Runnable Class Reference

Execute in the context of a non detached MySQL thread. More...

#include <os0thread-create.h>

Inheritance diagram for Runnable:

Public Member Functions
	Runnable (mysql_pfs_key_t pfs_key, PSI_thread_seqnum pfs_seqnum)
	Constructor for the Runnable object. More...
dberr_t	setup_thd (const THD *caller_thd=nullptr) noexcept
	Create and configure the current THD for this Runnable. More...
	~Runnable () noexcept
	Destroy the current THD and deregister the MySQL thread. More...
template<typename F , typename... Args>
dberr_t	operator() (F &&f, Args &&...args)
	Method to execute the callable. More...
Public Member Functions inherited from MySQL_thread
	MySQL_thread (mysql_pfs_key_t pfs_key, PSI_thread_seqnum pfs_seqnum)
	Constructor for the Runnable object. More...

Private Member Functions
THD *	create_current_thd (const THD *caller_thd) noexcept
	Create and configure the THD used by this DDL worker invocation. More...
void	destroy_current_thd (THD *thd) noexcept
	Destroy a THD created by create_current_thd(). More...

Private Attributes
THD *	m_thd {nullptr}

Additional Inherited Members
Protected Member Functions inherited from MySQL_thread
void	preamble ()
	Register the thread with the server. More...
void	epilogue ()
	Deregister the thread. More...
THD *	create_mysql_thd () noexcept
void	destroy_mysql_thd (THD *thd) noexcept
	Destroy a THD instance. More...
Protected Attributes inherited from MySQL_thread
const mysql_pfs_key_t	m_pfs_key
	Performance schema key. More...
PSI_thread_seqnum	m_pfs_seqnum
	Performance schema sequence number. More...

Detailed Description

Execute in the context of a non detached MySQL thread.

Constructor & Destructor Documentation

Runnable()

Runnable::Runnable ( mysql_pfs_key_t  pfs_key, PSI_thread_seqnum  pfs_seqnum  )

inlineexplicit

Constructor for the Runnable object.

Parameters

[in]	pfs_key	Performance schema key
[in]	pfs_seqnum	Performance schema sequence number

~Runnable()

Runnable::~Runnable ( )

inlinenoexcept

Destroy the current THD and deregister the MySQL thread.

Member Function Documentation

create_current_thd()

THD * Runnable::create_current_thd ( const THD *  caller_thd )

inlineprivatenoexcept

Create and configure the THD used by this DDL worker invocation.

destroy_current_thd()

void Runnable::destroy_current_thd ( THD *  thd )

inlineprivatenoexcept

Destroy a THD created by create_current_thd().

operator()()

template<typename F , typename... Args>

dberr_t Runnable::operator() ( F &&  f, Args &&...  args  )

inline

Method to execute the callable.

Parameters

[in]	f	Callable object
[in]	args	Variable number of args to F

Return values

f	return value.

setup_thd()

dberr_t Runnable::setup_thd ( const THD *  caller_thd = nullptr )

inlinenoexcept

Create and configure the current THD for this Runnable.

Parameters

[in]

caller_thd

Source session context to copy, or nullptr.

Member Data Documentation

m_thd

THD* Runnable::m_thd {nullptr}

private

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The documentation for this class was generated from the following file:

• storage/innobase/include/os0thread-create.h