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

Example 61 with VoidPointer

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

the class DTFJJavaRuntime method getHeapFromAddress.

/* 
	 * Returns the JavaHeap which contains the passed-in address
	 * Returns null if no containing JavaHeap is found
	 */
@SuppressWarnings("rawtypes")
public DTFJJavaHeap getHeapFromAddress(ImagePointer address) {
    try {
        VoidPointer pointer = VoidPointer.cast(address.getAddress());
        Iterator heapsIterator = getHeaps();
        while (heapsIterator.hasNext()) {
            DTFJJavaHeap heap = (DTFJJavaHeap) heapsIterator.next();
            Iterator sectionsIterator = heap.getSections();
            while (sectionsIterator.hasNext()) {
                ImageSection section = (ImageSection) sectionsIterator.next();
                VoidPointer base = VoidPointer.cast(section.getBaseAddress().getAddress());
                VoidPointer top = base.addOffset(section.getSize());
                if (pointer.gte(base) && pointer.lt(top)) {
                    // Object is within this section
                    return heap;
                }
            }
        }
    } catch (Throwable t) {
        // just log exceptions and allow it to fall through
        J9DDRDTFJUtils.handleAsCorruptDataException(DTFJContext.getProcess(), t);
    }
    return null;
}

Example 62 with VoidPointer

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

the class DTFJJavaRuntime method getHeaps.

@SuppressWarnings("rawtypes")
public Iterator getHeaps() throws UnsupportedOperationException {
    try {
        LinkedList<Object> heaps = new LinkedList<Object>();
        VoidPointer memorySpace = DTFJContext.getVm().defaultMemorySpace();
        MM_MemorySpacePointer defaultMemorySpace = MM_MemorySpacePointer.cast(memorySpace);
        U8Pointer namePtr = defaultMemorySpace._name();
        // MEMORY_SPACE_NAME_UNDEFINED
        String name = "No name";
        if (namePtr != null && namePtr != U8Pointer.NULL) {
            try {
                name = namePtr.getCStringAtOffset(0);
            } catch (com.ibm.j9ddr.CorruptDataException e) {
                name = "<<corrupt heap name>>";
            }
        }
        heaps.add(new DTFJJavaHeap(defaultMemorySpace, name, DTFJContext.getImagePointer(memorySpace.getAddress())));
        return heaps.iterator();
    } catch (Throwable t) {
        CorruptData cd = J9DDRDTFJUtils.handleAsCorruptData(DTFJContext.getProcess(), t);
        return corruptIterator(cd);
    }
}