1 /*
2  * Copyright (C) 2010 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.nfc.dhimpl;
18 
19 import com.android.nfc.DeviceHost;
20 import com.android.nfc.LlcpPacket;
21 
22 import java.io.IOException;
23 
24 /**
25  * LlcpConnectionlessSocket represents a LLCP Connectionless object to be used
26  * in a connectionless communication
27  */
28 public class NativeLlcpConnectionlessSocket implements DeviceHost.LlcpConnectionlessSocket {
29 
30     private int mHandle;
31     private int mSap;
32     private int mLinkMiu;
33 
NativeLlcpConnectionlessSocket()34     public NativeLlcpConnectionlessSocket() { }
35 
doSendTo(int sap, byte[] data)36     public native boolean doSendTo(int sap, byte[] data);
37 
doReceiveFrom(int linkMiu)38     public native LlcpPacket doReceiveFrom(int linkMiu);
39 
doClose()40     public native boolean doClose();
41 
42     @Override
getLinkMiu()43     public int getLinkMiu(){
44         return mLinkMiu;
45     }
46 
47     @Override
getSap()48     public int getSap(){
49         return mSap;
50     }
51 
52     @Override
send(int sap, byte[] data)53     public void send(int sap, byte[] data) throws IOException {
54         if (!doSendTo(sap, data)) {
55             throw new IOException();
56         }
57     }
58 
59     @Override
receive()60     public LlcpPacket receive() throws IOException {
61         LlcpPacket packet = doReceiveFrom(mLinkMiu);
62         if (packet == null) {
63             throw new IOException();
64         }
65         return packet;
66     }
67 
getHandle()68     public int getHandle(){
69         return mHandle;
70     }
71 
72     @Override
close()73     public void close() throws IOException {
74         if (!doClose()) {
75             throw new IOException();
76         }
77     }
78 }
79