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

Example 31 with Lock

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

the class ExplicitStackImple method push.

public int push(int 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 push interposed transaction: " + name);
    name = null;
    try {
        A.begin();
        if (setlock(new Lock(LockMode.WRITE), 0) == LockResult.GRANTED) {
            if (top < ARRAY_SIZE) {
                array[top] = val;
                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 32 with Lock

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

the class ExplicitStackImple 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 33 with Lock

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

the class StackImple method push.

public int push(int val) throws SystemException {
    AtomicTransaction A = new AtomicTransaction();
    int res = 0;
    try {
        A.begin();
        if (setlock(new Lock(LockMode.WRITE), 0) == LockResult.GRANTED) {
            if (top < ARRAY_SIZE) {
                array[top] = val;
                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;
    }
    return res;
}

Example 34 with Lock

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

the class StackImple method pop.

public int pop(IntHolder val) throws SystemException {
    AtomicTransaction A = new AtomicTransaction();
    int res = 0;
    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;
    }
    return res;
}

Example 35 with Lock

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

the class AtomicObject method get.

public synchronized int get() throws TestException {
    CurrentImple current = OTSImpleManager.current();
    int value = -1;
    try {
        current.begin();
        if (setlock(new Lock(LockMode.READ), 5) == LockResult.GRANTED) {
            value = _value;
            current.commit(false);
            return value;
        } else {
            current.rollback();
            throw new TestException("Could not setlock");
        }
    } catch (Exception e) {
        throw new TestException(e);
    }
}