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+/* Copyright (c) 2008, 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,
+ 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
+
+/**
+ @file storage/perfschema/pfs_engine_table.cc
+ Performance schema tables (implementation).
+*/
+
+#include "my_global.h"
+#include "my_pthread.h"
+#include "hostname.h" /* For Host_entry */
+#include "pfs_engine_table.h"
+
+#include "table_events_waits.h"
+#include "table_setup_actors.h"
+#include "table_setup_consumers.h"
+#include "table_setup_instruments.h"
+#include "table_setup_objects.h"
+#include "table_setup_timers.h"
+#include "table_performance_timers.h"
+#include "table_events_waits_summary.h"
+#include "table_ews_by_thread_by_event_name.h"
+#include "table_ews_global_by_event_name.h"
+#include "table_host_cache.h"
+#include "table_os_global_by_type.h"
+#include "table_sync_instances.h"
+#include "table_file_instances.h"
+#include "table_file_summary_by_instance.h"
+#include "table_file_summary_by_event_name.h"
+#include "table_threads.h"
+
+#include "table_ews_by_host_by_event_name.h"
+#include "table_ews_by_user_by_event_name.h"
+#include "table_ews_by_account_by_event_name.h"
+#include "table_tiws_by_index_usage.h"
+#include "table_tiws_by_table.h"
+#include "table_tlws_by_table.h"
+
+#include "table_events_stages.h"
+#include "table_esgs_by_thread_by_event_name.h"
+#include "table_esgs_by_host_by_event_name.h"
+#include "table_esgs_by_user_by_event_name.h"
+#include "table_esgs_by_account_by_event_name.h"
+#include "table_esgs_global_by_event_name.h"
+
+#include "table_events_statements.h"
+#include "table_esms_by_thread_by_event_name.h"
+#include "table_esms_by_host_by_event_name.h"
+#include "table_esms_by_user_by_event_name.h"
+#include "table_esms_by_account_by_event_name.h"
+#include "table_esms_global_by_event_name.h"
+#include "table_esms_by_digest.h"
+
+#include "table_users.h"
+#include "table_accounts.h"
+#include "table_hosts.h"
+
+#include "table_socket_instances.h"
+#include "table_socket_summary_by_instance.h"
+#include "table_socket_summary_by_event_name.h"
+#include "table_session_connect_attrs.h"
+#include "table_session_account_connect_attrs.h"
+
+/* For show status */
+#include "pfs_column_values.h"
+#include "pfs_instr_class.h"
+#include "pfs_instr.h"
+#include "pfs_setup_actor.h"
+#include "pfs_setup_object.h"
+#include "pfs_global.h"
+#include "pfs_digest.h"
+
+#include "sql_base.h" // close_thread_tables
+#include "lock.h" // MYSQL_LOCK_IGNORE_TIMEOUT
+
+/**
+ @addtogroup Performance_schema_engine
+ @{
+*/
+
+static PFS_engine_table_share *all_shares[]=
+{
+ &table_cond_instances::m_share,
+ &table_events_waits_current::m_share,
+ &table_events_waits_history::m_share,
+ &table_events_waits_history_long::m_share,
+ &table_ews_by_host_by_event_name::m_share,
+ &table_events_waits_summary_by_instance::m_share,
+ &table_ews_by_thread_by_event_name::m_share,
+ &table_ews_by_user_by_event_name::m_share,
+ &table_ews_by_account_by_event_name::m_share,
+ &table_ews_global_by_event_name::m_share,
+ &table_file_instances::m_share,
+ &table_file_summary_by_event_name::m_share,
+ &table_file_summary_by_instance::m_share,
+ &table_host_cache::m_share,
+ &table_mutex_instances::m_share,
+ &table_os_global_by_type::m_share,
+ &table_performance_timers::m_share,
+ &table_rwlock_instances::m_share,
+ &table_setup_actors::m_share,
+ &table_setup_consumers::m_share,
+ &table_setup_instruments::m_share,
+ &table_setup_objects::m_share,
+ &table_setup_timers::m_share,
+ &table_tiws_by_index_usage::m_share,
+ &table_tiws_by_table::m_share,
+ &table_tlws_by_table::m_share,
+ &table_threads::m_share,
+
+ &table_events_stages_current::m_share,
+ &table_events_stages_history::m_share,
+ &table_events_stages_history_long::m_share,
+ &table_esgs_by_thread_by_event_name::m_share,
+ &table_esgs_by_account_by_event_name::m_share,
+ &table_esgs_by_user_by_event_name::m_share,
+ &table_esgs_by_host_by_event_name::m_share,
+ &table_esgs_global_by_event_name::m_share,
+
+ &table_events_statements_current::m_share,
+ &table_events_statements_history::m_share,
+ &table_events_statements_history_long::m_share,
+ &table_esms_by_thread_by_event_name::m_share,
+ &table_esms_by_account_by_event_name::m_share,
+ &table_esms_by_user_by_event_name::m_share,
+ &table_esms_by_host_by_event_name::m_share,
+ &table_esms_global_by_event_name::m_share,
+ &table_esms_by_digest::m_share,
+
+ &table_users::m_share,
+ &table_accounts::m_share,
+ &table_hosts::m_share,
+
+ &table_socket_instances::m_share,
+ &table_socket_summary_by_instance::m_share,
+ &table_socket_summary_by_event_name::m_share,
+ &table_session_connect_attrs::m_share,
+ &table_session_account_connect_attrs::m_share,
+ NULL
+};
+
+/**
+ Check all the tables structure.
+ @param thd current thread
+*/
+void PFS_engine_table_share::check_all_tables(THD *thd)
+{
+ PFS_engine_table_share **current;
+
+ DBUG_EXECUTE_IF("tampered_perfschema_table1",
+ {
+ /* Hack SETUP_INSTRUMENT, incompatible change. */
+ all_shares[20]->m_field_def->count++;
+ });
+
+ for (current= &all_shares[0]; (*current) != NULL; current++)
+ (*current)->check_one_table(thd);
+}
+
+/** Error reporting for schema integrity checks. */
+class PFS_check_intact : public Table_check_intact
+{
+protected:
+ virtual void report_error(uint code, const char *fmt, ...);
+
+public:
+ PFS_check_intact()
+ {}
+
+ ~PFS_check_intact()
+ {}
+};
+
+void PFS_check_intact::report_error(uint code, const char *fmt, ...)
