5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 // A "G1CollectedHeap" is an implementation of a java heap for HotSpot.
26 // It uses the "Garbage First" heap organization and algorithm, which
27 // may combine concurrent marking with parallel, incremental compaction of
28 // heap subsets that will yield large amounts of garbage.
29
30 class HeapRegion;
31 class HeapRegionSeq;
32 class PermanentGenerationSpec;
33 class GenerationSpec;
34 class OopsInHeapRegionClosure;
35 class G1ScanHeapEvacClosure;
36 class ObjectClosure;
37 class SpaceClosure;
38 class CompactibleSpaceClosure;
39 class Space;
40 class G1CollectorPolicy;
41 class GenRemSet;
42 class G1RemSet;
43 class HeapRegionRemSetIterator;
44 class ConcurrentMark;
1781 // "obj_to_scan" is definitely in the heap, and is not in a
1782 // humongous region.
1783 HeapRegion* r = _g1h->heap_region_containing_raw(ref_to_scan);
1784 _evac_cl->set_region(r);
1785 _evac_cl->do_oop_nv(ref_to_scan);
1786 }
1787 }
1788
1789 void deal_with_reference(StarTask ref) {
1790 assert(verify_task(ref), "sanity");
1791 if (ref.is_narrow()) {
1792 deal_with_reference((narrowOop*)ref);
1793 } else {
1794 deal_with_reference((oop*)ref);
1795 }
1796 }
1797
1798 public:
1799 void trim_queue();
1800 };
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5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_HPP
26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_HPP
27
28 #include "gc_implementation/g1/concurrentMark.hpp"
29 #include "gc_implementation/g1/g1RemSet.hpp"
30 #include "gc_implementation/g1/heapRegion.hpp"
31 #include "gc_implementation/parNew/parGCAllocBuffer.hpp"
32 #include "memory/barrierSet.hpp"
33 #include "memory/memRegion.hpp"
34 #include "memory/sharedHeap.hpp"
35
36 // A "G1CollectedHeap" is an implementation of a java heap for HotSpot.
37 // It uses the "Garbage First" heap organization and algorithm, which
38 // may combine concurrent marking with parallel, incremental compaction of
39 // heap subsets that will yield large amounts of garbage.
40
41 class HeapRegion;
42 class HeapRegionSeq;
43 class PermanentGenerationSpec;
44 class GenerationSpec;
45 class OopsInHeapRegionClosure;
46 class G1ScanHeapEvacClosure;
47 class ObjectClosure;
48 class SpaceClosure;
49 class CompactibleSpaceClosure;
50 class Space;
51 class G1CollectorPolicy;
52 class GenRemSet;
53 class G1RemSet;
54 class HeapRegionRemSetIterator;
55 class ConcurrentMark;
1792 // "obj_to_scan" is definitely in the heap, and is not in a
1793 // humongous region.
1794 HeapRegion* r = _g1h->heap_region_containing_raw(ref_to_scan);
1795 _evac_cl->set_region(r);
1796 _evac_cl->do_oop_nv(ref_to_scan);
1797 }
1798 }
1799
1800 void deal_with_reference(StarTask ref) {
1801 assert(verify_task(ref), "sanity");
1802 if (ref.is_narrow()) {
1803 deal_with_reference((narrowOop*)ref);
1804 } else {
1805 deal_with_reference((oop*)ref);
1806 }
1807 }
1808
1809 public:
1810 void trim_queue();
1811 };
1812
1813 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1COLLECTEDHEAP_HPP
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