PSI_engine_data_lock_wait_iterator Class Reference

#include <psi_data_lock.h>

Inheritance diagram for PSI_engine_data_lock_wait_iterator:

Public Member Functions
	PSI_engine_data_lock_wait_iterator ()=default
virtual	~PSI_engine_data_lock_wait_iterator ()=default
virtual bool	scan (PSI_server_data_lock_wait_container *container)=0
	Scan for more data lock waits. More...
virtual bool	fetch (PSI_server_data_lock_wait_container *container, const char *requesting_engine_lock_id, size_t requesting_engine_lock_id_length, const char *blocking_engine_lock_id, size_t blocking_engine_lock_id_length)=0
	Fetch a given data lock wait. More...

Constructor & Destructor Documentation

PSI_engine_data_lock_wait_iterator()

PSI_engine_data_lock_wait_iterator::PSI_engine_data_lock_wait_iterator ( )

default

~PSI_engine_data_lock_wait_iterator()

virtual PSI_engine_data_lock_wait_iterator::~PSI_engine_data_lock_wait_iterator ( )

virtualdefault

Member Function Documentation

fetch()

virtual bool PSI_engine_data_lock_wait_iterator::fetch ( PSI_server_data_lock_wait_container *  container, const char *  requesting_engine_lock_id, size_t  requesting_engine_lock_id_length, const char *  blocking_engine_lock_id, size_t  blocking_engine_lock_id_length  )

pure virtual

Fetch a given data lock wait.

Parameters

container	The container to fill
requesting_engine_lock_id	The requesting lock id to search
requesting_engine_lock_id_length	The requesting lock id length
blocking_engine_lock_id	The blocking lock id to search
blocking_engine_lock_id_length	The blocking lock id length

Returns

true if the iterator is done

Implemented in Innodb_data_lock_wait_iterator.

scan()

virtual bool PSI_engine_data_lock_wait_iterator::scan ( PSI_server_data_lock_wait_container *  container )

pure virtual

Scan for more data lock waits.

Parameters

container

The container to fill

Returns

true if the iterator is done

Implemented in Innodb_data_lock_wait_iterator.

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

• include/mysql/psi/psi_data_lock.h