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TestLocking.javaAPI DocJCIFS 1.3.17 API3604Tue Oct 18 15:26:24 BST 2011jcifs.smb

TestLocking

public class TestLocking extends Object implements Runnable

Fields Summary
int
numThreads
int
numIter
long
delay
String
url
int
numComplete
long
ltime
Constructors Summary
Methods Summary
public static voidmain(java.lang.String[] args)

        if (args.length < 1) {
            System.err.println("usage: TestLocking [-t <numThreads>] [-i <numIter>] [-d <delay>] url");
            System.exit(1);
        }

        TestLocking t = new TestLocking();
        t.ltime = System.currentTimeMillis();

        for (int ai = 0; ai < args.length; ai++) {
            if (args[ai].equals("-t")) {
                ai++;
                t.numThreads = Integer.parseInt(args[ai]);
            } else if (args[ai].equals("-i")) {
                ai++;
                t.numIter = Integer.parseInt(args[ai]);
            } else if (args[ai].equals("-d")) {
                ai++;
                t.delay = Long.parseLong(args[ai]);
            } else {
                t.url = args[ai];
            }
        }

        Thread[] threads = new Thread[t.numThreads];
        int ti;

        for (ti = 0; ti < t.numThreads; ti++) {
            threads[ti] = new Thread(t);
            System.out.print(threads[ti].getName());
            threads[ti].start();
        }

        while (t.numComplete < t.numThreads) {
            long delay;

            do {
                delay = 2L;

                synchronized (t) {
                    long expire = t.ltime + t.delay;
                    long ctime = System.currentTimeMillis();

                    if (expire > ctime)
                        delay = expire - ctime;
                }

if (delay > 2)
System.out.println("delay=" + delay);
                Thread.sleep(delay);
            } while (delay > 2);

            synchronized (t) {
                t.notifyAll();
            }
//System.out.println("numComplete=" + t.numComplete + ",numThreads=" + t.numThreads);
        }

        for (ti = 0; ti < t.numThreads; ti++) {
            threads[ti].join();
            System.out.print(threads[ti].getName());
        }

        System.out.println();
public voidrun()


      
    
        try {
            SmbFile f = new SmbFile(url);
            SmbFile d = new SmbFile(f.getParent());
            byte[] buf = new byte[1024];

            for (int ii = 0; ii < numIter; ii++) {

                synchronized (this) {
                    ltime = System.currentTimeMillis();
                    wait();
                }

                try {
                    double r = Math.random();
                    if (r < 0.333) {
                        f.exists();
//                      System.out.print('e');
                    } else if (r < 0.667) {
                        d.listFiles();
//                      System.out.print('l');
                    } else if (r < 1.0) {
                        InputStream in = f.getInputStream();
                        while (in.read(buf) > 0) {
//                          System.out.print('r');
                        }
                        in.close();
                    }
                } catch (IOException ioe) {
                    System.err.println(ioe.getMessage());
//ioe.printStackTrace(System.err);
                }

            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            numComplete++;
        }