BluetoothOppRfcommListener.java revision 2a6bf35f603d12e6533a69c773ac258b0e84941f
1/* 2 * Copyright (c) 2008-2009, Motorola, Inc. 3 * 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * - Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * - Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * - Neither the name of the Motorola, Inc. nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33package com.android.bluetooth.opp; 34 35import java.io.IOException; 36import java.net.ServerSocket; 37import java.net.Socket; 38 39import android.bluetooth.BluetoothAdapter; 40import android.bluetooth.BluetoothServerSocket; 41import android.bluetooth.BluetoothSocket; 42import android.os.Handler; 43import android.os.Message; 44import android.util.Log; 45 46/** 47 * This class listens on OPUSH channel for incoming connection 48 */ 49public class BluetoothOppRfcommListener { 50 private static final String TAG = "BtOppRfcommListener"; 51 52 private static final boolean V = Constants.VERBOSE; 53 54 public static final int MSG_INCOMING_BTOPP_CONNECTION = 100; 55 56 private volatile boolean mInterrupted; 57 58 private Thread mSocketAcceptThread; 59 60 private Handler mCallback; 61 62 private static final int CREATE_RETRY_TIME = 10; 63 64 private static final int DEFAULT_OPP_CHANNEL = 12; 65 66 private final int mBtOppRfcommChannel; 67 68 private final BluetoothAdapter mAdapter; 69 70 private BluetoothServerSocket mBtServerSocket = null; 71 72 private ServerSocket mTcpServerSocket = null; 73 74 public BluetoothOppRfcommListener(BluetoothAdapter adapter) { 75 this(adapter, DEFAULT_OPP_CHANNEL); 76 } 77 78 public BluetoothOppRfcommListener(BluetoothAdapter adapter, int channel) { 79 mBtOppRfcommChannel = channel; 80 mAdapter = adapter; 81 } 82 83 public synchronized boolean start(Handler callback) { 84 if (mSocketAcceptThread == null) { 85 mCallback = callback; 86 87 mSocketAcceptThread = new Thread(TAG) { 88 89 public void run() { 90 if (Constants.USE_TCP_DEBUG) { 91 try { 92 if (V) Log.v(TAG, "Create TCP ServerSocket"); 93 mTcpServerSocket = new ServerSocket(Constants.TCP_DEBUG_PORT, 1); 94 } catch (IOException e) { 95 Log.e(TAG, "Error listing on port" + Constants.TCP_DEBUG_PORT); 96 mInterrupted = true; 97 } 98 while (!mInterrupted) { 99 try { 100 Socket clientSocket = mTcpServerSocket.accept(); 101 102 if (V) Log.v(TAG, "Socket connected!"); 103 TestTcpTransport transport = new TestTcpTransport(clientSocket); 104 Message msg = Message.obtain(); 105 msg.setTarget(mCallback); 106 msg.what = MSG_INCOMING_BTOPP_CONNECTION; 107 msg.obj = transport; 108 msg.sendToTarget(); 109 110 } catch (IOException e) { 111 Log.e(TAG, "Error accept connection " + e); 112 } 113 } 114 if (V) Log.v(TAG, "TCP listen thread finished"); 115 } else { 116 boolean serverOK = true; 117 118 /* 119 * it's possible that create will fail in some cases. 120 * retry for 10 times 121 */ 122 for (int i = 0; i < CREATE_RETRY_TIME && !mInterrupted; i++) { 123 //TODO(BT) 124 /* 125 try { 126 mBtServerSocket = mAdapter 127 .listenUsingInsecureRfcommOn(mBtOppRfcommChannel); 128 } catch (IOException e1) { 129 Log.e(TAG, "Error create RfcommServerSocket " + e1); 130 serverOK = false; 131 }*/ 132 if (!serverOK) { 133 synchronized (this) { 134 try { 135 if (V) Log.v(TAG, "wait 3 seconds"); 136 Thread.sleep(3000); 137 } catch (InterruptedException e) { 138 Log.e(TAG, "socketAcceptThread thread was interrupted (3)"); 139 mInterrupted = true; 140 } 141 } 142 } else { 143 break; 144 } 145 } 146 if (!serverOK) { 147 Log.e(TAG, "Error start listening after " + CREATE_RETRY_TIME + " try"); 148 mInterrupted = true; 149 } 150 if (!mInterrupted) { 151 Log.i(TAG, "Accept thread started on channel " + mBtOppRfcommChannel); 152 } 153 BluetoothSocket clientSocket; 154 //TODO(BT) 155 /* 156 while (!mInterrupted) { 157 try { 158 clientSocket = mBtServerSocket.accept(); 159 Log.i(TAG, "Accepted connectoin from " 160 + clientSocket.getRemoteDevice()); 161 BluetoothOppRfcommTransport transport = new BluetoothOppRfcommTransport( 162 clientSocket); 163 Message msg = Message.obtain(); 164 msg.setTarget(mCallback); 165 msg.what = MSG_INCOMING_BTOPP_CONNECTION; 166 msg.obj = transport; 167 msg.sendToTarget(); 168 } catch (IOException e) { 169 Log.e(TAG, "Error accept connection " + e); 170 } 171 }*/ 172 Log.i(TAG, "BluetoothSocket listen thread finished"); 173 } 174 } 175 }; 176 mInterrupted = false; 177 if(!Constants.USE_TCP_SIMPLE_SERVER) { 178 mSocketAcceptThread.start(); 179 } 180 } 181 return true; 182 } 183 184 public synchronized void stop() { 185 if (mSocketAcceptThread != null) { 186 Log.i(TAG, "stopping Accept Thread"); 187 188 mInterrupted = true; 189 if (Constants.USE_TCP_DEBUG) { 190 if (V) Log.v(TAG, "close mTcpServerSocket"); 191 if (mTcpServerSocket != null) { 192 try { 193 mTcpServerSocket.close(); 194 } catch (IOException e) { 195 Log.e(TAG, "Error close mTcpServerSocket"); 196 } 197 } 198 } else { 199 if (V) Log.v(TAG, "close mBtServerSocket"); 200 201 if (mBtServerSocket != null) { 202 try { 203 mBtServerSocket.close(); 204 } catch (IOException e) { 205 Log.e(TAG, "Error close mBtServerSocket"); 206 } 207 } 208 } 209 try { 210 mSocketAcceptThread.interrupt(); 211 if (V) Log.v(TAG, "waiting for thread to terminate"); 212 mSocketAcceptThread.join(); 213 mSocketAcceptThread = null; 214 mCallback = null; 215 } catch (InterruptedException e) { 216 if (V) Log.v(TAG, "Interrupted waiting for Accept Thread to join"); 217 } 218 } 219 } 220} 221