perfschema 5.6.10 initial commit.

10.0 files

storage/perfschema/table_threads.h

@@ -0,0 +1,115 @@
+/* Copyright (c) 2008, 2011, 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 as published by
+  the Free Software Foundation; version 2 of the License.
+
+  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 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,
+  51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
+
+#ifndef TABLE_THREADS_H
+#define TABLE_THREADS_H
+
+#include "pfs_column_types.h"
+#include "cursor_by_thread.h"
+
+struct PFS_thread;
+
+/**
+  \addtogroup Performance_schema_tables
+  @{
+*/
+
+/**
+  A row of PERFORMANCE_SCHEMA.THREADS.
+*/
+struct row_threads
+{
+  /** Column THREAD_ID. */
+  ulonglong m_thread_internal_id;
+  /** Column PROCESSLIST_ID. */
+  ulonglong m_processlist_id;
+  /** Column NAME. */
+  const char* m_name;
+  /** Length in bytes of @c m_name. */
+  uint m_name_length;
+  /** Column PROCESSLIST_USER. */
+  char m_username[USERNAME_LENGTH];
+  /** Length in bytes of @c m_username. */
+  uint m_username_length;
+  /** Column PROCESSLIST_HOST. */
+  char m_hostname[HOSTNAME_LENGTH];
+  /** Length in bytes of @c m_hostname. */
+  uint m_hostname_length;
+  /** Column PROCESSLIST_DB. */
+  char m_dbname[NAME_LEN];
+  /** Length in bytes of @c m_dbname. */
+  uint m_dbname_length;
+  /** Column PROCESSLIST_COMMAND. */
+  int m_command;
+  /** Column PROCESSLIST_TIME. */
+  time_t m_start_time;
+  /** Column PROCESSLIST_STATE. */
+  const char* m_processlist_state_ptr;
+  /** Length in bytes of @c m_processlist_state_ptr. */
+  uint m_processlist_state_length;
+  /** Column PROCESSLIST_INFO. */
+  const char* m_processlist_info_ptr;
+  /** Length in bytes of @c m_processlist_info_ptr. */
+  uint m_processlist_info_length;
+  /** Column INSTRUMENTED. */
+  bool *m_enabled_ptr;
+  /** Column PARENT_THREAD_ID. */
+  ulonglong m_parent_thread_internal_id;
+};
+
+/** Table PERFORMANCE_SCHEMA.THREADS. */
+class table_threads : public cursor_by_thread
+{
+public:
+  /** Table share */
+  static PFS_engine_table_share m_share;
+  /** Table builder */
+  static PFS_engine_table* create();
+
+protected:
+  virtual int read_row_values(TABLE *table,
+                              unsigned char *buf,
+                              Field **fields,
+                              bool read_all);
+
+
+  virtual int update_row_values(TABLE *table,
+                                const unsigned char *old_buf,
+                                unsigned char *new_buf,
+                                Field **fields);
+
+protected:
+  table_threads();
+
+public:
+  ~table_threads()
+  {}
+
+private:
+  virtual void make_row(PFS_thread *pfs);
+
+  /** Table share lock. */
+  static THR_LOCK m_table_lock;
+  /** Fields definition. */
+  static TABLE_FIELD_DEF m_field_def;
+
+  /** Current row. */
+  row_threads m_row;
+  /** True if the current row exists. */
+  bool m_row_exists;
+};
+
+/** @} */
+#endif