locksys::Trx_locks_cache Class Reference

An object which can be passed to consecutive calls to rec_lock_has_to_wait(trx, mode, lock, is_supremum, trx_locks_cache) for the same trx and heap_no (which is implicitly the bit common to all lock objects passed) which can be used by this function to cache some partial results. More...

#include <lock0lock.h>

Public Member Functions
bool	has_granted_blocker (const trx_t *trx, const lock_t *waiting_lock)

Private Attributes
bool	m_computed {false}
bool	m_has_s_lock_on_record {false}
const trx_t *	m_cached_trx {}
page_id_t	m_cached_page_id {0, 0}
size_t	m_cached_heap_no {}

Detailed Description

An object which can be passed to consecutive calls to rec_lock_has_to_wait(trx, mode, lock, is_supremum, trx_locks_cache) for the same trx and heap_no (which is implicitly the bit common to all lock objects passed) which can be used by this function to cache some partial results.

Member Function Documentation

has_granted_blocker()

bool locksys::Trx_locks_cache::has_granted_blocker	(	const trx_t *	trx,
		const lock_t *	waiting_lock
	)

Member Data Documentation

m_cached_heap_no

size_t locksys::Trx_locks_cache::m_cached_heap_no {}

private

m_cached_page_id

page_id_t locksys::Trx_locks_cache::m_cached_page_id {0, 0}

private

m_cached_trx

const trx_t* locksys::Trx_locks_cache::m_cached_trx {}

private

m_computed

bool locksys::Trx_locks_cache::m_computed {false}

private

m_has_s_lock_on_record

bool locksys::Trx_locks_cache::m_has_s_lock_on_record {false}

private

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

• storage/innobase/include/lock0lock.h
• storage/innobase/lock/lock0lock.cc