Examples with ObjectReference org.vmmagic.unboxed.ObjectReference used on opensource projects

Example 41 with ObjectReference

use of org.vmmagic.unboxed.ObjectReference in project JikesRVM by JikesRVM.

the class StoreFieldOp method exec.

@Override
public void exec(Env env) {
    Clock.assertStarted();
    StackFrame frame = env.top();
    int fieldIndex = getIndex(frame);
    ObjectReference object = getObjectObj(frame);
    if (fieldType == Type.INT) {
        env.storeDataField(object, fieldIndex, getValInt(frame));
    } else if (fieldType == Type.OBJECT) {
        env.storeReferenceField(object, fieldIndex, getValObject(frame));
    }
}

Example 42 with ObjectReference

use of org.vmmagic.unboxed.ObjectReference in project JikesRVM by JikesRVM.

the class StoreFixedFieldOp method exec.

@Override
public void exec(Env env) {
    StackFrame frame = env.top();
    ObjectReference object = getObjectObj(frame);
    if (fieldType == Type.INT) {
        env.storeDataField(object, index, getValInt(frame));
    } else if (fieldType == Type.OBJECT) {
        env.storeReferenceField(object, index, getValObject(frame));
    }
}

Example 43 with ObjectReference

use of org.vmmagic.unboxed.ObjectReference in project JikesRVM by JikesRVM.

the class BumpPointer method scanRegion.

/**
 * Perform a linear scan through a single contiguous region
 *
 * @param scanner The scan object to delegate to.
 * @param start The start of this region
 */
@Inline
private void scanRegion(LinearScan scanner, Address start) {
    /* Get the end of this region */
    Address dataEnd = start.plus(DATA_END_OFFSET).loadAddress();
    /* dataEnd = zero represents the current region. */
    Address currentLimit = (dataEnd.isZero() ? cursor : dataEnd);
    if (currentLimit.EQ(start.plus(DATA_END_OFFSET).plus(BYTES_IN_ADDRESS))) {
        /* Empty region, so we can not call getObjectFromStartAddress() */
        return;
    }
    ObjectReference current = VM.objectModel.getObjectFromStartAddress(start.plus(DATA_START_OFFSET));
    /* Loop through each object up to the limit */
    do {
        /* Read end address first, as scan may be destructive */
        Address currentObjectEnd = VM.objectModel.getObjectEndAddress(current);
        scanner.scan(current);
        if (currentObjectEnd.GE(currentLimit)) {
            /* We have scanned the last object */
            break;
        }
        /* Find the next object from the start address (dealing with alignment gaps, etc.) */
        ObjectReference next = VM.objectModel.getObjectFromStartAddress(currentObjectEnd);
        if (VM.VERIFY_ASSERTIONS) {
            /* Must be monotonically increasing */
            VM.assertions._assert(next.toAddress().GT(current.toAddress()));
        }
        current = next;
    } while (true);
}

Example 44 with ObjectReference

use of org.vmmagic.unboxed.ObjectReference in project JikesRVM by JikesRVM.

the class ObjectModel method copyScalar.

@Inline
private ObjectReference copyScalar(ObjectReference from, TIB tib, RVMClass type, int allocator) {
    int bytes = org.jikesrvm.objectmodel.ObjectModel.bytesRequiredWhenCopied(from.toObject(), type);
    int align = org.jikesrvm.objectmodel.ObjectModel.getAlignment(type, from.toObject());
    int offset = org.jikesrvm.objectmodel.ObjectModel.getOffsetForAlignment(type, from);
    CollectorContext context = VM.activePlan.collector();
    allocator = context.copyCheckAllocator(from, bytes, align, allocator);
    Address region = MemoryManager.allocateSpace(context, bytes, align, offset, allocator, from);
    Object toObj = org.jikesrvm.objectmodel.ObjectModel.moveObject(region, from.toObject(), bytes, type);
    ObjectReference to = ObjectReference.fromObject(toObj);
    context.postCopy(to, ObjectReference.fromObject(tib), bytes, allocator);
    return to;
}

Example 45 with ObjectReference

use of org.vmmagic.unboxed.ObjectReference in project JikesRVM by JikesRVM.

the class ObjectModel method copyArray.

@Inline
private ObjectReference copyArray(ObjectReference from, TIB tib, RVMArray type, int allocator) {
    int elements = Magic.getArrayLength(from.toObject());
    int bytes = org.jikesrvm.objectmodel.ObjectModel.bytesRequiredWhenCopied(from.toObject(), type, elements);
    int align = org.jikesrvm.objectmodel.ObjectModel.getAlignment(type, from.toObject());
    int offset = org.jikesrvm.objectmodel.ObjectModel.getOffsetForAlignment(type, from);
    CollectorContext context = VM.activePlan.collector();
    allocator = context.copyCheckAllocator(from, bytes, align, allocator);
    Address region = MemoryManager.allocateSpace(context, bytes, align, offset, allocator, from);
    Object toObj = org.jikesrvm.objectmodel.ObjectModel.moveObject(region, from.toObject(), bytes, type);
    ObjectReference to = ObjectReference.fromObject(toObj);
    context.postCopy(to, ObjectReference.fromObject(tib), bytes, allocator);
    if (type == RVMType.CodeArrayType) {
        // sync all moved code arrays to get icache and dcache in sync
        // immediately.
        int dataSize = bytes - org.jikesrvm.objectmodel.ObjectModel.computeHeaderSize(Magic.getObjectType(toObj));
        org.jikesrvm.runtime.Memory.sync(to.toAddress(), dataSize);
    }
    return to;
}