Struct PageSize 

pub struct PageSize(/* private fields */);

Database page size in bytes.

Must be a power of two between 512 and 65536 (inclusive). The default is 4096 bytes, matching SQLite’s SQLITE_DEFAULT_PAGE_SIZE.

Implementations

impl PageSize

pub const MIN: Self

Minimum page size: 512 bytes.

pub const DEFAULT: Self

Default page size: 4096 bytes.

pub const MAX: Self

Maximum page size: 65536 bytes.

pub const fn new(size: u32) -> Option<Self>

Create a new page size, validating that it is a power of two in the range [512, 65536].

pub const fn get(self) -> u32

Get the raw page size in bytes.

pub const fn as_usize(self) -> usize

Get the page size as a usize.

pub const fn usable(self, reserved: u8) -> u32

The usable size of a page (total size minus reserved bytes at the end).

reserved is the number of bytes reserved at the end of each page for extensions (typically 0, stored at byte offset 20 of the header).

Trait Implementations

impl Clone for PageSize

fn clone(&self) -> PageSize

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PageSize

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for PageSize

fn default() -> Self

Returns the “default value” for a type.

impl Display for PageSize

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for PageSize

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for PageSize

fn eq(&self, other: &PageSize) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for PageSize

impl Eq for PageSize

impl StructuralPartialEq for PageSize