Mercurial > jdk8-mips64-public > hotspot / file diff

     1.1 --- a/src/share/vm/gc_implementation/g1/heapRegionSet.cpp	Tue Aug 19 10:50:27 2014 +0200
     1.2 +++ b/src/share/vm/gc_implementation/g1/heapRegionSet.cpp	Thu Aug 21 11:47:10 2014 +0200
     1.3 @@ -403,3 +403,41 @@
     1.4                "master humongous set MT safety protocol outside a safepoint");
     1.5    }
     1.6  }
     1.7 +
     1.8 +void FreeRegionList_test() {
     1.9 +  FreeRegionList l("test");
    1.10 +
    1.11 +  const uint num_regions_in_test = 5;
    1.12 +  // Create a fake heap. It does not need to be valid, as the HeapRegion constructor
    1.13 +  // does not access it.
    1.14 +  MemRegion heap(NULL, num_regions_in_test * HeapRegion::GrainWords);
    1.15 +  // Allocate a fake BOT because the HeapRegion constructor initializes
    1.16 +  // the BOT.
    1.17 +  size_t bot_size = G1BlockOffsetSharedArray::compute_size(heap.word_size());
    1.18 +  HeapWord* bot_data = NEW_C_HEAP_ARRAY(HeapWord, bot_size, mtGC);
    1.19 +  ReservedSpace bot_rs(G1BlockOffsetSharedArray::compute_size(heap.word_size()));
    1.20 +  G1RegionToSpaceMapper* bot_storage =
    1.21 +    G1RegionToSpaceMapper::create_mapper(bot_rs,
    1.22 +                                         os::vm_page_size(),
    1.23 +                                         HeapRegion::GrainBytes,
    1.24 +                                         G1BlockOffsetSharedArray::N_bytes,
    1.25 +                                         mtGC);
    1.26 +  G1BlockOffsetSharedArray oa(heap, bot_storage);
    1.27 +  bot_storage->commit_regions(0, num_regions_in_test);
    1.28 +  HeapRegion hr0(0, &oa, heap);
    1.29 +  HeapRegion hr1(1, &oa, heap);
    1.30 +  HeapRegion hr2(2, &oa, heap);
    1.31 +  HeapRegion hr3(3, &oa, heap);
    1.32 +  HeapRegion hr4(4, &oa, heap);
    1.33 +  l.add_ordered(&hr1);
    1.34 +  l.add_ordered(&hr0);
    1.35 +  l.add_ordered(&hr3);
    1.36 +  l.add_ordered(&hr4);
    1.37 +  l.add_ordered(&hr2);
    1.38 +  assert(l.length() == num_regions_in_test, "wrong length");
    1.39 +  l.verify_list();
    1.40 +
    1.41 +  bot_storage->uncommit_regions(0, num_regions_in_test);
    1.42 +  delete bot_storage;
    1.43 +  FREE_C_HEAP_ARRAY(HeapWord, bot_data, mtGC);
    1.44 +}