+{
+ va_list args;
+ char buff[MYSQL_ERRMSG_SIZE];
+
+ va_start(args, fmt);
+ my_vsnprintf(buff, sizeof(buff), fmt, args);
+ va_end(args);
+
+ /*
+ This is an install/upgrade issue:
+ - do not report it in the user connection, there is none in main(),
+ - report it in the server error log.
+ */
+ sql_print_error("%s", buff);
+}
+
+/**
+ Check integrity of the actual table schema.
+ The actual table schema (.frm) is compared to the expected schema.
+ @param thd current thread
+*/
+void PFS_engine_table_share::check_one_table(THD *thd)
+{
+ TABLE_LIST tables;
+
+ tables.init_one_table(PERFORMANCE_SCHEMA_str.str,
+ PERFORMANCE_SCHEMA_str.length,
+ m_name.str, m_name.length,
+ m_name.str, TL_READ);
+
+ /* Work around until Bug#32115 is backported. */
+ LEX dummy_lex;
+ LEX *old_lex= thd->lex;
+ thd->lex= &dummy_lex;
+ lex_start(thd);
+
+ if (! open_and_lock_tables(thd, &tables, FALSE, MYSQL_LOCK_IGNORE_TIMEOUT))
+ {
+ PFS_check_intact checker;
+
+ if (!checker.check(tables.table, m_field_def))
+ m_checked= true;
+ close_thread_tables(thd);
+ }
+ else
+ sql_print_error(ER(ER_WRONG_NATIVE_TABLE_STRUCTURE),
+ PERFORMANCE_SCHEMA_str.str, m_name.str);
+
+ lex_end(&dummy_lex);
+ thd->lex= old_lex;
+}
+
+/** Initialize all the table share locks. */
+void PFS_engine_table_share::init_all_locks(void)
+{
+ PFS_engine_table_share **current;
+
+ for (current= &all_shares[0]; (*current) != NULL; current++)
+ thr_lock_init((*current)->m_thr_lock_ptr);
+}
+
+/** Delete all the table share locks. */
+void PFS_engine_table_share::delete_all_locks(void)
+{
+ PFS_engine_table_share **current;
+
+ for (current= &all_shares[0]; (*current) != NULL; current++)
+ thr_lock_delete((*current)->m_thr_lock_ptr);
+}
+
+ha_rows PFS_engine_table_share::get_row_count(void) const
+{
+ /* If available, count the exact number or records */
+ if (m_get_row_count)
+ return m_get_row_count();
+ /* Otherwise, return an estimate */
+ return m_records;
+}
+
+int PFS_engine_table_share::write_row(TABLE *table, unsigned char *buf,
+ Field **fields) const
+{
+ my_bitmap_map *org_bitmap;
+
+ /*
+ Make sure the table structure is as expected before mapping
+ hard wired columns in m_write_row.
+ */
+ if (! m_checked)
+ {
+ return HA_ERR_TABLE_NEEDS_UPGRADE;
+ }
+
+ if (m_write_row == NULL)
+ {
+ return HA_ERR_WRONG_COMMAND;
+ }
+
+ /* We internally read from Fields to support the write interface */
+ org_bitmap= dbug_tmp_use_all_columns(table, table->read_set);
+ int result= m_write_row(table, buf, fields);
+ dbug_tmp_restore_column_map(table->read_set, org_bitmap);
+
+ return result;
+}
+
+static int compare_table_names(const char *name1, const char *name2)
+{
+ /*
+ The performance schema is implemented as a storage engine, in memory.
+ The current storage engine interface exposed by the server,
+ and in particular handlerton::discover, uses 'FRM' files to describe a
+ table structure, which are later stored on disk, by the server,
+ in ha_create_table_from_engine().
+ Because the table metadata is stored on disk, the table naming rules
+ used by the performance schema then have to comply with the constraints
+ imposed by the disk storage, and in particular with lower_case_table_names.
+ Once the server is changed to be able to discover a table in a storage engine
+ and then open the table without storing a FRM file on disk, this constraint
+ on the performance schema will be lifted, and the naming logic can be relaxed
+ to be simply my_strcasecmp(system_charset_info, name1, name2).
+ */
+ if (lower_case_table_names)
+ return strcasecmp(name1, name2);
+ return strcmp(name1, name2);
+}
+
+/**
+ Find a table share by name.
+ @param name The table name
+ @return table share
+*/
+const PFS_engine_table_share*
+PFS_engine_table::find_engine_table_share(const char *name)
+{
+ DBUG_ENTER("PFS_engine_table::find_table_share");
+
+ PFS_engine_table_share **current;
+
+ for (current= &all_shares[0]; (*current) != NULL; current++)
+ {
+ if (compare_table_names(name, (*current)->m_name.str) == 0)
+ DBUG_RETURN(*current);
+ }
+
+ DBUG_RETURN(NULL);
+}
+
+/**
+ Read a table row.
+ @param table Table handle
+ @param buf Row buffer
+ @param fields Table fields
+ @return 0 on success
+*/
+int PFS_engine_table::read_row(TABLE *table,
+ unsigned char *buf,
+ Field **fields)
+{
+ my_bitmap_map *org_bitmap;
+ Field *f;
+ Field **fields_reset;
+
+ /*
+ Make sure the table structure is as expected before mapping
+ hard wired columns in read_row_values.
+ */
+ if (! m_share_ptr->m_checked)
+ {
+ return HA_ERR_TABLE_NEEDS_UPGRADE;
+ }
+
+ /* We must read all columns in case a table is opened for update */
+ bool read_all= !bitmap_is_clear_all(table->write_set);
+
+ /* We internally write to Fields to support the read interface */
+ org_bitmap= dbug_tmp_use_all_columns(table, table->write_set);
+
+ /*
+ Some callers of the storage engine interface do not honor the
+ f->is_null() flag, and will attempt to read the data itself.
