|
- /*
- Copyright (c) 2014, 2021, Oracle and/or its affiliates.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License, version 2.0,
- as published by the Free Software Foundation.
-
- This program is also distributed with certain software (including
- but not limited to OpenSSL) that is licensed under separate terms,
- as designated in a particular file or component or in included license
- documentation. The authors of MySQL hereby grant you an additional
- permission to link the program and your derivative works with the
- separately licensed software that they have included with MySQL.
-
- 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, version 2.0, 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
-
- /**
- @file storage/perfschema/table_replication_group_member_stats.cc
- Table replication_group_member_stats (implementation).
- */
-
- #define HAVE_REPLICATION
-
- #include "my_global.h"
- #include "table_replication_group_member_stats.h"
- #include "pfs_instr_class.h"
- #include "pfs_instr.h"
- #include "log.h"
- #include "rpl_group_replication.h"
-
- /*
- Callbacks implementation for GROUP_REPLICATION_GROUP_MEMBER_STATS_CALLBACKS.
- */
- static void set_channel_name(void* const context, const char& value,
- size_t length)
- {
- struct st_row_group_member_stats* row=
- static_cast<struct st_row_group_member_stats*>(context);
- const size_t max= CHANNEL_NAME_LENGTH;
- length= std::min(length, max);
-
- row->channel_name_length= length;
- memcpy(row->channel_name, &value, length);
- }
-
- static void set_view_id(void* const context, const char& value, size_t length)
- {
- struct st_row_group_member_stats* row=
- static_cast<struct st_row_group_member_stats*>(context);
- const size_t max= HOSTNAME_LENGTH;
- length= std::min(length, max);
-
- row->view_id_length= length;
- memcpy(row->view_id, &value, length);
- }
-
- static void set_member_id(void* const context, const char& value, size_t length)
- {
- struct st_row_group_member_stats* row=
- static_cast<struct st_row_group_member_stats*>(context);
- const size_t max= UUID_LENGTH;
- length= std::min(length, max);
-
- row->member_id_length= length;
- memcpy(row->member_id, &value, length);
- }
-
- static void set_transactions_committed(void* const context, const char& value,
- size_t length)
- {
- struct st_row_group_member_stats* row=
- static_cast<struct st_row_group_member_stats*>(context);
-
- if (row->trx_committed != NULL)
- my_free(row->trx_committed);
-
- row->trx_committed_length= length;
- row->trx_committed= (char*) my_malloc(PSI_NOT_INSTRUMENTED,
- length,
- MYF(0));
- memcpy(row->trx_committed, &value, length);
- }
-
- static void set_last_conflict_free_transaction(void* const context,
- const char& value, size_t length)
- {
- struct st_row_group_member_stats* row=
- static_cast<struct st_row_group_member_stats*>(context);
- const size_t max= Gtid::MAX_TEXT_LENGTH+1;
- length= std::min(length, max);
-
- row->last_cert_trx_length= length;
- memcpy(row->last_cert_trx, &value, length);
- }
-
- static void set_transactions_in_queue(void* const context,
- unsigned long long int value)
- {
- struct st_row_group_member_stats* row=
- static_cast<struct st_row_group_member_stats*>(context);
- row->trx_in_queue= value;
- }
-
- static void set_transactions_certified(void* const context,
- unsigned long long int value)
- {
- struct st_row_group_member_stats* row=
- static_cast<struct st_row_group_member_stats*>(context);
- row->trx_checked= value;
- }
-
- static void set_transactions_conflicts_detected(void* const context,
- unsigned long long int value)
- {
- struct st_row_group_member_stats* row=
- static_cast<struct st_row_group_member_stats*>(context);
- row->trx_conflicts= value;
- }
-
- static void set_transactions_rows_in_validation(void* const context,
- unsigned long long int value)
- {
- struct st_row_group_member_stats* row=
- static_cast<struct st_row_group_member_stats*>(context);
- row->trx_rows_validating= value;
- }
-
-
- THR_LOCK table_replication_group_member_stats::m_table_lock;
-
- static const TABLE_FIELD_TYPE field_types[]=
- {
- {
- {C_STRING_WITH_LEN("CHANNEL_NAME")},
- {C_STRING_WITH_LEN("char(64)")},
- {NULL, 0}
- },
- {
- {C_STRING_WITH_LEN("VIEW_ID")},
- {C_STRING_WITH_LEN("char(60)")},
- {NULL, 0}
- },
- {
- {C_STRING_WITH_LEN("MEMBER_ID")},
- {C_STRING_WITH_LEN("char(36)")},
- {NULL, 0}
- },
- {
- {C_STRING_WITH_LEN("COUNT_TRANSACTIONS_IN_QUEUE")},
- {C_STRING_WITH_LEN("bigint")},
- {NULL, 0}
- },
- {
- {C_STRING_WITH_LEN("COUNT_TRANSACTIONS_CHECKED")},
- {C_STRING_WITH_LEN("bigint")},
- {NULL, 0}
- },
- {
- {C_STRING_WITH_LEN("COUNT_CONFLICTS_DETECTED")},
