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

Example 56 with ObjectReference

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

the class HeapEntry method toString.

@Override
public String toString() {
    String result = String.format("Heap entry: id=%s, ", id, ObjectModel.getString(object));
    result += String.format("incoming pointers: %n");
    for (ObjectReference ref : getReferrers()) {
        result += String.format(" %s%n", ref);
    }
    return result;
}

Example 57 with ObjectReference

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

the class ObjectTable method trimToLiveSet.

/**
 * After the first pass of the sanity checker, we know exactly which objects are live.
 * Use this set to trim the set of valid objects after a full-heap collection.
 *
 * @param liveSet The known live objects
 */
public void trimToLiveSet(Set<ObjectReference> liveSet) {
    int removed = 0;
    Iterator<ObjectReference> iterator = objects.keySet().iterator();
    while (iterator.hasNext()) {
        ObjectReference current = iterator.next();
        if (!liveSet.contains(current)) {
            Entry entry = objects.get(current);
            if (VERBOSE || ObjectModel.isWatched(current)) {
                Trace.printf(Item.SANITY, "Object death: %s", entry.formatHistory());
            }
            entry.kill();
        }
        removed++;
    }
    Trace.trace(Item.SANITY, "Trimmed %d dead objects from object table", removed);
}

Example 58 with ObjectReference

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

the class Traversal method scan.

/**
 * Scan an object, calling the appropriate visitor method
 * @param object
 */
private void scan(ObjectReference object) {
    if (VERBOSE) {
        Trace.trace(Item.SANITY, "scanning object %s", ObjectModel.getString(object));
    }
    for (int i = 0; i < ObjectModel.getRefs(object); i++) {
        Address slot = ObjectModel.getRefSlot(object, i);
        ObjectReference ref = loadReferenceSlot(slot);
        if (!ref.isNull()) {
            visitor.visitPointer(object, slot, ref);
            traceObject(ref, false);
        }
    }
}

Example 59 with ObjectReference

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

the class AllocOp method exec.

@Override
public void exec(Env env) {
    StackFrame frame = env.top();
    ObjectReference object;
    try {
        object = env.alloc(getRefCount(frame), getDataCount(frame), getDoubleAlign(frame), site);
    } catch (OutOfMemory e) {
        throw e;
    } catch (Exception e) {
        throw new RuntimeException("Error allocating object id:" + ObjectModel.lastObjectId() + " refs:" + getRefCount(frame) + " ints: " + getDataCount(frame) + " align:" + getDoubleAlign(frame) + " site:" + site, e);
    }
    setResult(frame, new ObjectValue(object));
    if (Harness.gcEveryAlloc()) {
        env.gc();
    }
}

Example 60 with ObjectReference

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

the class Barriers method booleanFieldWrite.

/**
 * Barrier for writes of booleans into fields of instances (i.e. putfield).
 *
 * @param ref the object which is the subject of the putfield
 * @param value the new value for the field
 * @param offset the offset of the field to be modified
 * @param locationMetadata an int that encodes the source location being modified
 */
@Inline
@Entrypoint
public static void booleanFieldWrite(Object ref, boolean value, Offset offset, int locationMetadata) {
    if (NEEDS_BOOLEAN_GC_WRITE_BARRIER) {
        ObjectReference src = ObjectReference.fromObject(ref);
        Selected.Mutator.get().booleanWrite(src, src.toAddress().plus(offset), value, offset.toWord(), Word.fromIntZeroExtend(locationMetadata), INSTANCE_FIELD);
    } else if (VM.VerifyAssertions)
        VM._assert(VM.NOT_REACHED);
}