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- /*
- Copyright (c) 2013, 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_connection_status.cc
- Table replication_connection_status (implementation).
- */
-
- #define HAVE_REPLICATION
-
- #include "my_global.h"
- #include "table_replication_connection_status.h"
- #include "pfs_instr_class.h"
- #include "pfs_instr.h"
- #include "rpl_slave.h"
- #include "rpl_info.h"
- #include "rpl_rli.h"
- #include "rpl_mi.h"
- #include "sql_parse.h"
- #include "rpl_msr.h" /* Multi source replication */
- #include "log.h"
- #include "rpl_group_replication.h"
-
- /*
- Callbacks implementation for GROUP_REPLICATION_CONNECTION_STATUS_CALLBACKS.
- */
- static void set_channel_name(void* const context, const char& value,
- size_t length)
- {
- }
-
- static void set_group_name(void* const context, const char& value,
- size_t length)
- {
- struct st_row_connect_status* row=
- static_cast<struct st_row_connect_status*>(context);
- const size_t max= UUID_LENGTH;
- length= std::min(length, max);
-
- row->group_name_is_null= false;
- memcpy(row->group_name, &value, length);
- }
-
- static void set_source_uuid(void* const context, const char& value,
- size_t length)
- {
- struct st_row_connect_status* row=
- static_cast<struct st_row_connect_status*>(context);
- const size_t max= UUID_LENGTH;
- length= std::min(length, max);
-
- row->source_uuid_is_null= false;
- memcpy(row->source_uuid, &value, length);
- }
-
- static void set_service_state(void* const context, bool value)
- {
- struct st_row_connect_status* row=
- static_cast<struct st_row_connect_status*>(context);
-
- row->service_state= value ? PS_RPL_CONNECT_SERVICE_STATE_YES
- : PS_RPL_CONNECT_SERVICE_STATE_NO;
- }
-
-
- THR_LOCK table_replication_connection_status::m_table_lock;
-
-
- /* Numbers in varchar count utf8 characters. */
- 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("GROUP_NAME")},
- {C_STRING_WITH_LEN("char(36)")},
- {NULL, 0}
- },
- {
- {C_STRING_WITH_LEN("SOURCE_UUID")},
- {C_STRING_WITH_LEN("char(36)")},
- {NULL, 0}
- },
- {
- {C_STRING_WITH_LEN("THREAD_ID")},
- {C_STRING_WITH_LEN("bigint(20)")},
- {NULL, 0}
- },
- {
- {C_STRING_WITH_LEN("SERVICE_STATE")},
- {C_STRING_WITH_LEN("enum('ON','OFF','CONNECTING')")},
- {NULL, 0}
- },
- {
- {C_STRING_WITH_LEN("COUNT_RECEIVED_HEARTBEATS")},
- {C_STRING_WITH_LEN("bigint(20)")},
- {NULL, 0}
- },
- {
- {C_STRING_WITH_LEN("LAST_HEARTBEAT_TIMESTAMP")},
- {C_STRING_WITH_LEN("timestamp")},
- {NULL, 0}
- },
- {
- {C_STRING_WITH_LEN("RECEIVED_TRANSACTION_SET")},
- {C_STRING_WITH_LEN("longtext")},
- {NULL, 0}
- },
- {
- {C_STRING_WITH_LEN("LAST_ERROR_NUMBER")},
- {C_STRING_WITH_LEN("int(11)")},
- {NULL, 0}
- },
- {
- {C_STRING_WITH_LEN("LAST_ERROR_MESSAGE")},
- {C_STRING_WITH_LEN("varchar(1024)")},
- {NULL, 0}
- },
- {
- {C_STRING_WITH_LEN("LAST_ERROR_TIMESTAMP")},
- {C_STRING_WITH_LEN("timestamp")},
- {NULL, 0}
- }
- };
-
- TABLE_FIELD_DEF
- table_replication_connection_status::m_field_def= { 11, field_types };
-
- PFS_engine_table_share
- table_replication_connection_status::m_share=
- {
- { C_STRING_WITH_LEN("replication_connection_status") },
- &pfs_readonly_acl,
- table_replication_connection_status::create,
- NULL, /* write_row */
- NULL, /* delete_all_rows */
- table_replication_connection_status::get_row_count, /* records */
- sizeof(pos_t), /* ref length */
- &m_table_lock,
- &m_field_def,
- false, /* checked */
- false /* perpetual */
- };
-
- PFS_engine_table* table_replication_connection_status::create(void)
- {
