1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
|
/*
* Copyright © 2011 Keith Packard <keithp@keithp.com>
* Copyright © 2012 Mike Beattie <mike@ethernal.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
package org.altusmetrum.AltosDroid;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.reflect.Method;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import org.altusmetrum.AltosLib.*;
public class AltosBluetooth extends AltosLink {
// Debugging
private static final String TAG = "AltosBluetooth";
private static final boolean D = true;
/**
* This thread runs while attempting to make an outgoing connection
* with a device. It runs straight through; the connection either
* succeeds or fails.
*/
private BluetoothAdapter adapter;
private ConnectThread connect_thread;
private BluetoothSocket socket;
private InputStream input;
private OutputStream output;
private class ConnectThread extends Thread {
private final BluetoothDevice mmDevice;
private String mSocketType;
BluetoothSocket tmp_socket;
public ConnectThread(BluetoothDevice device, boolean secure) {
mmDevice = device;
mSocketType = secure ? "Secure" : "Insecure";
// Get a BluetoothSocket for a connection with the
// given BluetoothDevice
try {
if (secure) {
Method m = device.getClass().getMethod("createRfcommSocket", new Class[] {int.class});
tmp_socket = (BluetoothSocket) m.invoke(device, 2);
// tmp = device.createRfcommSocket(2);
} else {
Method m = device.getClass().getMethod("createInsecureRfcommSocket", new Class[] {int.class});
tmp_socket = (BluetoothSocket) m.invoke(device, 2);
// tmp = device.createInsecureRfcommSocket(2);
}
} catch (Exception e) {
Log.e(TAG, "Socket Type: " + mSocketType + "create() failed", e);
e.printStackTrace();
}
}
public void run() {
Log.i(TAG, "BEGIN connect_thread SocketType:" + mSocketType);
setName("ConnectThread" + mSocketType);
// Always cancel discovery because it will slow down a connection
adapter.cancelDiscovery();
// Make a connection to the BluetoothSocket
try {
// This is a blocking call and will only return on a
// successful connection or an exception
tmp_socket.connect();
} catch (IOException e) {
// Close the socket
try {
tmp_socket.close();
} catch (IOException e2) {
Log.e(TAG, "unable to close() " + mSocketType +
" socket during connection failure", e2);
}
connection_failed();
return;
}
try {
synchronized (AltosBluetooth.this) {
input = tmp_socket.getInputStream();
output = tmp_socket.getOutputStream();
socket = tmp_socket;
// Reset the ConnectThread because we're done
AltosBluetooth.this.notify();
connect_thread = null;
}
} catch (Exception e) {
Log.e(TAG, "Failed to finish connection", e);
e.printStackTrace();
}
}
public void cancel() {
try {
if (tmp_socket != null)
tmp_socket.close();
} catch (IOException e) {
Log.e(TAG, "close() of connect " + mSocketType + " socket failed", e);
}
}
}
private synchronized void wait_connected() throws InterruptedException {
if (input == null) {
wait();
}
}
private void connection_failed() {
}
public void print(String data) {
byte[] bytes = data.getBytes();
try {
wait_connected();
output.write(bytes);
} catch (IOException e) {
connection_failed();
} catch (InterruptedException e) {
connection_failed();
}
}
public int getchar() {
try {
wait_connected();
return input.read();
} catch (IOException e) {
connection_failed();
} catch (java.lang.InterruptedException e) {
connection_failed();
}
return AltosLink.ERROR;
}
public void close() {
synchronized(this) {
if (connect_thread != null) {
connect_thread.cancel();
connect_thread = null;
}
}
}
public void flush_output() {
super.flush_output();
/* any local work needed to flush bluetooth? */
}
public boolean can_cancel_reply() {
return false;
}
public boolean show_reply_timeout() {
return true;
}
public void hide_reply_timeout() {
}
public AltosBluetooth(BluetoothDevice device) {
adapter = BluetoothAdapter.getDefaultAdapter();
connect_thread = new ConnectThread(device, true);
connect_thread.start();
}
}
|
