/* 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_objects.cc Table SETUP_OBJECTS (implementation). */ #include "mysql_priv.h" #include "pfs_instr_class.h" #include "pfs_column_types.h" #include "pfs_column_values.h" #include "table_setup_objects.h" #include "pfs_global.h" THR_LOCK table_setup_objects::m_table_lock; static const TABLE_FIELD_TYPE field_types[]= { { { C_STRING_WITH_LEN("OBJECT_TYPE") }, { C_STRING_WITH_LEN("varchar(64)") }, { NULL, 0} }, { { C_STRING_WITH_LEN("OBJECT_SCHEMA") }, { C_STRING_WITH_LEN("varchar(64)") }, { NULL, 0} }, { { C_STRING_WITH_LEN("OBJECT_NAME") }, { C_STRING_WITH_LEN("varchar(64)") }, { 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} }, { { C_STRING_WITH_LEN("AGGREGATED") }, { C_STRING_WITH_LEN("enum(\'YES\',\'NO\')") }, { NULL, 0} } }; TABLE_FIELD_DEF table_setup_objects::m_field_def= { 6, field_types }; PFS_engine_table_share table_setup_objects::m_share= { { C_STRING_WITH_LEN("SETUP_OBJECTS") }, &pfs_editable_acl, &table_setup_objects::create, table_setup_objects::write_row, table_setup_objects::delete_all_rows, 1000, /* records */ sizeof(pos_setup_objects), &m_table_lock, &m_field_def, false /* checked */ }; PFS_engine_table* table_setup_objects::create(void) { return new table_setup_objects(); } int table_setup_objects::write_row(TABLE *table, unsigned char *buf, Field **fields) { /* Not implemented */ return HA_ERR_WRONG_COMMAND; } int table_setup_objects::delete_all_rows(void) { /* Not implemented */ return HA_ERR_WRONG_COMMAND; } table_setup_objects::table_setup_objects() : PFS_engine_table(&m_share, &m_pos), m_row_exists(false), m_pos(), m_next_pos() {} void table_setup_objects::reset_position(void) { m_pos.reset(); m_next_pos.reset(); } int table_setup_objects::rnd_next(void) { PFS_table_share *table_share; 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_objects::VIEW_TABLE: for ( ; m_pos.m_index_2 < table_share_max; m_pos.m_index_2++) { table_share= &table_share_array[m_pos.m_index_2]; if (table_share->m_lock.is_populated()) { make_row(table_share); m_next_pos.set_after(&m_pos); return 0; } } break; case pos_setup_objects::VIEW_EVENT: case pos_setup_objects::VIEW_PROCEDURE: case pos_setup_objects::VIEW_FUNCTION: default: break; } } return HA_ERR_END_OF_FILE; } int table_setup_objects::rnd_pos(const void *pos) { PFS_table_share *share; set_position(pos); switch (m_pos.m_index_1) { case pos_setup_objects::VIEW_TABLE: DBUG_ASSERT(m_pos.m_index_2 < table_share_max); share= &table_share_array[m_pos.m_index_2]; if (share->m_lock.is_populated()) { make_row(share); return 0; } break; case pos_setup_objects::VIEW_EVENT: case pos_setup_objects::VIEW_PROCEDURE: case pos_setup_objects::VIEW_FUNCTION: default: break; } return HA_ERR_RECORD_DELETED; } void table_setup_objects::make_row(PFS_table_share *share) { pfs_lock lock; m_row_exists= false; if (share == NULL) return; share->m_lock.begin_optimistic_lock(&lock); m_row.m_schema_name= &share->m_schema_name[0]; m_row.m_schema_name_length= share->m_schema_name_length; m_row.m_object_name= &share->m_table_name[0]; m_row.m_object_name_length= share->m_table_name_length; m_row.m_enabled_ptr= &share->m_enabled; m_row.m_timed_ptr= &share->m_timed; m_row.m_aggregated_ptr= &share->m_aggregated; if (share->m_lock.end_optimistic_lock(&lock)) m_row_exists= true; } int table_setup_objects::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: /* OBJECT_TYPE */ set_field_varchar_utf8(f, "TABLE", 5); break; case 1: /* OBJECT_SCHEMA */ set_field_varchar_utf8(f, m_row.m_schema_name, m_row.m_schema_name_length); break; case 2: /* OBJECT_NAME */ set_field_varchar_utf8(f, m_row.m_object_name, m_row.m_object_name_length); break; case 3: /* ENABLED */ set_field_enum(f, (*m_row.m_enabled_ptr) ? ENUM_YES : ENUM_NO); break; case 4: /* TIMED */ set_field_enum(f, (*m_row.m_timed_ptr) ? ENUM_YES : ENUM_NO); break; case 5: /* AGGREGATED */ set_field_enum(f, (*m_row.m_aggregated_ptr) ? ENUM_YES : ENUM_NO); break; default: DBUG_ASSERT(false); } } } return 0; } int table_setup_objects::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: /* OBJECT_TYPE */ case 1: /* OBJECT_SCHEMA */ case 2: /* OBJECT_NAME */ my_error(ER_WRONG_PERFSCHEMA_USAGE, MYF(0)); return HA_ERR_WRONG_COMMAND; case 3: /* ENABLED */ value= (enum_yes_no) get_field_enum(f); *m_row.m_enabled_ptr= (value == ENUM_YES) ? true : false; break; case 4: /* TIMED */ value= (enum_yes_no) get_field_enum(f); *m_row.m_timed_ptr= (value == ENUM_YES) ? true : false; break; case 5: /* AGGREGATED */ value= (enum_yes_no) get_field_enum(f); *m_row.m_aggregated_ptr= (value == ENUM_YES) ? true : false; break; default: DBUG_ASSERT(false); } } } return 0; }