Struct OwnedMessage 

pub struct OwnedMessage { /* private fields */ }

Owned FIX message for storage and cross-thread transfer.

Unlike RawMessage, this struct owns its data and can be safely sent across threads or stored for later use.

Implementations

impl OwnedMessage

pub fn from_raw(raw: &RawMessage<'_>) -> Self

Creates an OwnedMessage from a RawMessage.

Borrow invariant

Field offsets are recovered by subtracting the buffer’s address from each field value’s address, so every FieldRef in raw must borrow from raw.buffer() — which is what a decoder that produced both guarantees. A field pointing anywhere else has no offset in this buffer; rather than computing a wrapped or out-of-range one, it is dropped, and field_count() on the result is correspondingly lower. Such a RawMessage is a construction bug in whatever produced it, not an input this type can repair.

Arguments

• raw - The raw message to copy

pub fn new( buffer: Bytes, msg_type: MsgType, field_offsets: Vec<(u32, Range<usize>)>, ) -> Self

Creates an OwnedMessage from raw bytes.

Arguments

• buffer - The message bytes
• msg_type - The message type
• field_offsets - Field tag and value range pairs

pub fn msg_type(&self) -> &MsgType

Returns the message type.

pub fn as_bytes(&self) -> &[u8]

Returns the message bytes.

pub fn len(&self) -> usize

Returns the message length in bytes.

pub fn is_empty(&self) -> bool

Returns true if the message is empty.

pub fn get_field(&self, tag: u32) -> Option<&[u8]>

Gets a field value by tag.

Arguments

• tag - The field tag number

Returns

The field value bytes, or None if not found or if the stored offset escapes the buffer.

pub fn get_field_str(&self, tag: u32) -> Option<&str>

Gets a field value as a string.

Arguments

• tag - The field tag number

Returns

The field value as a string, or None if not found or invalid UTF-8.

pub fn field_count(&self) -> usize

Returns the number of fields.

pub fn into_bytes(self) -> Bytes

Consumes the message and returns the underlying buffer.

Trait Implementations

impl Clone for OwnedMessage

fn clone(&self) -> OwnedMessage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OwnedMessage

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

Formats the value using the given formatter.