added scala compile server

1 files changed, 54 insertions, 0 deletions

diff --git a/src/compiler/scala/tools/util/SocketServer.scala b/src/compiler/scala/tools/util/SocketServer.scala
new file mode 100755
index 0000000000..7a65290dcc
--- /dev/null
+++ b/src/compiler/scala/tools/util/SocketServer.scala
@@ -0,0 +1,54 @@
+package scala.tools.util
+
+import java.net._
+import java.io._
+
+abstract class SocketServer {
+
+  def shutDown: boolean
+  def session(): unit
+
+  var out: PrintWriter = _
+  var in: BufferedReader = _
+
+  val port: int = try {
+    val s = new ServerSocket(0)
+    val p = s.getLocalPort()
+    s.close()
+    p
+  } catch {
+    case e: IOException =>
+      System.err.println("Could not listen on any port; exiting.")
+      exit(1)
+  }
+
+  def run(): unit = {
+    while (!shutDown) {
+      val serverSocket = try {
+        new ServerSocket(port)
+      } catch {
+        case e: IOException =>
+          System.err.println("Could not listen on port: "+port+"; exiting.")
+          exit(1)
+      }
+      val clientSocket = try {
+        serverSocket.accept()
+      } catch {
+        case e: IOException =>
+          System.err.println("Accept on port "+port+" failed; exiting.")
+          exit(1)
+      }
+
+      out = new PrintWriter(clientSocket.getOutputStream(), true)
+      in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()))
+
+      session()
+
+      out.close()
+      in.close()
+      clientSocket.close()
+      serverSocket.close()
+    }
+  }
+}
+