438 lines
14 KiB
C++
438 lines
14 KiB
C++
/* Copyright (c) 2008, 2015, 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 as published by
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the Free Software Foundation; version 2 of the License.
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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 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 Foundation,
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51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
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/**
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@file storage/perfschema/pfs_server.cc
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Private interface for the server (implementation).
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*/
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#include "my_global.h"
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#include "my_sys.h"
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#include "mysys_err.h"
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#include "pfs_server.h"
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#include "pfs.h"
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#include "pfs_global.h"
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#include "pfs_instr_class.h"
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#include "pfs_builtin_memory.h"
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#include "pfs_instr.h"
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#include "pfs_events_waits.h"
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#include "pfs_events_stages.h"
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#include "pfs_events_statements.h"
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#include "pfs_events_transactions.h"
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#include "pfs_timer.h"
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#include "pfs_setup_actor.h"
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#include "pfs_setup_object.h"
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#include "pfs_host.h"
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#include "pfs_user.h"
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#include "pfs_account.h"
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#include "pfs_defaults.h"
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#include "pfs_digest.h"
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#include "pfs_program.h"
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#include "template_utils.h"
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#include "pfs_prepared_stmt.h"
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PFS_global_param pfs_param;
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PFS_table_stat PFS_table_stat::g_reset_template;
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C_MODE_START
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static void destroy_pfs_thread(void *key);
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C_MODE_END
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static void cleanup_performance_schema(void);
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void cleanup_instrument_config(void);
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void pre_initialize_performance_schema()
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{
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pfs_initialized= false;
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init_all_builtin_memory_class();
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PFS_table_stat::g_reset_template.reset();
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global_idle_stat.reset();
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global_table_io_stat.reset();
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global_table_lock_stat.reset();
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if (my_create_thread_local_key(&THR_PFS, destroy_pfs_thread))
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return;
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if (my_create_thread_local_key(&THR_PFS_VG, NULL)) // global_variables
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return;
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if (my_create_thread_local_key(&THR_PFS_SV, NULL)) // session_variables
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return;
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if (my_create_thread_local_key(&THR_PFS_VBT, NULL)) // variables_by_thread
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return;
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if (my_create_thread_local_key(&THR_PFS_SG, NULL)) // global_status
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return;
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if (my_create_thread_local_key(&THR_PFS_SS, NULL)) // session_status
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return;
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if (my_create_thread_local_key(&THR_PFS_SBT, NULL)) // status_by_thread
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return;
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if (my_create_thread_local_key(&THR_PFS_SBU, NULL)) // status_by_user
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return;
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if (my_create_thread_local_key(&THR_PFS_SBH, NULL)) // status_by_host
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return;
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if (my_create_thread_local_key(&THR_PFS_SBA, NULL)) // status_by_account
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return;
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THR_PFS_initialized= true;
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}
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struct PSI_bootstrap*
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initialize_performance_schema(PFS_global_param *param)
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{
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if (!THR_PFS_initialized)
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{
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/* Pre-initialization failed. */
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return NULL;
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}
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pfs_enabled= param->m_enabled;
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pfs_automated_sizing(param);
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init_timers();
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init_event_name_sizing(param);
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register_global_classes();
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if (init_sync_class(param->m_mutex_class_sizing,
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param->m_rwlock_class_sizing,
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param->m_cond_class_sizing) ||
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init_thread_class(param->m_thread_class_sizing) ||
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init_table_share(param->m_table_share_sizing) ||
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init_table_share_lock_stat(param->m_table_lock_stat_sizing) ||
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init_table_share_index_stat(param->m_index_stat_sizing) ||
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init_file_class(param->m_file_class_sizing) ||
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init_stage_class(param->m_stage_class_sizing) ||
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init_statement_class(param->m_statement_class_sizing) ||
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init_socket_class(param->m_socket_class_sizing) ||
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init_memory_class(param->m_memory_class_sizing) ||
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init_instruments(param) ||
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init_events_waits_history_long(
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param->m_events_waits_history_long_sizing) ||
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init_events_stages_history_long(
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param->m_events_stages_history_long_sizing) ||
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init_events_statements_history_long(
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param->m_events_statements_history_long_sizing) ||
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init_events_transactions_history_long(
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param->m_events_transactions_history_long_sizing) ||
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init_file_hash(param) ||
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init_table_share_hash(param) ||
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init_setup_actor(param) ||
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init_setup_actor_hash(param) ||
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init_setup_object(param) ||
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init_setup_object_hash(param) ||
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init_host(param) ||
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init_host_hash(param) ||
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init_user(param) ||
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init_user_hash(param) ||
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init_account(param) ||
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init_account_hash(param) ||
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init_digest(param) ||
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init_digest_hash(param) ||
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init_program(param) ||
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init_program_hash(param) ||
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init_prepared_stmt(param))
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{
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/*
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The performance schema initialization failed.
