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

Example 41 with Lock

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

the class LockList method pop.

/*
     * Pop the first element off the list and return it.
     */
public final Lock pop() {
    Lock current;
    if (count == 0)
        return null;
    current = (Lock) head;
    count--;
    head = LockFriend.getLink(head);
    LockFriend.setLink(current, null);
    return current;
}

Example 42 with Lock

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

the class LockList method forgetNext.

/*
     * Discard the element following the one pointed at. If it is the first
     * element (current = 0) then simply change the head pointer. Beware if
     * current points at the last element or the list is empty! This probably
     * indicates a bug in the caller.
     */
public final void forgetNext(Lock current) {
    if (count > 0) /* something there to forget */
    {
        if (current == null)
            head = LockFriend.getLink(head);
        else {
            Lock nextOne = LockFriend.getLink(current);
            if (nextOne != null)
                LockFriend.setLink(current, LockFriend.getLink(nextOne));
            else {
                /*
                     * Probably an error - being asked to forget element after
                     * end of list
                     */
                count++;
                LockFriend.setLink(current, null);
            /* force end of list */
            }
        }
        count--;
    }
}

Example 43 with Lock

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

the class AtomicObject method incr.

public void incr(int value) throws TestException {
    AtomicAction A = new AtomicAction();
    A.begin();
    if (setlock(new Lock(LockMode.WRITE), retry) == LockResult.GRANTED) {
        state += value;
        if (A.commit() != ActionStatus.COMMITTED)
            throw new TestException("Action commit error.");
        else
            return;
    } else {
        if (printDebug)
            System.out.println("Error - could not set write lock.");
    }
    A.abort();
    throw new TestException("Write lock error.");
}

Example 44 with Lock

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

the class AtomicObjectLog method set.

public void set(int value) throws TestException {
    AtomicAction A = new AtomicAction();
    A.begin();
    if (setlock(new Lock(LockMode.WRITE), 0) == LockResult.GRANTED) {
        state = value;
        if (A.commit() != ActionStatus.COMMITTED)
            throw new TestException("Action commit error.");
        else
            return;
    } else {
        if (printDebug)
            System.out.println("Error - could not set write lock.");
    }
    A.abort();
    throw new TestException("Write lock error.");
}

Example 45 with Lock

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

the class RecoverableObject method get.

public int get() {
    AtomicAction A = new AtomicAction();
    int value = -1;
    A.begin();
    if (setlock(new Lock(LockMode.READ)) == LockResult.GRANTED) {
        value = state;
        if (A.commit() == ActionStatus.COMMITTED)
            return value;
        else
            return -1;
    }
    A.abort();
    return -1;
}