1 files changed, 249 insertions, 0 deletions
diff --git a/storage/perfschema/table_replication_applier_status_by_coordinator.cc b/storage/perfschema/table_replication_applier_status_by_coordinator.cc
new file mode 100644
index 00000000..beb8620b
--- /dev/null
+++ b/storage/perfschema/table_replication_applier_status_by_coordinator.cc
@@ -0,0 +1,249 @@
+/*
+      Copyright (c) 2013, 2018, 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_applier_status_by_cordinator.cc
+  Table replication_applier_status_by_coordinator (implementation).
+*/
+
+//#define HAVE_REPLICATION
+
+#include "my_global.h"
+
+#ifdef HAVE_REPLICATION
+#include "table_replication_applier_status_by_coordinator.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"       /* Multisource replication */
+
+THR_LOCK table_replication_applier_status_by_coordinator::m_table_lock;
+
+PFS_engine_table_share
+table_replication_applier_status_by_coordinator::m_share=
+{
+  { C_STRING_WITH_LEN("replication_applier_status_by_coordinator") },
+  &pfs_readonly_acl,
+  table_replication_applier_status_by_coordinator::create,
+  NULL, /* write_row */
+  NULL, /* delete_all_rows */
+  table_replication_applier_status_by_coordinator::get_row_count,
+  sizeof(pos_t), /* ref length */
+  &m_table_lock,
+  { C_STRING_WITH_LEN("CREATE TABLE replication_applier_status_by_coordinator("
+  "CHANNEL_NAME CHAR(64) collate utf8_general_ci not null,"
+  "THREAD_ID BIGINT UNSIGNED,"
+  "SERVICE_STATE ENUM('ON','OFF') not null,"
+  "LAST_ERROR_NUMBER INTEGER not null,"
+  "LAST_ERROR_MESSAGE VARCHAR(1024) not null,"
+  "LAST_ERROR_TIMESTAMP TIMESTAMP(0) not null)") },
+  false  /* perpetual */
+};
+
+PFS_engine_table* table_replication_applier_status_by_coordinator::create(void)
+{
+  return new table_replication_applier_status_by_coordinator();
+}
+
+table_replication_applier_status_by_coordinator
+  ::table_replication_applier_status_by_coordinator()
+  : PFS_engine_table(&m_share, &m_pos),
+    m_row_exists(false), m_pos(0), m_next_pos(0)
+{}
+
+table_replication_applier_status_by_coordinator
+  ::~table_replication_applier_status_by_coordinator()
+{}
+
+void table_replication_applier_status_by_coordinator::reset_position(void)
+{
+  m_pos.m_index= 0;
+  m_next_pos.m_index= 0;
+}
+
+ha_rows table_replication_applier_status_by_coordinator::get_row_count()
+{
+ return master_info_index->master_info_hash.records;
+}
+
+
+int table_replication_applier_status_by_coordinator::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);
+
+    /*
+      Construct and display SQL Thread's (Coordinator) information in
+      'replication_applier_status_by_coordinator' table only in the case of
+      multi threaded slave mode. Code should do nothing in the case of single
+      threaded slave mode. In case of single threaded slave mode SQL Thread's
+      status will be reported as part of
+      'replication_applier_status_by_worker' table.
+    */
+    if (mi && mi->host[0] && /*mi->rli.get_worker_count() > */ 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_by_coordinator::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_by_coordinator::make_row(Master_info *mi)
+{
+  m_row_exists= false;
+
+  DBUG_ASSERT(mi != NULL);
+
+  mysql_mutex_lock(&mi->rli.data_lock);
+
+  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);
+
+  if (mi->rli.slave_running)
+  {
+    PSI_thread *psi= thd_get_psi(mi->rli.sql_driver_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;
+    }
+    else
+      m_row.thread_id_is_null= true;
+  }
+  else
+    m_row.thread_id_is_null= true;
+
+  if (mi->rli.slave_running)
+    m_row.service_state= PS_RPL_YES;
+  else
+    m_row.service_state= PS_RPL_NO;
+
+  mysql_mutex_lock(&mi->rli.err_lock);
+
+  m_row.last_error_number= (long int) mi->rli.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->rli.last_error().message;
+    m_row.last_error_message_length= static_cast<uint>(strlen(temp_store));
+    memcpy(m_row.last_error_message, temp_store,
+           m_row.last_error_message_length);
+
+    /** time in millisecond since epoch */
+    m_row.last_error_timestamp= 0;//(ulonglong)mi->rli.last_error().skr*1000000;
+  }
+
+  mysql_mutex_unlock(&mi->rli.err_lock);
+  mysql_mutex_unlock(&mi->rli.data_lock);
+
+  m_row_exists= true;
+}
+
+int table_replication_applier_status_by_coordinator
+  ::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: /*thread_id*/
+        if (!m_row.thread_id_is_null)
+          set_field_ulonglong(f, m_row.thread_id);
+        else
+          f->set_null();
+        break;
+      case 2: /*service_state*/
+        set_field_enum(f, m_row.service_state);
+        break;
+      case 3: /*last_error_number*/
+        set_field_ulong(f, m_row.last_error_number);
+        break;
+      case 4: /*last_error_message*/
+        set_field_varchar_utf8(f, m_row.last_error_message,
+                               m_row.last_error_message_length);
+        break;
+      case 5: /*last_error_timestamp*/
+        set_field_timestamp(f, m_row.last_error_timestamp);
+        break;
+      default:
+        DBUG_ASSERT(false);
+      }
+    }
+  }
+  return 0;
+}
+#endif