static void countFree(Heap *heap, const void *ptr, size_t *numBytes)
{
size_t delta = mspace_usable_size(ptr) + HEAP_SOURCE_CHUNK_OVERHEAD;
assert(delta > 0);
if (delta < heap->bytesAllocated) {
heap->bytesAllocated -= delta;
} else {
heap->bytesAllocated = 0;
}
HeapSource* hs = gDvm.gcHeap->heapSource;
dvmHeapBitmapClearObjectBit(&hs->liveBits, ptr);
if (heap->objectsAllocated > 0) {
heap->objectsAllocated--;
}
*numBytes += delta;
}
void
test_bits()
{
HeapBitmap hb;
bool ok;
ok = dvmHeapBitmapInit(&hb, HEAP_BASE, HEAP_SIZE, "test");
assert(ok);
assert_empty(&hb);
/* Set the lowest address.
*/
dvmHeapBitmapSetObjectBit(&hb, HEAP_BASE);
assert(dvmHeapBitmapMayContainObject(&hb,
HEAP_BASE));
assert(!dvmHeapBitmapMayContainObject(&hb,
HEAP_BASE + HB_OBJECT_ALIGNMENT));
assert(!dvmHeapBitmapMayContainObject(&hb,
HEAP_BASE + HEAP_SIZE - HB_OBJECT_ALIGNMENT));
assert(!dvmHeapBitmapMayContainObject(&hb,
HEAP_BASE + HEAP_SIZE));
assert(dvmHeapBitmapIsObjectBitSet(&hb,
HEAP_BASE));
assert(!dvmHeapBitmapIsObjectBitSet(&hb,
HEAP_BASE + HB_OBJECT_ALIGNMENT));
assert(!dvmHeapBitmapIsObjectBitSet(&hb,
HEAP_BASE + HEAP_SIZE - HB_OBJECT_ALIGNMENT));
/* Set the highest address.
*/
dvmHeapBitmapSetObjectBit(&hb, HEAP_BASE + HEAP_SIZE - HB_OBJECT_ALIGNMENT);
assert(dvmHeapBitmapMayContainObject(&hb,
HEAP_BASE));
assert(dvmHeapBitmapMayContainObject(&hb,
HEAP_BASE + HB_OBJECT_ALIGNMENT));
assert(dvmHeapBitmapMayContainObject(&hb,
HEAP_BASE + HEAP_SIZE - HB_OBJECT_ALIGNMENT));
assert(!dvmHeapBitmapMayContainObject(&hb,
HEAP_BASE + HEAP_SIZE));
assert(dvmHeapBitmapIsObjectBitSet(&hb,
HEAP_BASE));
assert(!dvmHeapBitmapIsObjectBitSet(&hb,
HEAP_BASE + HB_OBJECT_ALIGNMENT));
assert(dvmHeapBitmapIsObjectBitSet(&hb,
HEAP_BASE + HEAP_SIZE - HB_OBJECT_ALIGNMENT));
/* Clear the lowest address.
*/
dvmHeapBitmapClearObjectBit(&hb, HEAP_BASE);
assert(!dvmHeapBitmapIsObjectBitSet(&hb,
HEAP_BASE));
assert(!dvmHeapBitmapIsObjectBitSet(&hb,
HEAP_BASE + HB_OBJECT_ALIGNMENT));
assert(dvmHeapBitmapIsObjectBitSet(&hb,
HEAP_BASE + HEAP_SIZE - HB_OBJECT_ALIGNMENT));
assert(!is_zeroed(&hb));
/* Clear the highest address.
*/
dvmHeapBitmapClearObjectBit(&hb,
HEAP_BASE + HEAP_SIZE - HB_OBJECT_ALIGNMENT);
assert(!dvmHeapBitmapIsObjectBitSet(&hb,
HEAP_BASE));
assert(!dvmHeapBitmapIsObjectBitSet(&hb,
HEAP_BASE + HB_OBJECT_ALIGNMENT));
assert(!dvmHeapBitmapIsObjectBitSet(&hb,
HEAP_BASE + HEAP_SIZE - HB_OBJECT_ALIGNMENT));
assert(is_zeroed(&hb));
/* Clean up.
*/
dvmHeapBitmapDelete(&hb);
}
