Sync_point Class Reference

For handling sync points in child threads spawned by a foreground thread. More...

#include <sync0debug.h>

Public Member Functions
	Sync_point (const THD *thd) noexcept
	Constructor. More...
	Sync_point (const Sync_point &)=default
Sync_point &	operator= (const Sync_point &)=default
	~Sync_point ()=default
	Destructor. More...

Static Public Member Functions
static void	add (const THD *thd, const std::string &target) noexcept
	Add a target to the list of sync points, nop for duplicates. More...
static bool	enabled (const THD *thd, const std::string &target) noexcept
	Check if a target is enabled. More...
static bool	enabled (const std::string &target) noexcept
	Check if a target is enabled. More...
static void	erase (const THD *thd, const std::string &target) noexcept
	Clear the named target. More...

Private Types
using	Targets = std::vector< std::string, ut::allocator< std::string > >
using	Sync_points = std::vector< Sync_point, ut::allocator< Sync_point > >

Private Attributes
const THD *	m_thd {}
	Server connection/session context. More...
Targets	m_targets {}
	List of enabled targets. More...

Static Private Attributes
static std::mutex	s_mutex {}
	Mutex protecting access to Sync_point infrastructure. More...
static Sync_points	s_sync_points {}
	Sync points. More...

Detailed Description

For handling sync points in child threads spawned by a foreground thread.

Member Typedef Documentation

Sync_points

using Sync_point::Sync_points = std::vector<Sync_point, ut::allocator<Sync_point> >

private

Targets

using Sync_point::Targets = std::vector<std::string, ut::allocator<std::string> >

private

Constructor & Destructor Documentation

Sync_point() [1/2]

Sync_point::Sync_point ( const THD *  thd )

inlineexplicitnoexcept

Constructor.

Parameters

[in,out]

thd

Server connection/session context.

Sync_point() [2/2]

Sync_point::Sync_point ( const Sync_point &  )

default

~Sync_point()

Sync_point::~Sync_point ( )

default

Destructor.

Member Function Documentation

add()

void Sync_point::add ( const THD *  thd, const std::string &  target  )

staticnoexcept

Add a target to the list of sync points, nop for duplicates.

Parameters

[in]	thd	Server connection/session context.
[in]	target	Target to add.

enabled() [1/2]

bool Sync_point::enabled ( const std::string &  target )

staticnoexcept

Check if a target is enabled.

Disable it if found.

Parameters

[in]

target

Check if target is enabled.

Returns

true if was enabled.

enabled() [2/2]

bool Sync_point::enabled ( const THD *  thd, const std::string &  target  )

staticnoexcept

Check if a target is enabled.

Disable it if found.

Parameters

[in]	thd	Server connection/session context.
[in]	target	Check if target is enabled.

Returns

true if was enabled.

erase()

void Sync_point::erase ( const THD *  thd, const std::string &  target  )

staticnoexcept

Clear the named target.

Parameters

[in]	thd	Server connection/session context.
[in]	target	Check if target is enabled.

operator=()

Sync_point & Sync_point::operator= ( const Sync_point &  )

default

Member Data Documentation

m_targets

Targets Sync_point::m_targets {}

private

List of enabled targets.

m_thd

const THD* Sync_point::m_thd {}

private

Server connection/session context.

s_mutex

std::mutex Sync_point::s_mutex {}

staticprivate

Mutex protecting access to Sync_point infrastructure.

s_sync_points

Sync_point::Sync_points Sync_point::s_sync_points {}

staticprivate

Sync points.

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

• storage/innobase/include/sync0debug.h
• storage/innobase/sync/sync0debug.cc