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Diffstat (limited to 'storage/perfschema/table_setup_timers.cc')
| -rw-r--r-- | storage/perfschema/table_setup_timers.cc | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/storage/perfschema/table_setup_timers.cc b/storage/perfschema/table_setup_timers.cc new file mode 100644 index 00000000000..f8b1bfa4fe2 --- /dev/null +++ b/storage/perfschema/table_setup_timers.cc @@ -0,0 +1,183 @@ +/* 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, Suite 500, Boston, MA 02110-1335 USA */ + +/** + @file storage/perfschema/table_setup_timers.cc + Table SETUP_TIMERS (implementation). +*/ + +#include "my_global.h" +#include "my_pthread.h" +#include "table_setup_timers.h" +#include "pfs_column_values.h" +#include "pfs_timer.h" + +#define COUNT_SETUP_TIMERS 1 +static row_setup_timers all_setup_timers_data[COUNT_SETUP_TIMERS]= +{ + { + { C_STRING_WITH_LEN("wait") }, + &wait_timer + } +}; + +THR_LOCK table_setup_timers::m_table_lock; + +static const TABLE_FIELD_TYPE field_types[]= +{ + { + { C_STRING_WITH_LEN("NAME") }, + { C_STRING_WITH_LEN("varchar(64)") }, + { NULL, 0} + }, + { + { C_STRING_WITH_LEN("TIMER_NAME") }, + { C_STRING_WITH_LEN("enum(\'CYCLE\',\'NANOSECOND\',\'MICROSECOND\'," + "\'MILLISECOND\',\'TICK\')") }, + { NULL, 0} + } +}; + +TABLE_FIELD_DEF +table_setup_timers::m_field_def= +{ 2, field_types }; + +PFS_engine_table_share +table_setup_timers::m_share= +{ + { C_STRING_WITH_LEN("setup_timers") }, + &pfs_updatable_acl, + &table_setup_timers::create, + NULL, /* write_row */ + NULL, /* delete_all_rows */ + COUNT_SETUP_TIMERS, + sizeof(PFS_simple_index), + &m_table_lock, + &m_field_def, + false /* checked */ +}; + +PFS_engine_table* table_setup_timers::create(void) +{ + return new table_setup_timers(); +} + +table_setup_timers::table_setup_timers() + : PFS_engine_table(&m_share, &m_pos), + m_row(NULL), m_pos(0), m_next_pos(0) +{} + +void table_setup_timers::reset_position(void) +{ + m_pos.m_index= 0; + m_next_pos.m_index= 0; +} + +int table_setup_timers::rnd_next(void) +{ + int result; + + m_pos.set_at(&m_next_pos); + + if (m_pos.m_index < COUNT_SETUP_TIMERS) + { + m_row= &all_setup_timers_data[m_pos.m_index]; + m_next_pos.set_after(&m_pos); + result= 0; + } + else + { + m_row= NULL; + result= HA_ERR_END_OF_FILE; + } + + return result; +} + +int table_setup_timers::rnd_pos(const void *pos) +{ + set_position(pos); + DBUG_ASSERT(m_pos.m_index < COUNT_SETUP_TIMERS); + m_row= &all_setup_timers_data[m_pos.m_index]; + return 0; +} + +int table_setup_timers::read_row_values(TABLE *table, + unsigned char *, + Field **fields, + bool read_all) +{ + Field *f; + + DBUG_ASSERT(m_row); + + /* Set the null bits */ + DBUG_ASSERT(table->s->null_bytes == 0); + + 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.str, m_row->m_name.length); + break; + case 1: /* TIMER_NAME */ + set_field_enum(f, *(m_row->m_timer_name_ptr)); + break; + default: + DBUG_ASSERT(false); + } + } + } + + return 0; +} + +int table_setup_timers::update_row_values(TABLE *table, + const unsigned char *, + unsigned char *, + Field **fields) +{ + Field *f; + longlong value; + + DBUG_ASSERT(m_row); + + for (; (f= *fields) ; fields++) + { + if (bitmap_is_set(table->write_set, f->field_index)) + { + switch(f->field_index) + { + case 0: /* NAME */ + return HA_ERR_WRONG_COMMAND; + case 1: /* TIMER_NAME */ + value= get_field_enum(f); + if ((value >= FIRST_TIMER_NAME) && (value <= LAST_TIMER_NAME)) + *(m_row->m_timer_name_ptr)= (enum_timer_name) value; + else + return HA_ERR_WRONG_COMMAND; + break; + default: + DBUG_ASSERT(false); + } + } + } + + return 0; +} + |