- {C_STRING_WITH_LEN("bigint")},
- {NULL, 0}
- },
- {
- {C_STRING_WITH_LEN("COUNT_TRANSACTIONS_ROWS_VALIDATING")},
- {C_STRING_WITH_LEN("bigint")},
- {NULL, 0}
- },
- {
- {C_STRING_WITH_LEN("TRANSACTIONS_COMMITTED_ALL_MEMBERS")},
- {C_STRING_WITH_LEN("longtext")},
- {NULL, 0}
- },
- {
- {C_STRING_WITH_LEN("LAST_CONFLICT_FREE_TRANSACTION")},
- {C_STRING_WITH_LEN("text")},
- {NULL, 0}
- }
- };
-
- TABLE_FIELD_DEF
- table_replication_group_member_stats::m_field_def=
- { 9, field_types };
-
- PFS_engine_table_share
- table_replication_group_member_stats::m_share=
- {
- { C_STRING_WITH_LEN("replication_group_member_stats") },
- &pfs_readonly_acl,
- &table_replication_group_member_stats::create,
- NULL, /* write_row */
- NULL, /* delete_all_rows */
- table_replication_group_member_stats::get_row_count,
- sizeof(PFS_simple_index), /* ref length */
- &m_table_lock,
- &m_field_def,
- false, /* checked */
- false /* perpetual */
- };
-
- PFS_engine_table* table_replication_group_member_stats::create(void)
- {
- return new table_replication_group_member_stats();
- }
-
- table_replication_group_member_stats::table_replication_group_member_stats()
- : PFS_engine_table(&m_share, &m_pos),
- m_row_exists(false), m_pos(0), m_next_pos(0)
- {
- m_row.trx_committed= NULL;
- }
-
- table_replication_group_member_stats::~table_replication_group_member_stats()
- {
- if (m_row.trx_committed != NULL)
- {
- my_free(m_row.trx_committed);
- m_row.trx_committed= NULL;
- }
- }
-
- void table_replication_group_member_stats::reset_position(void)
- {
- m_pos.m_index= 0;
- m_next_pos.m_index= 0;
- }
-
- ha_rows table_replication_group_member_stats::get_row_count()
- {
- uint row_count= 0;
-
- if (is_group_replication_plugin_loaded())
- row_count= 1;
-
- return row_count;
- }
-
- int table_replication_group_member_stats::rnd_next(void)
- {
- if (!is_group_replication_plugin_loaded())
- return HA_ERR_END_OF_FILE;
-
- m_pos.set_at(&m_next_pos);
- if (m_pos.m_index == 0)
- {
- make_row();
- m_next_pos.set_after(&m_pos);
- return 0;
- }
-
- return HA_ERR_END_OF_FILE;
- }
-
- int table_replication_group_member_stats::rnd_pos(const void *pos)
- {
- if (get_row_count() == 0)
- return HA_ERR_END_OF_FILE;
-
- set_position(pos);
- assert(m_pos.m_index < 1);
- make_row();
-
- return 0;
- }
-
- void table_replication_group_member_stats::make_row()
- {
- DBUG_ENTER("table_replication_group_member_stats::make_row");
- // Set default values.
- m_row_exists= false;
- m_row.channel_name_length= 0;
- m_row.view_id_length= 0;
- m_row.member_id_length= 0;
- m_row.trx_committed_length= 0;
- m_row.last_cert_trx_length= 0;
- m_row.trx_in_queue= 0;
- m_row.trx_checked= 0;
- m_row.trx_conflicts= 0;
- m_row.trx_rows_validating= 0;
-
- // Set callbacks on GROUP_REPLICATION_GROUP_MEMBER_STATS_CALLBACKS.
- const GROUP_REPLICATION_GROUP_MEMBER_STATS_CALLBACKS callbacks=
- {
- &m_row,
- &set_channel_name,
- &set_view_id,
- &set_member_id,
- &set_transactions_committed,
- &set_last_conflict_free_transaction,
- &set_transactions_in_queue,
- &set_transactions_certified,
- &set_transactions_conflicts_detected,
- &set_transactions_rows_in_validation,
- };
-
- // Query plugin and let callbacks do their job.
- if (get_group_replication_group_member_stats_info(callbacks))
- {
- DBUG_PRINT("info", ("Group Replication stats not available!"));
- }
- else
- {
- m_row_exists= true;
- }
-
- DBUG_VOID_RETURN;
- }
-
-
- int table_replication_group_member_stats::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;
-
- assert(table->s->null_bytes == 0);
- 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: /** channel_name */
- set_field_char_utf8(f, m_row.channel_name,
- m_row.channel_name_length);
- break;
- case 1: /** view id */
- set_field_char_utf8(f, m_row.view_id, m_row.view_id_length);
- break;
- case 2: /** member_id */
- set_field_char_utf8(f, m_row.member_id, m_row.member_id_length);
- break;
- case 3: /** transaction_in_queue */
- set_field_ulonglong(f, m_row.trx_in_queue);
- break;
- case 4: /** transactions_certified */
- set_field_ulonglong(f, m_row.trx_checked);
- break;
- case 5: /** negatively_certified_transaction */
- set_field_ulonglong(f, m_row.trx_conflicts);
- break;
- case 6: /** certification_db_size */
- set_field_ulonglong(f, m_row.trx_rows_validating);
- break;
- case 7: /** stable_set */
- set_field_longtext_utf8(f, m_row.trx_committed,
- m_row.trx_committed_length);
- break;
- case 8: /** last_certified_transaction */
- set_field_longtext_utf8(f, m_row.last_cert_trx,
- m_row.last_cert_trx_length);
-
- break;
- default:
- assert(false);
- }
- }
- }
- return 0;
- }
|