wg 1.0.1

Golang like WaitGroup implementation for sync/async Rust.
Documentation 
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use std::sync::{
  atomic::{AtomicUsize, Ordering},
  Arc,
};
use tokio::{
  spawn,
  time::{sleep, Duration},
};
use wg::future::WaitGroup;

#[tokio::main]
async fn main() {
  let wg = WaitGroup::new();
  let ctr = Arc::new(AtomicUsize::new(0));

  for _ in 0..5 {
    let ctrx = ctr.clone();
    let t_wg = wg.add(1);
    spawn(async move {
      // mock some time consuming task
      sleep(Duration::from_millis(50)).await;
      ctrx.fetch_add(1, Ordering::Relaxed);

      // mock task is finished
      t_wg.done();
    });
  }

  wg.wait().await;
  assert_eq!(ctr.load(Ordering::Relaxed), 5);
}