Trait ConcurrentLimitSemaphore 

pub trait ConcurrentLimitSemaphore:
    Send
    + Sync
    + Clone
    + Unpin
    + 'static {
    type Permit: Send + Sync + 'static;

    // Required method
    fn acquire(&self) -> impl Future<Output = Self::Permit> + MaybeSend;
}

Available on crate feature layers-concurrent-limit only.

ConcurrentLimitSemaphore abstracts a semaphore-like concurrency primitive that yields an owned permit released on drop.

Required Associated Types

type Permit: Send + Sync + 'static

The owned permit type associated with the semaphore. Dropping it must release the permit back to the semaphore.

Required Methods

fn acquire(&self) -> impl Future<Output = Self::Permit> + MaybeSend

Acquire an owned permit asynchronously.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl ConcurrentLimitSemaphore for Arc<Semaphore>

type Permit = OwnedSemaphorePermit

async fn acquire(&self) -> <Arc<Semaphore> as ConcurrentLimitSemaphore>::Permit

Implementors