/*
* Copyright (c) Martin Schoeberl, martin@jopdesign.com
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Martin Schoeberl
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
package examples;
import joprt.RtThread;
import util.Dbg;
import util.Timer;
import ejip_old.*;
class MyServer extends UdpHandler {
StringBuffer sb;
// sorry, but the class initializer cannot
// create objects (at the moment)
public MyServer() {
sb = new StringBuffer(100);
}
public void request(Packet p) {
String answer = " Answer";
System.out.print("reveived: ");
// nasty manipulation of the int[] buffer
// when dealing with byte characters :-(
Ip.getData(p, Udp.DATA, sb);
Dbg.wr(sb);
System.out.println();
sb.append(answer);
Ip.setData(p, Udp.DATA, sb);
// and return it to port 1234
Udp.build(p, p.buf[3], 1234);
};
}
/**
* Simple UDP Server.
*/
public class UdpJOPServer {
static Net net;
static LinkLayer ipLink;
/**
* Start network and enter forever loop.
*/
public static void main(String[] args) {
// use serial line for debugging
Dbg.initSerWait();
//
// create our simple UDP server
//
MyServer server = new MyServer();
Udp.addHandler(1234, server);
//
// start TCP/IP
//
net = Net.init();
int[] eth = {0x00, 0xe0, 0x98, 0x33, 0xb0, 0xf8};
int ip = (192<<24) + (168<<16) + (0<<8) + 123;
ipLink = CS8900.init(eth, ip);
//
// start device driver threads
//
new RtThread(5, 10000) {
public void run() {
for (;;) {
waitForNextPeriod();
net.loop();
}
}
};
new RtThread(5, 10000) {
public void run() {
for (;;) {
waitForNextPeriod();
ipLink.loop();
}
}
};
//
// WD thread has lowest priority to see if every timing will be met
//
RtThread.startMission();
forever();
}
private static void forever() {
//
// just do the WD blink with lowest priority
// => if the other threads take to long (*3) there will be a reset
//
for (;;) {
for (int i=0; i<10; ++i) {
RtThread.sleepMs(50);
Timer.wd();
Timer.loop();
}
Timer.wd();
}
}
}