aquatic_udp: start work on announce handler in glommio version

aquatic_udp/src/lib/glommio/handlers.rs

@@ -0,0 +1,49 @@
+use std::net::{IpAddr, Ipv4Addr, Ipv6Addr, SocketAddr};
+
+use glommio::prelude::*;
+use glommio::channels::shared_channel::{SharedReceiver, SharedSender};
+use rand::SeedableRng;
+use rand::prelude::SmallRng;
+
+use crate::config::Config;
+use crate::common::*;
+use crate::common::announce::handle_announce_request;
+
+pub fn run_request_worker(
+    config: Config,
+    request_receiver: SharedReceiver<(AnnounceRequest, SocketAddr)>,
+    response_sender: SharedSender<(AnnounceResponse, SocketAddr)>,
+) {
+    LocalExecutorBuilder::default()
+        .spawn(|| async move {
+            let request_receiver = request_receiver.connect().await;
+            let response_sender = response_sender.connect().await;
+
+            let mut rng = SmallRng::from_entropy();
+
+            let mut torrents_ipv4 = TorrentMap::<Ipv4Addr>::default();
+            let mut torrents_ipv6 = TorrentMap::<Ipv6Addr>::default();
+
+            // Needs to be updated periodically
+            let peer_valid_until = ValidUntil::new(config.cleaning.max_peer_age);
+
+            while let Some((request, addr)) = request_receiver.recv().await {
+                let response = match addr.ip() {
+                    IpAddr::V4(ip) => {
+                        handle_announce_request(&config, &mut rng, &mut torrents_ipv4, request, ip, peer_valid_until)
+                    },
+                    IpAddr::V6(ip) => {
+                        handle_announce_request(&config, &mut rng, &mut torrents_ipv6, request, ip, peer_valid_until)
+                    },
+                };
+
+                if let Err(err) = response_sender.try_send((response, addr)) {
+                    ::log::warn!("response_sender.try_send: {:?}", err);
+                }
+            }
+
+        })
+        .expect("failed to spawn local executor")
+        .join()
+        .unwrap();
+}