+ A known offender is mysql_checksum_table().
+ For robustness, reset every field.
+ */
+ for (fields_reset= fields; (f= *fields_reset) ; fields_reset++)
+ f->reset();
+
+ int result= read_row_values(table, buf, fields, read_all);
+ dbug_tmp_restore_column_map(table->write_set, org_bitmap);
+
+ return result;
+}
+
+/**
+ Update a table row.
+ @param table Table handle
+ @param old_buf old row buffer
+ @param new_buf new row buffer
+ @param fields Table fields
+ @return 0 on success
+*/
+int PFS_engine_table::update_row(TABLE *table,
+ const unsigned char *old_buf,
+ unsigned char *new_buf,
+ Field **fields)
+{
+ my_bitmap_map *org_bitmap;
+
+ /*
+ Make sure the table structure is as expected before mapping
+ hard wired columns in update_row_values.
+ */
+ if (! m_share_ptr->m_checked)
+ {
+ return HA_ERR_TABLE_NEEDS_UPGRADE;
+ }
+
+ /* We internally read from Fields to support the write interface */
+ org_bitmap= dbug_tmp_use_all_columns(table, table->read_set);
+ int result= update_row_values(table, old_buf, new_buf, fields);
+ dbug_tmp_restore_column_map(table->read_set, org_bitmap);
+
+ return result;
+}
+
+int PFS_engine_table::delete_row(TABLE *table,
+ const unsigned char *buf,
+ Field **fields)
+{
+ my_bitmap_map *org_bitmap;
+
+ /*
+ Make sure the table structure is as expected before mapping
+ hard wired columns in delete_row_values.
+ */
+ if (! m_share_ptr->m_checked)
+ {
+ return HA_ERR_TABLE_NEEDS_UPGRADE;
+ }
+
+ /* We internally read from Fields to support the delete interface */
+ org_bitmap= dbug_tmp_use_all_columns(table, table->read_set);
+ int result= delete_row_values(table, buf, fields);
+ dbug_tmp_restore_column_map(table->read_set, org_bitmap);
+
+ return result;
+}
+
+int PFS_engine_table::delete_row_values(TABLE *,
+ const unsigned char *,
+ Field **)
+{
+ return HA_ERR_WRONG_COMMAND;
+}
+
+/**
+ Get the position of the current row.
+ @param [out] ref position
+*/
+void PFS_engine_table::get_position(void *ref)
+{
+ memcpy(ref, m_pos_ptr, m_share_ptr->m_ref_length);
+}
+
+/**
+ Set the table cursor at a given position.
+ @param [in] ref position
+*/
+void PFS_engine_table::set_position(const void *ref)
+{
+ memcpy(m_pos_ptr, ref, m_share_ptr->m_ref_length);
+}
+
+/**
+ Get the timer normalizer and class type for the current row.
+ @param [in] instr_class class
+*/
+void PFS_engine_table::get_normalizer(PFS_instr_class *instr_class)
+{
+ if (instr_class->m_type != m_class_type)
+ {
+ m_normalizer= time_normalizer::get(*instr_class->m_timer);
+ m_class_type= instr_class->m_type;
+ }
+}
+
+void PFS_engine_table::set_field_ulong(Field *f, ulong value)
+{
+ DBUG_ASSERT(f->real_type() == MYSQL_TYPE_LONG);
+ Field_long *f2= (Field_long*) f;
+ f2->store(value, true);
+}
+
+void PFS_engine_table::set_field_ulonglong(Field *f, ulonglong value)
+{
+ DBUG_ASSERT(f->real_type() == MYSQL_TYPE_LONGLONG);
+ Field_longlong *f2= (Field_longlong*) f;
+ f2->store(value, true);
+}
+
+void PFS_engine_table::set_field_char_utf8(Field *f, const char* str,
+ uint len)
+{
+ DBUG_ASSERT(f->real_type() == MYSQL_TYPE_STRING);
+ Field_string *f2= (Field_string*) f;
+ f2->store(str, len, &my_charset_utf8_bin);
+}
+
+void PFS_engine_table::set_field_varchar_utf8(Field *f, const char* str,
+ uint len)
+{
+ DBUG_ASSERT(f->real_type() == MYSQL_TYPE_VARCHAR);
+ Field_varstring *f2= (Field_varstring*) f;
+ f2->store(str, len, &my_charset_utf8_bin);
+}
+
+void PFS_engine_table::set_field_longtext_utf8(Field *f, const char* str,
+ uint len)
+{
+ DBUG_ASSERT(f->real_type() == MYSQL_TYPE_BLOB);
+ Field_blob *f2= (Field_blob*) f;
+ f2->store(str, len, &my_charset_utf8_bin);
+}
+
+void PFS_engine_table::set_field_enum(Field *f, ulonglong value)
+{
+ DBUG_ASSERT(f->real_type() == MYSQL_TYPE_ENUM);
+ Field_enum *f2= (Field_enum*) f;
+ f2->store_type(value);
+}
+
+void PFS_engine_table::set_field_timestamp(Field *f, ulonglong value)
+{
+ struct timeval tm;
+ tm.tv_sec= (long)(value / 1000000);
+ tm.tv_usec= (long)(value % 1000000);
+ DBUG_ASSERT(f->real_type() == MYSQL_TYPE_TIMESTAMP2);
+ Field_timestampf *f2= (Field_timestampf*) f;
+ f2->store_timestamp(& tm);
+}
+
+ulonglong PFS_engine_table::get_field_enum(Field *f)
+{
+ DBUG_ASSERT(f->real_type() == MYSQL_TYPE_ENUM);
+ Field_enum *f2= (Field_enum*) f;
+ return f2->val_int();
+}
+
+String*
+PFS_engine_table::get_field_char_utf8(Field *f, String *val)
+{
+ DBUG_ASSERT(f->real_type() == MYSQL_TYPE_STRING);
+ Field_string *f2= (Field_string*) f;
+ val= f2->val_str(NULL, val);
+ return val;
