/* Copyright (C) 2008-2009 Sun Microsystems, Inc 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /** @file storage/perfschema/table_setup_instruments.cc Table SETUP_INSTRUMENTS (implementation). */ #include "mysql_priv.h" #include "pfs_instr_class.h" #include "pfs_column_types.h" #include "pfs_column_values.h" #include "table_setup_instruments.h" #include "pfs_global.h" THR_LOCK table_setup_instruments::m_table_lock; static const TABLE_FIELD_TYPE field_types[]= { { { C_STRING_WITH_LEN("NAME") }, { C_STRING_WITH_LEN("varchar(128)") }, { NULL, 0} }, { { C_STRING_WITH_LEN("ENABLED") }, { C_STRING_WITH_LEN("enum(\'YES\',\'NO\')") }, { NULL, 0} }, { { C_STRING_WITH_LEN("TIMED") }, { C_STRING_WITH_LEN("enum(\'YES\',\'NO\')") }, { NULL, 0} } }; TABLE_FIELD_DEF table_setup_instruments::m_field_def= { 3, field_types }; PFS_engine_table_share table_setup_instruments::m_share= { { C_STRING_WITH_LEN("SETUP_INSTRUMENTS") }, &pfs_updatable_acl, &table_setup_instruments::create, NULL, /* write_row */ NULL, /* delete_all_rows */ 1000, /* records */ sizeof(pos_setup_instruments), &m_table_lock, &m_field_def, false /* checked */ }; PFS_engine_table* table_setup_instruments::create(void) { return new table_setup_instruments(); } table_setup_instruments::table_setup_instruments() : PFS_engine_table(&m_share, &m_pos), m_pos(), m_next_pos() {} void table_setup_instruments::reset_position(void) { m_pos.reset(); m_next_pos.reset(); } int table_setup_instruments::rnd_next(void) { PFS_mutex_class *mutex_class; PFS_rwlock_class *rwlock_class; PFS_cond_class *cond_class; PFS_file_class *file_class; for (m_pos.set_at(&m_next_pos); m_pos.has_more_view(); m_pos.next_view()) { switch (m_pos.m_index_1) { case pos_setup_instruments::VIEW_MUTEX: mutex_class= find_mutex_class(m_pos.m_index_2); if (mutex_class) { make_row(mutex_class); m_next_pos.set_after(&m_pos); return 0; } break; case pos_setup_instruments::VIEW_RWLOCK: rwlock_class= find_rwlock_class(m_pos.m_index_2); if (rwlock_class) { make_row(rwlock_class); m_next_pos.set_after(&m_pos); return 0; } break; case pos_setup_instruments::VIEW_COND: cond_class= find_cond_class(m_pos.m_index_2); if (cond_class) { make_row(cond_class); m_next_pos.set_after(&m_pos); return 0; } break; case pos_setup_instruments::VIEW_THREAD: /* Reserved for WL#4674, PERFORMANCE_SCHEMA Setup For Actors. */ break; case pos_setup_instruments::VIEW_FILE: file_class= find_file_class(m_pos.m_index_2); if (file_class) { make_row(file_class); m_next_pos.set_after(&m_pos); return 0; } break; } } return HA_ERR_END_OF_FILE; } int table_setup_instruments::rnd_pos(const void *pos) { PFS_mutex_class *mutex_class; PFS_rwlock_class *rwlock_class; PFS_cond_class *cond_class; PFS_file_class *file_class; set_position(pos); switch (m_pos.m_index_1) { case pos_setup_instruments::VIEW_MUTEX: mutex_class= find_mutex_class(m_pos.m_index_2); if (mutex_class) { make_row(mutex_class); return 0; } break; case pos_setup_instruments::VIEW_RWLOCK: rwlock_class= find_rwlock_class(m_pos.m_index_2); if (rwlock_class) { make_row(rwlock_class); return 0; } break; case pos_setup_instruments::VIEW_COND: cond_class= find_cond_class(m_pos.m_index_2); if (cond_class) { make_row(cond_class); return 0; } break; case pos_setup_instruments::VIEW_THREAD: /* Reserved for WL#4674, PERFORMANCE_SCHEMA Setup For Actors. */ break; case pos_setup_instruments::VIEW_FILE: file_class= find_file_class(m_pos.m_index_2); if (file_class) { make_row(file_class); return 0; } break; } return HA_ERR_RECORD_DELETED; } void table_setup_instruments::make_row(PFS_instr_class *klass) { m_row.m_name= &klass->m_name[0]; m_row.m_name_length= klass->m_name_length; m_row.m_enabled_ptr= &klass->m_enabled; m_row.m_timed_ptr= &klass->m_timed; } int table_setup_instruments::read_row_values(TABLE *table, unsigned char *, Field **fields, bool read_all) { Field *f; DBUG_ASSERT(table->s->null_bytes == 0); /* The row always exist, the instrument classes are static and never disappear. */ for (; (f= *fields) ; fields++) { if (read_all || bitmap_is_set(table->read_set, f->field_index)) { switch(f->field_index) { case 0: /* NAME */ set_field_varchar_utf8(f, m_row.m_name, m_row.m_name_length); break; case 1: /* ENABLED */ set_field_enum(f, (*m_row.m_enabled_ptr) ? ENUM_YES : ENUM_NO); break; case 2: /* TIMED */ if (m_row.m_timed_ptr) set_field_enum(f, (*m_row.m_timed_ptr) ? ENUM_YES : ENUM_NO); else set_field_enum(f, ENUM_NO); break; default: DBUG_ASSERT(false); } } } return 0; } int table_setup_instruments::update_row_values(TABLE *table, const unsigned char *, unsigned char *, Field **fields) { Field *f; enum_yes_no value; for (; (f= *fields) ; fields++) { if (bitmap_is_set(table->write_set, f->field_index)) { switch(f->field_index) { case 0: /* NAME */ my_error(ER_WRONG_PERFSCHEMA_USAGE, MYF(0)); return HA_ERR_WRONG_COMMAND; case 1: /* ENABLED */ value= (enum_yes_no) get_field_enum(f); *m_row.m_enabled_ptr= (value == ENUM_YES) ? true : false; break; case 2: /* TIMED */ if (m_row.m_timed_ptr) { value= (enum_yes_no) get_field_enum(f); *m_row.m_timed_ptr= (value == ENUM_YES) ? true : false; } break; default: DBUG_ASSERT(false); } } } return 0; }