Remove crossbeam dependency

src/wireguard/router/queue.rs

@@ -1,46 +0,0 @@
-use std::sync::atomic::{AtomicUsize, Ordering};
-use std::sync::mpsc::sync_channel;
-use std::sync::mpsc::{Receiver, SyncSender};
-
-use spin::Mutex;
-
-pub struct ParallelQueue<T> {
-    next: AtomicUsize,                 // next round-robin index
-    queues: Vec<Mutex<SyncSender<T>>>, // work queues (1 per thread)
-}
-
-impl<T> ParallelQueue<T> {
-    pub fn new(queues: usize) -> (Vec<Receiver<T>>, Self) {
-        let mut rxs = vec![];
-        let mut txs = vec![];
-
-        for _ in 0..queues {
-            let (tx, rx) = sync_channel(128);
-            txs.push(Mutex::new(tx));
-            rxs.push(rx);
-        }
-
-        (
-            rxs,
-            ParallelQueue {
-                next: AtomicUsize::new(0),
-                queues: txs,
-            },
-        )
-    }
-
-    pub fn send(&self, v: T) {
-        let len = self.queues.len();
-        let idx = self.next.fetch_add(1, Ordering::SeqCst);
-        let que = self.queues[idx % len].lock();
-        que.send(v).unwrap();
-    }
-
-    pub fn close(&self) {
-        for i in 0..self.queues.len() {
-            let (tx, _) = sync_channel(0);
-            let queue = &self.queues[i];
-            *queue.lock() = tx;
-        }
-    }
-}