HeapPageHeader Struct Reference

#include <heappage.h>

Public Attributes
PageNum	prev_page
PageNum	next_page
std::uint32_t	free_space_begin
std::uint32_t	free_space_end
std::uint32_t	size
std::uint32_t	capacity

Detailed Description

Struct for the header metadata of HeapPage object. The header is casted on top of the Page data array, from the beginning of the array. Must follow 64bit alignment.

Member Data Documentation

capacity

std::uint32_t HeapPageHeader::capacity

Number of allocated slots.

free_space_begin

std::uint32_t HeapPageHeader::free_space_begin

Offset where free space begins in the Page.

free_space_end

std::uint32_t HeapPageHeader::free_space_end

Offset where free space ends in the Page.

next_page

PageNum HeapPageHeader::next_page

PageNum of next Page in the HeapFile.

prev_page

PageNum HeapPageHeader::prev_page

PageNum of previous Page in the HeapFile.

size

std::uint32_t HeapPageHeader::size

Number of valid/filled slots.

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

• heappage.h