_HEADER_SIZE;
-
- len = mem_field_header_get_len(user_field);
-
- if (print) {
- ut_print_buf(stderr, user_field, len);
- putc('\n', stderr);
- }
-
- total_len += len;
- check_field = mem_field_header_get_check(user_field);
-
- if (check_field
- != mem_field_trailer_get_check(user_field)) {
- /* error */
-
- fprintf(stderr,
- "InnoDB: Error: block %lx mem"
- " field %lx len %lu\n"
- "InnoDB: header check field is"
- " %lx but trailer %lx\n",
- (ulint) block,
- (ulint) field, len, check_field,
- mem_field_trailer_get_check(
- user_field));
-
- return;
- }
-
- /* Move to next field */
- field = field + MEM_SPACE_NEEDED(len);
-
- if (top && (field == top)) {
-
- goto completed;
- }
-
- }
-
- /* At the end check that we have arrived to the first free
- position */
-
- if (field != (byte*) block + mem_block_get_free(block)) {
- /* error */
-
- fprintf(stderr,
- "InnoDB: Error: block %lx end of"
- " mem fields %lx\n"
- "InnoDB: but block free at %lx\n",
- (ulint) block, (ulint) field,
- (ulint)((byte*) block
- + mem_block_get_free(block)));
-
- return;
- }
-
-#endif
-
- block = UT_LIST_GET_NEXT(list, block);
- block_count++;
- }
-#ifdef UNIV_MEM_DEBUG
-completed:
-#endif
- if (us_size != NULL) {
- *us_size = total_len;
- }
- if (ph_size != NULL) {
- *ph_size = phys_len;
- }
- if (n_blocks != NULL) {
- *n_blocks = block_count;
- }
- *error = FALSE;
-}
-
-/**************************************************************//**
-Prints the contents of a memory heap. */
-static
-void
-mem_heap_print(
-/*===========*/
- mem_heap_t* heap) /*!< in: memory heap */
-{
- ibool error;
- ulint us_size;
- ulint phys_size;
- ulint n_blocks;
-
- ut_ad(mem_heap_check(heap));
-
- mem_heap_validate_or_print(heap, NULL, TRUE, &error,
- &us_size, &phys_size, &n_blocks);
- fprintf(stderr,
- "\nheap type: %lu; size: user size %lu;"
- " physical size %lu; blocks %lu.\n",
- (ulong) heap->type, (ulong) us_size,
- (ulong) phys_size, (ulong) n_blocks);
- ut_a(!error);
-}
-
-/**************************************************************//**
-Validates the contents of a memory heap.
-@return TRUE if ok */
-UNIV_INTERN
-ibool
-mem_heap_validate(
-/*==============*/
- mem_heap_t* heap) /*!< in: memory heap */
-{
- ibool error;
- ulint us_size;
- ulint phys_size;
- ulint n_blocks;
-
- ut_ad(mem_heap_check(heap));
-
- mem_heap_validate_or_print(heap, NULL, FALSE, &error, &us_size,
- &phys_size, &n_blocks);
- if (error) {
- mem_heap_print(heap);
- }
-
- ut_a(!error);
-
- return(TRUE);
-}
-#endif /* UNIV_MEM_DEBUG || UNIV_DEBUG */
-
-#ifdef UNIV_DEBUG
-/**************************************************************//**
-Checks that an object is a memory heap (or a block of it).
-@return TRUE if ok */
-UNIV_INTERN
-ibool
-mem_heap_check(
-/*===========*/
- mem_heap_t* heap) /*!< in: memory heap */
-{
- ut_a(heap->magic_n == MEM_BLOCK_MAGIC_N);
-
- return(TRUE);
-}
-#endif /* UNIV_DEBUG */
-
-#ifdef UNIV_MEM_DEBUG
-/*****************************************************************//**
-TRUE if no memory is currently allocated.
-@return TRUE if no heaps exist */
-UNIV_INTERN
-ibool
-mem_all_freed(void)
-/*===============*/
-{
- mem_hash_node_t* node;
- ulint heap_count = 0;
- ulint i;
-
- mem_validate();
-
- mutex_enter(&mem_hash_mutex);
-
- for (i = 0; i < MEM_HASH_SIZE; i++) {
-
- node = UT_LIST_GET_FIRST(*mem_hash_get_nth_cell(i));
- while (node != NULL) {
- heap_count++;
- node = UT_LIST_GET_NEXT(list, node);
- }
- }
-
- mutex_exit(&mem_hash_mutex);
-
- if (heap_count == 0) {
-# ifndef UNIV_HOTBACKUP
- ut_a(mem_pool_get_reserved(mem_comm_pool) == 0);
-# endif /* !UNIV_HOTBACKUP */
-
- return(TRUE);
- } else {
- return(FALSE);
- }
-}
-
-/*****************************************************************//**
-Validates the dynamic memory allocation system.
-@return TRUE if error */
-UNIV_INTERN
-ibool
-mem_validate_no_assert(void)
-/*========================*/
-{
- mem_hash_node_t* node;
- ulint n_heaps = 0;
- ulint allocated_mem;
- ulint ph_size;
- ulint total_allocated_mem = 0;
- ibool error = FALSE;
- ulint n_blocks;
- ulint i;
-
-# ifndef UNIV_HOTBACKUP
- mem_pool_validate(mem_comm_pool);
-# endif /* !UNIV_HOTBACKUP */
-
- mutex_enter(&mem_hash_mutex);
-
- for (i = 0; i < MEM_HASH_SIZE; i++) {
-
- node = UT_LIST_GET_FIRST(*mem_hash_get_nth_cell(i));
-
- while (node != NULL) {
- n_heaps++;
-
- mem_heap_validate_or_print(node->heap, NULL,
- FALSE, &error,
- &allocated_mem,
- &ph_size, &n_blocks);
-
- if (error) {
- fprintf(stderr,
- "\nERROR!!!!!!!!!!!!!!!!!!!"
