Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream

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

1 files changed, 124 insertions, 0 deletions

diff --git a/storage/perfschema/table_tiws_by_index_usage.h b/storage/perfschema/table_tiws_by_index_usage.h
new file mode 100644
index 00000000..cc6ee5eb
--- /dev/null
+++ b/storage/perfschema/table_tiws_by_index_usage.h
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+/* Copyright (c) 2010, 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 02110-1335  USA */
+
+#ifndef TABLE_IO_WAIT_SUMMARY_BY_INDEX_USAGE_H
+#define TABLE_IO_WAIT_SUMMARY_BY_INDEX_USAGE_H
+
+/**
+  @file storage/perfschema/table_tiws_by_index_usage.h
+  Table TABLE_IO_WAIT_SUMMARY_BY_INDEX_USAGE (declarations).
+*/
+
+#include "pfs_column_types.h"
+#include "pfs_engine_table.h"
+#include "pfs_instr_class.h"
+#include "pfs_instr.h"
+#include "table_helper.h"
+
+/**
+  @addtogroup Performance_schema_tables
+  @{
+*/
+
+/**
+  A row of table
+  PERFORMANCE_SCHEMA.TABLE_IO_WAIT_SUMMARY_BY_INDEX.
+*/
+struct row_tiws_by_index_usage
+{
+  /** Column OBJECT_TYPE, SCHEMA_NAME, OBJECT_NAME, INDEX_NAME. */
+  PFS_index_row m_index;
+  /** Columns COUNT/SUM/MIN/AVG/MAX (+_READ, +WRITE). */
+  PFS_table_io_stat_row m_stat;
+};
+
+/**
+  Position of a cursor on
+  PERFORMANCE_SCHEMA.TABLE_IO_WAIT_SUMMARY_BY_INDEX.
+  Index 1 on global_table_share_container (0 based)
+  Index 2 on index (0 based)
+*/
+struct pos_tiws_by_index_usage : public PFS_double_index
+{
+  pos_tiws_by_index_usage()
+    : PFS_double_index(0, 0)
+  {}
+
+  inline void reset(void)
+  {
+    m_index_1= 0;
+    m_index_2= 0;
+  }
+
+  inline void next_table(void)
+  {
+    m_index_1++;
+    m_index_2= 0;
+  }
+};
+
+/** Table PERFORMANCE_SCHEMA.TABLE_IO_WAIT_SUMMARY_BY_INDEX. */
+class table_tiws_by_index_usage : public PFS_engine_table
+{
+public:
+  /** Table share */
+  static PFS_engine_table_share m_share;
+  static PFS_engine_table* create();
+  static int delete_all_rows();
+  static ha_rows get_row_count();
+
+  virtual int rnd_init(bool scan);
+  virtual int rnd_next();
+  virtual int rnd_pos(const void *pos);
+  virtual void reset_position(void);
+
+protected:
+  virtual int read_row_values(TABLE *table,
+                              unsigned char *buf,
+                              Field **fields,
+                              bool read_all);
+
+  table_tiws_by_index_usage();
+
+public:
+  ~table_tiws_by_index_usage()
+  {}
+
+protected:
+  void make_row(PFS_table_share *table_share, uint index);
+
+private:
+  /** Table share lock. */
+  static THR_LOCK m_table_lock;
+
+  /** Current row. */
+  row_tiws_by_index_usage m_row;
+  /** True is the current row exists. */
+  bool m_row_exists;
+  /** Current position. */
+  pos_tiws_by_index_usage m_pos;
+  /** Next position. */
+  pos_tiws_by_index_usage m_next_pos;
+};
+
+/** @} */
+#endif