233 lines
7.4 KiB
C++
233 lines
7.4 KiB
C++
/* Copyright (c) 2018, 2021, Alibaba and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL/PolarDB-X Engine hereby grant you an
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additional permission to link the program and your derivative works with the
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separately licensed software that they have included with
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MySQL/PolarDB-X Engine.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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/**
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@file storage/perfschema/table_esms_by_digest_supplement.cc
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Table EVENTS_STATEMENTS_SUMMARY_GLOBAL_BY_DIGEST_SUPPLEMENT (implementation).
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*/
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#include "storage/perfschema/table_esms_by_digest_supplement.h"
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#include <stddef.h>
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#include "my_dbug.h"
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#include "my_thread.h"
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#include "sql/field.h"
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#include "sql/plugin_table.h"
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#include "sql/table.h"
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#include "storage/perfschema/pfs_column_types.h"
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#include "storage/perfschema/pfs_column_values.h"
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#include "storage/perfschema/pfs_digest.h"
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#include "storage/perfschema/pfs_global.h"
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#include "storage/perfschema/pfs_instr.h"
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#include "storage/perfschema/pfs_instr_class.h"
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#include "storage/perfschema/pfs_timer.h"
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#include "storage/perfschema/pfs_visitor.h"
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THR_LOCK table_esms_by_digest_supplement::m_table_lock;
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Plugin_table table_esms_by_digest_supplement::m_table_def(
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/* Schema name */
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"performance_schema",
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/* Name */
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"events_statements_summary_by_digest_supplement",
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/* Definition */
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" SCHEMA_NAME VARCHAR(64),\n"
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" DIGEST VARCHAR(64),\n"
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" DIGEST_TEXT LONGTEXT,\n"
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" ELAPSED_TIME BIGINT unsigned not null,\n"
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" CPU_TIME BIGINT unsigned not null,\n"
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" SERVER_LOCK_TIME BIGINT unsigned not null,\n"
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" TRANSACTION_LOCK_TIME BIGINT unsigned not null,\n"
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" MUTEX_SPINS BIGINT unsigned not null,\n"
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" MUTEX_WAITS BIGINT unsigned not null,\n"
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" RWLOCK_SPIN_WAITS BIGINT unsigned not null,\n"
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" RWLOCK_SPIN_ROUNDS BIGINT unsigned not null,\n"
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" RWLOCK_OS_WAITS BIGINT unsigned not null,\n"
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" DATA_READS BIGINT unsigned not null,\n"
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" DATA_READ_TIME BIGINT unsigned not null,\n"
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" DATA_WRITES BIGINT unsigned not null,\n"
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" DATA_WRITE_TIME BIGINT unsigned not null,\n"
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" REDO_WRITES BIGINT unsigned not null,\n"
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" REDO_WRITE_TIME BIGINT unsigned not null,\n"
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" LOGICAL_READS BIGINT unsigned not null,\n"
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" PHYSICAL_READS BIGINT unsigned not null,\n"
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" PHYSICAL_ASYNC_READS BIGINT unsigned not null,\n"
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" ROWS_READ_DELETE_MARK BIGINT unsigned not null,\n"
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" UNIQUE KEY (SCHEMA_NAME, DIGEST) USING HASH\n",
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/* Options */
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" ENGINE=PERFORMANCE_SCHEMA",
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/* Tablespace */
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nullptr);
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PFS_engine_table_share table_esms_by_digest_supplement::m_share = {
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&pfs_truncatable_acl,
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table_esms_by_digest_supplement::create,
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NULL, /* write_row */
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table_esms_by_digest_supplement::delete_all_rows,
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table_esms_by_digest_supplement::get_row_count,
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sizeof(PFS_simple_index),
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&m_table_lock,
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&m_table_def,
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false, /* perpetual */
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PFS_engine_table_proxy(),
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{0},
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false /* m_in_purgatory */
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};
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PFS_engine_table *table_esms_by_digest_supplement::create(PFS_engine_table_share *) {
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return new table_esms_by_digest_supplement();
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}
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int table_esms_by_digest_supplement::delete_all_rows(void) {
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reset_esms_by_digest();
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return 0;
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}
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ha_rows table_esms_by_digest_supplement::get_row_count(void) {
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return digest_max;
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}
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table_esms_by_digest_supplement::table_esms_by_digest_supplement()
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: PFS_engine_table(&m_share, &m_pos), m_pos(0), m_next_pos(0) {
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m_normalizer = time_normalizer::get_statement();
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}
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void table_esms_by_digest_supplement::reset_position(void) {