- "!!!!!!!!!!!!!!!!!!!!!!!\n\n"
- "Inconsistency in memory heap"
- " or buffer created\n"
- "in %s line %lu.\n",
- innobase_basename(node->file_name),
- node->line);
-
- mutex_exit(&mem_hash_mutex);
-
- return(TRUE);
- }
-
- total_allocated_mem += allocated_mem;
- node = UT_LIST_GET_NEXT(list, node);
- }
- }
-
- if ((n_heaps == 0) && (mem_current_allocated_memory != 0)) {
- error = TRUE;
- }
-
- if (mem_total_allocated_memory < mem_current_allocated_memory) {
- error = TRUE;
- }
-
- if (mem_max_allocated_memory > mem_total_allocated_memory) {
- error = TRUE;
- }
-
- if (mem_n_created_heaps < n_heaps) {
- error = TRUE;
- }
-
- mutex_exit(&mem_hash_mutex);
-
- return(error);
-}
-
-/************************************************************//**
-Validates the dynamic memory
-@return TRUE if ok */
-UNIV_INTERN
-ibool
-mem_validate(void)
-/*==============*/
-{
- ut_a(!mem_validate_no_assert());
-
- return(TRUE);
-}
-#endif /* UNIV_MEM_DEBUG */
-
-/************************************************************//**
-Tries to find neigboring memory allocation blocks and dumps to stderr
-the neighborhood of a given pointer. */
-UNIV_INTERN
-void
-mem_analyze_corruption(
-/*===================*/
- void* ptr) /*!< in: pointer to place of possible corruption */
-{
- byte* p;
- ulint i;
- ulint dist;
-
- fputs("InnoDB: Apparent memory corruption: mem dump ", stderr);
- ut_print_buf(stderr, (byte*) ptr - 250, 500);
-
- fputs("\nInnoDB: Scanning backward trying to find"
- " previous allocated mem blocks\n", stderr);
-
- p = (byte*) ptr;
- dist = 0;
-
- for (i = 0; i < 10; i++) {
- for (;;) {
- if (((ulint) p) % 4 == 0) {
-
- if (*((ulint*) p) == MEM_BLOCK_MAGIC_N) {
- fprintf(stderr,
- "Mem block at - %lu,"
- " file %s, line %lu\n",
- (ulong) dist,
- (p + sizeof(ulint)),
- (ulong)
- (*(ulint*)(p + 8
- + sizeof(ulint))));
-
- break;
- }
-
- if (*((ulint*) p) == MEM_FREED_BLOCK_MAGIC_N) {
- fprintf(stderr,
- "Freed mem block at - %lu,"
- " file %s, line %lu\n",
- (ulong) dist,
- (p + sizeof(ulint)),
- (ulong)
- (*(ulint*)(p + 8
- + sizeof(ulint))));
-
- break;
- }
- }
-
- p--;
- dist++;
- }
-
- p--;
- dist++;
- }
-
- fprintf(stderr,
- "InnoDB: Scanning forward trying to find next"
- " allocated mem blocks\n");
-
- p = (byte*) ptr;
- dist = 0;
-
- for (i = 0; i < 10; i++) {
- for (;;) {
- if (((ulint) p) % 4 == 0) {
-
- if (*((ulint*) p) == MEM_BLOCK_MAGIC_N) {
- fprintf(stderr,
- "Mem block at + %lu, file %s,"
- " line %lu\n",
- (ulong) dist,
- (p + sizeof(ulint)),
- (ulong)
- (*(ulint*)(p + 8
- + sizeof(ulint))));
-
- break;
- }
-
- if (*((ulint*) p) == MEM_FREED_BLOCK_MAGIC_N) {
- fprintf(stderr,
- "Freed mem block at + %lu,"
- " file %s, line %lu\n",
- (ulong) dist,
- (p + sizeof(ulint)),
- (ulong)
- (*(ulint*)(p + 8
- + sizeof(ulint))));
-
- break;
- }
- }
-
- p++;
- dist++;
- }
-
- p++;
- dist++;
- }
-}
-
-#ifndef UNIV_HOTBACKUP
-/*****************************************************************//**
-Prints information of dynamic memory usage and currently allocated
-memory heaps or buffers. Can only be used in the debug version. */
-static
-void
-mem_print_info_low(
-/*===============*/
- ibool print_all) /*!< in: if TRUE, all heaps are printed,
- else only the heaps allocated after the
- previous call of this function */
-{
-#ifdef UNIV_MEM_DEBUG
- mem_hash_node_t* node;
- ulint n_heaps = 0;
- ulint allocated_mem;
- ulint ph_size;
- ulint total_allocated_mem = 0;
- ibool error;
- ulint n_blocks;
-#endif
- FILE* outfile;
-
- /* outfile = fopen("ibdebug", "a"); */
-
- outfile = stdout;
-
- fprintf(outfile, "\n");
- fprintf(outfile,
- "________________________________________________________\n");
- fprintf(outfile, "MEMORY ALLOCATION INFORMATION\n\n");
-
-#ifndef UNIV_MEM_DEBUG
-
- UT_NOT_USED(print_all);
-
- mem_pool_print_info(outfile, mem_comm_pool);
-
- fprintf(outfile,
- "Sorry, non-debug version cannot give more memory info\n");
-
- /* fclose(outfile); */
-
- return;
-#else
- mutex_enter(&mem_hash_mutex);
-
- fprintf(outfile, "LIST OF CREATED HEAPS AND ALLOCATED BUFFERS: \n\n");
-
- if (!print_all) {
- fprintf(outfile, "AFTER THE LAST PRINT INFO\n");
- }
-
- node = UT_LIST_GET_FIRST(mem_all_list_base);
-
- while (node != NULL) {
- n_heaps++;
-
- if (!print_all && node->nth_heap < mem_last_print_info) {
-
- goto next_heap;
- }
-
- mem_heap_validate_or_print(node->heap, NULL,
- FALSE, &error, &allocated_mem,
- &ph_size, &n_blocks);
- total_allocated_mem += allocated_mem;
-
- fprintf(outfile,
- "%lu: file %s line %lu of size %lu phys.size %lu"
- " with %lu blocks, type %lu\n",
- node->nth_heap,
- innobase_basename(node->file_name), node->line,
- allocated_mem, ph_size, n_blocks,
- (node->heap)->type);
-next_heap:
- node = UT_LIST_GET_NEXT(all_list, node);
- }
-
- fprintf(outfile, "\n");
-
- fprintf(outfile, "Current allocated memory : %lu\n",
- mem_current_allocated_memory);
- fprintf(outfile, "Current allocated heaps and buffers : %lu\n",
- n_heaps);
- fprintf(outfile, "Cumulative allocated memory : %lu\n",
- mem_total_allocated_memory);
- fprintf(outfile, "Maximum allocated memory : %lu\n",
- mem_max_allocated_memory);
- fprintf(outfile, "Cumulative created heaps and buffers : %lu\n",
- mem_n_created_heaps);
- fprintf(outfile, "Cumulative number of allocations : %lu\n",
- mem_n_allocations);
-
- mem_last_print_info = mem_n_created_heaps;
-
- mutex_exit(&mem_hash_mutex);
-
- mem_pool_print_info(outfile, mem_comm_pool);
-
- /* mem_validate(); */
-
- /* fclose(outfile); */
-#endif
-}
-
-/*****************************************************************//**
-Prints information of dynamic memory usage and currently allocated memory
-heaps or buffers. Can only be used in the debug version. */
-UNIV_INTERN
-void
-mem_print_info(void)
-/*================*/
-{
- mem_print_info_low(TRUE);
-}
-
-/*****************************************************************//**
-Prints information of dynamic memory usage and currently allocated memory
-heaps or buffers since the last ..._print_info or..._print_new_info. */
-UNIV_INTERN
-void
-mem_print_new_info(void)
-/*====================*/
-{
- mem_print_info_low(FALSE);
-}
-#endif /* !UNIV_HOTBACKUP */
diff --git a/storage/xtradb/mem/mem0mem.cc b/storage/xtradb/mem/mem0mem.cc
deleted file mode 100644
index e066aff5b30..00000000000
--- a/storage/xtradb/mem/mem0mem.cc
+++ /dev/null
@@ -1,583 +0,0 @@
-/*****************************************************************************
-
-Copyright (c) 1994, 2011, 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 mem/mem0mem.cc
-The memory management
-
-Created 6/9/1994 Heikki Tuuri
-*************************************************************************/
-
-#include "mem0mem.h"
-#ifdef UNIV_NONINL
-#include "mem0mem.ic"
-#endif
-
-#include "buf0buf.h"
-#include "srv0srv.h"
-#include "mem0dbg.cc"
-#include <stdarg.h>
-
-/*
- THE MEMORY MANAGEMENT
- =====================
-
-The basic element of the memory management is called a memory
-heap. A memory heap is conceptually a
-stack from which memory can be allocated. The stack may grow infinitely.
