function QVERIFY(x, debugInfo) {

    if (!(x)) {

        print(debugInfo);

        throw(debugInfo);

    }

}

var producer = new ScriptSharedMemory;

producer.setKey("market");

var size = 1024;

if (!producer.create(size)) {

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

    QVERIFY(producer.attach());

}

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

QVERIFY(producer.lock());

producer.set(0, 'Q');

QVERIFY(producer.unlock());

var i = 0;

while(i < 5) {

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

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

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

        producer.sleep(1);

        continue;

    }

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

    ++i;

    producer.set(0, 'Q');

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

    producer.sleep(1);

}

QVERIFY(producer.lock());

producer.set(0, 'E');

QVERIFY(producer.unlock());

//print ("producer done");

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

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

producer.sleep(3000);