| 1 |
2 |
ZTEX |
/*%
|
| 2 |
|
|
Java host software API of ZTEX SDK
|
| 3 |
|
|
Copyright (C) 2009-2017 ZTEX GmbH.
|
| 4 |
|
|
http://www.ztex.de
|
| 5 |
|
|
|
| 6 |
|
|
This Source Code Form is subject to the terms of the Mozilla Public
|
| 7 |
|
|
License, v. 2.0. If a copy of the MPL was not distributed with this file,
|
| 8 |
|
|
You can obtain one at http://mozilla.org/MPL/2.0/.
|
| 9 |
|
|
|
| 10 |
|
|
Alternatively, the contents of this file may be used under the terms
|
| 11 |
|
|
of the GNU General Public License Version 3, as described below:
|
| 12 |
|
|
|
| 13 |
|
|
This program is free software; you can redistribute it and/or modify
|
| 14 |
|
|
it under the terms of the GNU General Public License version 3 as
|
| 15 |
|
|
published by the Free Software Foundation.
|
| 16 |
|
|
|
| 17 |
|
|
This program is distributed in the hope that it will be useful, but
|
| 18 |
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 19 |
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
| 20 |
|
|
General Public License for more details.
|
| 21 |
|
|
|
| 22 |
|
|
You should have received a copy of the GNU General Public License
|
| 23 |
|
|
along with this program; if not, see http://www.gnu.org/licenses/.
|
| 24 |
|
|
%*/
|
| 25 |
|
|
|
| 26 |
|
|
/*
|
| 27 |
|
|
Event handler for asynchronous mode.
|
| 28 |
|
|
*/
|
| 29 |
|
|
package ztex;
|
| 30 |
|
|
|
| 31 |
|
|
import java.io.*;
|
| 32 |
|
|
import java.util.*;
|
| 33 |
|
|
|
| 34 |
|
|
import org.usb4java.*;
|
| 35 |
|
|
|
| 36 |
|
|
/**
|
| 37 |
|
|
* This class defines an event handler thread which can be used in asynchronous mode.
|
| 38 |
|
|
*/
|
| 39 |
|
|
|
| 40 |
|
|
// *****************************************************************************
|
| 41 |
|
|
// ******* ZtexEventHandler ****************************************************
|
| 42 |
|
|
// *****************************************************************************
|
| 43 |
|
|
public class ZtexEventHandler extends Thread {
|
| 44 |
|
|
private volatile boolean terminate;
|
| 45 |
|
|
private volatile boolean isAlive;
|
| 46 |
|
|
private Context context;
|
| 47 |
|
|
|
| 48 |
|
|
/**
|
| 49 |
|
|
* Creates the event handler for a given USB context.
|
| 50 |
|
|
* @param p_context The USB context
|
| 51 |
|
|
*/
|
| 52 |
|
|
public ZtexEventHandler ( Context p_context ) {
|
| 53 |
|
|
super ();
|
| 54 |
|
|
context = p_context;
|
| 55 |
|
|
isAlive = false;
|
| 56 |
|
|
}
|
| 57 |
|
|
|
| 58 |
|
|
/**
|
| 59 |
|
|
* Creates the event handler for a given ZTEX device.
|
| 60 |
|
|
* @param ztex The ZTEX device
|
| 61 |
|
|
*/
|
| 62 |
|
|
public ZtexEventHandler ( Ztex1 ztex ) {
|
| 63 |
|
|
super ();
|
| 64 |
|
|
context = ztex.dev().context().context();
|
| 65 |
|
|
isAlive = false;
|
| 66 |
|
|
}
|
| 67 |
|
|
|
| 68 |
|
|
/**
|
| 69 |
|
|
* Stops the event handler. This call waits up to 1.5s
|
| 70 |
|
|
* @return true if the event handler terminated correctly.
|
| 71 |
|
|
*/
|
| 72 |
|
|
public boolean terminate() {
|
| 73 |
|
|
terminate = true;
|
| 74 |
|
|
for (int i=0; isAlive && i<=1500; i+=20 ) {
|
| 75 |
|
|
try { sleep(20); } catch ( InterruptedException e) { }
|
| 76 |
|
|
}
|
| 77 |
|
|
return !isAlive;
|
| 78 |
|
|
}
|
| 79 |
|
|
|
| 80 |
|
|
/**
|
| 81 |
|
|
* The thread body.
|
| 82 |
|
|
*/
|
| 83 |
|
|
public void run() {
|
| 84 |
|
|
isAlive = true;
|
| 85 |
|
|
terminate = false;
|
| 86 |
|
|
while ( ! terminate ) {
|
| 87 |
|
|
int result = LibUsb.handleEventsTimeoutCompleted (context, 500, null);
|
| 88 |
|
|
if ( (result!=LibUsb.SUCCESS) ) System.err.println("Event handler: "+LibUsb.strError(result));
|
| 89 |
|
|
}
|
| 90 |
|
|
isAlive = false;
|
| 91 |
|
|
}
|
| 92 |
|
|
}
|
