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    use crate::{backend, io};

    pub use backend::io::poll_fd::{PollFd, PollFlags};

    /// `poll(self.fds, timeout)`
    ///
    /// # References
    ///  - [POSIX]
    ///  - [Linux]
    ///  - [Apple]
    ///  - [Winsock2]
    ///
    /// [POSIX]: https://pubs.opengroup.org/onlinepubs/9699919799/functions/poll.html
    /// [Linux]: https://man7.org/linux/man-pages/man2/poll.2.html
    /// [Apple]: https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man2/poll.2.html
    /// [Winsock2]: https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-wsapoll
    #[inline]
    pub fn poll(fds: &mut [PollFd<'_>], timeout: i32) -> io::Result<usize> {
        backend::io::syscalls::poll(fds, timeout)
    }