// 2019-7-23

//use std::sync::mpsc::channel;
use std::sync::{Mutex, Arc};
extern crate rand;
//use rand::prelude::*;
//use rand::distributions::{Distribution, Uniform};   // 均匀分布
//use std::time::{SystemTime};

extern crate rayon;
//use rayon::prelude::*;




fn main(){
    // 多线程Push vec, 需要Arc包装mutex
    let vecs:Vec<usize> = Vec::new();
    let mt = Arc::new(Mutex::new(vecs));
    // 两个线程 t1, t2 分别push
    let size = 20;
    let m = mt.clone();
    let n = mt.clone();
    let (_, _) = rayon::join(
        || {
            for i in 0..size{
                m.lock().unwrap().push(i as usize);
            }
        },
        || {
            for i in 2*size..3*size{
                n.lock().unwrap().push(i as usize);
            }
        },
    );

    println!("Size = {}", size);
    mt.lock().unwrap()
            .chunks(20)
            .for_each(|x| println!("{:?}", x));



}