Struct Header

pub struct Header {
    pub protocol_version: u16,
    pub application_id: u16,
    pub kind: Kind,
    pub flags: Flags,
    pub index: u16,
}

Header encodes information for a given page in the database. Wire encoding and decoding exists in wire::header

Fields

protocol_version: u16

Protocol version

application_id: u16

kind: Kind

Object kind

flags: Flags

Object flags

index: u16

Index is the Page Version for Pages, or the Request ID for messages

Implementations

impl Header

pub fn new(application_id: u16, kind: Kind, index: u16, flags: Flags) -> Header

pub fn protocol_version(&self) -> u16

pub fn application_id(&self) -> u16

pub fn kind(&self) -> Kind

pub fn flags(&self) -> Flags

pub fn index(&self) -> u16

Trait Implementations

impl Clone for Header

fn clone(&self) -> Header

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Header

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

Formats the value using the given formatter.

impl Default for Header

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Header

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T: ImmutableData> From<&WireHeader<T>> for Header

fn from(wh: &WireHeader<T>) -> Header

Build a base::Header object from a WireHeader

impl PartialEq for Header

fn eq(&self, other: &Header) -> 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 Serialize for Header

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Header