TrxInInnoDB Class Reference

Track if a transaction is executing inside InnoDB code. More...

#include <trx0trx.h>

Public Member Functions
	TrxInInnoDB (trx_t *trx, bool disable=false)
	~TrxInInnoDB ()
	Destructor. More...
bool	is_aborted () const
bool	is_rollback_disabled () const

Static Public Member Functions
static bool	is_aborted (const trx_t *trx)
static void	begin_stmt (trx_t *trx)
	Start statement requested for transaction. More...
static void	end_stmt (trx_t *trx)
	Note an end statement for transaction. More...
static bool	is_async_rollback (const trx_t *trx)

Static Private Member Functions
static void	enter (trx_t *trx, bool disable)
	Note that we have crossed into InnoDB code. More...
static void	exit (trx_t *trx)
	Note that we are exiting InnoDB code. More...
static bool	is_forced_rollback (const trx_t *trx)
static void	wait (const trx_t *trx)
	Wait for the asynchronous rollback to complete, if it is in progress. More...
static bool	is_started (const trx_t *trx)

Private Attributes
trx_t *	m_trx
	Transaction instance crossing the handler boundary from the Server. More...

Detailed Description

Track if a transaction is executing inside InnoDB code.

It acts like a gate between the Server and InnoDB.

Constructor & Destructor Documentation

TrxInInnoDB()

TrxInInnoDB::TrxInInnoDB ( trx_t *  trx, bool  disable = false  )

inline

Parameters

[in,out]	trx	Transaction entering InnoDB via the handler
[in]	disable	true if called from COMMIT/ROLLBACK method

~TrxInInnoDB()

TrxInInnoDB::~TrxInInnoDB ( )

inline

Destructor.

Member Function Documentation

begin_stmt()

static void TrxInInnoDB::begin_stmt ( trx_t *  trx )

inlinestatic

Start statement requested for transaction.

Parameters

[in,out]

trx

Transaction at the start of a SQL statement

end_stmt()

static void TrxInInnoDB::end_stmt ( trx_t *  trx )

inlinestatic

Note an end statement for transaction.

Parameters

[in,out]

trx

Transaction at end of a SQL statement

enter()

static void TrxInInnoDB::enter ( trx_t *  trx, bool  disable  )

inlinestaticprivate

Note that we have crossed into InnoDB code.

Parameters

[in]	trx	transaction
[in]	disable	true if called from COMMIT/ROLLBACK method

exit()

static void TrxInInnoDB::exit ( trx_t *  trx )

inlinestaticprivate

Note that we are exiting InnoDB code.

is_aborted() [1/2]

bool TrxInInnoDB::is_aborted ( ) const

inline

Returns

true if the transaction has been marked for asynchronous rollback

is_aborted() [2/2]

static bool TrxInInnoDB::is_aborted ( const trx_t *  trx )

inlinestatic

Returns

true if the transaction has been marked for asynchronous rollback

is_async_rollback()

static bool TrxInInnoDB::is_async_rollback ( const trx_t *  trx )

inlinestatic

Returns

true if the rollback is being initiated by the thread that marked the transaction for asynchronous rollback

is_forced_rollback()

static bool TrxInInnoDB::is_forced_rollback ( const trx_t *  trx )

inlinestaticprivate

is_rollback_disabled()

bool TrxInInnoDB::is_rollback_disabled ( ) const

inline

Returns

true if the transaction can't be rolled back asynchronously

is_started()

static bool TrxInInnoDB::is_started ( const trx_t *  trx )

inlinestaticprivate

Returns

true if transaction is started

wait()

static void TrxInInnoDB::wait ( const trx_t *  trx )

inlinestaticprivate

Wait for the asynchronous rollback to complete, if it is in progress.

Member Data Documentation

m_trx

trx_t* TrxInInnoDB::m_trx

private

Transaction instance crossing the handler boundary from the Server.

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

• storage/innobase/include/trx0trx.h