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Diffstat (limited to 'storage/perfschema/table_prepared_stmt_instances.cc')
| -rw-r--r-- | storage/perfschema/table_prepared_stmt_instances.cc | 301 |
1 files changed, 301 insertions, 0 deletions
diff --git a/storage/perfschema/table_prepared_stmt_instances.cc b/storage/perfschema/table_prepared_stmt_instances.cc new file mode 100644 index 00000000..f064d8f0 --- /dev/null +++ b/storage/perfschema/table_prepared_stmt_instances.cc @@ -0,0 +1,301 @@ +/* Copyright (c) 2014, 2023, Oracle and/or its affiliates. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License, version 2.0, + as published by the Free Software Foundation. + + This program is also distributed with certain software (including + but not limited to OpenSSL) that is licensed under separate terms, + as designated in a particular file or component or in included license + documentation. The authors of MySQL hereby grant you an additional + permission to link the program and your derivative works with the + separately licensed software that they have included with MySQL. + + 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, version 2.0, 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 storage/perfschema/table_prepared_stmt_instances.cc + Table PREPARED_STATEMENTS_INSTANCES (implementation). +*/ + +#include "my_global.h" +#include "my_thread.h" +#include "pfs_instr_class.h" +#include "pfs_column_types.h" +#include "pfs_column_values.h" +#include "pfs_global.h" +#include "pfs_instr.h" +#include "pfs_timer.h" +#include "pfs_visitor.h" +#include "pfs_prepared_stmt.h" +#include "table_prepared_stmt_instances.h" +#include "pfs_buffer_container.h" +#include "field.h" + +THR_LOCK table_prepared_stmt_instances::m_table_lock; + +PFS_engine_table_share_state +table_prepared_stmt_instances::m_share_state = { + false /* m_checked */ +}; + +PFS_engine_table_share +table_prepared_stmt_instances::m_share= +{ + { C_STRING_WITH_LEN("prepared_statements_instances") }, + &pfs_truncatable_acl, + table_prepared_stmt_instances::create, + NULL, /* write_row */ + table_prepared_stmt_instances::delete_all_rows, + table_prepared_stmt_instances::get_row_count, + sizeof(PFS_simple_index), + &m_table_lock, + { C_STRING_WITH_LEN("CREATE TABLE prepared_statements_instances(" + "OBJECT_INSTANCE_BEGIN bigint(20) unsigned NOT NULL comment 'The address in memory of the instrumented prepared statement.'," + "STATEMENT_ID bigint(20) unsigned NOT NULL comment 'The internal statement ID assigned by the server.'," + "STATEMENT_NAME varchar(64) default NULL comment 'For the binary protocol, this column is NULL. For the text protocol, this column is the external statement name assigned by the user.'," + "SQL_TEXT longtext NOT NULL comment 'The prepared statement text, with ? placeholder markers.'," + "OWNER_THREAD_ID bigint(20) unsigned NOT NULL comment 'Event thread id that created the prepared statement.'," + "OWNER_EVENT_ID bigint(20) unsigned NOT NULL comment 'Event id that created the prepared statement.'," + "OWNER_OBJECT_TYPE enum('EVENT','FUNCTION','PROCEDURE','TABLE','TRIGGER') DEFAULT NULL comment 'NULL for a prepared statement created by a client session. Type of the stored program that created the prepared statement.'," + "OWNER_OBJECT_SCHEMA varchar(64) DEFAULT NULL comment 'NULL for a prepared statement created by a client session. Schema of the stored program that created the prepared statement.'," + "OWNER_OBJECT_NAME varchar(64) DEFAULT NULL comment 'NULL for a prepared statement created by a client session. Name of the stored program that created the prepared statement.'," + "TIMER_PREPARE bigint(20) unsigned NOT NULL comment 'The time spent executing the statement preparation itself.'," + "COUNT_REPREPARE bigint(20) unsigned NOT NULL comment 'The number of times the statement was reprepared internally.'," + "COUNT_EXECUTE bigint(20) unsigned NOT NULL comment 'Total times the prepared statement was executed.'," + "SUM_TIMER_EXECUTE bigint(20) unsigned NOT NULL comment 'Total time spent executing all prepared statements.'," + "MIN_TIMER_EXECUTE bigint(20) unsigned