Function dup_into_stdio

crates/stdlib/src/posixsubprocess.rs:314–325

(fd: MaybeFd, io_fd: i32, dup2_stdio: F)

    }

    fn dup_into_stdio<F>(fd: MaybeFd, io_fd: i32, dup2_stdio: F) -> nix::Result<()>
    where
        F: Fn(Fd) -> nix::Result<()>,
    {
        match fd {
            MaybeFd::Valid(fd) if fd.as_raw_fd() == io_fd => {
                posix::set_inheritable(fd.as_fd(), true)
            }
            MaybeFd::Valid(fd) => dup2_stdio(fd),
            MaybeFd::Invalid => Ok(()),
        }
    }
    dup_into_stdio(args.p2cread, 0, unistd::dup2_stdin)?;
    dup_into_stdio(c2pwrite, 1, unistd::dup2_stdout)?;
    dup_into_stdio(errwrite, 2, unistd::dup2_stderr)?;