Gtid_set::Free_intervals_lock Class Reference

Class representing a lock on free_intervals_mutex. More...

Public Member Functions
	Free_intervals_lock (Gtid_set *_gtid_set)
	Create a new lock, but do not acquire it. More...
void	lock_if_not_locked ()
	Lock the lock if it is not already locked. More...
void	unlock_if_locked ()
	Lock the lock if it is locked. More...
	~Free_intervals_lock ()
	Destroy this object and unlock the lock if it is locked. More...

Private Attributes
Gtid_set *	gtid_set
bool	locked

Detailed Description

Class representing a lock on free_intervals_mutex.

This is used by the add_* and remove_* functions. The lock is declared by the top-level function and a pointer to the lock is passed down to low-level functions. If the low-level function decides to access the free intervals list, then it acquires the lock. The lock is then automatically released by the destructor when the top-level function returns.

The lock is not taken if Gtid_set->sid_lock == NULL; such Gtid_sets are assumed to be thread-local.

Constructor & Destructor Documentation

Free_intervals_lock()

Gtid_set::Free_intervals_lock::Free_intervals_lock ( Gtid_set *  _gtid_set )

inline

Create a new lock, but do not acquire it.

~Free_intervals_lock()

Gtid_set::Free_intervals_lock::~Free_intervals_lock ( )

inline

Destroy this object and unlock the lock if it is locked.

Member Function Documentation

lock_if_not_locked()

void Gtid_set::Free_intervals_lock::lock_if_not_locked ( )

inline

Lock the lock if it is not already locked.

unlock_if_locked()

void Gtid_set::Free_intervals_lock::unlock_if_locked ( )

inline

Lock the lock if it is locked.

Member Data Documentation

gtid_set

Gtid_set* Gtid_set::Free_intervals_lock::gtid_set

private

locked

bool Gtid_set::Free_intervals_lock::locked

private

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

• sql/rpl_gtid.h