+}
+
+String*
+PFS_engine_table::get_field_varchar_utf8(Field *f, String *val)
+{
+ DBUG_ASSERT(f->real_type() == MYSQL_TYPE_VARCHAR);
+ Field_varstring *f2= (Field_varstring*) f;
+ val= f2->val_str(NULL, val);
+ return val;
+}
+
+int PFS_engine_table::update_row_values(TABLE *,
+ const unsigned char *,
+ unsigned char *,
+ Field **)
+{
+ return HA_ERR_WRONG_COMMAND;
+}
+
+/** Implementation of internal ACL checks, for the performance schema. */
+class PFS_internal_schema_access : public ACL_internal_schema_access
+{
+public:
+ PFS_internal_schema_access()
+ {}
+
+ ~PFS_internal_schema_access()
+ {}
+
+ ACL_internal_access_result check(ulong want_access,
+ ulong *save_priv) const;
+
+ const ACL_internal_table_access *lookup(const char *name) const;
+};
+
+ACL_internal_access_result
+PFS_internal_schema_access::check(ulong want_access,
+ ulong *save_priv) const
+{
+ const ulong always_forbidden= /* CREATE_ACL | */ REFERENCES_ACL
+ | INDEX_ACL | ALTER_ACL | CREATE_TMP_ACL | EXECUTE_ACL
+ | CREATE_VIEW_ACL | SHOW_VIEW_ACL | CREATE_PROC_ACL | ALTER_PROC_ACL
+ | EVENT_ACL | TRIGGER_ACL ;
+
+ if (unlikely(want_access & always_forbidden))
+ return ACL_INTERNAL_ACCESS_DENIED;
+
+ /*
+ Proceed with regular grant tables,
+ to give administrative control to the DBA.
+ */
+ return ACL_INTERNAL_ACCESS_CHECK_GRANT;
+}
+
+const ACL_internal_table_access *
+PFS_internal_schema_access::lookup(const char *name) const
+{
+ const PFS_engine_table_share* share;
+ share= PFS_engine_table::find_engine_table_share(name);
+ if (share)
+ return share->m_acl;
+ /*
+ Do not return NULL, it would mean we are not interested
+ in privilege checks for unknown tables.
+ Instead, return an object that denies every actions,
+ to prevent users for creating their own tables in the
+ performance_schema database schema.
+ */
+ return &pfs_unknown_acl;
+}
+
+PFS_internal_schema_access pfs_internal_access;
+
+void initialize_performance_schema_acl(bool bootstrap)
+{
+ /*
+ ACL is always enforced, even if the performance schema
+ is not enabled (the tables are still visible).
+ */
+ if (! bootstrap)
+ {
+ ACL_internal_schema_registry::register_schema(&PERFORMANCE_SCHEMA_str,
+ &pfs_internal_access);
+ }
+}
+
+PFS_readonly_acl pfs_readonly_acl;
+
+ACL_internal_access_result
+PFS_readonly_acl::check(ulong want_access, ulong *save_priv) const
+{
+ const ulong always_forbidden= INSERT_ACL | UPDATE_ACL | DELETE_ACL
+ | /* CREATE_ACL | */ REFERENCES_ACL | INDEX_ACL | ALTER_ACL
+ | CREATE_VIEW_ACL | SHOW_VIEW_ACL | TRIGGER_ACL | LOCK_TABLES_ACL;
+
+ if (unlikely(want_access & always_forbidden))
+ return ACL_INTERNAL_ACCESS_DENIED;
+
+ return ACL_INTERNAL_ACCESS_CHECK_GRANT;
+}
+
+PFS_truncatable_acl pfs_truncatable_acl;
+
+ACL_internal_access_result
+PFS_truncatable_acl::check(ulong want_access, ulong *save_priv) const
+{
+ const ulong always_forbidden= INSERT_ACL | UPDATE_ACL | DELETE_ACL
+ | /* CREATE_ACL | */ REFERENCES_ACL | INDEX_ACL | ALTER_ACL
+ | CREATE_VIEW_ACL | SHOW_VIEW_ACL | TRIGGER_ACL | LOCK_TABLES_ACL;
+
+ if (unlikely(want_access & always_forbidden))
+ return ACL_INTERNAL_ACCESS_DENIED;
+
+ return ACL_INTERNAL_ACCESS_CHECK_GRANT;
+}
+
+PFS_updatable_acl pfs_updatable_acl;
+
+ACL_internal_access_result
+PFS_updatable_acl::check(ulong want_access, ulong *save_priv) const
+{
+ const ulong always_forbidden= INSERT_ACL | DELETE_ACL
+ | /* CREATE_ACL | */ REFERENCES_ACL | INDEX_ACL | ALTER_ACL
+ | CREATE_VIEW_ACL | SHOW_VIEW_ACL | TRIGGER_ACL;
+
+ if (unlikely(want_access & always_forbidden))
+ return ACL_INTERNAL_ACCESS_DENIED;
+
+ return ACL_INTERNAL_ACCESS_CHECK_GRANT;
+}
+
+PFS_editable_acl pfs_editable_acl;
+
+ACL_internal_access_result
+PFS_editable_acl::check(ulong want_access, ulong *save_priv) const
+{
+ const ulong always_forbidden= /* CREATE_ACL | */ REFERENCES_ACL
+ | INDEX_ACL | ALTER_ACL | CREATE_VIEW_ACL | SHOW_VIEW_ACL | TRIGGER_ACL;
+
+ if (unlikely(want_access & always_forbidden))
+ return ACL_INTERNAL_ACCESS_DENIED;
+
+ return ACL_INTERNAL_ACCESS_CHECK_GRANT;
+}
+
+PFS_unknown_acl pfs_unknown_acl;
+
+ACL_internal_access_result
+PFS_unknown_acl::check(ulong want_access, ulong *save_priv) const
+{
+ const ulong always_forbidden= CREATE_ACL
+ | REFERENCES_ACL | INDEX_ACL | ALTER_ACL
+ | CREATE_VIEW_ACL | TRIGGER_ACL;
+
+ if (unlikely(want_access & always_forbidden))
+ return ACL_INTERNAL_ACCESS_DENIED;
+
+ /*
+ There is no point in hiding (by enforcing ACCESS_DENIED for SELECT_ACL
+ on performance_schema.*) tables that do not exist anyway.
