Struct MessageHeader 

pub struct MessageHeader {
    pub version: Version,
    pub flags: Flags,
    pub message_type: MessageType,
    pub message_size: u32,
}

GIOP Message-Header (Spec §15.4.1).

Fields

version: Version

GIOP-Version (Spec §15.4.1).

flags: Flags

Flags-Octet (in GIOP 1.0 nur byte_order).

message_type: MessageType

Message-Type-Discriminant.

message_size: u32

message_size — Body-Groesse in Bytes (ohne Header).

Implementations

impl MessageHeader

pub const fn new( version: Version, flags: Flags, message_type: MessageType, message_size: u32, ) -> Self

Konstruktor.

pub const fn endianness(&self) -> Endianness

Liefert die Endianness aus dem flags-Octet (Bit 0).

pub fn encode(&self, w: &mut BufferWriter) -> GiopResult<()>

Encodiert den 12-Byte-Header.

Errors

Buffer-Schreibfehler aus dem CDR-Layer.

pub fn decode(bytes: &[u8]) -> GiopResult<(Self, &[u8])>

Decodiert den 12-Byte-Header.

Wichtig: Caller muss den BufferReader mit Endianness::Big erzeugen — die ersten 8 Bytes (Magic+Version+Flags+MsgType) sind endian-frei, aber das message_size-u32 muss anhand des flags-Bytes re-interpretiert werden. Dieser Helper liest das flags-Byte und kehrt die Endianness um, falls noetig.

Errors

• InvalidMagic wenn Bytes 0..4 nicht "GIOP" sind.
• UnsupportedVersion wenn major/minor weder 1.0/1.1/1.2.
• UnknownMessageType wenn der Octet nicht in 0..=7 liegt.
• Buffer-Lesefehler.

Trait Implementations

impl Clone for MessageHeader

fn clone(&self) -> MessageHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MessageHeader

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

Formats the value using the given formatter.

impl PartialEq for MessageHeader

fn eq(&self, other: &MessageHeader) -> 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 MessageHeader

impl Eq for MessageHeader

impl StructuralPartialEq for MessageHeader