-The top element of the stack may be freed, or
-the whole stack can be freed at one time. The advantage of the
-memory heap concept is that we can avoid using the malloc and free
-functions of C which are quite expensive, for example, on the Solaris + GCC
-system (50 MHz Sparc, 1993) the pair takes 3 microseconds,
-on Win NT + 100MHz Pentium, 2.5 microseconds.
-When we use a memory heap,
-we can allocate larger blocks of memory at a time and thus
-reduce overhead. Slightly more efficient the method is when we
-allocate the memory from the index page buffer pool, as we can
-claim a new page fast. This is called buffer allocation.
-When we allocate the memory from the dynamic memory of the
-C environment, that is called dynamic allocation.
-
-The default way of operation of the memory heap is the following.
-First, when the heap is created, an initial block of memory is
-allocated. In dynamic allocation this may be about 50 bytes.
-If more space is needed, additional blocks are allocated
-and they are put into a linked list.
-After the initial block, each allocated block is twice the size of the
-previous, until a threshold is attained, after which the sizes
-of the blocks stay the same. An exception is, of course, the case
-where the caller requests a memory buffer whose size is
-bigger than the threshold. In that case a block big enough must
-be allocated.
-
-The heap is physically arranged so that if the current block
-becomes full, a new block is allocated and always inserted in the
-chain of blocks as the last block.
-
-In the debug version of the memory management, all the allocated
-heaps are kept in a list (which is implemented as a hash table).
-Thus we can notice if the caller tries to free an already freed
-heap. In addition, each buffer given to the caller contains
-start field at the start and a trailer field at the end of the buffer.
-
-The start field has the following content:
-A. sizeof(ulint) bytes of field length (in the standard byte order)
-B. sizeof(ulint) bytes of check field (a random number)
-
-The trailer field contains:
-A. sizeof(ulint) bytes of check field (the same random number as at the start)
-
-Thus we can notice if something has been copied over the
-borders of the buffer, which is illegal.
-The memory in the buffers is initialized to a random byte sequence.
-After freeing, all the blocks in the heap are set to random bytes
-to help us discover errors which result from the use of
-buffers in an already freed heap. */
-
-#ifdef MEM_PERIODIC_CHECK
-
-ibool mem_block_list_inited;
-/* List of all mem blocks allocated; protected by the mem_comm_pool mutex */
-UT_LIST_BASE_NODE_T(mem_block_t) mem_block_list;
-
-#endif
-
-/**********************************************************************//**
-Duplicates a NUL-terminated string, allocated from a memory heap.
-@return own: a copy of the string */
-UNIV_INTERN
-char*
-mem_heap_strdup(
-/*============*/
- mem_heap_t* heap, /*!< in: memory heap where string is allocated */
- const char* str) /*!< in: string to be copied */
-{
- return(static_cast<char*>(mem_heap_dup(heap, str, strlen(str) + 1)));
-}
-
-/**********************************************************************//**
-Duplicate a block of data, allocated from a memory heap.
-@return own: a copy of the data */
-UNIV_INTERN
-void*
-mem_heap_dup(
-/*=========*/
- mem_heap_t* heap, /*!< in: memory heap where copy is allocated */
- const void* data, /*!< in: data to be copied */
- ulint len) /*!< in: length of data, in bytes */
-{
- return(memcpy(mem_heap_alloc(heap, len), data, len));
-}
-
-/**********************************************************************//**
-Concatenate two strings and return the result, using a memory heap.
-@return own: the result */
-UNIV_INTERN
-char*
-mem_heap_strcat(
-/*============*/
- mem_heap_t* heap, /*!< in: memory heap where string is allocated */
- const char* s1, /*!< in: string 1 */
- const char* s2) /*!< in: string 2 */
-{
- char* s;
- ulint s1_len = strlen(s1);
- ulint s2_len = strlen(s2);
-
- s = static_cast<char*>(mem_heap_alloc(heap, s1_len + s2_len + 1));
-
- memcpy(s, s1, s1_len);
- memcpy(s + s1_len, s2, s2_len);
-
- s[s1_len + s2_len] = '\0';
-
- return(s);
-}
-
-
-/****************************************************************//**
-Helper function for mem_heap_printf.
-@return length of formatted string, including terminating NUL */
-static
-ulint
-mem_heap_printf_low(
-/*================*/
- char* buf, /*!< in/out: buffer to store formatted string
- in, or NULL to just calculate length */
- const char* format, /*!< in: format string */
- va_list ap) /*!< in: arguments */
-{
- ulint len = 0;
-
- while (*format) {
-
- /* Does this format specifier have the 'l' length modifier. */
- ibool is_long = FALSE;
-
- /* Length of one parameter. */
- size_t plen;
-
- if (*format++ != '%') {
- /* Non-format character. */
-
- len++;
-
- if (buf) {
- *buf++ = *(format - 1);
- }
-
- continue;
- }
-
- if (*format == 'l') {
- is_long = TRUE;
- format++;
- }
-
- switch (*format++) {
- case 's':
- /* string */
- {
- char* s = va_arg(ap, char*);
-
- /* "%ls" is a non-sensical format specifier. */
- ut_a(!is_long);
-
- plen = strlen(s);
- len += plen;
-
- if (buf) {
- memcpy(buf, s, plen);
- buf += plen;
- }
- }
-
- break;
-
- case 'u':
- /* unsigned int */
- {
- char tmp[32];
- unsigned long val;
-
- /* We only support 'long' values for now. */
- ut_a(is_long);
-
- val = va_arg(ap, unsigned long);
-
- plen = sprintf(tmp, "%lu", val);
- len += plen;
-
- if (buf) {
- memcpy(buf, tmp, plen);
- buf += plen;
- }
- }
-
- break;
-
- case '%':
-
- /* "%l%" is a non-sensical format specifier. */
- ut_a(!is_long);
-
- len++;
-
- if (buf) {
- *buf++ = '%';
- }
-
- break;
-
- default:
- ut_error;
- }
- }
-
- /* For the NUL character. */
- len++;
-
- if (buf) {
- *buf = '\0';
- }
-
- return(len);
-}
-
-/****************************************************************//**
-A simple sprintf replacement that dynamically allocates the space for the
-formatted string from the given heap. This supports a very limited set of
-the printf syntax: types 's' and 'u' and length modifier 'l' (which is
-required for the 'u' type).
