#include <que0que.h>

Public Attributes
que_common_t	common
	type: QUE_NODE_THR More...

ulint	magic_n
	magic number to catch memory corruption More...

que_node_t *	child
	graph child node More...

que_t *	graph
	graph where this node belongs More...

que_thr_state_t	state
	state of the query thread More...

bool	is_active
	true if the thread has been set to the run state in que_thr_move_to_run_state, but not deactivated in que_thr_dec_reference_count More...

que_node_t *	run_node
	pointer to the node where the subgraph down from this node is currently executed More...

que_node_t *	prev_node
	pointer to the node from which the control came More...

ulint	resource
	resource usage of the query thread thus far More...

ulint	lock_state
	lock state of thread (table or row) More...

struct srv_slot_t *	slot
	The thread slot in the lock_sys->waiting_threads array protected by lock_sys->wait_mutex when writing to it, and also by trx->mutex when changing from null to non-null. More...

	thrs
	list of thread nodes of the fork node More...

	trx_thrs
	lists of threads in wait list of the trx More...

	queue
	list of runnable thread nodes in the server task queue More...

ulint	fk_cascade_depth
	maximum cascading call depth supported for foreign key constraint related delete/updates More...

row_prebuilt_t *	prebuilt
	prebuilt structure processed by the query thread More...

Member Data Documentation

◆ child

que_node_t* que_thr_t::child

graph child node

◆ common

que_common_t que_thr_t::common

type: QUE_NODE_THR

◆ fk_cascade_depth

ulint que_thr_t::fk_cascade_depth

maximum cascading call depth supported for foreign key constraint related delete/updates

◆ graph

que_t* que_thr_t::graph

graph where this node belongs

◆ is_active

bool que_thr_t::is_active

true if the thread has been set to the run state in que_thr_move_to_run_state, but not deactivated in que_thr_dec_reference_count

◆ lock_state

ulint que_thr_t::lock_state

lock state of thread (table or row)

◆ magic_n

ulint que_thr_t::magic_n

magic number to catch memory corruption

◆ prebuilt

row_prebuilt_t* que_thr_t::prebuilt

prebuilt structure processed by the query thread

◆ prev_node

que_node_t* que_thr_t::prev_node

pointer to the node from which the control came

◆ queue

que_thr_t::queue

list of runnable thread nodes in the server task queue

◆ resource

ulint que_thr_t::resource

resource usage of the query thread thus far

◆ run_node

que_node_t* que_thr_t::run_node

pointer to the node where the subgraph down from this node is currently executed

◆ slot

struct srv_slot_t* que_thr_t::slot

The thread slot in the lock_sys->waiting_threads array protected by lock_sys->wait_mutex when writing to it, and also by trx->mutex when changing from null to non-null.

While reading, one can either hold the lock_sys->wait_mutex, or hold the trx->mutex and a proof that no one has woken the trx yet, so the slot is either still null (if trx hadn't yet started the sleep), or already non-null (if it already started sleep), but definitely not changing from null to non-null (as it requires trx->mutex) nor changing from non-null to null (as it happens after wake up).

◆ state

que_thr_state_t que_thr_t::state

state of the query thread

◆ thrs

que_thr_t::thrs

list of thread nodes of the fork node

◆ trx_thrs

que_thr_t::trx_thrs

lists of threads in wait list of the trx

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

storage/innobase/include/que0que.h

Public Attributes