- return new table_replication_connection_status();
- }
-
- table_replication_connection_status::table_replication_connection_status()
- : PFS_engine_table(&m_share, &m_pos),
- m_row_exists(false), m_pos(0), m_next_pos(0)
- {
- }
-
- table_replication_connection_status::~table_replication_connection_status()
- {
- }
-
- void table_replication_connection_status::reset_position(void)
- {
- m_pos.m_index= 0;
- m_next_pos.m_index= 0;
- }
-
- ha_rows table_replication_connection_status::get_row_count()
- {
- /*A lock is not needed for an estimate */
- return channel_map.get_max_channels();
- }
-
-
-
- int table_replication_connection_status::rnd_next(void)
- {
- Master_info *mi= NULL;
- channel_map.rdlock();
-
- for (m_pos.set_at(&m_next_pos);
- m_pos.m_index < channel_map.get_max_channels();
- m_pos.next())
- {
- mi= channel_map.get_mi_at_pos(m_pos.m_index);
-
- if (mi && mi->host[0])
- {
- make_row(mi);
- m_next_pos.set_after(&m_pos);
- channel_map.unlock();
- return 0;
- }
- }
-
- channel_map.unlock();
- return HA_ERR_END_OF_FILE;
- }
-
- int table_replication_connection_status::rnd_pos(const void *pos)
- {
- Master_info *mi;
- int res= HA_ERR_RECORD_DELETED;
-
- set_position(pos);
-
- channel_map.rdlock();
-
- if ((mi= channel_map.get_mi_at_pos(m_pos.m_index)))
- {
- make_row(mi);
- res= 0;
- }
-
- channel_map.unlock();
- return res;
- }
-
- void table_replication_connection_status::make_row(Master_info *mi)
- {
- DBUG_ENTER("table_replication_connection_status::make_row");
- m_row_exists= false;
- bool error= false;
-
- /* Default values */
- m_row.group_name_is_null= true;
- m_row.source_uuid_is_null= true;
- m_row.thread_id_is_null= true;
- m_row.service_state= PS_RPL_CONNECT_SERVICE_STATE_NO;
-
- assert(mi != NULL);
- assert(mi->rli != NULL);
-
- mysql_mutex_lock(&mi->data_lock);
- mysql_mutex_lock(&mi->rli->data_lock);
-
- m_row.channel_name_length= mi->get_channel() ? strlen(mi->get_channel()):0;
- memcpy(m_row.channel_name, mi->get_channel(), m_row.channel_name_length);
-
- if (is_group_replication_plugin_loaded() &&
- channel_map.is_group_replication_channel_name(mi->get_channel(), true))
- {
- /*
- Group Replication applier channel.
- Set callbacks on GROUP_REPLICATION_GROUP_MEMBER_STATS_CALLBACKS.
- */
- const GROUP_REPLICATION_CONNECTION_STATUS_CALLBACKS callbacks=
- {
- &m_row,
- &set_channel_name,
- &set_group_name,
- &set_source_uuid,
- &set_service_state,
- };
-
- // Query plugin and let callbacks do their job.
- if (get_group_replication_connection_status_info(callbacks))
- {
- DBUG_PRINT("info", ("Group Replication stats not available!"));
- }
- }
- else
- {
- /* Slave channel. */
- if (mi->master_uuid[0] != 0)
- {
- memcpy(m_row.source_uuid, mi->master_uuid, UUID_LENGTH);
- m_row.source_uuid_is_null= false;
- }
-
- if (mi->slave_running == MYSQL_SLAVE_RUN_CONNECT)
- m_row.service_state= PS_RPL_CONNECT_SERVICE_STATE_YES;
- else
- {
- if (mi->slave_running == MYSQL_SLAVE_RUN_NOT_CONNECT)
- m_row.service_state= PS_RPL_CONNECT_SERVICE_STATE_CONNECTING;
- else
- m_row.service_state= PS_RPL_CONNECT_SERVICE_STATE_NO;
- }
- }
-
- if (mi->slave_running == MYSQL_SLAVE_RUN_CONNECT)
- {
- PSI_thread *psi= thd_get_psi(mi->info_thd);
- PFS_thread *pfs= reinterpret_cast<PFS_thread *> (psi);
- if(pfs)
- {
- m_row.thread_id= pfs->m_thread_internal_id;
- m_row.thread_id_is_null= false;
- }
- }
-
- m_row.count_received_heartbeats= mi->received_heartbeats;
- /*
- Time in Milliseconds since epoch. active_mi->last_heartbeat contains
- number of seconds so we multiply by 1000000.