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Free the memory used, and disable the instrumentation.
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*/
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cleanup_performance_schema();
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return NULL;
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}
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if (param->m_enabled)
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{
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/** Default values for SETUP_CONSUMERS */
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flag_events_stages_current= param->m_consumer_events_stages_current_enabled;
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flag_events_stages_history= param->m_consumer_events_stages_history_enabled;
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flag_events_stages_history_long= param->m_consumer_events_stages_history_long_enabled;
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flag_events_statements_current= param->m_consumer_events_statements_current_enabled;
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flag_events_statements_history= param->m_consumer_events_statements_history_enabled;
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flag_events_statements_history_long= param->m_consumer_events_statements_history_long_enabled;
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flag_events_transactions_current= param->m_consumer_events_transactions_current_enabled;
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flag_events_transactions_history= param->m_consumer_events_transactions_history_enabled;
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flag_events_transactions_history_long= param->m_consumer_events_transactions_history_long_enabled;
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flag_events_waits_current= param->m_consumer_events_waits_current_enabled;
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flag_events_waits_history= param->m_consumer_events_waits_history_enabled;
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flag_events_waits_history_long= param->m_consumer_events_waits_history_long_enabled;
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flag_global_instrumentation= param->m_consumer_global_instrumentation_enabled;
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flag_thread_instrumentation= param->m_consumer_thread_instrumentation_enabled;
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flag_statements_digest= param->m_consumer_statement_digest_enabled;
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}
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else
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{
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flag_events_stages_current= false;
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flag_events_stages_history= false;
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flag_events_stages_history_long= false;
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flag_events_statements_current= false;
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flag_events_statements_history= false;
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flag_events_statements_history_long= false;
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flag_events_transactions_current= false;
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flag_events_transactions_history= false;
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flag_events_transactions_history_long= false;
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flag_events_waits_current= false;
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flag_events_waits_history= false;
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flag_events_waits_history_long= false;
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flag_global_instrumentation= false;
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flag_thread_instrumentation= false;
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flag_statements_digest= false;
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}
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pfs_initialized= true;
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if (param->m_enabled)
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{
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install_default_setup(&PFS_bootstrap);
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return &PFS_bootstrap;
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}
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return NULL;
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}
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static void destroy_pfs_thread(void *key)
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{
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PFS_thread* pfs= reinterpret_cast<PFS_thread*> (key);
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DBUG_ASSERT(pfs);
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/*
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This automatic cleanup is a last resort and best effort to avoid leaks,
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and may not work on windows due to the implementation of pthread_key_create().
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Please either use:
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- my_thread_end()
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- or PSI_server->delete_current_thread()
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in the instrumented code, to explicitly cleanup the instrumentation.
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Avoid invalid writes when the main() thread completes after shutdown:
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the memory pointed by pfs is already released.
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*/
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if (pfs_initialized)
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destroy_thread(pfs);
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}
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static void cleanup_performance_schema(void)
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{
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/*
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my.cnf options
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*/
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cleanup_instrument_config();
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/*
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All the LF_HASH
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*/
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cleanup_setup_actor_hash();
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cleanup_setup_object_hash();
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cleanup_account_hash();
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cleanup_host_hash();
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cleanup_user_hash();
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cleanup_program_hash();
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cleanup_table_share_hash();
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cleanup_file_hash();
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cleanup_digest_hash();
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/*
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Then the lookup tables
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*/
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cleanup_setup_actor();
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cleanup_setup_object();
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/*
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Then the history tables
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*/
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cleanup_events_waits_history_long();
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cleanup_events_stages_history_long();
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cleanup_events_statements_history_long();
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cleanup_events_transactions_history_long();
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/*
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Then the various aggregations
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*/
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cleanup_digest();
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cleanup_account();
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cleanup_host();
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cleanup_user();
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/*
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Then the instrument classes.