-@return heap-allocated formatted string */
-UNIV_INTERN
-char*
-mem_heap_printf(
-/*============*/
- mem_heap_t* heap, /*!< in: memory heap */
- const char* format, /*!< in: format string */
- ...)
-{
- va_list ap;
- char* str;
- ulint len;
-
- /* Calculate length of string */
- len = 0;
- va_start(ap, format);
- len = mem_heap_printf_low(NULL, format, ap);
- va_end(ap);
-
- /* Now create it for real. */
- str = static_cast<char*>(mem_heap_alloc(heap, len));
- va_start(ap, format);
- mem_heap_printf_low(str, format, ap);
- va_end(ap);
-
- return(str);
-}
-
-/***************************************************************//**
-Creates a memory heap block where data can be allocated.
-@return own: memory heap block, NULL if did not succeed (only possible
-for MEM_HEAP_BTR_SEARCH type heaps) */
-UNIV_INTERN
-mem_block_t*
-mem_heap_create_block_func(
-/*=======================*/
- mem_heap_t* heap, /*!< in: memory heap or NULL if first block
- should be created */
- ulint n, /*!< in: number of bytes needed for user data */
-#ifdef UNIV_DEBUG
- const char* file_name,/*!< in: file name where created */
- ulint line, /*!< in: line where created */
-#endif /* UNIV_DEBUG */
- ulint type) /*!< in: type of heap: MEM_HEAP_DYNAMIC or
- MEM_HEAP_BUFFER */
-{
-#ifndef UNIV_HOTBACKUP
- buf_block_t* buf_block = NULL;
-#endif /* !UNIV_HOTBACKUP */
- mem_block_t* block;
- ulint len;
-
- ut_ad((type == MEM_HEAP_DYNAMIC) || (type == MEM_HEAP_BUFFER)
- || (type == MEM_HEAP_BUFFER + MEM_HEAP_BTR_SEARCH));
-
- if (heap && heap->magic_n != MEM_BLOCK_MAGIC_N) {
- mem_analyze_corruption(heap);
- }
-
- /* In dynamic allocation, calculate the size: block header + data. */
- len = MEM_BLOCK_HEADER_SIZE + MEM_SPACE_NEEDED(n);
-
-#ifndef UNIV_HOTBACKUP
- if (type == MEM_HEAP_DYNAMIC || len < UNIV_PAGE_SIZE / 2) {
-
- ut_ad(type == MEM_HEAP_DYNAMIC || n <= MEM_MAX_ALLOC_IN_BUF);
-
- block = static_cast<mem_block_t*>(
- mem_area_alloc(&len, mem_comm_pool));
- } else {
- len = UNIV_PAGE_SIZE;
-
- if ((type & MEM_HEAP_BTR_SEARCH) && heap) {
- /* We cannot allocate the block from the
- buffer pool, but must get the free block from
- the heap header free block field */
-
- buf_block = static_cast<buf_block_t*>(heap->free_block);
- heap->free_block = NULL;
-
- if (UNIV_UNLIKELY(!buf_block)) {
-
- return(NULL);
- }
- } else {
- buf_block = buf_block_alloc(NULL);
- }
-
- block = (mem_block_t*) buf_block->frame;
- }
-
- if(!block) {
- ib_logf(IB_LOG_LEVEL_FATAL,
- " InnoDB: Unable to allocate memory of size %lu.\n",
- len);
- }
- block->buf_block = buf_block;
- block->free_block = NULL;
-#else /* !UNIV_HOTBACKUP */
- len = MEM_BLOCK_HEADER_SIZE + MEM_SPACE_NEEDED(n);
- block = ut_malloc(len);
- ut_ad(block);
-#endif /* !UNIV_HOTBACKUP */
-
- block->magic_n = MEM_BLOCK_MAGIC_N;
- ut_d(ut_strlcpy_rev(block->file_name, file_name,
- sizeof(block->file_name)));
- ut_d(block->line = line);
-
-#ifdef MEM_PERIODIC_CHECK
- mutex_enter(&(mem_comm_pool->mutex));
-
- if (!mem_block_list_inited) {
- mem_block_list_inited = TRUE;
- UT_LIST_INIT(mem_block_list);
- }
-
- UT_LIST_ADD_LAST(mem_block_list, mem_block_list, block);
-
- mutex_exit(&(mem_comm_pool->mutex));
-#endif
- mem_block_set_len(block, len);
- mem_block_set_type(block, type);
- mem_block_set_free(block, MEM_BLOCK_HEADER_SIZE);
- mem_block_set_start(block, MEM_BLOCK_HEADER_SIZE);
-
- if (UNIV_UNLIKELY(heap == NULL)) {
- /* This is the first block of the heap. The field
- total_size should be initialized here */
- block->total_size = len;
- } else {
- /* Not the first allocation for the heap. This block's
- total_length field should be set to undefined. */
- ut_d(block->total_size = ULINT_UNDEFINED);
- UNIV_MEM_INVALID(&block->total_size,
- sizeof block->total_size);
-
- heap->total_size += len;
- }
-
- ut_ad((ulint)MEM_BLOCK_HEADER_SIZE < len);
-
- return(block);
-}
-
-/***************************************************************//**
-Adds a new block to a memory heap.
