Examples with VoidPointer com.ibm.j9ddr.vm29.pointer.VoidPointer used on opensource projects

Example 6 with VoidPointer

use of com.ibm.j9ddr.vm29.pointer.VoidPointer in project openj9 by eclipse.

the class GCArrayletObjectModelBase_V1 method getElementAddress.

@Override
public VoidPointer getElementAddress(J9IndexableObjectPointer array, int elementIndex, int elementSize) throws CorruptDataException {
    boolean isInlineContiguous = isInlineContiguousArraylet(array);
    UDATA byteOffsetIntoData = new UDATA(elementIndex * (long) elementSize);
    if (isInlineContiguous) {
        return VoidPointer.cast(getDataPointerForContiguous(array).addOffset(byteOffsetIntoData));
    } else {
        ObjectReferencePointer arrayoid = getArrayoidPointer(array);
        UDATA arrayletIndex = byteOffsetIntoData.rightShift(arrayletLeafLogSize);
        VoidPointer arrayletLeafBaseAddress = VoidPointer.cast(arrayoid.at(arrayletIndex));
        if (arrayletLeafBaseAddress.isNull()) {
            /* this can happen if the arraylet wasn't fully initialized */
            throw new NoSuchElementException("Arraylet leaf not yet initialized");
        }
        UDATA indexIntoArraylet = byteOffsetIntoData.bitAnd(arrayletLeafSizeMask);
        return arrayletLeafBaseAddress.addOffset(indexIntoArraylet);
    }
}

Example 7 with VoidPointer

use of com.ibm.j9ddr.vm29.pointer.VoidPointer in project openj9 by eclipse.

the class GCClassLocalInterfaceIterator method nextAddress.

public VoidPointer nextAddress() {
    if (hasNext()) {
        try {
            VoidPointer next = VoidPointer.cast(iTable.interfaceClassEA());
            iTable = iTable.next();
            return next;
        } catch (CorruptDataException e) {
            // can try to recover from this
            raiseCorruptDataEvent("Error getting next item", e, false);
            return null;
        }
    } else {
        throw new NoSuchElementException("There are no more items available through this iterator");
    }
}

Example 8 with VoidPointer

use of com.ibm.j9ddr.vm29.pointer.VoidPointer in project openj9 by eclipse.

the class GCCardTable method cleanRange.

public void cleanRange(U8Pointer lowCard, U8Pointer highCard, GCCardCleaner cardCleaner) throws CorruptDataException {
    U8Pointer thisCard = lowCard;
    U8Pointer endCard = highCard;
    while (thisCard.lt(endCard)) {
        try {
            U8 card = thisCard.at(0);
            if (!card.eq(J9ModroncoreConstants.CARD_CLEAN)) {
                VoidPointer lowAddress = cardAddrToHeapAddr(thisCard);
                VoidPointer highAddress = lowAddress.addOffset(J9ModroncoreConstants.CARD_SIZE);
                cardCleaner.clean(lowAddress, highAddress, thisCard);
            }
        } catch (CorruptDataException cde) {
            raiseCorruptDataEvent("Corrupt Card", cde, false);
        }
        thisCard = thisCard.add(1);
    }
}

Example 9 with VoidPointer

use of com.ibm.j9ddr.vm29.pointer.VoidPointer in project openj9 by eclipse.

the class GCMixedObjectIterator_V1 method nextAddress.

public VoidPointer nextAddress() {
    try {
        if (hasNext()) {
            if (object != null && includeClassSlot) {
                includeClassSlot = false;
                return VoidPointer.cast(J9ObjectHelper.clazz(object).classObjectEA());
            }
            VoidPointer next = VoidPointer.cast(data.add(scanIndex));
            scanIndex++;
            return next;
        } else {
            throw new NoSuchElementException("There are no more items available through this iterator");
        }
    } catch (CorruptDataException e) {
        // can try to recover from this
        raiseCorruptDataEvent("Error getting next item", e, false);
        return null;
    }
}

Example 10 with VoidPointer

use of com.ibm.j9ddr.vm29.pointer.VoidPointer in project openj9 by eclipse.

the class GCVMThreadMonitorRecordSlotIterator method nextAddress.

public VoidPointer nextAddress() {
    if (hasNext()) {
        try {
            VoidPointer next;
            if (monitorRecord.notNull()) {
                next = VoidPointer.cast(monitorRecord.objectEA());
                monitorRecord = monitorRecord.next();
            } else {
                next = VoidPointer.cast(jniMonitorRecord.objectEA());
                jniMonitorRecord = jniMonitorRecord.next();
            }
            return next;
        } catch (CorruptDataException e) {
            // can try to recover from this
            raiseCorruptDataEvent("Error getting next item", e, false);
            return null;
        }
    } else {
        throw new NoSuchElementException("There are no more items available through this iterator");
    }
}