chore: Set reuseAddr by default for undertow.

Author: He-Pin

cask/src/cask/main/Main.scala

@@ -10,6 +10,7 @@ import io.undertow.Undertow
 import io.undertow.server.{HttpHandler, HttpServerExchange}
 import io.undertow.server.handlers.BlockingHandler
 import io.undertow.util.HttpString
+import org.xnio.Options
 
 import scala.concurrent.ExecutionContext
 
@@ -65,6 +66,9 @@ abstract class Main{
     if (!verbose) Main.silenceJboss()
     val server = Undertow.builder
       .addHttpListener(port, host)
+      .setSocketOption(Options.REUSE_ADDRESSES, true)
+      .setSocketOption(Options.TCP_NODELAY, true)
+      .setSocketOption(Options.USE_DIRECT_BUFFERS, true)
       .setHandler(defaultHandler)
       .build
     server.start()