Struct HeaderView 

pub struct HeaderView<'a>(/* private fields */);

Zero-copy view into a 16-byte SOME/IP header in a buffer.

Implementations

impl<'a> HeaderView<'a>

pub fn parse(buf: &'a [u8]) -> Result<(Self, &'a [u8]), Error>

Parse and validate a SOME/IP header from the beginning of buf. Returns (view, remaining_bytes) on success.

Errors

Returns an error if buf is shorter than 16 bytes, the protocol version is not 0x01, the message type byte is unrecognized, or the return code is invalid.

Panics

Cannot panic — the expect is guarded by a length check above it.

This is a thin wrapper over the Decode impl, which is the single source of decode logic for this type.

pub fn message_id(&self) -> MessageId

Returns the message ID (service ID + method ID).

pub fn length(&self) -> u32

Returns the length field (payload size + 8).

pub fn request_id(&self) -> u32

Returns the request ID (client ID + session ID).

pub fn payload_size(&self) -> usize

Returns the payload size in bytes (length - 8).

pub const fn upper_header_bytes(&self) -> [u8; 8]

Returns header bytes 8..16: the request ID, protocol and interface versions, message type, and return code. E2E Profile 5 with-header CRC covers these bytes.

pub fn protocol_version(&self) -> u8

Returns the protocol version.

pub fn interface_version(&self) -> u8

Returns the interface version.

pub fn message_type(&self) -> MessageTypeField

Returns the message type field.

Panics

Cannot panic — the value is validated during Self::parse.

pub fn return_code(&self) -> ReturnCode

Returns the return code.

Panics

Cannot panic — the value is validated during Self::parse.

pub fn is_sd(&self) -> bool

Returns true if this is a SOME/IP-SD message.

pub fn to_owned(&self) -> Header

Copies the view into an owned Header.

Trait Implementations

impl<'a> Clone for HeaderView<'a>

fn clone(&self) -> HeaderView<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for HeaderView<'a>

impl<'a> Debug for HeaderView<'a>

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

Formats the value using the given formatter.

impl<'a> Decode<'a> for HeaderView<'a>

fn decode(buf: &'a [u8]) -> Result<(Self, &'a [u8]), Error>

Decode and validate a SOME/IP header from the front of buf.

Returns (view, remaining_bytes) on success.

Errors

Returns an error if buf is shorter than 16 bytes, the protocol version is not 0x01, the message type byte is unrecognized, or the return code is invalid.

Panics

Cannot panic — the expect is guarded by a length check above it.

type Error = Error

Per-implementation error; constructible from Incomplete and TrailingBytes so the fixed-width leaf read helpers (read_u8, read_u16_be, read_array, …) and the decode_exact default lift through ?.

fn decode_exact(buf: &'a [u8]) -> Result<Self, Self::Error>

Decode requiring the ENTIRE buffer to be consumed. Use this at a message boundary where the length is already known.