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m_pos = 0;
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m_next_pos = 0;
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}
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int table_esms_by_digest_supplement::rnd_next(void) {
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PFS_statements_digest_stat *digest_stat;
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if (statements_digest_stat_array == NULL) {
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return HA_ERR_END_OF_FILE;
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}
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for (m_pos.set_at(&m_next_pos); m_pos.m_index < digest_max; m_pos.next()) {
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digest_stat = &statements_digest_stat_array[m_pos.m_index];
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if (digest_stat->m_lock.is_populated()) {
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if (digest_stat->m_first_seen != 0) {
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m_next_pos.set_after(&m_pos);
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return make_row(digest_stat);
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}
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}
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}
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return HA_ERR_END_OF_FILE;
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}
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int table_esms_by_digest_supplement::rnd_pos(const void *pos) {
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PFS_statements_digest_stat *digest_stat;
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if (statements_digest_stat_array == NULL) {
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return HA_ERR_END_OF_FILE;
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}
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set_position(pos);
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digest_stat = &statements_digest_stat_array[m_pos.m_index];
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if (digest_stat->m_lock.is_populated()) {
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if (digest_stat->m_first_seen != 0) {
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return make_row(digest_stat);
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}
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}
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return HA_ERR_RECORD_DELETED;
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}
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int table_esms_by_digest_supplement::index_init(uint idx MY_ATTRIBUTE((unused)),
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bool) {
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PFS_index_esms_by_digest_supplement *result = NULL;
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DBUG_ASSERT(idx == 0);
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result = PFS_NEW(PFS_index_esms_by_digest_supplement);
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m_opened_index = result;
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m_index = result;
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return 0;
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}
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int table_esms_by_digest_supplement::index_next(void) {
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PFS_statements_digest_stat *digest_stat;
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if (statements_digest_stat_array == NULL) {
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return HA_ERR_END_OF_FILE;
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}
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for (m_pos.set_at(&m_next_pos); m_pos.m_index < digest_max; m_pos.next()) {
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digest_stat = &statements_digest_stat_array[m_pos.m_index];
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if (digest_stat->m_first_seen != 0) {
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if (m_opened_index->match(digest_stat)) {
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if (!make_row(digest_stat)) {
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m_next_pos.set_after(&m_pos);
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return 0;
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}
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}
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}
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}
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return HA_ERR_END_OF_FILE;
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}
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/**
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Generate the record element from digest stat.
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*/
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int table_esms_by_digest_supplement::make_row(
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PFS_statements_digest_stat *digest_stat) {
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m_row.m_digest.make_row(digest_stat);
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m_row.m_stat.copy(&(digest_stat->m_ppi_stat));
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return 0;
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}
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int table_esms_by_digest_supplement::read_row_values(TABLE *table,
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unsigned char *buf,
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Field **fields,
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bool read_all) {
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Field *f;
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/*
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Set the null bits. It indicates how many fields could be null
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in the table.
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*/
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DBUG_ASSERT(table->s->null_bytes == 1);
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buf[0] = 0;
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for (; (f = *fields); fields++) {
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if (read_all || bitmap_is_set(table->read_set, f->field_index)) {
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switch (f->field_index) {
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case 0: /* SCHEMA_NAME */
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case 1: /* DIGEST */
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case 2: /* DIGEST_TEXT */
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m_row.m_digest.set_field(f->field_index, f);
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break;
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default: /* statement statistics */
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set_field_ulonglong(
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f, get_stat_value(&(m_row.m_stat), f->field_index - 3));
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break;
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}
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}
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}
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return 0;
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}
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