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 type cast * 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 (size of the slot directory).

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/used slots.

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

• heappage.h