Trx_by_id_with_min Class Reference

#include <trx0sys.h>

Classes
struct	Trx_track_hash

Public Member Functions
By_id const &	by_id () const
trx_id_t	min_id () const
trx_t *	get (trx_id_t trx_id) const
void	insert (trx_t &trx)
void	erase (trx_id_t trx_id)

Private Types
using	By_id = std::unordered_map< trx_id_t, trx_t *, Trx_track_hash >

Private Attributes
By_id	m_by_id
std::atomic< trx_id_t >	m_min_id {0}
	For observers which use Trx_shard::mutex protection: each transaction id in the m_by_id is guaranteed to be at least m_min_id. More...

Member Typedef Documentation

By_id

using Trx_by_id_with_min::By_id = std::unordered_map<trx_id_t, trx_t *, Trx_track_hash>

private

Member Function Documentation

by_id()

By_id const & Trx_by_id_with_min::by_id ( ) const

inline

erase()

void Trx_by_id_with_min::erase ( trx_id_t  trx_id )

inline

get()

trx_t * Trx_by_id_with_min::get ( trx_id_t  trx_id ) const

inline

insert()

void Trx_by_id_with_min::insert ( trx_t &  trx )

inline

min_id()

trx_id_t Trx_by_id_with_min::min_id ( ) const

inline

Member Data Documentation

m_by_id

By_id Trx_by_id_with_min::m_by_id

private

m_min_id

std::atomic<trx_id_t> Trx_by_id_with_min::m_min_id {0}

private

For observers which use Trx_shard::mutex protection: each transaction id in the m_by_id is guaranteed to be at least m_min_id.

Writes are protected with Trx_shard::mutex. Reads can be performed without any latch before accessing m_by_id, but care must be taken to interpret the result -

See also

trx_rw_is_active for details.

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

• storage/innobase/include/trx0sys.h