-@return created block, NULL if did not succeed (only possible for
-MEM_HEAP_BTR_SEARCH type heaps) */
-UNIV_INTERN
-mem_block_t*
-mem_heap_add_block(
-/*===============*/
- mem_heap_t* heap, /*!< in: memory heap */
- ulint n) /*!< in: number of bytes user needs */
-{
- mem_block_t* block;
- mem_block_t* new_block;
- ulint new_size;
-
- ut_ad(mem_heap_check(heap));
-
- block = UT_LIST_GET_LAST(heap->base);
-
- /* We have to allocate a new block. The size is always at least
- doubled until the standard size is reached. After that the size
- stays the same, except in cases where the caller needs more space. */
-
- new_size = 2 * mem_block_get_len(block);
-
- if (heap->type != MEM_HEAP_DYNAMIC) {
- /* From the buffer pool we allocate buffer frames */
- ut_a(n <= MEM_MAX_ALLOC_IN_BUF);
-
- if (new_size > MEM_MAX_ALLOC_IN_BUF) {
- new_size = MEM_MAX_ALLOC_IN_BUF;
- }
- } else if (new_size > MEM_BLOCK_STANDARD_SIZE) {
-
- new_size = MEM_BLOCK_STANDARD_SIZE;
- }
-
- if (new_size < n) {
- new_size = n;
- }
-
- new_block = mem_heap_create_block(heap, new_size, heap->type,
- heap->file_name, heap->line);
- if (new_block == NULL) {
-
- return(NULL);
- }
-
- /* Add the new block as the last block */
-
- UT_LIST_INSERT_AFTER(list, heap->base, block, new_block);
-
- return(new_block);
-}
-
-/******************************************************************//**
-Frees a block from a memory heap. */
-UNIV_INTERN
-void
-mem_heap_block_free(
-/*================*/
- mem_heap_t* heap, /*!< in: heap */
- mem_block_t* block) /*!< in: block to free */
-{
- ulint type;
- ulint len;
-#ifndef UNIV_HOTBACKUP
- buf_block_t* buf_block;
-
- buf_block = static_cast<buf_block_t*>(block->buf_block);
-#endif /* !UNIV_HOTBACKUP */
-
- if (block->magic_n != MEM_BLOCK_MAGIC_N) {
- mem_analyze_corruption(block);
- }
-
- UT_LIST_REMOVE(list, heap->base, block);
-
-#ifdef MEM_PERIODIC_CHECK
- mutex_enter(&(mem_comm_pool->mutex));
-
- UT_LIST_REMOVE(mem_block_list, mem_block_list, block);
-
- mutex_exit(&(mem_comm_pool->mutex));
-#endif
-
- ut_ad(heap->total_size >= block->len);
- heap->total_size -= block->len;
-
- type = heap->type;
- len = block->len;
- block->magic_n = MEM_FREED_BLOCK_MAGIC_N;
-
-#ifndef UNIV_HOTBACKUP
- if (!srv_use_sys_malloc) {
-#ifdef UNIV_MEM_DEBUG
- /* In the debug version we set the memory to a random
- combination of hex 0xDE and 0xAD. */
-
- mem_erase_buf((byte*) block, len);
-#else /* UNIV_MEM_DEBUG */
- UNIV_MEM_ASSERT_AND_FREE(block, len);
-#endif /* UNIV_MEM_DEBUG */
-
- }
- if (type == MEM_HEAP_DYNAMIC || len < UNIV_PAGE_SIZE / 2) {
-
- ut_ad(!buf_block);
- mem_area_free(block, mem_comm_pool);
- } else {
- ut_ad(type & MEM_HEAP_BUFFER);
-
- buf_block_free(buf_block);
- }
-#else /* !UNIV_HOTBACKUP */
-#ifdef UNIV_MEM_DEBUG
- /* In the debug version we set the memory to a random
- combination of hex 0xDE and 0xAD. */
-
- mem_erase_buf((byte*) block, len);
-#else /* UNIV_MEM_DEBUG */
- UNIV_MEM_ASSERT_AND_FREE(block, len);
-#endif /* UNIV_MEM_DEBUG */
- ut_free(block);
-#endif /* !UNIV_HOTBACKUP */
-}
-
-#ifndef UNIV_HOTBACKUP
-/******************************************************************//**
-Frees the free_block field from a memory heap. */
-UNIV_INTERN
-void
-mem_heap_free_block_free(
-/*=====================*/
- mem_heap_t* heap) /*!< in: heap */
-{
- if (UNIV_LIKELY_NULL(heap->free_block)) {
-
- buf_block_free(static_cast<buf_block_t*>(heap->free_block));
-
- heap->free_block = NULL;
- }
-}
-#endif /* !UNIV_HOTBACKUP */
-
-#ifdef MEM_PERIODIC_CHECK
-/******************************************************************//**
-Goes through the list of all allocated mem blocks, checks their magic
-numbers, and reports possible corruption. */
-UNIV_INTERN
-void
-mem_validate_all_blocks(void)
-/*=========================*/
-{
- mem_block_t* block;
-
- mutex_enter(&(mem_comm_pool->mutex));
-
- block = UT_LIST_GET_FIRST(mem_block_list);
-
- while (block) {
- if (block->magic_n != MEM_BLOCK_MAGIC_N) {
- mem_analyze_corruption(block);
- }
-
- block = UT_LIST_GET_NEXT(mem_block_list, block);
- }
-
- mutex_exit(&(mem_comm_pool->mutex));
-}
-#endif
diff --git a/storage/xtradb/mem/mem0pool.cc b/storage/xtradb/mem/mem0pool.cc
deleted file mode 100644
index 42d0417c768..00000000000
--- a/storage/xtradb/mem/mem0pool.cc
+++ /dev/null
@@ -1,728 +0,0 @@
-/*****************************************************************************
-
-Copyright (c) 1997, 2011, 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 mem/mem0pool.cc
-The lowest-level memory management
-
-Created 5/12/1997 Heikki Tuuri
-*************************************************************************/
-
-#include "mem0pool.h"
-#ifdef UNIV_NONINL
-#include "mem0pool.ic"
-#endif
-
-#include "srv0srv.h"
-#include "sync0sync.h"
-#include "ut0mem.h"
-#include "ut0lst.h"
-#include "ut0byte.h"
-#include "mem0mem.h"
-#include "srv0start.h"
-
-/* We would like to use also the buffer frames to allocate memory. This
-would be desirable, because then the memory consumption of the database
-would be fixed, and we might even lock the buffer pool to the main memory.
-The problem here is that the buffer management routines can themselves call
-memory allocation, while the buffer pool mutex is reserved.
-
-The main components of the memory consumption are:
-
-1. buffer pool,
-2. parsed and optimized SQL statements,
-3. data dictionary cache,
-4. log buffer,
-5. locks for each transaction,
-6. hash table for the adaptive index,
-7. state and buffers for each SQL query currently being executed,
-8. session for each user, and
-9. stack for each OS thread.
-
-Items 1 and 2 are managed by an LRU algorithm. Items 5 and 6 can potentially
-consume very much memory. Items 7 and 8 should consume quite little memory,
-and the OS should take care of item 9, which too should consume little memory.
-
-A solution to the memory management:
-
-1. the buffer pool size is set separately;
-2. log buffer size is set separately;
-3. the common pool size for all the other entries, except 8, is set separately.
-
-Problems: we may waste memory if the common pool is set too big. Another
-problem is the locks, which may take very much space in big transactions.
