Struct SourceInstanceRef 

pub struct SourceInstanceRef {
    pub mx_source_id: String,
    pub worker_id: String,
    pub model_name: String,
    pub worker_rank: u32,
    pub accelerator: String,
    pub updated_at: i64,
    pub training_step: Option<u64>,
    pub layout_signature: Option<String>,
}

Reference to one worker in one available source instance (lightweight — no tensor metadata). One entry is emitted per worker, so clients can match on worker_rank without calling GetMetadata.

Fields

mx_source_id: String

Computed 16-char hex source ID

worker_id: String

Unique identifier for this running instance

model_name: String

Human-readable model name

worker_rank: u32

Global rank of this worker within the instance. Clients filter on this field to find a peer with a matching rank.

accelerator: String

Runtime accelerator family for compatibility filtering (e.g. “cuda”). Lets clients drop incompatible sources before GetMetadata and before the retry-cap slice. Empty means unknown (treated as compatible for rolling upgrades and sources that predate this field).

updated_at: i64

Timestamp of the worker’s last status update (unix milliseconds). Zero means unknown for records created by older servers/backends.

training_step: Option<u64>

Training step/version lifted from SourceIdentity.extra_parameters. Presence matters: an absent value must not be interpreted as step zero.

layout_signature: Option<String>

Stable digest of topology, tensor registry, and translation metadata. Unlike training_step this remains constant across versions and changes whenever cached layout metadata must be rebuilt.

Implementations

impl SourceInstanceRef

pub fn training_step(&self) -> u64

Returns the value of training_step, or the default value if training_step is unset.

pub fn layout_signature(&self) -> &str

Returns the value of layout_signature, or the default value if layout_signature is unset.

Trait Implementations

impl Clone for SourceInstanceRef

fn clone(&self) -> SourceInstanceRef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SourceInstanceRef

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

Formats the value using the given formatter.

impl Default for SourceInstanceRef

fn default() -> Self

Returns the “default value” for a type.

impl Message for SourceInstanceRef

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for SourceInstanceRef

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SourceInstanceRef