Struct BackpressurePolicy 

pub struct BackpressurePolicy {
    pub max_queue_size: usize,
    pub on_overflow: OverflowStrategy,
}

背压策略

用于 InMemoryQueue::with_backpressure，控制队列满时的行为。

• max_queue_size：每 topic 最大队列长度（默认 10000）
• on_overflow：队列满时的溢出处理策略

Fields

max_queue_size: usize

每 topic 最大队列长度（默认 10000）

on_overflow: OverflowStrategy

队列满时的溢出处理策略

Trait Implementations

impl Clone for BackpressurePolicy

fn clone(&self) -> BackpressurePolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BackpressurePolicy

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

Formats the value using the given formatter.

impl Default for BackpressurePolicy

fn default() -> Self

Returns the “default value” for a type.