417 lines
13 KiB
C++
417 lines
13 KiB
C++
/* Copyright (c) 2014, 2019, Oracle 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 hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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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_prepared_stmt_instances.cc
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Table PREPARED_STATEMENTS_INSTANCES (implementation).
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*/
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#include "storage/perfschema/table_prepared_stmt_instances.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_buffer_container.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_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_prepared_stmt.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_prepared_stmt_instances::m_table_lock;
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Plugin_table table_prepared_stmt_instances::m_table_def(
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/* Schema name */
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"performance_schema",
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/* Name */
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"prepared_statements_instances",
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/* Definition */
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" OBJECT_INSTANCE_BEGIN bigint(20) unsigned NOT NULL,\n"
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" STATEMENT_ID BIGINT(20) unsigned NOT NULL,\n"
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" STATEMENT_NAME varchar(64) default NULL,\n"
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" SQL_TEXT longtext NOT NULL,\n"
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" OWNER_THREAD_ID bigint(20) unsigned NOT NULL,\n"
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" OWNER_EVENT_ID bigint(20) unsigned NOT NULL,\n"
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" OWNER_OBJECT_TYPE enum('EVENT','FUNCTION','PROCEDURE','TABLE',\n"
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" 'TRIGGER') DEFAULT NULL,\n"
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" OWNER_OBJECT_SCHEMA varchar(64) DEFAULT NULL,\n"
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" OWNER_OBJECT_NAME varchar(64) DEFAULT NULL,\n"
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" TIMER_PREPARE bigint(20) unsigned NOT NULL,\n"
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" COUNT_REPREPARE bigint(20) unsigned NOT NULL,\n"
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" COUNT_EXECUTE bigint(20) unsigned NOT NULL,\n"
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" SUM_TIMER_EXECUTE bigint(20) unsigned NOT NULL,\n"
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" MIN_TIMER_EXECUTE bigint(20) unsigned NOT NULL,\n"
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" AVG_TIMER_EXECUTE bigint(20) unsigned NOT NULL,\n"
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" MAX_TIMER_EXECUTE bigint(20) unsigned NOT NULL,\n"
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" SUM_LOCK_TIME bigint(20) unsigned NOT NULL,\n"
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" SUM_ERRORS bigint(20) unsigned NOT NULL,\n"
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" SUM_WARNINGS bigint(20) unsigned NOT NULL,\n"
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" SUM_ROWS_AFFECTED bigint(20) unsigned NOT NULL,\n"
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" SUM_ROWS_SENT bigint(20) unsigned NOT NULL,\n"
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" SUM_ROWS_EXAMINED bigint(20) unsigned NOT NULL,\n"
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" SUM_CREATED_TMP_DISK_TABLES bigint(20) unsigned NOT NULL,\n"
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" SUM_CREATED_TMP_TABLES bigint(20) unsigned NOT NULL,\n"
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" SUM_SELECT_FULL_JOIN bigint(20) unsigned NOT NULL,\n"
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" SUM_SELECT_FULL_RANGE_JOIN bigint(20) unsigned NOT NULL,\n"
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" SUM_SELECT_RANGE bigint(20) unsigned NOT NULL,\n"
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" SUM_SELECT_RANGE_CHECK bigint(20) unsigned NOT NULL,\n"
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" SUM_SELECT_SCAN bigint(20) unsigned NOT NULL,\n"
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" SUM_SORT_MERGE_PASSES bigint(20) unsigned NOT NULL,\n"
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" SUM_SORT_RANGE bigint(20) unsigned NOT NULL,\n"
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" SUM_SORT_ROWS bigint(20) unsigned NOT NULL,\n"
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" SUM_SORT_SCAN bigint(20) unsigned NOT NULL,\n"
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" SUM_NO_INDEX_USED bigint(20) unsigned NOT NULL,\n"
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" SUM_NO_GOOD_INDEX_USED bigint(20) unsigned NOT NULL,\n"
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" PRIMARY KEY (OBJECT_INSTANCE_BEGIN) USING HASH,\n"
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" UNIQUE KEY (OWNER_THREAD_ID, OWNER_EVENT_ID) USING HASH,\n"
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" KEY (STATEMENT_ID) USING HASH,\n"
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" KEY (STATEMENT_NAME) USING HASH,\n"
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" KEY (OWNER_OBJECT_TYPE, OWNER_OBJECT_SCHEMA,\n"
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" OWNER_OBJECT_NAME) 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_prepared_stmt_instances::m_share = {
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&pfs_truncatable_acl,
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table_prepared_stmt_instances::create,
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NULL, /* write_row */
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table_prepared_stmt_instances::delete_all_rows,
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table_prepared_stmt_instances::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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bool PFS_index_prepared_stmt_instances_by_instance::match(
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const PFS_prepared_stmt *pfs) {
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if (m_fields >= 1) {
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if (!m_key.match(pfs)) {
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return false;
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}
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}
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return true;
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}
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bool PFS_index_prepared_stmt_instances_by_owner_thread::match(
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const PFS_prepared_stmt *pfs) {
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if (m_fields >= 1) {
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if (!m_key_1.match_owner(pfs)) {
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return false;
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}
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}
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if (m_fields >= 2) {
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if (!m_key_2.match_owner(pfs)) {
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return false;
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}
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}
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return true;
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}
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bool PFS_index_prepared_stmt_instances_by_statement_id::match(
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const PFS_prepared_stmt *pfs) {
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if (m_fields >= 1) {
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if (!m_key.match(pfs)) {
