Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/g1/g1RemSet.inline.hpp @ 20223:b0c374311c4e
8035400: Move G1ParScanThreadState into its own files
Summary: Extract the G1ParScanThreadState class from G1CollectedHeap.?pp into its own files.
Reviewed-by: brutisso, mgerdin
| author | tschatzl |
|---|---|
| date | Mon, 21 Jul 2014 09:41:04 +0200 |
| parents | b4ebad3520bb |
| children | eec72fa4b108 |
| rev | line source |
|---|---|
| 342 | 1 /* |
| 4839 | 2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved. |
| 342 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 342 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSET_INLINE_HPP |
| 26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSET_INLINE_HPP | |
| 27 | |
| 28 #include "gc_implementation/g1/g1RemSet.hpp" | |
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29 #include "gc_implementation/g1/heapRegion.hpp" |
| 1972 | 30 #include "gc_implementation/g1/heapRegionRemSet.hpp" |
| 31 #include "oops/oop.inline.hpp" | |
| 32 | |
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33 inline uint G1RemSet::n_workers() { |
| 342 | 34 if (_g1->workers() != NULL) { |
| 35 return _g1->workers()->total_workers(); | |
| 36 } else { | |
| 37 return 1; | |
| 38 } | |
| 39 } | |
| 40 | |
| 1861 | 41 template <class T> |
|
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42 inline void G1RemSet::write_ref(HeapRegion* from, T* p) { |
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43 par_write_ref(from, p, 0); |
| 342 | 44 } |
| 45 | |
| 1861 | 46 template <class T> |
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47 inline void G1RemSet::par_write_ref(HeapRegion* from, T* p, int tid) { |
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48 oop obj = oopDesc::load_decode_heap_oop(p); |
| 342 | 49 #ifdef ASSERT |
| 50 // can't do because of races | |
| 51 // assert(obj == NULL || obj->is_oop(), "expected an oop"); | |
| 52 | |
| 53 // Do the safe subset of is_oop | |
| 54 if (obj != NULL) { | |
| 55 #ifdef CHECK_UNHANDLED_OOPS | |
| 56 oopDesc* o = obj.obj(); | |
| 57 #else | |
| 58 oopDesc* o = obj; | |
| 59 #endif // CHECK_UNHANDLED_OOPS | |
| 60 assert((intptr_t)o % MinObjAlignmentInBytes == 0, "not oop aligned"); | |
| 61 assert(Universe::heap()->is_in_reserved(obj), "must be in heap"); | |
| 62 } | |
| 63 #endif // ASSERT | |
| 1705 | 64 |
| 65 assert(from == NULL || from->is_in_reserved(p), "p is not in from"); | |
| 66 | |
| 342 | 67 HeapRegion* to = _g1->heap_region_containing(obj); |
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68 if (to != NULL && from != to) { |
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69 assert(to->rem_set() != NULL, "Need per-region 'into' remsets."); |
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70 to->rem_set()->add_reference(p, tid); |
| 342 | 71 } |
| 72 } | |
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73 |
| 1861 | 74 template <class T> |
| 75 inline void UpdateRSOopClosure::do_oop_work(T* p) { | |
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76 assert(_from != NULL, "from region must be non-NULL"); |
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77 _rs->par_write_ref(_from, p, _worker_i); |
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78 } |
| 1705 | 79 |
| 1861 | 80 template <class T> |
| 81 inline void UpdateRSetImmediate::do_oop_work(T* p) { | |
| 1705 | 82 assert(_from->is_in_reserved(p), "paranoia"); |
| 83 T heap_oop = oopDesc::load_heap_oop(p); | |
| 84 if (!oopDesc::is_null(heap_oop) && !_from->is_survivor()) { | |
| 85 _g1_rem_set->par_write_ref(_from, p, 0); | |
| 86 } | |
| 87 } | |
| 88 | |
| 1972 | 89 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSET_INLINE_HPP |