/* Copyright (c) 2010, 2012, 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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */ /** @file storage/perfschema/table_ews_by_user_by_event_name.cc Table EVENTS_WAITS_SUMMARY_BY_USER_BY_EVENT_NAME (implementation). */ #include "my_global.h" #include "my_pthread.h" #include "pfs_instr_class.h" #include "pfs_column_types.h" #include "pfs_column_values.h" #include "table_ews_by_user_by_event_name.h" #include "pfs_global.h" #include "pfs_account.h" #include "pfs_visitor.h" THR_LOCK table_ews_by_user_by_event_name::m_table_lock; PFS_engine_table_share table_ews_by_user_by_event_name::m_share= { { C_STRING_WITH_LEN("events_waits_summary_by_user_by_event_name") }, &pfs_truncatable_acl, table_ews_by_user_by_event_name::create, NULL, /* write_row */ table_ews_by_user_by_event_name::delete_all_rows, NULL, /* get_row_count */ 1000, /* records */ sizeof(pos_ews_by_user_by_event_name), &m_table_lock, { C_STRING_WITH_LEN("CREATE TABLE events_waits_summary_by_user_by_event_name(" "USER CHAR(16) collate utf8_bin default null," "EVENT_NAME VARCHAR(128) not null," "COUNT_STAR BIGINT unsigned not null," "SUM_TIMER_WAIT BIGINT unsigned not null," "MIN_TIMER_WAIT BIGINT unsigned not null," "AVG_TIMER_WAIT BIGINT unsigned not null," "MAX_TIMER_WAIT BIGINT unsigned not null)") } }; PFS_engine_table* table_ews_by_user_by_event_name::create(void) { return new table_ews_by_user_by_event_name(); } int table_ews_by_user_by_event_name::delete_all_rows(void) { reset_events_waits_by_thread(); reset_events_waits_by_account(); reset_events_waits_by_user(); return 0; } table_ews_by_user_by_event_name::table_ews_by_user_by_event_name() : PFS_engine_table(&m_share, &m_pos), m_row_exists(false), m_pos(), m_next_pos() {} void table_ews_by_user_by_event_name::reset_position(void) { m_pos.reset(); m_next_pos.reset(); } int table_ews_by_user_by_event_name::rnd_next(void) { PFS_user *user; PFS_instr_class *instr_class; for (m_pos.set_at(&m_next_pos); m_pos.has_more_user(); m_pos.next_user()) { user= &user_array[m_pos.m_index_1]; if (user->m_lock.is_populated()) { for ( ; m_pos.has_more_view(); m_pos.next_view()) { switch (m_pos.m_index_2) { case pos_ews_by_user_by_event_name::VIEW_MUTEX: instr_class= find_mutex_class(m_pos.m_index_3); break; case pos_ews_by_user_by_event_name::VIEW_RWLOCK: instr_class= find_rwlock_class(m_pos.m_index_3); break; case pos_ews_by_user_by_event_name::VIEW_COND: instr_class= find_cond_class(m_pos.m_index_3); break; case pos_ews_by_user_by_event_name::VIEW_FILE: instr_class= find_file_class(m_pos.m_index_3); break; case pos_ews_by_user_by_event_name::VIEW_TABLE: instr_class= find_table_class(m_pos.m_index_3); break; case pos_ews_by_user_by_event_name::VIEW_SOCKET: instr_class= find_socket_class(m_pos.m_index_3); break; case pos_ews_by_user_by_event_name::VIEW_IDLE: instr_class= find_idle_class(m_pos.m_index_3); break; default: instr_class= NULL; DBUG_ASSERT(false); break; } if (instr_class) { make_row(user, instr_class); m_next_pos.set_after(&m_pos); return 0; } } } } return HA_ERR_END_OF_FILE; } int table_ews_by_user_by_event_name::rnd_pos(const void *pos) { PFS_user *user; PFS_instr_class *instr_class; set_position(pos); DBUG_ASSERT(m_pos.m_index_1 < user_max); user= &user_array[m_pos.m_index_1]; if (! user->m_lock.is_populated()) return HA_ERR_RECORD_DELETED; switch (m_pos.m_index_2) { case pos_ews_by_user_by_event_name::VIEW_MUTEX: instr_class= find_mutex_class(m_pos.m_index_3); break; case pos_ews_by_user_by_event_name::VIEW_RWLOCK: instr_class= find_rwlock_class(m_pos.m_index_3); break; case pos_ews_by_user_by_event_name::VIEW_COND: instr_class= find_cond_class(m_pos.m_index_3); break; case pos_ews_by_user_by_event_name::VIEW_FILE: instr_class= find_file_class(m_pos.m_index_3); break; case pos_ews_by_user_by_event_name::VIEW_TABLE: instr_class= find_table_class(m_pos.m_index_3); break; case pos_ews_by_user_by_event_name::VIEW_SOCKET: instr_class= find_socket_class(m_pos.m_index_3); break; case pos_ews_by_user_by_event_name::VIEW_IDLE: instr_class= find_idle_class(m_pos.m_index_3); break; default: instr_class= NULL; DBUG_ASSERT(false); break; } if (instr_class) { make_row(user, instr_class); return 0; } return HA_ERR_RECORD_DELETED; } void table_ews_by_user_by_event_name ::make_row(PFS_user *user, PFS_instr_class *klass) { pfs_lock lock; m_row_exists= false; user->m_lock.begin_optimistic_lock(&lock); if (m_row.m_user.make_row(user)) return; m_row.m_event_name.make_row(klass); PFS_connection_wait_visitor visitor(klass); PFS_connection_iterator::visit_user(user, true, true, & visitor); if (! user->m_lock.end_optimistic_lock(&lock)) return; m_row_exists= true; get_normalizer(klass); m_row.m_stat.set(m_normalizer, &visitor.m_stat); } int table_ews_by_user_by_event_name ::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 */ DBUG_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: /* USER */ m_row.m_user.set_field(f); break; case 1: /* EVENT_NAME */ m_row.m_event_name.set_field(f); break; default: /* 2, ... COUNT/SUM/MIN/AVG/MAX */ m_row.m_stat.set_field(f->field_index - 2, f); break; } } } return 0; }