-Then the shared pool size should be set very big. We can allow locks to take
-space from the buffer pool, but the SQL optimizer is then unaware of the
-usable size of the buffer pool. We could also combine the objects in the
-common pool and the buffers in the buffer pool into a single LRU list and
-manage it uniformly, but this approach does not take into account the parsing
-and other costs unique to SQL statements.
-
-The locks for a transaction can be seen as a part of the state of the
-transaction. Hence, they should be stored in the common pool. We still
-have the problem of a very big update transaction, for example, which
-will set very many x-locks on rows, and the locks will consume a lot
-of memory, say, half of the buffer pool size.
-
-Another problem is what to do if we are not able to malloc a requested
-block of memory from the common pool. Then we can request memory from
-the operating system. If it does not help, a system error results.
-
-Because 5 and 6 may potentially consume very much memory, we let them grow
-into the buffer pool. We may let the locks of a transaction take frames
-from the buffer pool, when the corresponding memory heap block has grown to
-the size of a buffer frame. Similarly for the hash node cells of the locks,
-and for the adaptive index. Thus, for each individual transaction, its locks
-can occupy at most about the size of the buffer frame of memory in the common
-pool, and after that its locks will grow into the buffer pool. */
-
-/** Mask used to extract the free bit from area->size */
-#define MEM_AREA_FREE 1
-
-/** The smallest memory area total size */
-#define MEM_AREA_MIN_SIZE (2 * MEM_AREA_EXTRA_SIZE)
-
-
-/** Data structure for a memory pool. The space is allocated using the buddy
-algorithm, where free list i contains areas of size 2 to power i. */
-struct mem_pool_t{
- byte* buf; /*!< memory pool */
- ulint size; /*!< memory common pool size */
- ulint reserved; /*!< amount of currently allocated
- memory */
- ib_mutex_t mutex; /*!< mutex protecting this struct */
- UT_LIST_BASE_NODE_T(mem_area_t)
- free_list[64]; /*!< lists of free memory areas: an
- area is put to the list whose number
- is the 2-logarithm of the area size */
-};
-
-/** The common memory pool */
-UNIV_INTERN mem_pool_t* mem_comm_pool = NULL;
-
-#ifdef UNIV_PFS_MUTEX
-/* Key to register mutex in mem_pool_t with performance schema */
-UNIV_INTERN mysql_pfs_key_t mem_pool_mutex_key;
-#endif /* UNIV_PFS_MUTEX */
-
-/* We use this counter to check that the mem pool mutex does not leak;
-this is to track a strange assertion failure reported at
-mysql@lists.mysql.com */
-
-UNIV_INTERN ulint mem_n_threads_inside = 0;
-
-/********************************************************************//**
-Reserves the mem pool mutex if we are not in server shutdown. Use
-this function only in memory free functions, since only memory
-free functions are used during server shutdown. */
-UNIV_INLINE
-void
-mem_pool_mutex_enter(
-/*=================*/
- mem_pool_t* pool) /*!< in: memory pool */
-{
- if (srv_shutdown_state < SRV_SHUTDOWN_EXIT_THREADS) {
- mutex_enter(&(pool->mutex));
- }
-}
-
-/********************************************************************//**
-Releases the mem pool mutex if we are not in server shutdown. As
-its corresponding mem_pool_mutex_enter() function, use it only
-in memory free functions */
-UNIV_INLINE
-void
-mem_pool_mutex_exit(
-/*================*/
- mem_pool_t* pool) /*!< in: memory pool */
-{
- if (srv_shutdown_state < SRV_SHUTDOWN_EXIT_THREADS) {
- mutex_exit(&(pool->mutex));
- }
-}
-
-/********************************************************************//**
-Returns memory area size.
-@return size */
-UNIV_INLINE
-ulint
-mem_area_get_size(
-/*==============*/
- mem_area_t* area) /*!< in: area */
-{
- return(area->size_and_free & ~MEM_AREA_FREE);
-}
-
-/********************************************************************//**
-Sets memory area size. */
-UNIV_INLINE
-void
-mem_area_set_size(
-/*==============*/
- mem_area_t* area, /*!< in: area */
- ulint size) /*!< in: size */
-{
- area->size_and_free = (area->size_and_free & MEM_AREA_FREE)
- | size;
-}
-
-/********************************************************************//**
-Returns memory area free bit.
-@return TRUE if free */
-UNIV_INLINE
-ibool
-mem_area_get_free(
-/*==============*/
- mem_area_t* area) /*!< in: area */
-{
-#if TRUE != MEM_AREA_FREE
-# error "TRUE != MEM_AREA_FREE"
-#endif
- return(area->size_and_free & MEM_AREA_FREE);
-}
-
-/********************************************************************//**
-Sets memory area free bit. */
-UNIV_INLINE
-void
-mem_area_set_free(
-/*==============*/
- mem_area_t* area, /*!< in: area */
- ibool free) /*!< in: free bit value */
-{
-#if TRUE != MEM_AREA_FREE
-# error "TRUE != MEM_AREA_FREE"
-#endif
- area->size_and_free = (area->size_and_free & ~MEM_AREA_FREE)
- | free;
-}
-
-/********************************************************************//**
-Creates a memory pool.
-@return memory pool */
-UNIV_INTERN
-mem_pool_t*
-mem_pool_create(
-/*============*/
- ulint size) /*!< in: pool size in bytes */
-{
- mem_pool_t* pool;
- mem_area_t* area;
- ulint i;
- ulint used;
-
- pool = static_cast<mem_pool_t*>(ut_malloc(sizeof(mem_pool_t)));
-
- pool->buf = static_cast<byte*>(ut_malloc_low(size, TRUE));
- pool->size = size;
-
- mutex_create(mem_pool_mutex_key, &pool->mutex, SYNC_MEM_POOL);
-
- /* Initialize the free lists */
-
- for (i = 0; i < 64; i++) {
-
- UT_LIST_INIT(pool->free_list[i]);
- }
-
- used = 0;
-
- while (size - used >= MEM_AREA_MIN_SIZE) {
-
- i = ut_2_log(size - used);
-
- if (ut_2_exp(i) > size - used) {
-
- /* ut_2_log rounds upward */
-
- i--;
- }
-
- area = (mem_area_t*)(pool->buf + used);
-
- mem_area_set_size(area, ut_2_exp(i));
- mem_area_set_free(area, TRUE);
- UNIV_MEM_FREE(MEM_AREA_EXTRA_SIZE + (byte*) area,
- ut_2_exp(i) - MEM_AREA_EXTRA_SIZE);
-
- UT_LIST_ADD_FIRST(free_list, pool->free_list[i], area);
-
- used = used + ut_2_exp(i);
- }
-
- ut_ad(size >= used);
-
- pool->reserved = 0;
-
- return(pool);
-}
-
-/********************************************************************//**
-Frees a memory pool. */
-UNIV_INTERN
-void
-mem_pool_free(
-/*==========*/
- mem_pool_t* pool) /*!< in, own: memory pool */
-{
- mutex_free(&pool->mutex);
- ut_free(pool->buf);
- ut_free(pool);
-}
-
-/********************************************************************//**
-Fills the specified free list.
