Adding upstream version 1:10.11.6.upstream/1%10.11.6upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 228 insertions, 0 deletions

diff --git a/storage/perfschema/table_replication_applier_status.cc b/storage/perfschema/table_replication_applier_status.cc
new file mode 100644
index 00000000..fda3c927
--- /dev/null
+++ b/storage/perfschema/table_replication_applier_status.cc
@@ -0,0 +1,228 @@
+/*
+      Copyright (c) 2013, 2023, 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_applier_status.cc
+  Table replication_applier_status (implementation).
+*/
+
+//#define HAVE_REPLICATION
+
+#include "my_global.h"
+
+#ifdef HAVE_REPLICATION
+#include "table_replication_applier_status.h"
+#include "pfs_instr_class.h"
+#include "pfs_instr.h"
+#include "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 */
+
+THR_LOCK table_replication_applier_status::m_table_lock;
+
+PFS_engine_table_share_state
+table_replication_applier_status::m_share_state = {
+  false /* m_checked */
+};
+
+PFS_engine_table_share
+table_replication_applier_status::m_share=
+{
+  { C_STRING_WITH_LEN("replication_applier_status") },
+  &pfs_readonly_acl,
+  table_replication_applier_status::create,
+  NULL, /* write_row */
+  NULL, /* delete_all_rows */
+  table_replication_applier_status::get_row_count,    /* records */
+  sizeof(pos_t), /* ref length */
+  &m_table_lock,
+  { C_STRING_WITH_LEN("CREATE TABLE replication_applier_status("
+  "CHANNEL_NAME VARCHAR(256) collate utf8_general_ci not null comment 'The replication channel name.',"
+  "SERVICE_STATE ENUM('ON','OFF') not null comment 'Shows ON when the replication channel''s applier threads are active or idle, OFF means that the applier threads are not active.',"
+  "REMAINING_DELAY INTEGER unsigned comment 'Seconds the replica needs to wait to reach the desired delay from master.',"
+  "COUNT_TRANSACTIONS_RETRIES BIGINT unsigned not null comment 'The number of retries that were made because the replication SQL thread failed to apply a transaction.')") },
+  false, /* m_perpetual */
+  false, /* m_optional */
+  &m_share_state
+};
+
+
+PFS_engine_table* table_replication_applier_status::create(void)
+{
+  return new table_replication_applier_status();
+}
+
+table_replication_applier_status::table_replication_applier_status()
+  : PFS_engine_table(&m_share, &m_pos),
+    m_row_exists(false), m_pos(0), m_next_pos(0)
+{}
+
+table_replication_applier_status::~table_replication_applier_status()
+{}
+
+void table_replication_applier_status::reset_position(void)
+{
+  m_pos.m_index= 0;
+  m_next_pos.m_index= 0;
+}
+
+ha_rows table_replication_applier_status::get_row_count()
+{
+ return master_info_index->master_info_hash.records;
+}
+
+
+int table_replication_applier_status::rnd_next(void)
+{
+  Master_info *mi;
+  mysql_mutex_lock(&LOCK_active_mi);
+
+  for (m_pos.set_at(&m_next_pos);
+       m_pos.m_index < master_info_index->master_info_hash.records;
+       m_pos.next())
+  {
+    mi= (Master_info *)my_hash_element(&master_info_index->master_info_hash, m_pos.m_index);
+
+    if (mi && mi->host[0])
+    {
+      make_row(mi);
+      m_next_pos.set_after(&m_pos);
+      mysql_mutex_unlock(&LOCK_active_mi);
+      return 0;
+    }
+  }
+
+  mysql_mutex_unlock(&LOCK_active_mi);
+  return HA_ERR_END_OF_FILE;
+}
+
+
+int table_replication_applier_status::rnd_pos(const void *pos)
+{
+  Master_info *mi=NULL;
+  int res= HA_ERR_RECORD_DELETED;
+
+  set_position(pos);
+
+  mysql_mutex_lock(&LOCK_active_mi);
+
+  if ((mi= (Master_info *)my_hash_element(&master_info_index->master_info_hash, m_pos.m_index)))
+  {
+    make_row(mi);
+    res= 0;
+  }
+
+  mysql_mutex_unlock(&LOCK_active_mi);
+  return res;
+}
+
+void table_replication_applier_status::make_row(Master_info *mi)
+{
+  char *slave_sql_running_state= NULL;
+
+  m_row_exists= false;
+
+  DBUG_ASSERT(mi != NULL);
+
+  m_row.channel_name_length= static_cast<uint>(mi->connection_name.length);
+  memcpy(m_row.channel_name, mi->connection_name.str, m_row.channel_name_length);
+
+  mysql_mutex_lock(&mi->rli.run_lock);
+
+  slave_sql_running_state= const_cast<char *>
+                           (mi->rli.sql_driver_thd ?
+                            mi->rli.sql_driver_thd->get_proc_info() : "");
+  mysql_mutex_unlock(&mi->rli.run_lock);
+
+  mysql_mutex_lock(&mi->data_lock);
+  mysql_mutex_lock(&mi->rli.data_lock);
+
+  if (mi->rli.slave_running)
+    m_row.service_state= PS_RPL_YES;
+  else
+    m_row.service_state= PS_RPL_NO;
+
+  m_row.remaining_delay= 0;
+  if (slave_sql_running_state == Relay_log_info::state_delaying_string)
+  {
+    time_t t= my_time(0), sql_delay_end= mi->rli.get_sql_delay_end();
+    m_row.remaining_delay= (uint)(t < sql_delay_end ?
+                                      sql_delay_end - t : 0);
+    m_row.remaining_delay_is_set= true;
+  }
+  else
+    m_row.remaining_delay_is_set= false;
+
+  m_row.count_transactions_retries= mi->rli.retried_trans;
+
+  mysql_mutex_unlock(&mi->rli.data_lock);
+  mysql_mutex_unlock(&mi->data_lock);
+
+  m_row_exists= true;
+}
+
+int table_replication_applier_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_varchar_utf8(f, m_row.channel_name, m_row.channel_name_length);
+         break;
+      case 1: /* service_state */
+        set_field_enum(f, m_row.service_state);
+        break;
+      case 2: /* remaining_delay */
+        if (m_row.remaining_delay_is_set)
+          set_field_ulong(f, m_row.remaining_delay);
+        else
+          f->set_null();
+        break;
+      case 3: /* total number of times transactions were retried */
+        set_field_ulonglong(f, m_row.count_transactions_retries);
+        break;
+      default:
+        assert(false);
+      }
+    }
+  }
+  return 0;
+}
+#endif