Trait PageBudget 

pub trait PageBudget: Send + Sync {
    // Required method
    fn acquire(&self) -> BoxFuture<'_, Result<(), ApiError>>;
}

每次抓取前取得页面预算；拒绝时不得发出页面请求。

Required Methods

fn acquire(&self) -> BoxFuture<'_, Result<(), ApiError>>

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors