BluetoothOppRfcommListener.java revision 9f0d856f41d443ec23d5aa2eecfc561d7a3c01d1
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.bluetooth.BluetoothUuid; 43import android.os.Handler; 44import android.os.Message; 45import android.util.Log; 46 47/** 48 * This class listens on OPUSH channel for incoming connection 49 */ 50public class BluetoothOppRfcommListener { 51 private static final String TAG = "BtOppRfcommListener"; 52 53 private static final boolean V = Constants.VERBOSE; 54 55 public static final int MSG_INCOMING_BTOPP_CONNECTION = 100; 56 57 private volatile boolean mInterrupted; 58 59 private Thread mSocketAcceptThread; 60 61 private Handler mCallback; 62 63 private static final int CREATE_RETRY_TIME = 10; 64 65 private final BluetoothAdapter mAdapter; 66 67 private BluetoothServerSocket mBtServerSocket = null; 68 69 private ServerSocket mTcpServerSocket = null; 70 71 public BluetoothOppRfcommListener(BluetoothAdapter adapter) { 72 mAdapter = adapter; 73 } 74 75 76 public synchronized boolean start(Handler callback) { 77 if (mSocketAcceptThread == null) { 78 mCallback = callback; 79 80 mSocketAcceptThread = new Thread(TAG) { 81 82 public void run() { 83 if (Constants.USE_TCP_DEBUG) { 84 try { 85 if (V) Log.v(TAG, "Create TCP ServerSocket"); 86 mTcpServerSocket = new ServerSocket(Constants.TCP_DEBUG_PORT, 1); 87 } catch (IOException e) { 88 Log.e(TAG, "Error listing on port" + Constants.TCP_DEBUG_PORT); 89 mInterrupted = true; 90 } 91 while (!mInterrupted) { 92 try { 93 Socket clientSocket = mTcpServerSocket.accept(); 94 95 if (V) Log.v(TAG, "Socket connected!"); 96 TestTcpTransport transport = new TestTcpTransport(clientSocket); 97 Message msg = Message.obtain(); 98 msg.setTarget(mCallback); 99 msg.what = MSG_INCOMING_BTOPP_CONNECTION; 100 msg.obj = transport; 101 msg.sendToTarget(); 102 103 } catch (IOException e) { 104 Log.e(TAG, "Error accept connection " + e); 105 } 106 } 107 if (V) Log.v(TAG, "TCP listen thread finished"); 108 } else { 109 boolean serverOK = true; 110 111 /* 112 * it's possible that create will fail in some cases. 113 * retry for 10 times 114 */ 115 for (int i = 0; i < CREATE_RETRY_TIME && !mInterrupted; i++) { 116 try { 117 if (V) Log.v(TAG, "Starting RFCOMM listener...."); 118 mBtServerSocket = mAdapter.listenUsingInsecureRfcommWithServiceRecord("OBEX Object Push", BluetoothUuid.ObexObjectPush.getUuid()); 119 if (V) Log.v(TAG, "Started RFCOMM listener...."); 120 } catch (IOException e1) { 121 Log.e(TAG, "Error create RfcommServerSocket " + e1); 122 serverOK = false; 123 } 124 if (!serverOK) { 125 synchronized (this) { 126 try { 127 if (V) Log.v(TAG, "Wait 3 seconds"); 128 Thread.sleep(3000); 129 } catch (InterruptedException e) { 130 Log.e(TAG, "socketAcceptThread thread was interrupted (3)"); 131 mInterrupted = true; 132 } 133 } 134 } else { 135 break; 136 } 137 } 138 if (!serverOK) { 139 Log.e(TAG, "Error start listening after " + CREATE_RETRY_TIME + " try"); 140 mInterrupted = true; 141 } 142 if (!mInterrupted) { 143 Log.i(TAG, "Accept thread started."); 144 } 145 BluetoothSocket clientSocket; 146 while (!mInterrupted) { 147 try { 148 if (V) Log.v(TAG, "Accepting connection..."); 149 clientSocket = mBtServerSocket.accept(); 150 if (V) Log.v(TAG, "Accepted connection from " 151 + clientSocket.getRemoteDevice()); 152 BluetoothOppRfcommTransport transport = new BluetoothOppRfcommTransport( 153 clientSocket); 154 Message msg = Message.obtain(); 155 msg.setTarget(mCallback); 156 msg.what = MSG_INCOMING_BTOPP_CONNECTION; 157 msg.obj = transport; 158 msg.sendToTarget(); 159 } catch (IOException e) { 160 Log.e(TAG, "Error accept connection " + e); 161 } 162 } 163 Log.i(TAG, "BluetoothSocket listen thread finished"); 164 } 165 } 166 }; 167 mInterrupted = false; 168 if(!Constants.USE_TCP_SIMPLE_SERVER) { 169 mSocketAcceptThread.start(); 170 } 171 } 172 return true; 173 } 174 175 public synchronized void stop() { 176 if (mSocketAcceptThread != null) { 177 Log.i(TAG, "stopping Accept Thread"); 178 179 mInterrupted = true; 180 if (Constants.USE_TCP_DEBUG) { 181 if (V) Log.v(TAG, "close mTcpServerSocket"); 182 if (mTcpServerSocket != null) { 183 try { 184 mTcpServerSocket.close(); 185 } catch (IOException e) { 186 Log.e(TAG, "Error close mTcpServerSocket"); 187 } 188 } 189 } else { 190 if (V) Log.v(TAG, "close mBtServerSocket"); 191 192 if (mBtServerSocket != null) { 193 try { 194 mBtServerSocket.close(); 195 } catch (IOException e) { 196 Log.e(TAG, "Error close mBtServerSocket"); 197 } 198 } 199 } 200 try { 201 mSocketAcceptThread.interrupt(); 202 if (V) Log.v(TAG, "waiting for thread to terminate"); 203 mSocketAcceptThread.join(); 204 mSocketAcceptThread = null; 205 mCallback = null; 206 } catch (InterruptedException e) { 207 if (V) Log.v(TAG, "Interrupted waiting for Accept Thread to join"); 208 } 209 } 210 } 211} 212