+ When SELECT_ACL is granted on performance_schema.* or *.*,
+ SELECT * from performance_schema.wrong_table
+ will fail with a more understandable ER_NO_SUCH_TABLE error,
+ instead of ER_TABLEACCESS_DENIED_ERROR.
+ The same goes for other DML (INSERT_ACL | UPDATE_ACL | DELETE_ACL),
+ for ease of use: error messages will be less surprising.
+ */
+ return ACL_INTERNAL_ACCESS_CHECK_GRANT;
+}
+
+/**
+ SHOW ENGINE PERFORMANCE_SCHEMA STATUS.
+ @param hton Storage engine handler
+ @param thd Current thread
+ @param print Print function
+ @param stat status to show
+*/
+bool pfs_show_status(handlerton *hton, THD *thd,
+ stat_print_fn *print, enum ha_stat_type stat)
+{
+ char buf[1024];
+ uint buflen;
+ const char *name;
+ int i;
+ uint size;
+
+ DBUG_ENTER("pfs_show_status");
+
+ /*
+ Note about naming conventions:
+ - Internal buffers exposed as a table in the performance schema are named
+ after the table, as in 'events_waits_current'
+ - Internal buffers not exposed by a table are named with parenthesis,
+ as in '(pfs_mutex_class)'.
+ */
+ if (stat != HA_ENGINE_STATUS)
+ DBUG_RETURN(false);
+
+ uint total_memory= 0;
+
+ for (i=0; /* empty */; i++)
+ {
+ switch (i){
+ case 0:
+ name= "events_waits_current.row_size";
+ size= sizeof(PFS_events_waits);
+ break;
+ case 1:
+ name= "events_waits_current.row_count";
+ size= WAIT_STACK_SIZE * thread_max;
+ break;
+ case 2:
+ name= "events_waits_history.row_size";
+ size= sizeof(PFS_events_waits);
+ break;
+ case 3:
+ name= "events_waits_history.row_count";
+ size= events_waits_history_per_thread * thread_max;
+ break;
+ case 4:
+ name= "events_waits_history.memory";
+ size= events_waits_history_per_thread * thread_max
+ * sizeof(PFS_events_waits);
+ total_memory+= size;
+ break;
+ case 5:
+ name= "events_waits_history_long.row_size";
+ size= sizeof(PFS_events_waits);
+ break;
+ case 6:
+ name= "events_waits_history_long.row_count";
+ size= events_waits_history_long_size;
+ break;
+ case 7:
+ name= "events_waits_history_long.memory";
+ size= events_waits_history_long_size * sizeof(PFS_events_waits);
+ total_memory+= size;
+ break;
+ case 8:
+ name= "(pfs_mutex_class).row_size";
+ size= sizeof(PFS_mutex_class);
+ break;
+ case 9:
+ name= "(pfs_mutex_class).row_count";
+ size= mutex_class_max;
+ break;
+ case 10:
+ name= "(pfs_mutex_class).memory";
+ size= mutex_class_max * sizeof(PFS_mutex_class);
+ total_memory+= size;
+ break;
+ case 11:
+ name= "(pfs_rwlock_class).row_size";
+ size= sizeof(PFS_rwlock_class);
+ break;
+ case 12:
+ name= "(pfs_rwlock_class).row_count";
+ size= rwlock_class_max;
+ break;
+ case 13:
+ name= "(pfs_rwlock_class).memory";
+ size= rwlock_class_max * sizeof(PFS_rwlock_class);
+ total_memory+= size;
+ break;
+ case 14:
+ name= "(pfs_cond_class).row_size";
+ size= sizeof(PFS_cond_class);
+ break;
+ case 15:
+ name= "(pfs_cond_class).row_count";
+ size= cond_class_max;
+ break;
+ case 16:
+ name= "(pfs_cond_class).memory";
+ size= cond_class_max * sizeof(PFS_cond_class);
+ total_memory+= size;
+ break;
+ case 17:
+ name= "(pfs_thread_class).row_size";
+ size= sizeof(PFS_thread_class);
+ break;
+ case 18:
+ name= "(pfs_thread_class).row_count";
+ size= thread_class_max;
+ break;
+ case 19:
+ name= "(pfs_thread_class).memory";
+ size= thread_class_max * sizeof(PFS_thread_class);
+ total_memory+= size;
+ break;
+ case 20:
+ name= "(pfs_file_class).row_size";
+ size= sizeof(PFS_file_class);
+ break;
+ case 21:
+ name= "(pfs_file_class).row_count";
+ size= file_class_max;
+ break;
+ case 22:
+ name= "(pfs_file_class).memory";
+ size= file_class_max * sizeof(PFS_file_class);
+ total_memory+= size;
+ break;
+ case 23:
+ name= "mutex_instances.row_size";
+ size= sizeof(PFS_mutex);
+ break;
+ case 24:
+ name= "mutex_instances.row_count";
+ size= mutex_max;
+ break;
+ case 25:
+ name= "mutex_instances.memory";
+ size= mutex_max * sizeof(PFS_mutex);
+ total_memory+= size;
+ break;
+ case 26:
+ name= "rwlock_instances.row_size";
+ size= sizeof(PFS_rwlock);
+ break;
+ case 27:
+ name= "rwlock_instances.row_count";
+ size= rwlock_max;
+ break;
+ case 28:
+ name= "rwlock_instances.memory";
+ size= rwlock_max * sizeof(PFS_rwlock);
+ total_memory+= size;
+ break;
+ case 29:
+ name= "cond_instances.row_size";
+ size= sizeof(PFS_cond);
+ break;
+ case 30:
+ name= "cond_instances.row_count";
+ size= cond_max;
+ break;
+ case 31:
+ name= "cond_instances.memory";
+ size= cond_max * sizeof(PFS_cond);
+ total_memory+= size;
+ break;
+ case 32:
+ name= "threads.row_size";
+ size= sizeof(PFS_thread);
+ break;
+ case 33:
+ name= "threads.row_count";
+ size= thread_max;
+ break;
+ case 34:
+ name= "threads.memory";
+ size= thread_max * sizeof(PFS_thread);
+ total_memory+= size;
+ break;
+ case 35:
+ name= "file_instances.row_size";
