extern crate nix;
extern crate libc;
extern crate rand;

mod sys;
mod test_nix_path;
mod test_stat;
mod test_unistd;

mod ports {
    use std::sync::atomic::{AtomicUsize, ATOMIC_USIZE_INIT};
    use std::sync::atomic::Ordering::SeqCst;

    // Helper for getting a unique port for the task run
    // TODO: Reuse ports to not spam the system
    static mut NEXT_PORT: AtomicUsize = ATOMIC_USIZE_INIT;
    const FIRST_PORT: usize = 18080;

    pub fn next_port() -> usize {
        unsafe {
            // If the atomic was never used, set it to the initial port
            NEXT_PORT.compare_and_swap(0, FIRST_PORT, SeqCst);

            // Get and increment the port list
            NEXT_PORT.fetch_add(1, SeqCst)
        }
    }

    pub fn localhost() -> String {
        format!("127.0.0.1:{}", next_port())
    }
}