diff options
Diffstat (limited to 'storage/perfschema/table_os_global_by_type.cc')
| -rw-r--r-- | storage/perfschema/table_os_global_by_type.cc | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/storage/perfschema/table_os_global_by_type.cc b/storage/perfschema/table_os_global_by_type.cc new file mode 100644 index 00000000000..82d176cd5b2 --- /dev/null +++ b/storage/perfschema/table_os_global_by_type.cc @@ -0,0 +1,270 @@ +/* Copyright (c) 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, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + +/** + @file storage/perfschema/table_os_global_by_type.cc + Table OBJECTS_SUMMARY_GLOBAL_BY_TYPE (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_os_global_by_type.h" +#include "pfs_global.h" + +THR_LOCK table_os_global_by_type::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("COUNT_STAR") }, + { C_STRING_WITH_LEN("bigint(20)") }, + { NULL, 0} + }, + { + { C_STRING_WITH_LEN("SUM_TIMER_WAIT") }, + { C_STRING_WITH_LEN("bigint(20)") }, + { NULL, 0} + }, + { + { C_STRING_WITH_LEN("MIN_TIMER_WAIT") }, + { C_STRING_WITH_LEN("bigint(20)") }, + { NULL, 0} + }, + { + { C_STRING_WITH_LEN("AVG_TIMER_WAIT") }, + { C_STRING_WITH_LEN("bigint(20)") }, + { NULL, 0} + }, + { + { C_STRING_WITH_LEN("MAX_TIMER_WAIT") }, + { C_STRING_WITH_LEN("bigint(20)") }, + { NULL, 0} + } +}; + +TABLE_FIELD_DEF +table_os_global_by_type::m_field_def= +{ 8, field_types }; + +PFS_engine_table_share +table_os_global_by_type::m_share= +{ + { C_STRING_WITH_LEN("objects_summary_global_by_type") }, + &pfs_truncatable_acl, + table_os_global_by_type::create, + NULL, /* write_row */ + table_os_global_by_type::delete_all_rows, + NULL, /* get_row_count */ + 1000, /* records */ + sizeof(pos_os_global_by_type), + &m_table_lock, + &m_field_def, + false /* checked */ +}; + +PFS_engine_table* +table_os_global_by_type::create(void) +{ + return new table_os_global_by_type(); +} + +int +table_os_global_by_type::delete_all_rows(void) +{ + reset_table_waits_by_table_handle(); + reset_table_waits_by_table(); + return 0; +} + +table_os_global_by_type::table_os_global_by_type() + : PFS_engine_table(&m_share, &m_pos), + m_row_exists(false), m_pos(), m_next_pos() +{} + +void table_os_global_by_type::reset_position(void) +{ + m_pos.reset(); + m_next_pos.reset(); +} + +int table_os_global_by_type::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_os_global_by_type::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; + default: + break; + } + } + + return HA_ERR_END_OF_FILE; +} + +int +table_os_global_by_type::rnd_pos(const void *pos) +{ + PFS_table_share *table_share; + + set_position(pos); + + switch (m_pos.m_index_1) { + case pos_os_global_by_type::VIEW_TABLE: + DBUG_ASSERT(m_pos.m_index_2 < table_share_max); + table_share= &table_share_array[m_pos.m_index_2]; + if (table_share->m_lock.is_populated()) + { + make_row(table_share); + return 0; + } + break; + default: + break; + } + + return HA_ERR_RECORD_DELETED; +} + +void table_os_global_by_type::make_row(PFS_table_share *share) +{ + pfs_lock lock; + PFS_single_stat cumulated_stat; + + m_row_exists= false; + + share->m_lock.begin_optimistic_lock(&lock); + + m_row.m_object_type= share->get_object_type(); + memcpy(m_row.m_schema_name, share->m_schema_name, share->m_schema_name_length); + m_row.m_schema_name_length= share->m_schema_name_length; + memcpy(m_row.m_object_name, share->m_table_name, share->m_table_name_length); + m_row.m_object_name_length= share->m_table_name_length; + share->m_table_stat.sum(& cumulated_stat); + + if (! share->m_lock.end_optimistic_lock(&lock)) + return; + + m_row_exists= true; + + if (share->get_refcount() > 0) + { + /* For all the table handles still opened ... */ + PFS_table *table= table_array; + PFS_table *table_last= table_array + table_max; + for ( ; table < table_last ; table++) + { + if ((table->m_share == share) && (table->m_lock.is_populated())) + { + /* + If the opened table handle is for this table share, + aggregate the table handle statistics. + */ + table->m_table_stat.sum(& cumulated_stat); + } + } + } + + time_normalizer *normalizer= time_normalizer::get(wait_timer); + m_row.m_stat.set(normalizer, &cumulated_stat); +} + +int table_os_global_by_type::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_object_type(f, m_row.m_object_type); + break; + case 1: /* SCHEMA_NAME */ + 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: /* COUNT */ + set_field_ulonglong(f, m_row.m_stat.m_count); + break; + case 4: /* SUM */ + set_field_ulonglong(f, m_row.m_stat.m_sum); + break; + case 5: /* MIN */ + set_field_ulonglong(f, m_row.m_stat.m_min); + break; + case 6: /* AVG */ + set_field_ulonglong(f, m_row.m_stat.m_avg); + break; + case 7: /* MAX */ + set_field_ulonglong(f, m_row.m_stat.m_max); + break; + default: + DBUG_ASSERT(false); + } + } + } + + return 0; +} + |