1 files changed, 372 insertions, 0 deletions
diff --git a/storage/perfschema/table_replication_group_member_stats.cc b/storage/perfschema/table_replication_group_member_stats.cc
new file mode 100644
index 00000000..f85a3e3f
--- /dev/null
+++ b/storage/perfschema/table_replication_group_member_stats.cc
@@ -0,0 +1,372 @@
+/*
+  Copyright (c) 2014, 2016, 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_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);
+  DBUG_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;
+
+  DBUG_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:
+        DBUG_ASSERT(false);
+      }
+    }
+  }
+  return 0;
+}