| /* |
| * Copyright (C) 2009 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.dumprendertree.forwarder; |
| |
| import android.util.Log; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.net.Socket; |
| |
| /** |
| * |
| * Worker class for {@link ForwardServer}. A Forwarder will be created once the ForwardServer |
| * accepts an incoming connection, and it will then forward the incoming/outgoing streams to a |
| * connection already proxied by adb networking (see also {@link AdbUtils}). |
| * |
| */ |
| public class Forwarder { |
| |
| private ForwardServer server; |
| private Socket from, to; |
| |
| private static final String LOGTAG = "Forwarder"; |
| |
| public Forwarder (Socket from, Socket to, ForwardServer server) { |
| this.server = server; |
| this.from = from; |
| this.to = to; |
| server.register(this); |
| } |
| |
| public void start() { |
| Thread outgoing = new Thread(new SocketPipe(from, to)); |
| Thread incoming = new Thread(new SocketPipe(to, from)); |
| outgoing.setName(LOGTAG); |
| incoming.setName(LOGTAG); |
| outgoing.start(); |
| incoming.start(); |
| } |
| |
| public void stop() { |
| shutdown(from); |
| shutdown(to); |
| } |
| |
| private void shutdown(Socket socket) { |
| try { |
| socket.shutdownInput(); |
| } catch (IOException e) { |
| Log.v(LOGTAG, "Socket#shutdownInput", e); |
| } |
| try { |
| socket.shutdownOutput(); |
| } catch (IOException e) { |
| Log.v(LOGTAG, "Socket#shutdownOutput", e); |
| } |
| try { |
| socket.close(); |
| } catch (IOException e) { |
| Log.v(LOGTAG, "Socket#close", e); |
| } |
| } |
| |
| private class SocketPipe implements Runnable { |
| |
| private Socket in, out; |
| |
| public SocketPipe(Socket in, Socket out) { |
| this.in = in; |
| this.out = out; |
| } |
| |
| public void run() { |
| try { |
| int length; |
| InputStream is = in.getInputStream(); |
| OutputStream os = out.getOutputStream(); |
| byte[] buffer = new byte[4096]; |
| while ((length = is.read(buffer)) > 0) { |
| os.write(buffer, 0, length); |
| } |
| } catch (IOException ioe) { |
| } finally { |
| server.unregister(Forwarder.this); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return "SocketPipe{" + in + "=>" + out + "}"; |
| } |
| } |
| } |