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Once a class is cleaned up,
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find_XXX_class(key)
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will return PSI_NOT_INSTRUMENTED
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*/
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cleanup_program();
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cleanup_prepared_stmt();
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cleanup_sync_class();
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cleanup_thread_class();
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cleanup_table_share();
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cleanup_table_share_lock_stat();
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cleanup_table_share_index_stat();
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cleanup_file_class();
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cleanup_stage_class();
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cleanup_statement_class();
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cleanup_socket_class();
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cleanup_memory_class();
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cleanup_instruments();
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}
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void shutdown_performance_schema(void)
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{
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pfs_initialized= false;
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/* disable everything, especially for this thread. */
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flag_events_stages_current= false;
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flag_events_stages_history= false;
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flag_events_stages_history_long= false;
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flag_events_statements_current= false;
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flag_events_statements_history= false;
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flag_events_statements_history_long= false;
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flag_events_transactions_current= false;
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flag_events_transactions_history= false;
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flag_events_transactions_history_long= false;
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flag_events_waits_current= false;
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flag_events_waits_history= false;
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flag_events_waits_history_long= false;
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flag_global_instrumentation= false;
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flag_thread_instrumentation= false;
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flag_statements_digest= false;
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global_table_io_class.m_enabled= false;
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global_table_lock_class.m_enabled= false;
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global_idle_class.m_enabled= false;
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global_metadata_class.m_enabled= false;
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global_transaction_class.m_enabled= false;
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cleanup_performance_schema();
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/*
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Be careful to not delete un-initialized keys,
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this would affect key 0, which is THR_KEY_mysys,
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*/
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if (THR_PFS_initialized)
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{
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my_set_thread_local(THR_PFS, NULL);
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my_set_thread_local(THR_PFS_VG, NULL); // global_variables
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my_set_thread_local(THR_PFS_SV, NULL); // session_variables
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my_set_thread_local(THR_PFS_VBT, NULL); // variables_by_thread
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my_set_thread_local(THR_PFS_SG, NULL); // global_status
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my_set_thread_local(THR_PFS_SS, NULL); // session_status
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my_set_thread_local(THR_PFS_SBT, NULL); // status_by_thread
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my_set_thread_local(THR_PFS_SBU, NULL); // status_by_user
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my_set_thread_local(THR_PFS_SBH, NULL); // status_by_host
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my_set_thread_local(THR_PFS_SBA, NULL); // status_by_account
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my_delete_thread_local_key(THR_PFS);
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my_delete_thread_local_key(THR_PFS_VG);
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my_delete_thread_local_key(THR_PFS_SV);
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my_delete_thread_local_key(THR_PFS_VBT);
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my_delete_thread_local_key(THR_PFS_SG);
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my_delete_thread_local_key(THR_PFS_SS);
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my_delete_thread_local_key(THR_PFS_SBT);
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my_delete_thread_local_key(THR_PFS_SBU);
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my_delete_thread_local_key(THR_PFS_SBH);
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my_delete_thread_local_key(THR_PFS_SBA);
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THR_PFS_initialized= false;
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}
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}
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/**
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Initialize the dynamic array used to hold PFS_INSTRUMENT configuration
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options.
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*/
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void init_pfs_instrument_array()
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{
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pfs_instr_config_array= new Pfs_instr_config_array(PSI_NOT_INSTRUMENTED);
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}
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/**
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Deallocate the PFS_INSTRUMENT array.
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*/
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void cleanup_instrument_config()
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{
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if (pfs_instr_config_array != NULL)
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my_free_container_pointers(*pfs_instr_config_array);
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delete pfs_instr_config_array;
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pfs_instr_config_array= NULL;
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}
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/**
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Process one performance_schema_instrument configuration string. Isolate the
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instrument name, evaluate the option value, and store them in a dynamic array.
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Return 'false' for success, 'true' for error.
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@param name Instrument name
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@param value Configuration option: 'on', 'off', etc.
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@return 0 for success, non zero for errors
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*/
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int add_pfs_instr_to_array(const char* name, const char* value)
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{
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size_t name_length= strlen(name);
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size_t value_length= strlen(value);
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/* Allocate structure plus string buffers plus null terminators */
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PFS_instr_config* e = (PFS_instr_config*)my_malloc(PSI_NOT_INSTRUMENTED,
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sizeof(PFS_instr_config)
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+ name_length + 1 + value_length + 1, MYF(MY_WME));
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if (!e) return 1;
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/* Copy the instrument name */
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e->m_name= (char*)e + sizeof(PFS_instr_config);
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memcpy(e->m_name, name, name_length);
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e->m_name_length= (uint)name_length;
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e->m_name[name_length]= '\0';
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/* Set flags accordingly */
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if (!my_strcasecmp(&my_charset_latin1, value, "counted"))
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{
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e->m_enabled= true;
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e->m_timed= false;
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}
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else
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if (!my_strcasecmp(&my_charset_latin1, value, "true") ||
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!my_strcasecmp(&my_charset_latin1, value, "on") ||
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!my_strcasecmp(&my_charset_latin1, value, "1") ||
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!my_strcasecmp(&my_charset_latin1, value, "yes"))
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{
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e->m_enabled= true;
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e->m_timed= true;
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}
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else
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if (!my_strcasecmp(&my_charset_latin1, value, "false") ||
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!my_strcasecmp(&my_charset_latin1, value, "off") ||
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!my_strcasecmp(&my_charset_latin1, value, "0") ||
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!my_strcasecmp(&my_charset_latin1, value, "no"))
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{
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e->m_enabled= false;
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e->m_timed= false;
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}
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else
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{
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my_free(e);
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return 1;
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}
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/* Add to the array of default startup options */
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if (pfs_instr_config_array->push_back(e))
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{
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my_free(e);
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return 1;
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}
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return 0;
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}
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