monoio 0.2.4

A thread per core runtime based on iouring.
Documentation 
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//! Splice related trait and default impl.

use std::future::Future;

use super::as_fd::{AsReadFd, AsWriteFd};
use crate::{driver::op::Op, net::Pipe};

/// Splice data from self to pipe.
pub trait SpliceSource {
    /// Splice data from self to pipe.
    fn splice_to_pipe<'a>(
        &'a mut self,
        pipe: &'a mut Pipe,
        len: u32,
    ) -> impl Future<Output = std::io::Result<u32>>;
}

/// Splice data from self from pipe.
pub trait SpliceDestination {
    /// Splice data from self from pipe.
    fn splice_from_pipe<'a>(
        &'a mut self,
        pipe: &'a mut Pipe,
        len: u32,
    ) -> impl Future<Output = std::io::Result<u32>>;
}

impl<T: AsReadFd> SpliceSource for T {
    #[inline]
    async fn splice_to_pipe<'a>(
        &'a mut self,
        pipe: &'a mut Pipe,
        len: u32,
    ) -> std::io::Result<u32> {
        Op::splice_to_pipe(self.as_reader_fd().as_ref(), &pipe.fd, len)?
            .splice()
            .await
    }
}

impl<T: AsWriteFd> SpliceDestination for T {
    #[inline]
    async fn splice_from_pipe<'a>(
        &'a mut self,
        pipe: &'a mut Pipe,
        len: u32,
    ) -> std::io::Result<u32> {
        Op::splice_from_pipe(&pipe.fd, self.as_writer_fd().as_ref(), len)?
            .splice()
            .await
    }
}