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return false;
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}
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}
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return true;
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}
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bool PFS_index_prepared_stmt_instances_by_statement_name::match(
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const PFS_prepared_stmt *pfs) {
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if (m_fields >= 1) {
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if (!m_key.match(pfs)) {
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return false;
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}
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}
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return true;
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}
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bool PFS_index_prepared_stmt_instances_by_owner_object::match(
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const PFS_prepared_stmt *pfs) {
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if (m_fields >= 1) {
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if (!m_key_1.match(pfs)) {
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return false;
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}
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}
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if (m_fields >= 2) {
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if (!m_key_2.match(pfs)) {
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return false;
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}
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}
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if (m_fields >= 3) {
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if (!m_key_3.match(pfs)) {
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return false;
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}
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}
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return true;
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}
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PFS_engine_table *table_prepared_stmt_instances::create(
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PFS_engine_table_share *) {
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return new table_prepared_stmt_instances();
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}
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int table_prepared_stmt_instances::delete_all_rows(void) {
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reset_prepared_stmt_instances();
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return 0;
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}
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ha_rows table_prepared_stmt_instances::get_row_count(void) {
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return global_prepared_stmt_container.get_row_count();
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}
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table_prepared_stmt_instances::table_prepared_stmt_instances()
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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_prepared_stmt_instances::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_prepared_stmt_instances::rnd_next(void) {
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PFS_prepared_stmt *pfs;
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m_pos.set_at(&m_next_pos);
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PFS_prepared_stmt_iterator it =
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global_prepared_stmt_container.iterate(m_pos.m_index);
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pfs = it.scan_next(&m_pos.m_index);
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if (pfs != NULL) {
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m_next_pos.set_after(&m_pos);
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return make_row(pfs);
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}
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return HA_ERR_END_OF_FILE;
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}
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int table_prepared_stmt_instances::rnd_pos(const void *pos) {
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PFS_prepared_stmt *pfs;
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set_position(pos);
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pfs = global_prepared_stmt_container.get(m_pos.m_index);
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if (pfs != NULL) {
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return make_row(pfs);
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}
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return HA_ERR_RECORD_DELETED;
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}
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int table_prepared_stmt_instances::index_init(uint idx, bool) {
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PFS_index_prepared_stmt_instances *result = NULL;
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switch (idx) {
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case 0:
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result = PFS_NEW(PFS_index_prepared_stmt_instances_by_instance);
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break;
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case 1:
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result = PFS_NEW(PFS_index_prepared_stmt_instances_by_owner_thread);
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break;
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case 2:
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result = PFS_NEW(PFS_index_prepared_stmt_instances_by_statement_id);
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break;
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case 3:
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result = PFS_NEW(PFS_index_prepared_stmt_instances_by_statement_name);
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break;
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case 4:
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result = PFS_NEW(PFS_index_prepared_stmt_instances_by_owner_object);
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break;
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default:
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DBUG_ASSERT(false);
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break;
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}
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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_prepared_stmt_instances::index_next(void) {
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PFS_prepared_stmt *pfs;
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bool has_more = true;
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for (m_pos.set_at(&m_next_pos); has_more; m_pos.next()) {
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pfs = global_prepared_stmt_container.get(m_pos.m_index, &has_more);
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if (pfs != NULL) {
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if (m_opened_index->match(pfs)) {
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if (!make_row(pfs)) {
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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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int table_prepared_stmt_instances::make_row(PFS_prepared_stmt *prepared_stmt) {
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pfs_optimistic_state lock;
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prepared_stmt->m_lock.begin_optimistic_lock(&lock);
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m_row.m_identity = prepared_stmt->m_identity;
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m_row.m_stmt_id = prepared_stmt->m_stmt_id;
