Type Alias BoxCertificateFuture 

pub type BoxCertificateFuture = Pin<Box<dyn Future<Output = Result<Box<dyn FnOnce(CertificateSelection<'_>) -> Result<(), AsyncSelectCertError>>, AsyncSelectCertError>> + Send>>;

Available on crate features boring and crypto and std only.

Future returned by SslContextBuilder::set_async_certificate_callback. It owns its inputs; it cannot retain a borrow of the TLS connection or request:

use rama_boring::ssl::{AsyncSelectCertError, BoxCertificateFuture, CertificateSelection};
fn retain(selection: &CertificateSelection<'_>) -> BoxCertificateFuture {
    let algorithms = selection.peer_verify_algorithms();
    Box::pin(async move {
        assert!(!algorithms.is_empty());
        Err(AsyncSelectCertError)
    })
}

Aliased Type

#[repr(transparent)]
pub struct BoxCertificateFuture { /* private fields */ }