src/hotspot/share/gc/g1/heapRegionManager.inline.hpp

rev 51979 : imported patch 8071913-almost-done

*** 45,54 ****
--- 45,64 ----
    assert(hr != NULL, "sanity");
    assert(hr->hrm_index() == index, "sanity");
    return hr;
  }
  
+ inline HeapRegion* HeapRegionManager::at_or_null(uint index) const {
+   if (!is_available(index)) {
+     return NULL;
+   }
+   HeapRegion* hr = _regions.get_by_index(index);
+   assert(hr != NULL, "All available regions must have a HeapRegion but index %u has not.", index);
+   assert(hr->hrm_index() == index, "sanity");
+   return hr;
+ }
+ 
  inline HeapRegion* HeapRegionManager::next_region_in_humongous(HeapRegion* hr) const {
    uint index = hr->hrm_index();
    assert(is_available(index), "pre-condition");
    assert(hr->is_humongous(), "next_region_in_humongous should only be called for a humongous region.");
    index++;