1 function QVERIFY(x, debugInfo) {

     2     if (!(x)) {

     3         print(debugInfo);

     4         throw(debugInfo);

     5     }

     6 }

     7 

     8 var producer = new ScriptSharedMemory;

     9 producer.setKey("market");

    10 

    11 var size = 1024;

    12 if (!producer.create(size)) {

    13     QVERIFY(producer.error() == 4, "create");

    14     QVERIFY(producer.attach());

    15 }

    16 //print ("producer created and attached");

    17 

    18 QVERIFY(producer.lock());

    19 producer.set(0, 'Q');

    20 QVERIFY(producer.unlock());

    21 

    22 var i = 0;

    23 while(i < 5) {

    24     QVERIFY(producer.lock(), "lock");

    25     if (producer.get(0) == 'Q') {

    26         QVERIFY(producer.unlock(), "unlock");

    27         producer.sleep(1);

    28         continue;

    29     }

    30     //print("producer: " + i);

    31     ++i;

    32     producer.set(0, 'Q');

    33     QVERIFY(producer.unlock(), "unlock");

    34     producer.sleep(1);

    35 }

    36 QVERIFY(producer.lock());

    37 producer.set(0, 'E');

    38 QVERIFY(producer.unlock());

    39 

    40 //print ("producer done");

    41 

    42 // Sleep for a bit to let all consumers start, otherwise they will get stuck in the attach loop,

    43 // because at least in Symbian the shared memory will be destroyed if there are no active handles to it.

    44 producer.sleep(3000);