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//! WASI-specific networking functionality

#![unstable(feature = "wasi_ext", issue = "71213")]

use crate::sys_common::AsInner;
use crate::{io, net};

/// WASI-specific extensions to [`std::net::TcpListener`].
///
/// [`std::net::TcpListener`]: crate::net::TcpListener
pub trait TcpListenerExt {
    /// Accept a socket.
    ///
    /// This corresponds to the `sock_accept` syscall.
    fn sock_accept(&self, flags: u16) -> io::Result<u32>;
}

impl TcpListenerExt for net::TcpListener {
    fn sock_accept(&self, flags: u16) -> io::Result<u32> {
        self.as_inner().as_inner().as_inner().sock_accept(flags)
    }
}