+ size= sizeof(PFS_file);
+ break;
+ case 36:
+ name= "file_instances.row_count";
+ size= file_max;
+ break;
+ case 37:
+ name= "file_instances.memory";
+ size= file_max * sizeof(PFS_file);
+ total_memory+= size;
+ break;
+ case 38:
+ name= "(pfs_file_handle).row_size";
+ size= sizeof(PFS_file*);
+ break;
+ case 39:
+ name= "(pfs_file_handle).row_count";
+ size= file_handle_max;
+ break;
+ case 40:
+ name= "(pfs_file_handle).memory";
+ size= file_handle_max * sizeof(PFS_file*);
+ total_memory+= size;
+ break;
+ case 41:
+ name= "events_waits_summary_by_thread_by_event_name.row_size";
+ size= sizeof(PFS_single_stat);
+ break;
+ case 42:
+ name= "events_waits_summary_by_thread_by_event_name.row_count";
+ size= thread_max * wait_class_max;
+ break;
+ case 43:
+ name= "events_waits_summary_by_thread_by_event_name.memory";
+ size= thread_max * wait_class_max * sizeof(PFS_single_stat);
+ total_memory+= size;
+ break;
+ case 44:
+ name= "(pfs_table_share).row_size";
+ size= sizeof(PFS_table_share);
+ break;
+ case 45:
+ name= "(pfs_table_share).row_count";
+ size= table_share_max;
+ break;
+ case 46:
+ name= "(pfs_table_share).memory";
+ size= table_share_max * sizeof(PFS_table_share);
+ total_memory+= size;
+ break;
+ case 47:
+ name= "(pfs_table).row_size";
+ size= sizeof(PFS_table);
+ break;
+ case 48:
+ name= "(pfs_table).row_count";
+ size= table_max;
+ break;
+ case 49:
+ name= "(pfs_table).memory";
+ size= table_max * sizeof(PFS_table);
+ total_memory+= size;
+ break;
+ case 50:
+ name= "setup_actors.row_size";
+ size= sizeof(PFS_setup_actor);
+ break;
+ case 51:
+ name= "setup_actors.row_count";
+ size= setup_actor_max;
+ break;
+ case 52:
+ name= "setup_actors.memory";
+ size= setup_actor_max * sizeof(PFS_setup_actor);
+ total_memory+= size;
+ break;
+ case 53:
+ name= "setup_objects.row_size";
+ size= sizeof(PFS_setup_object);
+ break;
+ case 54:
+ name= "setup_objects.row_count";
+ size= setup_object_max;
+ break;
+ case 55:
+ name= "setup_objects.memory";
+ size= setup_object_max * sizeof(PFS_setup_object);
+ total_memory+= size;
+ break;
+ case 56:
+ name= "(pfs_account).row_size";
+ size= sizeof(PFS_account);
+ break;
+ case 57:
+ name= "(pfs_account).row_count";
+ size= account_max;
+ break;
+ case 58:
+ name= "(pfs_account).memory";
+ size= account_max * sizeof(PFS_account);
+ total_memory+= size;
+ break;
+ case 59:
+ name= "events_waits_summary_by_account_by_event_name.row_size";
+ size= sizeof(PFS_single_stat);
+ break;
+ case 60:
+ name= "events_waits_summary_by_account_by_event_name.row_count";
+ size= account_max * wait_class_max;
+ break;
+ case 61:
+ name= "events_waits_summary_by_account_by_event_name.memory";
+ size= account_max * wait_class_max * sizeof(PFS_single_stat);
+ total_memory+= size;
+ break;
+ case 62:
+ name= "events_waits_summary_by_user_by_event_name.row_size";
+ size= sizeof(PFS_single_stat);
+ break;
+ case 63:
+ name= "events_waits_summary_by_user_by_event_name.row_count";
+ size= user_max * wait_class_max;
+ break;
+ case 64:
+ name= "events_waits_summary_by_user_by_event_name.memory";
+ size= user_max * wait_class_max * sizeof(PFS_single_stat);
+ total_memory+= size;
+ break;
+ case 65:
+ name= "events_waits_summary_by_host_by_event_name.row_size";
+ size= sizeof(PFS_single_stat);
+ break;
+ case 66:
+ name= "events_waits_summary_by_host_by_event_name.row_count";
+ size= host_max * wait_class_max;
+ break;
+ case 67:
+ name= "events_waits_summary_by_host_by_event_name.memory";
+ size= host_max * wait_class_max * sizeof(PFS_single_stat);
+ total_memory+= size;
+ break;
+ case 68:
+ name= "(pfs_user).row_size";
+ size= sizeof(PFS_user);
+ break;
+ case 69:
+ name= "(pfs_user).row_count";
+ size= user_max;
+ break;
+ case 70:
+ name= "(pfs_user).memory";
+ size= user_max * sizeof(PFS_user);
+ total_memory+= size;
+ break;
+ case 71:
+ name= "(pfs_host).row_size";
+ size= sizeof(PFS_host);
+ break;
+ case 72:
+ name= "(pfs_host).row_count";
+ size= host_max;
+ break;
+ case 73:
+ name= "(pfs_host).memory";
+ size= host_max * sizeof(PFS_host);
+ total_memory+= size;
+ break;
+ case 74:
+ name= "(pfs_stage_class).row_size";
+ size= sizeof(PFS_stage_class);
+ break;
+ case 75:
+ name= "(pfs_stage_class).row_count";
+ size= stage_class_max;
+ break;
+ case 76:
+ name= "(pfs_stage_class).memory";
+ size= stage_class_max * sizeof(PFS_stage_class);
+ total_memory+= size;
+ break;
+ case 77:
+ name= "events_stages_history.row_size";
+ size= sizeof(PFS_events_stages);
+ break;
+ case 78:
+ name= "events_stages_history.row_count";
+ size= events_stages_history_per_thread * thread_max;
+ break;
+ case 79:
+ name= "events_stages_history.memory";
+ size= events_stages_history_per_thread * thread_max
+ * sizeof(PFS_events_stages);
+ total_memory+= size;
