il: connect()

1 files changed, 37 insertions, 0 deletions

diff --git a/src/main/java/derms/net/il/IL.java b/src/main/java/derms/net/il/IL.java
new file mode 100644
index 0000000..56c8b40
--- /dev/null
+++ b/src/main/java/derms/net/il/IL.java
@@ -0,0 +1,37 @@
+package derms.net.il;
+
+import java.io.IOException;
+import java.net.DatagramSocket;
+import java.net.InetAddress;
+
+public class IL {
+    public static Connection listen(InetAddress laddr, int lport) {
+        // TODO
+    }
+
+    public static Connection connect(InetAddress raddr, int rport) throws IOException {
+        DatagramSocket sock = new DatagramSocket();
+        sock.connect(raddr, rport);
+        InetAddress laddr = sock.getLocalAddress();
+        int lport = sock.getLocalPort();
+        Connection conn = new Connection(laddr, lport, raddr, rport, sock);
+
+        conn.sendCtl(Type.sync, conn.id0, 0);
+        conn.state.set(State.syncer);
+        conn.start();
+        while (conn.state.get() == State.syncer)
+            Thread.yield();
+
+        State state = conn.state.get();
+        switch (state) {
+            case established:
+                return conn;
+            case closed:
+                conn.close();
+                throw new IOException("failed to connect to " + raddr + ":" + rport);
+            default:
+                conn.close();
+                throw new IllegalStateException("illegal connection state: " + state);
+        }
+    }
+}