-@return TRUE if we were able to insert a block to the free list */
-static
-ibool
-mem_pool_fill_free_list(
-/*====================*/
- ulint i, /*!< in: free list index */
- mem_pool_t* pool) /*!< in: memory pool */
-{
- mem_area_t* area;
- mem_area_t* area2;
- ibool ret;
-
- ut_ad(mutex_own(&(pool->mutex)));
-
- if (UNIV_UNLIKELY(i >= 63)) {
- /* We come here when we have run out of space in the
- memory pool: */
-
- return(FALSE);
- }
-
- area = UT_LIST_GET_FIRST(pool->free_list[i + 1]);
-
- if (area == NULL) {
- if (UT_LIST_GET_LEN(pool->free_list[i + 1]) > 0) {
- ut_print_timestamp(stderr);
-
- fprintf(stderr,
- " InnoDB: Error: mem pool free list %lu"
- " length is %lu\n"
- "InnoDB: though the list is empty!\n",
- (ulong) i + 1,
- (ulong)
- UT_LIST_GET_LEN(pool->free_list[i + 1]));
- }
-
- ret = mem_pool_fill_free_list(i + 1, pool);
-
- if (ret == FALSE) {
-
- return(FALSE);
- }
-
- area = UT_LIST_GET_FIRST(pool->free_list[i + 1]);
- }
-
- if (UNIV_UNLIKELY(UT_LIST_GET_LEN(pool->free_list[i + 1]) == 0)) {
- mem_analyze_corruption(area);
-
- ut_error;
- }
-
- UT_LIST_REMOVE(free_list, pool->free_list[i + 1], area);
-
- area2 = (mem_area_t*)(((byte*) area) + ut_2_exp(i));
- UNIV_MEM_ALLOC(area2, MEM_AREA_EXTRA_SIZE);
-
- mem_area_set_size(area2, ut_2_exp(i));
- mem_area_set_free(area2, TRUE);
-
- UT_LIST_ADD_FIRST(free_list, pool->free_list[i], area2);
-
- mem_area_set_size(area, ut_2_exp(i));
-
- UT_LIST_ADD_FIRST(free_list, pool->free_list[i], area);
-
- return(TRUE);
-}
-
-/********************************************************************//**
-Allocates memory from a pool. NOTE: This low-level function should only be
-used in mem0mem.*!
-@return own: allocated memory buffer */
-UNIV_INTERN
-void*
-mem_area_alloc(
-/*===========*/
- ulint* psize, /*!< in: requested size in bytes; for optimum
- space usage, the size should be a power of 2
- minus MEM_AREA_EXTRA_SIZE;
- out: allocated size in bytes (greater than
- or equal to the requested size) */
- mem_pool_t* pool) /*!< in: memory pool */
-{
- mem_area_t* area;
- ulint size;
- ulint n;
- ibool ret;
-
- /* If we are using os allocator just make a simple call
- to malloc */
- if (UNIV_LIKELY(srv_use_sys_malloc)) {
- return(malloc(*psize));
- }
-
- size = *psize;
- n = ut_2_log(ut_max(size + MEM_AREA_EXTRA_SIZE, MEM_AREA_MIN_SIZE));
-
- mutex_enter(&(pool->mutex));
- mem_n_threads_inside++;
-
- ut_a(mem_n_threads_inside == 1);
-
- area = UT_LIST_GET_FIRST(pool->free_list[n]);
-
- if (area == NULL) {
- ret = mem_pool_fill_free_list(n, pool);
-
- if (ret == FALSE) {
- /* Out of memory in memory pool: we try to allocate
- from the operating system with the regular malloc: */
-
- mem_n_threads_inside--;
- mutex_exit(&(pool->mutex));
-
- return(ut_malloc(size));
- }
-
- area = UT_LIST_GET_FIRST(pool->free_list[n]);
- }
-
- if (!mem_area_get_free(area)) {
- fprintf(stderr,
- "InnoDB: Error: Removing element from mem pool"
- " free list %lu though the\n"
- "InnoDB: element is not marked free!\n",
- (ulong) n);
-
- mem_analyze_corruption(area);
-
- /* Try to analyze a strange assertion failure reported at
- mysql@lists.mysql.com where the free bit IS 1 in the
- hex dump above */
-
- if (mem_area_get_free(area)) {
- fprintf(stderr,
- "InnoDB: Probably a race condition"
- " because now the area is marked free!\n");
- }
-
- ut_error;
- }
-
- if (UT_LIST_GET_LEN(pool->free_list[n]) == 0) {
- fprintf(stderr,
- "InnoDB: Error: Removing element from mem pool"
- " free list %lu\n"
- "InnoDB: though the list length is 0!\n",
- (ulong) n);
- mem_analyze_corruption(area);
-
- ut_error;
- }
-
- ut_ad(mem_area_get_size(area) == ut_2_exp(n));
-
- mem_area_set_free(area, FALSE);
-
- UT_LIST_REMOVE(free_list, pool->free_list[n], area);
-
- pool->reserved += mem_area_get_size(area);
-
- mem_n_threads_inside--;
- mutex_exit(&(pool->mutex));
-
- ut_ad(mem_pool_validate(pool));
-
- *psize = ut_2_exp(n) - MEM_AREA_EXTRA_SIZE;
- UNIV_MEM_ALLOC(MEM_AREA_EXTRA_SIZE + (byte*) area, *psize);
-
- return((void*)(MEM_AREA_EXTRA_SIZE + ((byte*) area)));
-}
-
-/********************************************************************//**
-Gets the buddy of an area, if it exists in pool.