+ break;
+ case 80:
+ name= "events_stages_history_long.row_size";
+ size= sizeof(PFS_events_stages);
+ break;
+ case 81:
+ name= "events_stages_history_long.row_count";
+ size= events_stages_history_long_size;
+ break;
+ case 82:
+ name= "events_stages_history_long.memory";
+ size= events_stages_history_long_size * sizeof(PFS_events_stages);
+ total_memory+= size;
+ break;
+ case 83:
+ name= "events_stages_summary_by_thread_by_event_name.row_size";
+ size= sizeof(PFS_stage_stat);
+ break;
+ case 84:
+ name= "events_stages_summary_by_thread_by_event_name.row_count";
+ size= thread_max * stage_class_max;
+ break;
+ case 85:
+ name= "events_stages_summary_by_thread_by_event_name.memory";
+ size= thread_max * stage_class_max * sizeof(PFS_stage_stat);
+ total_memory+= size;
+ break;
+ case 86:
+ name= "events_stages_summary_global_by_event_name.row_size";
+ size= sizeof(PFS_stage_stat);
+ break;
+ case 87:
+ name= "events_stages_summary_global_by_event_name.row_count";
+ size= stage_class_max;
+ break;
+ case 88:
+ name= "events_stages_summary_global_by_event_name.memory";
+ size= stage_class_max * sizeof(PFS_stage_stat);
+ total_memory+= size;
+ break;
+ case 89:
+ name= "events_stages_summary_by_account_by_event_name.row_size";
+ size= sizeof(PFS_stage_stat);
+ break;
+ case 90:
+ name= "events_stages_summary_by_account_by_event_name.row_count";
+ size= account_max * stage_class_max;
+ break;
+ case 91:
+ name= "events_stages_summary_by_account_by_event_name.memory";
+ size= account_max * stage_class_max * sizeof(PFS_stage_stat);
+ total_memory+= size;
+ break;
+ case 92:
+ name= "events_stages_summary_by_user_by_event_name.row_size";
+ size= sizeof(PFS_stage_stat);
+ break;
+ case 93:
+ name= "events_stages_summary_by_user_by_event_name.row_count";
+ size= user_max * stage_class_max;
+ break;
+ case 94:
+ name= "events_stages_summary_by_user_by_event_name.memory";
+ size= user_max * stage_class_max * sizeof(PFS_stage_stat);
+ total_memory+= size;
+ break;
+ case 95:
+ name= "events_stages_summary_by_host_by_event_name.row_size";
+ size= sizeof(PFS_stage_stat);
+ break;
+ case 96:
+ name= "events_stages_summary_by_host_by_event_name.row_count";
+ size= host_max * stage_class_max;
+ break;
+ case 97:
+ name= "events_stages_summary_by_host_by_event_name.memory";
+ size= host_max * stage_class_max * sizeof(PFS_stage_stat);
+ total_memory+= size;
+ break;
+ case 98:
+ name= "(pfs_statement_class).row_size";
+ size= sizeof(PFS_statement_class);
+ break;
+ case 99:
+ name= "(pfs_statement_class).row_count";
+ size= statement_class_max;
+ break;
+ case 100:
+ name= "(pfs_statement_class).memory";
+ size= statement_class_max * sizeof(PFS_statement_class);
+ total_memory+= size;
+ break;
+ case 101:
+ name= "events_statements_history.row_size";
+ size= sizeof(PFS_events_statements);
+ break;
+ case 102:
+ name= "events_statements_history.row_count";
+ size= events_statements_history_per_thread * thread_max;
+ break;
+ case 103:
+ name= "events_statements_history.memory";
+ size= events_statements_history_per_thread * thread_max
+ * sizeof(PFS_events_statements);
+ total_memory+= size;
+ break;
+ case 104:
+ name= "events_statements_history_long.row_size";
+ size= sizeof(PFS_events_statements);
+ break;
+ case 105:
+ name= "events_statements_history_long.row_count";
+ size= events_statements_history_long_size;
+ break;
+ case 106:
+ name= "events_statements_history_long.memory";
+ size= events_statements_history_long_size * sizeof(PFS_events_statements);
+ total_memory+= size;
+ break;
+ case 107:
+ name= "events_statements_summary_by_thread_by_event_name.row_size";
+ size= sizeof(PFS_statement_stat);
+ break;
+ case 108:
+ name= "events_statements_summary_by_thread_by_event_name.row_count";
+ size= thread_max * statement_class_max;
+ break;
+ case 109:
+ name= "events_statements_summary_by_thread_by_event_name.memory";
+ size= thread_max * statement_class_max * sizeof(PFS_statement_stat);
+ total_memory+= size;
+ break;
+ case 110:
+ name= "events_statements_summary_global_by_event_name.row_size";
+ size= sizeof(PFS_statement_stat);
+ break;
+ case 111:
+ name= "events_statements_summary_global_by_event_name.row_count";
+ size= statement_class_max;
+ break;
+ case 112:
+ name= "events_statements_summary_global_by_event_name.memory";
+ size= statement_class_max * sizeof(PFS_statement_stat);
+ total_memory+= size;
+ break;
+ case 113:
+ name= "events_statements_summary_by_account_by_event_name.row_size";
+ size= sizeof(PFS_statement_stat);
+ break;
+ case 114:
+ name= "events_statements_summary_by_account_by_event_name.row_count";
+ size= account_max * statement_class_max;
+ break;
+ case 115:
+ name= "events_statements_summary_by_account_by_event_name.memory";