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m_row.m_owner_thread_id = prepared_stmt->m_owner_thread_id;
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m_row.m_owner_event_id = prepared_stmt->m_owner_event_id;
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m_row.m_stmt_name_length = prepared_stmt->m_stmt_name_length;
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if (m_row.m_stmt_name_length > 0)
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memcpy(m_row.m_stmt_name, prepared_stmt->m_stmt_name,
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m_row.m_stmt_name_length);
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m_row.m_sql_text_length = prepared_stmt->m_sqltext_length;
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if (m_row.m_sql_text_length > 0) {
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memcpy(m_row.m_sql_text, prepared_stmt->m_sqltext, m_row.m_sql_text_length);
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}
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m_row.m_owner_object_type = prepared_stmt->m_owner_object_type;
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m_row.m_owner_object_name_length = prepared_stmt->m_owner_object_name_length;
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if (m_row.m_owner_object_name_length > 0)
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memcpy(m_row.m_owner_object_name, prepared_stmt->m_owner_object_name,
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m_row.m_owner_object_name_length);
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m_row.m_owner_object_schema_length =
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prepared_stmt->m_owner_object_schema_length;
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if (m_row.m_owner_object_schema_length > 0)
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memcpy(m_row.m_owner_object_schema, prepared_stmt->m_owner_object_schema,
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m_row.m_owner_object_schema_length);
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/* Get prepared statement prepare stats. */
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m_row.m_prepare_stat.set(m_normalizer, &prepared_stmt->m_prepare_stat);
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/* Get prepared statement re-prepare stats. */
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m_row.m_reprepare_stat.set(m_normalizer, &prepared_stmt->m_reprepare_stat);
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/* Get prepared statement execute stats. */
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m_row.m_execute_stat.set(m_normalizer, &prepared_stmt->m_execute_stat);
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if (!prepared_stmt->m_lock.end_optimistic_lock(&lock)) {
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return HA_ERR_RECORD_DELETED;
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}
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return 0;
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}
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int table_prepared_stmt_instances::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.
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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: /* OBJECT_INSTANCE_BEGIN */
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set_field_ulonglong(f, (intptr)m_row.m_identity);
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break;
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case 1: /* STATEMENT_ID */
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set_field_ulonglong(f, m_row.m_stmt_id);
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break;
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case 2: /* STATEMENT_NAME */
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if (m_row.m_stmt_name_length > 0)
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set_field_varchar_utf8(f, m_row.m_stmt_name,
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m_row.m_stmt_name_length);
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else {
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f->set_null();
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}
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break;
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case 3: /* SQL_TEXT */
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if (m_row.m_sql_text_length > 0) {
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set_field_blob(f, m_row.m_sql_text, m_row.m_sql_text_length);
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} else {
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f->set_null();
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}
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break;
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case 4: /* OWNER_THREAD_ID */
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set_field_ulonglong(f, m_row.m_owner_thread_id);
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break;
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case 5: /* OWNER_EVENT_ID */
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if (m_row.m_owner_event_id > 0) {
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set_field_ulonglong(f, m_row.m_owner_event_id);
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} else {
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f->set_null();
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}
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break;
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case 6: /* OWNER_OBJECT_TYPE */
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if (m_row.m_owner_object_type != 0) {
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set_field_enum(f, m_row.m_owner_object_type);
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} else {
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f->set_null();
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}
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break;
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case 7: /* OWNER_OBJECT_SCHEMA */
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if (m_row.m_owner_object_schema_length > 0)
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set_field_varchar_utf8(f, m_row.m_owner_object_schema,
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m_row.m_owner_object_schema_length);
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else {
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f->set_null();
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}
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break;
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case 8: /* OWNER_OBJECT_NAME */
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if (m_row.m_owner_object_name_length > 0)
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set_field_varchar_utf8(f, m_row.m_owner_object_name,
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m_row.m_owner_object_name_length);
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else {
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f->set_null();
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}
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break;
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case 9: /* TIMER_PREPARE */
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m_row.m_prepare_stat.set_field(1, f);
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break;
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case 10: /* COUNT_REPREPARE */
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m_row.m_reprepare_stat.set_field(0, f);
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break;
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default: /* 14, ... COUNT/SUM/MIN/AVG/MAX */
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m_row.m_execute_stat.set_field(f->field_index - 11, f);
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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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