Lock_iter Struct Reference

Iterate over record locks matching <space, page_no, heap_no> More...

#include <lock0priv.h>

Static Public Member Functions
static lock_t *	advance (const RecID &rec_id, lock_t *lock)
	Gets the next record lock on a page. More...
static lock_t *	first (hash_cell_t *list, const RecID &rec_id)
	Gets the first explicit lock request on a record. More...
template<typename F >
static const lock_t *	for_each (const RecID &rec_id, F &&f, hash_table_t *hash_table=lock_sys->rec_hash)
	Iterate over all the locks on a specific row. More...

Detailed Description

Iterate over record locks matching <space, page_no, heap_no>

Member Function Documentation

advance()

static lock_t * Lock_iter::advance ( const RecID &  rec_id, lock_t *  lock  )

inlinestatic

Gets the next record lock on a page.

Parameters

[in]	rec_id	The record ID
[in]	lock	The current lock

Returns

matching lock or nullptr if end of list

first()

static lock_t * Lock_iter::first ( hash_cell_t *  list, const RecID &  rec_id  )

inlinestatic

Gets the first explicit lock request on a record.

Parameters

[in]	list	Record hash
[in]	rec_id	Record ID

Returns

first lock, nullptr if none exists

for_each()

template<typename F >

static const lock_t * Lock_iter::for_each ( const RecID &  rec_id, F &&  f, hash_table_t *  hash_table = lock_sys->rec_hash  )

inlinestatic

Iterate over all the locks on a specific row.

Parameters

[in]	rec_id	Iterate over locks on this row
[in]	f	Function to call for each entry
[in]	hash_table	The hash table to iterate over

Returns

lock where the callback returned false

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

• storage/innobase/include/lock0priv.h