Struct OperationState 

pub struct OperationState {
    pub sid: u32,
    pub ioid: u32,
    pub command: u8,
    pub pv_name: Option<String>,
    pub field_desc: Option<StructureDesc>,
    pub initialized: bool,
    pub last_seen: Instant,
    pub update_times: VecDeque<Instant>,
    pub recent_messages: VecDeque<String>,
    /* private fields */
}

State for an active operation (GET/PUT/MONITOR etc.)

Fields

sid: u32

Server channel ID this operation is on

ioid: u32

Operation ID

command: u8

Command type (10=GET, 11=PUT, 13=MONITOR, etc.)

pv_name: Option<String>

PV name (resolved from channel state)

field_desc: Option<StructureDesc>

Field description from INIT response (parsed introspection)

initialized: bool

Whether INIT phase completed

last_seen: Instant

Last activity

update_times: VecDeque<Instant>

recent_messages: VecDeque<String>

Implementations

impl OperationState

pub fn new(sid: u32, ioid: u32, command: u8, pv_name: Option<String>) -> Self

pub fn touch(&mut self)

pub fn is_expired(&self, ttl: Duration) -> bool

pub fn set_field_desc(&mut self, field_desc: Option<StructureDesc>)

Attach introspection and cache its measured size.

pub fn field_desc_bytes(&self) -> usize

Heap bytes held by this operation’s introspection, if any.

pub fn is_placeholder(&self) -> bool

True when this operation was auto-created from mid-stream traffic and carries nothing the decoder can use: no completed INIT, no introspection. Shed first under memory pressure.

pub fn heap_bytes(&self) -> usize

Bytes this operation owns on the heap, excluding the struct itself.

Trait Implementations

impl Clone for OperationState

fn clone(&self) -> OperationState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OperationState

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

Formats the value using the given formatter.