Examples of com.sun.cldc.isolate.Isolate

com.sun.cldc.isolate.Isolate
e: cldc_vm -classpath HelloWorld HelloWorld2 public static void main(String [] argv) { System.out.println("HelloWorld"); for (int i = 0; i < 6; i++) { try { // pass i as an argument to the isolate just for fun String[] isoArgs = {Integer.toString(i)}; Isolate iso = new Isolate(argv[0], isoArgs); iso.start(); } catch (Exception e) { System.out.println("caught exception " + e); e.printStackTrace(); } System.out.println("HelloWorld: Iso " + i + " started."); } } } class HelloWorld2 { static String st = "HelloWorld2["; public static void main(String [] argv) { st = st.concat(argv[0]); st = st.concat("]"); System.out.println("st is " + st); System.exit(42); } } @see javax.isolate.IsolateStartupException

    /**
     * Tests send() followed by a receive().
     */
    void testSendReceive() throws IOException {
        String sendstr = "foo";
        Isolate i = Isolate.currentIsolate();
        Link link = Link.newLink(i, i);
        Sender sender = new Sender(link,
            LinkMessage.newStringMessage(sendstr));


        assertFalse("sender should be blocked", sender.done);

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    /**
     * Tests that close() will unblock a thread blocked in receive().
     */
    void testReceiveClose() throws IOException {
        Isolate i = Isolate.currentIsolate();
        Link link = Link.newLink(i, i);
        Receiver receiver = new Receiver(link);


        assertFalse("receiver should be blocked", receiver.done);
        assertNull("receiver should have no exceptions", receiver.exception);

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    /**
     * Tests that close() will unblock a thread blocked in send().
     */
    void testSendClose() throws IOException {
        Isolate i = Isolate.currentIsolate();
        Link link = Link.newLink(i, i);
        Sender sender = new Sender(link,
            LinkMessage.newStringMessage("foobar"));


        assertFalse("sender should be blocked", sender.done);

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    /**
     * Tests that the native rendezvous point structure is getting cleaned up 
     * properly by the finalizer.
     */
    void testCleanup() {
        Isolate i = Isolate.currentIsolate();
        Link link = Link.newLink(i, i);
        int rp = link.hashCode();


        assertEquals("refcount must be 1", 1, Utils.getRefCount(link));

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    /**
     * Tests link creation with isolates in different states.
     */
    void testIsolateStates() throws IOException, IsolateStartupException {
        boolean thrown;
        Isolate us = Isolate.currentIsolate();
        Isolate them = new Isolate("com.sun.midp.links.Empty", null);


        thrown = false;
        try {
            Link link = Link.newLink(us, them);
        } catch (IllegalStateException ise) {
            thrown = true;
        }
        assertTrue("started,new should throw ISE", thrown);


        thrown = false;
        try {
            Link link = Link.newLink(them, us);
        } catch (IllegalStateException ise) {
            thrown = true;
        }
        assertTrue("new,started should throw ISE", thrown);


        them.start();


        thrown = false;
        try {
            Link link = Link.newLink(us, them);
        } catch (IllegalStateException ise) {
            thrown = true;
        }
        assertFalse("started,started should not throw ISE", thrown);


        thrown = false;
        try {
            Link link = Link.newLink(them, us);
        } catch (IllegalStateException ise) {
            thrown = true;
        }
        assertFalse("started,started should not throw ISE", thrown);


        them.exit(0);
        them.waitForExit();


        thrown = false;
        try {
            Link link = Link.newLink(us, them);
        } catch (IllegalStateException ise) {

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    /**
     * Tests receiver and sender isolate access for a link.
     */
    void testAccess() throws IOException, IsolateStartupException {
        Isolate i1 = Isolate.currentIsolate();
        Isolate i2 = new Isolate("com.sun.midp.links.Empty", null);
        i2.start();
        Link link1 = Link.newLink(i1, i2);
        Link link2 = Link.newLink(i2, i1);
        boolean thrown;


        thrown = false;
        try {
            LinkMessage lm = link1.receive();
        } catch (IllegalArgumentException iae) {
            thrown = true;
        }
        assertTrue("receive should catch IAE", thrown);


        thrown = false;
        try {
            link2.send(LinkMessage.newStringMessage("hello"));
        } catch (IllegalArgumentException iae) {
            thrown = true;
        }
        assertTrue("send should catch IAE", thrown);


        i2.exit(0);
    }

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     * ensures that each time exactly one thread is unblocked and has received
     * the message just sent. Finally, after sending enough messages, ensures
     * that all threads have been accounted for.
     */
    void testReceivers() throws IOException {
        Isolate is = Isolate.currentIsolate();
        Link link = Link.newLink(is, is);
        Receiver ra[] = new LoggingReceiver[NUM_THREADS];


        doneset = new Hashtable(NUM_THREADS);
        messages = new Hashtable(NUM_THREADS);

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     * ensures that each time exactly one thread is unblocked and had sent the
     * message just received. Finally, after receiving enough messages,
     * ensures that all threads have been accounted for.
     */
    void testSenders() throws IOException {
        Isolate is = Isolate.currentIsolate();
        Link link = Link.newLink(is, is);
        LoggingSender sa[] = new LoggingSender[NUM_THREADS];


        for (int i = 0; i < NUM_THREADS; i++) {
            String s = Integer.toString(rand.nextInt());

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    /**
     * Tests passing null for arguments.
     */
    void testNulls() {
        boolean thrown;
        Isolate is = Isolate.currentIsolate();
        Link[] la = new Link[3];
        la[0] = Link.newLink(is, is);
        la[1] = Link.newLink(is, is);
        la[2] = Link.newLink(is, is);

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    /**
     * Tests zero-length setting and getting operations.
     */
    void testZero() {
        Link[] la;
        Isolate is = Isolate.currentIsolate();


        LinkPortal.setLinks(is, new Link[0]);
        la = LinkPortal.getLinks();
        assertNotNull("shouldn't be null", la);
        assertEquals("length zero", 0, la.length);

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Related Classes of com.sun.cldc.isolate.Isolate

com.sun.midp.links.TestEcho

com.sun.midp.links.TestKill

com.sun.midp.links.TestLink

com.sun.midp.links.TestLinkMessage

com.sun.midp.links.TestLinkPortal

com.sun.midp.links.TestLinkTransfer

com.sun.midp.links.TestMultiple

com.sun.midp.links.TestNamedLinkPortal

com.sun.midp.links.TestRing

com.sun.midp.links.TestTransfer

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