From 05c4e2b5770133228daff7c262945f078a4e4456 Mon Sep 17 00:00:00 2001
From: Sam Anthony <sam@samanthony.xyz>
Date: Sat, 16 Nov 2024 14:28:13 -0500
Subject: ReliableMulticast.close()

---
 src/main/java/derms/net/rmulticast/Receive.java | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

(limited to 'src/main/java/derms/net/rmulticast/Receive.java')

diff --git a/src/main/java/derms/net/rmulticast/Receive.java b/src/main/java/derms/net/rmulticast/Receive.java
index 922f357..bf583dd 100644
--- a/src/main/java/derms/net/rmulticast/Receive.java
+++ b/src/main/java/derms/net/rmulticast/Receive.java
@@ -6,6 +6,9 @@ import derms.net.Packet;
 import java.io.IOException;
 import java.net.DatagramPacket;
 import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.SocketTimeoutException;
+import java.time.Duration;
 import java.util.NoSuchElementException;
 import java.util.Set;
 import java.util.concurrent.BlockingQueue;
@@ -13,6 +16,7 @@ import java.util.logging.Logger;
 
 class Receive<T extends MessagePayload> implements Runnable {
     private static final int bufSize = 8192;
+    private static final Duration sockTimeout = Duration.ofMillis(500);
 
     private final ConcurrentMulticastSocket inSock;
     private final Set<MessageID> acks;
@@ -23,8 +27,11 @@ class Receive<T extends MessagePayload> implements Runnable {
     private final BlockingQueue<Message<T>> delivered;
     private final Logger log;
 
-    Receive(ConcurrentMulticastSocket inSock, Set<MessageID> acks, Set<MessageID> nacks, ReceivedSet<T> received, BlockingQueue<Message<T>> retransmissions, Set<InetAddress> groupMembers, BlockingQueue<Message<T>> delivered) {
-        this.inSock = inSock;
+    Receive(InetSocketAddress group, Set<MessageID> acks, Set<MessageID> nacks, ReceivedSet<T> received, BlockingQueue<Message<T>> retransmissions, Set<InetAddress> groupMembers, BlockingQueue<Message<T>> delivered) throws IOException {
+        this.inSock = new ConcurrentMulticastSocket(group.getPort());
+        this.inSock.joinGroup(group.getAddress());
+        this.inSock.setSoTimeout(sockTimeout);
+
         this.acks = acks;
         this.nacks = nacks;
         this.received = received;
@@ -44,6 +51,12 @@ class Receive<T extends MessagePayload> implements Runnable {
                 Message<?> msg = Packet.decode(pkt, Message.class);
                 receive(msg);
                 log.info("Received " + msg);
+            } catch (SocketTimeoutException e) {
+                if (Thread.interrupted()) {
+                    log.info("Interrupted. Shutting down.");
+                    inSock.close();
+                    return;
+                }
             } catch (IOException | ClassNotFoundException | ClassCastException e) {
                 log.warning(e.getMessage());
             }
-- 
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