NOT NULL comment 'Minimum time spent executing any of the prepared statements.'," + "AVG_TIMER_EXECUTE bigint(20) unsigned NOT NULL comment 'Average time spent executing any of the prepared statements.'," + "MAX_TIMER_EXECUTE bigint(20) unsigned NOT NULL comment 'Maximum time spent executing any of the prepared statements.'," + "SUM_LOCK_TIME bigint(20) unsigned NOT NULL comment 'The total time spent (in picoseconds) waiting for table locks for the prepared statements.'," + "SUM_ERRORS bigint(20) unsigned NOT NULL comment 'The total number of errors that occurend for the prepared statements.'," + "SUM_WARNINGS bigint(20) unsigned NOT NULL comment 'The total number of warnings that occurend for the prepared statements.'," + "SUM_ROWS_AFFECTED bigint(20) unsigned NOT NULL comment 'The total number of affected rows by the prepared statements.'," + "SUM_ROWS_SENT bigint(20) unsigned NOT NULL comment 'The total number of rows returned by the prepared statements.'," + "SUM_ROWS_EXAMINED bigint(20) unsigned NOT NULL comment 'The total number of rows examined by the prepared statements.'," + "SUM_CREATED_TMP_DISK_TABLES bigint(20) unsigned NOT NULL comment 'The total number of on-disk temporary tables created by the prepared statements.'," + "SUM_CREATED_TMP_TABLES bigint(20) unsigned NOT NULL comment 'The total number of in-memory temporary tables created by the prepared statements.'," + "SUM_SELECT_FULL_JOIN bigint(20) unsigned NOT NULL comment 'The total number of full joins executed by the prepared statements.'," + "SUM_SELECT_FULL_RANGE_JOIN bigint(20) unsigned NOT NULL comment 'The total number of range search joins executed by the prepared statements.'," + "SUM_SELECT_RANGE bigint(20) unsigned NOT NULL comment 'The total number of joins that used ranges on the first table executed by the prepared statements.'," + "SUM_SELECT_RANGE_CHECK bigint(20) unsigned NOT NULL comment 'The total number of joins that check for key usage after each row executed by the prepared statements.'," + "SUM_SELECT_SCAN bigint(20) unsigned NOT NULL comment 'The total number of joins that did a full scan of the first table executed by the prepared statements.'," + "SUM_SORT_MERGE_PASSES bigint(20) unsigned NOT NULL comment 'The total number of merge passes that the sort algorithm has had to do for the prepared statements.'," + "SUM_SORT_RANGE bigint(20) unsigned NOT NULL comment 'The total number of sorts that were done using ranges for the prepared statements.'," + "SUM_SORT_ROWS bigint(20) unsigned NOT NULL comment 'The total number of sorted rows that were sorted by the prepared statements.'," + "SUM_SORT_SCAN bigint(20) unsigned NOT NULL comment 'The total number of sorts that were done by scanning the table by the prepared statements.'," + "SUM_NO_INDEX_USED bigint(20) unsigned NOT NULL comment 'The total number of statements that performed a table scan without using an index.'," + "SUM_NO_GOOD_INDEX_USED bigint(20) unsigned NOT NULL comment 'The total number of statements where no good index was found.')")}, + false, /* m_perpetual */ + false, /* m_optional */ + &m_share_state +}; + +PFS_engine_table* +table_prepared_stmt_instances::create(void) +{ + return new table_prepared_stmt_instances(); +} + +int +table_prepared_stmt_instances::delete_all_rows(void) +{ + reset_prepared_stmt_instances(); + return 0; +} + +ha_rows +table_prepared_stmt_instances::get_row_count(void) +{ + return global_prepared_stmt_container.get_row_count(); +} + +table_prepared_stmt_instances::table_prepared_stmt_instances() + : PFS_engine_table(&m_share, &m_pos), + m_row_exists(false), m_pos(0), m_next_pos(0) +{} + +void table_prepared_stmt_instances::reset_position(void) +{ + m_pos= 0; + m_next_pos= 0; +} + +int table_prepared_stmt_instances::rnd_next(void) +{ + PFS_prepared_stmt* pfs; + + m_pos.set_at(&m_next_pos); + PFS_prepared_stmt_iterator it= global_prepared_stmt_container.iterate(m_pos.m_index); + pfs= it.scan_next(& m_pos.m_index); + if (pfs != NULL) + { + make_row(pfs); + m_next_pos.set_after(&m_pos); + return 0; + } + + return HA_ERR_END_OF_FILE; +} + +int +table_prepared_stmt_instances::rnd_pos(const