From a175314c3e5827eb193872241446f2f8f5c9d33c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 4 May 2024 20:07:14 +0200 Subject: Adding upstream version 1:10.5.12. Signed-off-by: Daniel Baumann --- .../perfschema/table_replication_group_members.cc | 281 +++++++++++++++++++++ 1 file changed, 281 insertions(+) create mode 100644 storage/perfschema/table_replication_group_members.cc (limited to 'storage/perfschema/table_replication_group_members.cc') diff --git a/storage/perfschema/table_replication_group_members.cc b/storage/perfschema/table_replication_group_members.cc new file mode 100644 index 00000000..5967b98c --- /dev/null +++ b/storage/perfschema/table_replication_group_members.cc @@ -0,0 +1,281 @@ +/* + Copyright (c) 2013, 2015, 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, 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_members.cc + Table replication_group_members (implementation). +*/ + +//#define HAVE_REPLICATION + +#include "my_global.h" +#include "table_replication_group_members.h" +#include "pfs_instr_class.h" +#include "pfs_instr.h" +#include "log.h" +//#include "rpl_group_replication.h" + +/* + Callbacks implementation for GROUP_REPLICATION_GROUP_MEMBERS_CALLBACKS. +*/ +static void set_channel_name(void* const context, const char& value, + size_t length) +{ + struct st_row_group_members* row= + static_cast(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_member_id(void* const context, const char& value, + size_t length) +{ + struct st_row_group_members* row= + static_cast(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_member_host(void* const context, const char& value, + size_t length) +{ + struct st_row_group_members* row= + static_cast(context); + const size_t max= HOSTNAME_LENGTH; + length= std::min(length, max); + + row->member_host_length= length; + memcpy(row->member_host, &value, length); +} + +static void set_member_port(void* const context, unsigned int value) +{ + struct st_row_group_members* row= + static_cast(context); + row->member_port= value; +} + +static void set_member_state(void* const context, const char& value, + size_t length) +{ + struct st_row_group_members* row= + static_cast(context); + const size_t max= NAME_LEN; + length= std::min(length, max); + + row->member_state_length= length; + memcpy(row->member_state, &value, length); +} + + +THR_LOCK table_replication_group_members::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("MEMBER_ID")}, + {C_STRING_WITH_LEN("char(36)")}, + {NULL, 0} + }, + { + {C_STRING_WITH_LEN("MEMBER_HOST")}, + {C_STRING_WITH_LEN("char(60)")}, + {NULL, 0} + }, + { + {C_STRING_WITH_LEN("MEMBER_PORT")}, + {C_STRING_WITH_LEN("int(11)")}, + {NULL, 0} + }, + { + {C_STRING_WITH_LEN("MEMBER_STATE")}, + {C_STRING_WITH_LEN("char(64)")}, + {NULL, 0} + } +}; + +TABLE_FIELD_DEF +table_replication_group_members::m_field_def= +{ 5, field_types }; + +PFS_engine_table_share +table_replication_group_members::m_share= +{ + { C_STRING_WITH_LEN("replication_group_members") }, + &pfs_readonly_acl, + &table_replication_group_members::create, + NULL, /* write_row */ + NULL, /* delete_all_rows */ + table_replication_group_members::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_members::create(void) +{ + return new table_replication_group_members(); +} + +table_replication_group_members::table_replication_group_members() + : PFS_engine_table(&m_share, &m_pos), + m_row_exists(false), m_pos(0), m_next_pos(0) +{} + +table_replication_group_members::~table_replication_group_members() +{} + +void table_replication_group_members::reset_position(void) +{ + m_pos.m_index= 0; + m_next_pos.m_index= 0; +} + +ha_rows table_replication_group_members::get_row_count() +{ + return get_group_replication_members_number_info(); +} + +int table_replication_group_members::rnd_next(void) +{ + if (!is_group_replication_plugin_loaded()) + return HA_ERR_END_OF_FILE; + + for (m_pos.set_at(&m_next_pos); + m_pos.m_index < get_row_count(); + m_pos.next()) + { + make_row(m_pos.m_index); + m_next_pos.set_after(&m_pos); + return 0; + } + + return HA_ERR_END_OF_FILE; +} + +int table_replication_group_members::rnd_pos(const void *pos) +{ + if (!is_group_replication_plugin_loaded()) + return HA_ERR_END_OF_FILE; + + set_position(pos); + DBUG_ASSERT(m_pos.m_index < get_row_count()); + make_row(m_pos.m_index); + + return 0; +} + +void table_replication_group_members::make_row(uint index) +{ + DBUG_ENTER("table_replication_group_members::make_row"); + // Set default values. + m_row_exists= false; + m_row.channel_name_length= 0; + m_row.member_id_length= 0; + m_row.member_host_length= 0; + m_row.member_port= 0; + m_row.member_state_length= 0; + + // Set callbacks on GROUP_REPLICATION_GROUP_MEMBERS_CALLBACKS. + const GROUP_REPLICATION_GROUP_MEMBERS_CALLBACKS callbacks= + { + &m_row, + &set_channel_name, + &set_member_id, + &set_member_host, + &set_member_port, + &set_member_state, + }; + + // Query plugin and let callbacks do their job. + if (get_group_replication_group_members_info(index, callbacks)) + { + DBUG_PRINT("info", ("Group Replication stats not available!")); + } + else + { + m_row_exists= true; + } + + DBUG_VOID_RETURN; +} + + +int table_replication_group_members::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; + + 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: /** channel_name */ + set_field_char_utf8(f, m_row.channel_name, m_row.channel_name_length); + break; + case 1: /** member_id */ + set_field_char_utf8(f, m_row.member_id, m_row.member_id_length); + break; + case 2: /** member_host */ + set_field_char_utf8(f, m_row.member_host, m_row.member_host_length); + break; + case 3: /** member_port */ + if (m_row.member_port > 0) + set_field_ulong(f, m_row.member_port); + else + f->set_null(); + break; + case 4: /** member_state */ + set_field_char_utf8(f, m_row.member_state, m_row.member_state_length); + break; + default: + DBUG_ASSERT(false); + } + } + } + return 0; +} -- cgit v1.2.3