Struct HostBudget 

pub struct HostBudget { /* private fields */ }

Per-host in-flight counter. Cheap clone (Arc).

Implementations

impl HostBudget

pub fn new() -> Self

pub async fn try_acquire(&self, host: &str, cap: u32) -> bool

Returns true and increments the count if host has room under cap; returns false (no change) otherwise. cap = 0 blocks all calls to this host (defensive default).

pub async fn release(&self, host: &str)

Decrement the count for host. No-op if the count is already 0 (mismatched release-without-acquire — defensive, can’t go neg).

pub async fn snapshot(&self) -> HashMap<String, u32>

Snapshot of in-flight counts — for telemetry / tests.

Trait Implementations

impl Clone for HostBudget

fn clone(&self) -> HostBudget

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for HostBudget

fn default() -> HostBudget

Returns the “default value” for a type.