/* Copyright (c) 2008, 2010, 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, Fifth Floor, Boston, MA 02110-1335 USA */ /** @file storage/perfschema/table_setup_objects.cc Table SETUP_OBJECTS (implementation). */ #include "my_global.h" #include "my_pthread.h" #include "pfs_instr.h" #include "pfs_column_types.h" #include "pfs_column_values.h" #include "pfs_setup_object.h" #include "table_setup_objects.h" #include "table_helper.h" #include "pfs_global.h" THR_LOCK table_setup_objects::m_table_lock; 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, table_setup_objects::get_row_count, 1000, /* records */ sizeof(PFS_simple_index), &m_table_lock, { C_STRING_WITH_LEN("CREATE TABLE setup_objects(" "OBJECT_TYPE ENUM ('TABLE') not null default 'TABLE'," "OBJECT_SCHEMA VARCHAR(64) default '%'," "OBJECT_NAME VARCHAR(64) not null default '%'," "ENABLED ENUM ('YES', 'NO') not null default 'YES'," "TIMED ENUM ('YES', 'NO') not null default 'YES')") } }; int update_derived_flags() { PFS_thread *thread= PFS_thread::get_current_thread(); if (unlikely(thread == NULL)) return HA_ERR_OUT_OF_MEM; update_table_share_derived_flags(thread); update_table_derived_flags(); return 0; } 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) { int result; Field *f; enum_object_type object_type= OBJECT_TYPE_TABLE; String object_schema_data("%", 1, &my_charset_utf8_bin); String object_name_data("%", 1, &my_charset_utf8_bin); String *object_schema= &object_schema_data; String *object_name= &object_name_data; enum_yes_no enabled_value= ENUM_YES; enum_yes_no timed_value= ENUM_YES; bool enabled= true; bool timed= true; for (; (f= *fields) ; fields++) { if (bitmap_is_set(table->write_set, f->field_index)) { switch(f->field_index) { case 0: /* OBJECT_TYPE */ object_type= (enum_object_type) get_field_enum(f); break; case 1: /* OBJECT_SCHEMA */ object_schema= get_field_varchar_utf8(f, &object_schema_data); break; case 2: /* OBJECT_NAME */ object_name= get_field_varchar_utf8(f, &object_name_data); break; case 3: /* ENABLED */ enabled_value= (enum_yes_no) get_field_enum(f); break; case 4: /* TIMED */ timed_value= (enum_yes_no) get_field_enum(f); break; default: DBUG_ASSERT(false); } } } /* Reject illegal enum values in OBJECT_TYPE */ if (object_type != OBJECT_TYPE_TABLE) return HA_ERR_NO_REFERENCED_ROW; /* Reject illegal enum values in ENABLED */ if ((enabled_value != ENUM_YES) && (enabled_value != ENUM_NO)) return HA_ERR_NO_REFERENCED_ROW; /* Reject illegal enum values in TIMED */ if ((timed_value != ENUM_YES) && (timed_value != ENUM_NO)) return HA_ERR_NO_REFERENCED_ROW; enabled= (enabled_value == ENUM_YES) ? true : false; timed= (timed_value == ENUM_YES) ? true : false; result= insert_setup_object(object_type, object_schema, object_name, enabled, timed); if (result == 0) result= update_derived_flags(); return result; } int table_setup_objects::delete_all_rows(void) { int result= reset_setup_object(); if (result == 0) result= update_derived_flags(); return result; } ha_rows table_setup_objects::get_row_count(void) { return setup_object_count(); } table_setup_objects::table_setup_objects() : PFS_engine_table(&m_share, &m_pos), m_row_exists(false), m_pos(0), m_next_pos(0) {} void table_setup_objects::reset_position(void) { m_pos.m_index= 0; m_next_pos.m_index= 0; } int table_setup_objects::rnd_next(void) { PFS_setup_object *pfs; for (m_pos.set_at(&m_next_pos); m_pos.m_index < setup_object_max; m_pos.next()) { pfs= &setup_object_array[m_pos.m_index]; if (pfs->m_lock.is_populated()) { make_row(pfs); m_next_pos.set_after(&m_pos); return 0; } } return HA_ERR_END_OF_FILE; } int table_setup_objects::rnd_pos(const void *pos) { PFS_setup_object *pfs; set_position(pos); DBUG_ASSERT(m_pos.m_index < setup_object_max); pfs= &setup_object_array[m_pos.m_index]; if (pfs->m_lock.is_populated()) { make_row(pfs); return 0; } return HA_ERR_RECORD_DELETED; } void table_setup_objects::make_row(PFS_setup_object *pfs) { pfs_lock lock; m_row_exists= false; pfs->m_lock.begin_optimistic_lock(&lock); m_row.m_object_type= pfs->get_object_type(); memcpy(m_row.m_schema_name, pfs->m_schema_name, pfs->m_schema_name_length); m_row.m_schema_name_length= pfs->m_schema_name_length; memcpy(m_row.m_object_name, pfs->m_object_name, pfs->m_object_name_length); m_row.m_object_name_length= pfs->m_object_name_length; m_row.m_enabled_ptr= &pfs->m_enabled; m_row.m_timed_ptr= &pfs->m_timed; if (pfs->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_enum(f, m_row.m_object_type); break; case 1: /* OBJECT_SCHEMA */ if (m_row.m_schema_name_length) set_field_varchar_utf8(f, m_row.m_schema_name, m_row.m_schema_name_length); else f->set_null(); break; case 2: /* OBJECT_NAME */ if (m_row.m_object_name_length) set_field_varchar_utf8(f, m_row.m_object_name, m_row.m_object_name_length); else f->set_null(); 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; default: DBUG_ASSERT(false); } } } return 0; } int table_setup_objects::update_row_values(TABLE *table, const unsigned char *, unsigned char *, Field **fields) { int result; 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 */ return HA_ERR_WRONG_COMMAND; case 3: /* ENABLED */ value= (enum_yes_no) get_field_enum(f); /* Reject illegal enum values in ENABLED */ if ((value != ENUM_YES) && (value != ENUM_NO)) return HA_ERR_NO_REFERENCED_ROW; *m_row.m_enabled_ptr= (value == ENUM_YES) ? true : false; break; case 4: /* TIMED */ value= (enum_yes_no) get_field_enum(f); /* Reject illegal enum values in TIMED */ if ((value != ENUM_YES) && (value != ENUM_NO)) return HA_ERR_NO_REFERENCED_ROW; *m_row.m_timed_ptr= (value == ENUM_YES) ? true : false; break; default: DBUG_ASSERT(false); } } } result= update_derived_flags(); return result; } int table_setup_objects::delete_row_values(TABLE *table, const unsigned char *buf, Field **fields) { DBUG_ASSERT(m_row_exists); CHARSET_INFO *cs= &my_charset_utf8_bin; enum_object_type object_type= OBJECT_TYPE_TABLE; String object_schema(m_row.m_schema_name, m_row.m_schema_name_length, cs); String object_name(m_row.m_object_name, m_row.m_object_name_length, cs); int result= delete_setup_object(object_type, &object_schema, &object_name); if (result == 0) result= update_derived_flags(); return result; }