void *pos) +{ + PFS_prepared_stmt* pfs; + + set_position(pos); + + pfs= global_prepared_stmt_container.get(m_pos.m_index); + if (pfs != NULL) + { + make_row(pfs); + return 0; + } + + return HA_ERR_RECORD_DELETED; +} + + +void table_prepared_stmt_instances::make_row(PFS_prepared_stmt* prepared_stmt) +{ + pfs_optimistic_state lock; + m_row_exists= false; + + prepared_stmt->m_lock.begin_optimistic_lock(&lock); + + m_row.m_identity= prepared_stmt->m_identity; + + m_row.m_stmt_id= prepared_stmt->m_stmt_id; + + m_row.m_owner_thread_id= prepared_stmt->m_owner_thread_id; + m_row.m_owner_event_id= prepared_stmt->m_owner_event_id; + + m_row.m_stmt_name_length= prepared_stmt->m_stmt_name_length; + if(m_row.m_stmt_name_length > 0) + memcpy(m_row.m_stmt_name, prepared_stmt->m_stmt_name, + m_row.m_stmt_name_length); + + m_row.m_sql_text_length= prepared_stmt->m_sqltext_length; + if(m_row.m_sql_text_length > 0) + memcpy(m_row.m_sql_text, prepared_stmt->m_sqltext, + m_row.m_sql_text_length); + + m_row.m_owner_object_type= prepared_stmt->m_owner_object_type; + + m_row.m_owner_object_name_length= prepared_stmt->m_owner_object_name_length; + if(m_row.m_owner_object_name_length > 0) + memcpy(m_row.m_owner_object_name, prepared_stmt->m_owner_object_name, + m_row.m_owner_object_name_length); + + m_row.m_owner_object_schema_length= prepared_stmt->m_owner_object_schema_length; + if(m_row.m_owner_object_schema_length > 0) + memcpy(m_row.m_owner_object_schema, prepared_stmt->m_owner_object_schema, + m_row.m_owner_object_schema_length); + + time_normalizer *normalizer= time_normalizer::get(statement_timer); + /* Get prepared statement prepare stats. */ + m_row.m_prepare_stat.set(normalizer, & prepared_stmt->m_prepare_stat); + /* Get prepared statement reprepare stats. */ + m_row.m_reprepare_stat.set(normalizer, & prepared_stmt->m_reprepare_stat); + /* Get prepared statement execute stats. */ + m_row.m_execute_stat.set(normalizer, & prepared_stmt->m_execute_stat); + + if (! prepared_stmt->m_lock.end_optimistic_lock(&lock)) + return; + + m_row_exists= true; +} + +int table_prepared_stmt_instances +::read_row_values(TABLE *table, unsigned char *buf, Field **fields, + bool read_all) +{ + Field *f; + + if (unlikely(! m_row_exists)) + return HA_ERR_RECORD_DELETED; + + /* + Set the null bits. + */ + assert(table->s->null_bytes == 1); + buf[0]= 0; + + for (; (f= *fields) ; fields++) + { + if (read_all || bitmap_is_set(table->read_set, f->field_index)) + { + switch(f->field_index) + { + case 0: /* OBJECT_INSTANCE_BEGIN */ + set_field_ulonglong(f, (intptr)m_row.m_identity); + break; + case 1: /* STATEMENT_ID */ + set_field_ulonglong(f, m_row.m_stmt_id); + break; + case 2: /* STATEMENT_NAME */ + if(m_row.m_stmt_name_length > 0) + set_field_varchar_utf8(f, m_row.m_stmt_name, + m_row.m_stmt_name_length); + else + f->set_null(); + break; + case 3: /* SQL_TEXT */ + if(m_row.m_sql_text_length > 0) + set_field_longtext_utf8(f, m_row.m_sql_text, + m_row.m_sql_text_length); + else + f->set_null(); + break; + case 4: /* OWNER_THREAD_ID */ + set_field_ulonglong(f, m_row.m_owner_thread_id); + break; + case 5: /* OWNER_EVENT_ID */ + if(m_row.m_owner_event_id > 0) + set_field_ulonglong(f, m_row.m_owner_event_id); + else + f->set_null(); + break; + case 6: /* OWNER_OBJECT_TYPE */ + if(m_row.m_owner_object_type != 0) + set_field_enum(f, m_row.m_owner_object_type); + else + f->set_null(); + break; + case 7: /* OWNER_OBJECT_SCHEMA */ + if(m_row.m_owner_object_schema_length > 0) + set_field_varchar_utf8(f, m_row.m_owner_object_schema, + m_row.m_owner_object_schema_length); + else + f->set_null(); + break; + case 8: /* OWNER_OBJECT_NAME */ + if(m_row.m_owner_object_name_length > 0) + set_field_varchar_utf8(f, m_row.m_owner_object_name, + m_row.m_owner_object_name_length); + else + f->set_null(); + break; + case 9: /* TIMER_PREPARE */ + m_row.m_prepare_stat.set_field(1, f); + break; + case 10: /* COUNT_REPREPARE */ + m_row.m_reprepare_stat.set_field(0, f); + break; + default: /* 14, ... COUNT/SUM/MIN/AVG/MAX */ + m_row.m_execute_stat.set_field(f->field_index - 11, f); + break; + } + } + } + + return 0; +} + |