zxfoundation.memory.page_cache.types Module Reference

Data Structures
struct	zxfoundation::memory::page_cache::cache_binding
	Stable identity for a cache mapping pin stored in a VM slot. More...
struct	zxfoundation::memory::page_cache::cache_entry
	Page-cache key and resident frame record. More...
struct	zxfoundation::memory::page_cache::page_lease
	Move-only cache mapping pin held while a PTE is being installed. More...

Enumerations
enum class	cache_entry_state : u8 {   empty = 0 , loading = 1 , ready = 2 , writeback = 3 ,   evicting = 4 }

Typedefs
using	zxfoundation::memory::page_cache::read_page_fn = auto (*)(void* node, u32 index, void* destination) noexcept -> u32
	Read one file page into a physical frame.
using	zxfoundation::memory::page_cache::write_page_fn = auto (*)(void* node, u32 index, const void* source) noexcept -> u32
	Write one dirty file page back to its backing provider.

Functions
auto	clear () noexcept -> void
auto	clear () noexcept -> void
auto	into_binding () &&noexcept -> cache_binding
	operator bool () const noexcept
	operator bool () const noexcept
auto	operator= (const page_lease &)=delete
auto	operator= (page_lease &&other) noexcept -> page_lease &
	page_lease (const page_lease &)=delete
	page_lease (page_lease &&other) noexcept
	page_lease (u64 page_phys, cache_binding page_binding) noexcept

Variables
objects::memory_object_ref	authority {}
cache_binding	binding {}
bool	dirty {false}
void *	file_node {nullptr}
u32	free_next {PAGE_CACHE_SLOT_INVALID}
u32	generation {0U}
u32	generation {0}
u32	index {0}
u32	key_next {PAGE_CACHE_SLOT_INVALID}
u32	mapping_refs {0}
constexpr u32	zxfoundation::memory::page_cache::PAGE_CACHE_INDEX_SLOTS = 8192U
constexpr u32	zxfoundation::memory::page_cache::PAGE_CACHE_SLOT_INVALID = ~0U
constexpr u32	zxfoundation::memory::page_cache::PAGE_CACHE_SLOTS = 4096U
u64	phys {0}
u64	phys {0ULL}
u32	phys_next {PAGE_CACHE_SLOT_INVALID}
u32	slot {PAGE_CACHE_SLOT_INVALID}
cache_entry_state	state {cache_entry_state::empty}
u8	storage_key {0}

Files
file	zxfoundation/memory/page_cache.zcomponent/types.cxxm
	Freestanding page-cache provider contracts.