Struct PendingCancels 

pub struct PendingCancels { /* private fields */ }

Tracks IB order IDs with pending cancel requests.

Used to differentiate user-initiated cancellation from time-based expiration. IBKR sends "Cancelled" status for both cases; this map tracks which cancels were user-initiated via cancel_order().

Implementations

impl PendingCancels

pub fn new() -> Self

pub fn insert(&self, ib_id: i32)

Record a pending cancel request for the given IB order ID.

pub fn remove(&self, ib_id: i32) -> bool

Check if a cancel was user-initiated and remove from tracking.

Returns true if the order ID was in the pending set (user-initiated cancel).

pub fn clear_stale(&self, max_age: Duration) -> usize

Clear entries older than the given duration.

Returns the number of cleared entries. Call periodically to prevent memory leaks from orphaned cancel requests (e.g., network issues).

pub fn len(&self) -> usize

Number of pending cancel requests being tracked.

pub fn is_empty(&self) -> bool

Check if there are no pending cancel requests.

Trait Implementations

impl Clone for PendingCancels

fn clone(&self) -> PendingCancels

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PendingCancels

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

Formats the value using the given formatter.

impl Default for PendingCancels

fn default() -> Self

Returns the “default value” for a type.