- */
- m_row.last_heartbeat_timestamp= (ulonglong)mi->last_heartbeat*1000000;
-
- {
- global_sid_lock->wrlock();
- const Gtid_set* io_gtid_set= mi->rli->get_gtid_set();
-
- if ((m_row.received_transaction_set_length=
- io_gtid_set->to_string(&m_row.received_transaction_set)) < 0)
- {
- my_free(m_row.received_transaction_set);
- m_row.received_transaction_set_length= 0;
- global_sid_lock->unlock();
- error= true;
- goto end;
- }
- global_sid_lock->unlock();
- }
-
- /* Errors */
- mysql_mutex_lock(&mi->err_lock);
- mysql_mutex_lock(&mi->rli->err_lock);
- m_row.last_error_number= (unsigned int) mi->last_error().number;
- m_row.last_error_message_length= 0;
- m_row.last_error_timestamp= 0;
-
- /** If error, set error message and timestamp */
- if (m_row.last_error_number)
- {
- char* temp_store= (char*)mi->last_error().message;
- m_row.last_error_message_length= strlen(temp_store);
- memcpy(m_row.last_error_message, temp_store,
- m_row.last_error_message_length);
-
- /*
- Time in millisecond since epoch. active_mi->last_error().skr contains
- number of seconds so we multiply by 1000000. */
- m_row.last_error_timestamp= (ulonglong)mi->last_error().skr*1000000;
- }
- mysql_mutex_unlock(&mi->rli->err_lock);
- mysql_mutex_unlock(&mi->err_lock);
-
- end:
- mysql_mutex_unlock(&mi->rli->data_lock);
- mysql_mutex_unlock(&mi->data_lock);
-
- if (!error)
- m_row_exists= true;
- DBUG_VOID_RETURN;
- }
-
- int table_replication_connection_status::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 == 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: /** channel_name*/
- set_field_char_utf8(f, m_row.channel_name,m_row.channel_name_length);
- break;
- case 1: /** group_name */
- if (m_row.group_name_is_null)
- f->set_null();
- else
- set_field_char_utf8(f, m_row.group_name, UUID_LENGTH);
- break;
- case 2: /** source_uuid */
- if (m_row.source_uuid_is_null)
- f->set_null();
- else
- set_field_char_utf8(f, m_row.source_uuid, UUID_LENGTH);
- break;
- case 3: /** thread_id */
- if(m_row.thread_id_is_null)
- f->set_null();
- else
- set_field_ulonglong(f, m_row.thread_id);
- break;
- case 4: /** service_state */
- set_field_enum(f, m_row.service_state);
- break;
- case 5: /** number of heartbeat events received **/
- set_field_ulonglong(f, m_row.count_received_heartbeats);
- break;
- case 6: /** time of receipt of last heartbeat event **/
- set_field_timestamp(f, m_row.last_heartbeat_timestamp);
- break;
- case 7: /** received_transaction_set */
- set_field_longtext_utf8(f, m_row.received_transaction_set,
- m_row.received_transaction_set_length);
- break;
- case 8: /*last_error_number*/
- set_field_ulong(f, m_row.last_error_number);
- break;
- case 9: /*last_error_message*/
- set_field_varchar_utf8(f, m_row.last_error_message,
- m_row.last_error_message_length);
- break;
- case 10: /*last_error_timestamp*/
- set_field_timestamp(f, m_row.last_error_timestamp);
- break;
- default:
- assert(false);
- }
- }
- }
- m_row.cleanup();
-
- return 0;
- }
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