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| <PRE>
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| import java.net.*;
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| import java.io.*;
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|
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| public class ServerDaemon implements Runnable {
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|
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| private Thread daem;
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| private Server owner;
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| private int port;
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| private ServerSocket sock;
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|
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| // constructor
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| public ServerDaemon(Server s, int p) throws Exception {
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| owner = s;
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| port = p;
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| sock = new ServerSocket(port);
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|
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| daem = new Thread(this);
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| daem.start();
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| }
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|
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| // run is called from JVM upon a call to start
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| public void run() {
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| long upTime = 1000 // milliseconds
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| * 60 // * seconds
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| * 5L; // * minutes = time in minutes
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| int stopLoop = 0; // used to avoid severe errors
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|
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| while (stopLoop < 100) {
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| // used to see if severe error occurs
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| long startTime = System.currentTimeMillis();
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|
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| try {
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| if (sock == null) { // if error had occurred
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| sock = new ServerSocket(port);
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| }
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|
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| while (true) { // listen for connections
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| Socket newCon = sock.accept();
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|
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| // create a socket object for that conn.
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| MyServerSocket s = new MyServerSocket(newCon, owner);
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| s.start();
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|
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| // add the new connection to the vector
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| owner.addMySocket(s);
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| }
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|
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| } catch (Exception e) {
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| e.printStackTrace();
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| sock = null;
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|
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| if ((System.currentTimeMillis() - startTime)
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| < upTime) {
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|
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| ++stopLoop;
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| try {
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| /* take a nap with. The nap time
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| * will increase up to as worst 99
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| * min's. We hope that the network
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| * error will be gone by that time,
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| * summing up to almost 3.5 days.*/
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| Thread.sleep(60000L // one minute
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| * stopLoop);
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|
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| } catch (Exception exc) {}
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|
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| } else {
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| stopLoop = 0; // erase earlier errors
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| }
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| } // try/catch ends
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| } // while ends
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|
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| System.out.println("ERROR in ServerDaemon. Exiting");
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| System.exit(0);
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|
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| }
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| }
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| </PRE>
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| [[Category:Into Java]]
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