-@return the buddy, NULL if no buddy in pool */
-UNIV_INLINE
-mem_area_t*
-mem_area_get_buddy(
-/*===============*/
- mem_area_t* area, /*!< in: memory area */
- ulint size, /*!< in: memory area size */
- mem_pool_t* pool) /*!< in: memory pool */
-{
- mem_area_t* buddy;
-
- ut_ad(size != 0);
-
- if (((((byte*) area) - pool->buf) % (2 * size)) == 0) {
-
- /* The buddy is in a higher address */
-
- buddy = (mem_area_t*)(((byte*) area) + size);
-
- if ((((byte*) buddy) - pool->buf) + size > pool->size) {
-
- /* The buddy is not wholly contained in the pool:
- there is no buddy */
-
- buddy = NULL;
- }
- } else {
- /* The buddy is in a lower address; NOTE that area cannot
- be at the pool lower end, because then we would end up to
- the upper branch in this if-clause: the remainder would be
- 0 */
-
- buddy = (mem_area_t*)(((byte*) area) - size);
- }
-
- return(buddy);
-}
-
-/********************************************************************//**
-Frees memory to a pool. */
-UNIV_INTERN
-void
-mem_area_free(
-/*==========*/
- void* ptr, /*!< in, own: pointer to allocated memory
- buffer */
- mem_pool_t* pool) /*!< in: memory pool */
-{
- mem_area_t* area;
- mem_area_t* buddy;
- void* new_ptr;
- ulint size;
- ulint n;
-
- if (UNIV_LIKELY(srv_use_sys_malloc)) {
- free(ptr);
-
- return;
- }
-
- /* It may be that the area was really allocated from the OS with
- regular malloc: check if ptr points within our memory pool */
-
- if ((byte*) ptr < pool->buf || (byte*) ptr >= pool->buf + pool->size) {
- ut_free(ptr);
-
- return;
- }
-
- area = (mem_area_t*) (((byte*) ptr) - MEM_AREA_EXTRA_SIZE);
-
- if (mem_area_get_free(area)) {
- fprintf(stderr,
- "InnoDB: Error: Freeing element to mem pool"
- " free list though the\n"
- "InnoDB: element is marked free!\n");
-
- mem_analyze_corruption(area);
- ut_error;
- }
-
- size = mem_area_get_size(area);
- UNIV_MEM_FREE(ptr, size - MEM_AREA_EXTRA_SIZE);
-
- if (size == 0) {
- fprintf(stderr,
- "InnoDB: Error: Mem area size is 0. Possibly a"
- " memory overrun of the\n"
- "InnoDB: previous allocated area!\n");
-
- mem_analyze_corruption(area);
- ut_error;
- }
-
-#ifdef UNIV_LIGHT_MEM_DEBUG
- if (((byte*) area) + size < pool->buf + pool->size) {
-
- ulint next_size;
-
- next_size = mem_area_get_size(
- (mem_area_t*)(((byte*) area) + size));
- if (UNIV_UNLIKELY(!next_size || !ut_is_2pow(next_size))) {
- fprintf(stderr,
- "InnoDB: Error: Memory area size %lu,"
- " next area size %lu not a power of 2!\n"
- "InnoDB: Possibly a memory overrun of"
- " the buffer being freed here.\n",
- (ulong) size, (ulong) next_size);
- mem_analyze_corruption(area);
-
- ut_error;
- }
- }
-#endif
- buddy = mem_area_get_buddy(area, size, pool);
-
- n = ut_2_log(size);
-
- mem_pool_mutex_enter(pool);
- mem_n_threads_inside++;
-
- ut_a(mem_n_threads_inside == 1);
-
- if (buddy && mem_area_get_free(buddy)
- && (size == mem_area_get_size(buddy))) {
-
- /* The buddy is in a free list */
-
- if ((byte*) buddy < (byte*) area) {
- new_ptr = ((byte*) buddy) + MEM_AREA_EXTRA_SIZE;
-
- mem_area_set_size(buddy, 2 * size);
- mem_area_set_free(buddy, FALSE);
- } else {
- new_ptr = ptr;
-
- mem_area_set_size(area, 2 * size);
- }
-
- /* Remove the buddy from its free list and merge it to area */
-
- UT_LIST_REMOVE(free_list, pool->free_list[n], buddy);
-
- pool->reserved += ut_2_exp(n);
-
- mem_n_threads_inside--;
- mem_pool_mutex_exit(pool);
-
- mem_area_free(new_ptr, pool);
-
- return;
- } else {
- UT_LIST_ADD_FIRST(free_list, pool->free_list[n], area);
-
- mem_area_set_free(area, TRUE);
-
- ut_ad(pool->reserved >= size);
-
- pool->reserved -= size;
- }
-
- mem_n_threads_inside--;
- mem_pool_mutex_exit(pool);
-
- ut_ad(mem_pool_validate(pool));
-}
-
-/********************************************************************//**
-Validates a memory pool.
-@return TRUE if ok */
-UNIV_INTERN
-ibool
-mem_pool_validate(
-/*==============*/
- mem_pool_t* pool) /*!< in: memory pool */
-{
- mem_area_t* area;
- mem_area_t* buddy;
- ulint free;
- ulint i;
-
- mem_pool_mutex_enter(pool);
-
- free = 0;
-
- for (i = 0; i < 64; i++) {
-
- UT_LIST_CHECK(free_list, mem_area_t, pool->free_list[i]);
-
- for (area = UT_LIST_GET_FIRST(pool->free_list[i]);
- area != 0;
- area = UT_LIST_GET_NEXT(free_list, area)) {
-
- ut_a(mem_area_get_free(area));
- ut_a(mem_area_get_size(area) == ut_2_exp(i));
-
- buddy = mem_area_get_buddy(area, ut_2_exp(i), pool);
-
- ut_a(!buddy || !mem_area_get_free(buddy)
- || (ut_2_exp(i) != mem_area_get_size(buddy)));
-
- free += ut_2_exp(i);
- }
- }
-
- ut_a(free + pool->reserved == pool->size);
-
- mem_pool_mutex_exit(pool);
-
- return(TRUE);
-}
-
-/********************************************************************//**
-Prints info of a memory pool. */
-UNIV_INTERN
-void
-mem_pool_print_info(
-/*================*/
- FILE* outfile,/*!< in: output file to write to */
- mem_pool_t* pool) /*!< in: memory pool */
-{
- ulint i;
-
- mem_pool_validate(pool);
-
- fprintf(outfile, "INFO OF A MEMORY POOL\n");
-
- mutex_enter(&(pool->mutex));
-
- for (i = 0; i < 64; i++) {
- if (UT_LIST_GET_LEN(pool->free_list[i]) > 0) {
-
- fprintf(outfile,
- "Free list length %lu for"
- " blocks of size %lu\n",
- (ulong) UT_LIST_GET_LEN(pool->free_list[i]),
- (ulong) ut_2_exp(i));
- }
- }
-
- fprintf(outfile, "Pool size %lu, reserved %lu.\n", (ulong) pool->size,
- (ulong) pool->reserved);
- mutex_exit(&(pool->mutex));
-}
-
-/********************************************************************//**
-Returns the amount of reserved memory.
-@return reserved memory in bytes */
-UNIV_INTERN
-ulint
-mem_pool_get_reserved(
-/*==================*/
- mem_pool_t* pool) /*!< in: memory pool */
-{
- ulint reserved;
-
- mutex_enter(&(pool->mutex));
-
- reserved = pool->reserved;
-
- mutex_exit(&(pool->mutex));
-
- return(reserved);
-}