Tup_fixsize_page Struct Reference

Collaboration diagram for Tup_fixsize_page:

Public Member Functions
	STATIC_CONST (FREE_RECORD=~(Uint32) 0)
	STATIC_CONST (DATA_WORDS=File_formats::NDB_PAGE_SIZE_WORDS-32)
Uint32 *	get_ptr (Uint32 page_idx, Uint32 rec_size)
	Tup_fixsize_page ()
Uint32	alloc_record ()
Uint32	alloc_record (Uint32 page_idx)
Uint32	free_record (Uint32 page_idx)

Public Attributes
struct File_formats::Page_header	m_page_header
Uint32	m_restart_seq
Uint32	page_state
Uint32	next_page
Uint32	prev_page
Uint32	first_cluster_page
Uint32	last_cluster_page
Uint32	next_cluster_page
Uint32	prev_cluster_page
Uint32	frag_page_id
Uint32	physical_page_id
Uint32	free_space
Uint32	next_free_index
Uint32	list_index
Uint32	uncommitted_used_space
Uint32	m_page_no
Uint32	m_file_no
Uint32	m_table_id
Uint32	m_fragment_id
Uint32	m_extent_no
Uint32	m_extent_info_ptr
Uint32	unused_ph [9]
Uint32	m_data [DATA_WORDS]

Detailed Description

Definition at line 61 of file tuppage.hpp.

Constructor & Destructor Documentation

Tup_fixsize_page::Tup_fixsize_page ( )

inline

Alloc record from page return page_idx

Definition at line 100 of file tuppage.hpp.

Member Function Documentation

Uint32 Tup_fixsize_page::alloc_record

(

)

Fix pages maintain a double linked list of free entries

Var pages has a directory where each entry is [ C(1), F(1), L(15), P(15) ] C is chain bit, (is it a full tuple or just chain) F is free bit If true, L is prev free entry (in directory) P is next free entry (in directory) else L is len of entry P is pos of entry

Definition at line 36 of file tuppage.cpp.

---

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

• storage/ndb/src/kernel/blocks/dbtup/tuppage.hpp
• storage/ndb/src/kernel/blocks/dbtup/tuppage.cpp