+ size= account_max * statement_class_max * sizeof(PFS_statement_stat);
+ total_memory+= size;
+ break;
+ case 116:
+ name= "events_statements_summary_by_user_by_event_name.row_size";
+ size= sizeof(PFS_statement_stat);
+ break;
+ case 117:
+ name= "events_statements_summary_by_user_by_event_name.row_count";
+ size= user_max * statement_class_max;
+ break;
+ case 118:
+ name= "events_statements_summary_by_user_by_event_name.memory";
+ size= user_max * statement_class_max * sizeof(PFS_statement_stat);
+ total_memory+= size;
+ break;
+ case 119:
+ name= "events_statements_summary_by_host_by_event_name.row_size";
+ size= sizeof(PFS_statement_stat);
+ break;
+ case 120:
+ name= "events_statements_summary_by_host_by_event_name.row_count";
+ size= host_max * statement_class_max;
+ break;
+ case 121:
+ name= "events_statements_summary_by_host_by_event_name.memory";
+ size= host_max * statement_class_max * sizeof(PFS_statement_stat);
+ total_memory+= size;
+ break;
+ case 122:
+ name= "events_statements_current.row_size";
+ size= sizeof(PFS_events_statements);
+ break;
+ case 123:
+ name= "events_statements_current.row_count";
+ size= thread_max * statement_stack_max;
+ break;
+ case 124:
+ name= "events_statements_current.memory";
+ size= thread_max * statement_stack_max * sizeof(PFS_events_statements);
+ total_memory+= size;
+ break;
+ case 125:
+ name= "(pfs_socket_class).row_size";
+ size= sizeof(PFS_socket_class);
+ break;
+ case 126:
+ name= "(pfs_socket_class).row_count";
+ size= socket_class_max;
+ break;
+ case 127:
+ name= "(pfs_socket_class).memory";
+ size= socket_class_max * sizeof(PFS_socket_class);
+ total_memory+= size;
+ break;
+ case 128:
+ name= "socket_instances.row_size";
+ size= sizeof(PFS_socket);
+ break;
+ case 129:
+ name= "socket_instances.row_count";
+ size= socket_max;
+ break;
+ case 130:
+ name= "socket_instances.memory";
+ size= socket_max * sizeof(PFS_socket);
+ total_memory+= size;
+ break;
+ case 131:
+ name= "events_statements_summary_by_digest.row_size";
+ size= sizeof(PFS_statements_digest_stat);
+ break;
+ case 132:
+ name= "events_statements_summary_by_digest.row_count";
+ size= digest_max;
+ break;
+ case 133:
+ name= "events_statements_summary_by_digest.memory";
+ size= digest_max * sizeof(PFS_statements_digest_stat);
+ total_memory+= size;
+ break;
+ case 134:
+ name= "session_connect_attrs.row_size";
+ size= thread_max;
+ break;
+ case 135:
+ name= "session_connect_attrs.row_count";
+ size= session_connect_attrs_size_per_thread;
+ break;
+ case 136:
+ name= "session_connect_attrs.memory";
+ size= thread_max * session_connect_attrs_size_per_thread;
+ total_memory+= size;
+ break;
+
+ case 137:
+ name= "(account_hash).count";
+ size= account_hash.count;
+ break;
+ case 138:
+ name= "(account_hash).size";
+ size= account_hash.size;
+ break;
+ case 139:
+ name= "(digest_hash).count";
+ size= digest_hash.count;
+ break;
+ case 140:
+ name= "(digest_hash).size";
+ size= digest_hash.size;
+ break;
+ case 141:
+ name= "(filename_hash).count";
+ size= filename_hash.count;
+ break;
+ case 142:
+ name= "(filename_hash).size";
+ size= filename_hash.size;
+ break;
+ case 143:
+ name= "(host_hash).count";
+ size= host_hash.count;
+ break;
+ case 144:
+ name= "(host_hash).size";
+ size= host_hash.size;
+ break;
+ case 145:
+ name= "(setup_actor_hash).count";
+ size= setup_actor_hash.count;
+ break;
+ case 146:
+ name= "(setup_actor_hash).size";
+ size= setup_actor_hash.size;
+ break;
+ case 147:
+ name= "(setup_object_hash).count";
+ size= setup_object_hash.count;
+ break;
+ case 148:
+ name= "(setup_object_hash).size";
+ size= setup_object_hash.size;
+ break;
+ case 149:
+ name= "(table_share_hash).count";
+ size= table_share_hash.count;
+ break;
+ case 150:
+ name= "(table_share_hash).size";
+ size= table_share_hash.size;
+ break;
+ case 151:
+ name= "(user_hash).count";
+ size= user_hash.count;
+ break;
+ case 152:
+ name= "(user_hash).size";
+ size= user_hash.size;
+ break;
+ case 153:
+ /*
+ This is not a performance_schema buffer,
+ the data is maintained in the server,
+ in hostname_cache.
+ Print the size only, there are:
+ - no host_cache.count
+ - no host_cache.memory
+ */
+ name= "host_cache.size";
+ size= sizeof(Host_entry);
+ break;
+
+ /*
+ This case must be last,
+ for aggregation in total_memory.
+ */
+ case 154:
+ name= "performance_schema.memory";
+ size= total_memory;
+ /* This will fail if something is not advertised here */
+ DBUG_ASSERT(size == pfs_allocated_memory);
+ break;
+ default:
+ goto end;
+ break;
+ }
+
+ buflen= int10_to_str(size, buf, 10) - buf;
+ if (print(thd,
+ PERFORMANCE_SCHEMA_str.str, PERFORMANCE_SCHEMA_str.length,
+ name, strlen(name),
+ buf, buflen))
+ DBUG_RETURN(true);
+ }
+
+end:
+ DBUG_RETURN(false);
+}
+
+/** @} */
+