Examples with Lock com.arjuna.ats.txoj.Lock used on opensource projects

Example 46 with Lock

use of com.arjuna.ats.txoj.Lock in project narayana by jbosstm.

the class ExplicitStackImple method pop.

public int pop(IntHolder val, Control action) throws SystemException {
    AtomicTransaction A = new AtomicTransaction();
    int res = 0;
    ExplicitInterposition inter = new ExplicitInterposition();
    try {
        inter.registerTransaction(action);
    } catch (Exception e) {
        System.err.println("WARNING ExplicitStackImple::push - could not create interposition.");
        return -1;
    }
    String name = OTSImpleManager.current().get_transaction_name();
    System.out.println("Created pop interposed transaction: " + name);
    name = null;
    try {
        A.begin();
        if (setlock(new Lock(LockMode.WRITE), 0) == LockResult.GRANTED) {
            if (top > 0) {
                top--;
                val.value = array[top];
            } else
                res = -1;
            if (res == 0) {
                A.commit(false);
            } else
                A.rollback();
        } else {
            A.rollback();
        }
    } catch (Exception e1) {
        try {
            A.rollback();
        } catch (Exception e2) {
            System.err.println(e2);
        }
        res = -1;
    }
    inter.unregisterTransaction();
    return res;
}

Example 47 with Lock

use of com.arjuna.ats.txoj.Lock in project narayana by jbosstm.

the class StackImple method printStack.

public void printStack() throws SystemException {
    AtomicTransaction A = new AtomicTransaction();
    try {
        A.begin();
        if (setlock(new Lock(LockMode.WRITE), 0) == LockResult.GRANTED) {
            if (top > 0) {
                System.out.println("\nContents of stack:");
                for (int i = 0; i < top; i++) System.out.println("\t" + array[i]);
            } else
                System.out.println("\nStack is empty.");
            A.commit(false);
        } else {
            System.out.println("printStack: could not set WRITE lock.");
            A.rollback();
        }
    } catch (Exception e1) {
        try {
            A.rollback();
        } catch (Exception e2) {
            System.err.println(e2);
        }
    }
}

Example 48 with Lock

use of com.arjuna.ats.txoj.Lock in project narayana by jbosstm.

the class AtomicObject method set.

public synchronized boolean set(int value) {
    boolean res = false;
    CurrentImple current = OTSImpleManager.current();
    try {
        current.begin();
        if (setlock(new Lock(LockMode.WRITE), 5) == LockResult.GRANTED) {
            _value = value;
            current.commit(false);
            res = true;
        } else
            current.rollback();
    } catch (Exception e) {
        logger.info(e);
        logger.warn(e.getMessage(), e);
        res = false;
    }
    return res;
}

Example 49 with Lock

use of com.arjuna.ats.txoj.Lock in project narayana by jbosstm.

the class HammerObject method set.

public boolean set(int value, Control control) throws SystemException {
    boolean res = false;
    ExplicitInterposition inter = new ExplicitInterposition();
    try {
        inter.registerTransaction(control);
    } catch (Exception e) {
        System.err.println("WARNING HammerObject.set - could not do interposition");
        return false;
    }
    CurrentImple current = OTSImpleManager.current();
    try {
        current.begin();
        if (setlock(new Lock(LockMode.WRITE), 0) == LockResult.GRANTED) {
            _value = value;
            current.commit(true);
            res = true;
        } else
            current.rollback();
    } catch (Exception e) {
        System.err.println("HammerObject.set: " + e);
        res = false;
    }
    inter.unregisterTransaction();
    return res;
}

Example 50 with Lock

use of com.arjuna.ats.txoj.Lock in project narayana by jbosstm.

the class LockManagerProxyUnitTest method testTransactionalUpdate.

public void testTransactionalUpdate() {
    ExtendedLockable sample = new ExtendedLockable();
    LockManagerProxy<ExtendedLockable> proxy = new LockManagerProxy<ExtendedLockable>(sample);
    assertNotNull(proxy.type());
    AtomicAction A = new AtomicAction();
    A.begin();
    sample._isState = new Double(1.0);
    assertEquals(proxy.setlock(new Lock(LockMode.WRITE)), LockResult.GRANTED);
    sample._isState = new Double(4.0);
    A.abort();
    assertEquals(sample._isState, new Double(1.0));
}