mirror of
https://github.com/MariaDB/server.git
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133 lines
3.6 KiB
C++
133 lines
3.6 KiB
C++
/* Copyright (c) 2008, 2023, Oracle and/or its affiliates.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#ifndef TABLE_PROCESSLIST_H
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#define TABLE_PROCESSLIST_H
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/**
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@file storage/perfschema/table_processlist.h
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TABLE THREADS.
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*/
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#include <sys/types.h>
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#include <time.h>
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#include <algorithm>
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// #include "my_hostname.h"
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// #include "my_inttypes.h"
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#include "cursor_by_thread.h"
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#include "pfs_column_types.h"
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struct PFS_thread;
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/**
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@addtogroup performance_schema_tables
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@{
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*/
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/**
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A row of PERFORMANCE_SCHEMA.PROCESSLIST.
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*/
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struct row_processlist {
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/** Column ID. */
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ulonglong m_processlist_id;
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/** Column USER. */
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char m_username[USERNAME_LENGTH];
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/** Length in bytes of @c m_username. */
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uint m_username_length;
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/** Column HOST. */
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char m_hostname[HOST_AND_PORT_LENGTH];
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/** Length in bytes of @c m_hostname. */
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uint m_hostname_length;
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/** Port. */
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uint m_port;
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/** Column DB. */
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char m_dbname[NAME_LEN];
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/** Length in bytes of @c m_dbname. */
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uint m_dbname_length;
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/** Column COMMAND. */
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int m_command;
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/** Column TIME. */
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time_t m_start_time;
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/** Column STATE. */
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const char *m_processlist_state_ptr;
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/** Length in bytes of @c m_processlist_state_ptr. */
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uint m_processlist_state_length;
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/** Column INFO. */
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const char *m_processlist_info_ptr;
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/** Length in bytes of @c m_processlist_info_ptr. */
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uint m_processlist_info_length;
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};
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enum enum_priv_processlist {
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/** User is not allowed to see any data. */
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PROCESSLIST_DENIED,
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/** User does not have the PROCESS_ACL priviledge. */
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PROCESSLIST_USER_ONLY,
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/** User has the PROCESS_ACL priviledge. */
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PROCESSLIST_ALL
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};
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struct row_priv_processlist {
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enum enum_priv_processlist m_auth;
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char m_priv_user[USERNAME_LENGTH];
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size_t m_priv_user_length;
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};
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/** Table PERFORMANCE_SCHEMA.PROCESSLIST. */
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class table_processlist : public cursor_by_thread {
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public:
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static PFS_engine_table_share_state m_share_state;
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/** Table share */
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static PFS_engine_table_share m_share;
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/** Table builder */
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static PFS_engine_table *create();
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protected:
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table_processlist();
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virtual int rnd_init(bool scan);
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virtual int read_row_values(TABLE *table, unsigned char *buf, Field **fields,
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bool read_all);
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int set_access(void);
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public:
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virtual ~table_processlist() {}
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private:
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virtual void make_row(PFS_thread *pfs);
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/** Table share lock. */
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static THR_LOCK m_table_lock;
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/** Fields definition. */
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static TABLE_FIELD_DEF m_field_def;
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/** Current row. */
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row_processlist m_row;
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/** Row privileges. */
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row_priv_processlist m_row_priv;
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/** True if the current row exists. */
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bool m_row_exists;
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};
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/** @} */
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#endif
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