truffle: src/share/vm/gc_implementation/g1/g1RemSet.hpp annotate

annotate src/share/vm/gc_implementation/g1/g1RemSet.hpp @ 1972:f95d63e2154a

6989984: Use standard include model for Hospot Summary: Replaced MakeDeps and the includeDB files with more standardized solutions. Reviewed-by: coleenp, kvn, kamg

author	stefank
date	Tue, 23 Nov 2010 13:22:55 -0800
parents	878b57474103
children	e8b0b0392037

rev	line source
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	1 /*
1705 2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	2 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	4 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	7 * published by the Free Software Foundation.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	8 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	13 * accompanied this code).
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	14 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 890 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 890 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 890 diff changeset	21 * questions.
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	22 *
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	23 */
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	24
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1960 diff changeset	25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSET_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1960 diff changeset	26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSET_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1960 diff changeset	27
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	28 // A G1RemSet provides ways of iterating over pointers into a selected
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	29 // collection set.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	30
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	31 class G1CollectedHeap;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	32 class CardTableModRefBarrierSet;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	33 class ConcurrentG1Refine;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	34
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	35 // A G1RemSet in which each heap region has a rem set that records the
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	36 // external heap references into it. Uses a mod ref bs to track updates,
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	37 // so that they can be used to update the individual region remsets.
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	38
549 fe3d7c11b4b7 6700941: G1: allocation spec missing for some G1 classes apetrusenko parents: 342 diff changeset	39 class G1RemSet: public CHeapObj {
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	40 protected:
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	41 G1CollectedHeap* _g1;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	42 unsigned _conc_refine_cards;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	43 size_t n_workers();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	44
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	45 protected:
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	46 enum SomePrivateConstants {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	47 UpdateRStoMergeSync = 0,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	48 MergeRStoDoDirtySync = 1,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	49 DoDirtySync = 2,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	50 LastSync = 3,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	51
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	52 SeqTask = 0,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	53 NumSeqTasks = 1
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	54 };
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	55
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	56 CardTableModRefBS* _ct_bs;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	57 SubTasksDone* _seq_task;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	58 G1CollectorPolicy* _g1p;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	59
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	60 ConcurrentG1Refine* _cg1r;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	61
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	62 size_t* _cards_scanned;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	63 size_t _total_cards_scanned;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	64
1705 2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	65 // Used for caching the closure that is responsible for scanning
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	66 // references into the collection set.
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	67 OopsInHeapRegionClosure** _cset_rs_update_cl;
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 794 diff changeset	68
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 845 diff changeset	69 // The routine that performs the actual work of refining a dirty
6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 845 diff changeset	70 // card.
1705 2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	71 // If check_for_refs_into_refs is true then a true result is returned
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	72 // if the card contains oops that have references into the current
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	73 // collection set.
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	74 bool concurrentRefineOneCard_impl(jbyte* card_ptr, int worker_i,
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	75 bool check_for_refs_into_cset);
890 6cb8e9df7174 6819077: G1: first GC thread coming late into the GC. johnc parents: 845 diff changeset	76
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	77 public:
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	78 // This is called to reset dual hash tables after the gc pause
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	79 // is finished and the initial hash table is no longer being
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	80 // scanned.
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	81 void cleanupHRRS();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	82
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	83 G1RemSet(G1CollectedHeap* g1, CardTableModRefBS* ct_bs);
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	84 ~G1RemSet();
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	85
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	86 // Invoke "blk->do_oop" on all pointers into the CS in objects in regions
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	87 // outside the CS (having invoked "blk->set_region" to set the "from"
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	88 // region correctly beforehand.) The "worker_i" param is for the
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	89 // parallel case where the number of the worker thread calling this
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	90 // function can be helpful in partitioning the work to be done. It
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	91 // should be the same as the "i" passed to the calling thread's
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	92 // work(i) function. In the sequential case this param will be ingored.
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	93 void oops_into_collection_set_do(OopsInHeapRegionClosure* blk,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	94 int worker_i);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	95
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	96 // Prepare for and cleanup after an oops_into_collection_set_do
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	97 // call. Must call each of these once before and after (in sequential
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	98 // code) any threads call oops_into_collection_set_do. (This offers an
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	99 // opportunity to sequential setup and teardown of structures needed by a
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	100 // parallel iteration over the CS's RS.)
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	101 void prepare_for_oops_into_collection_set_do();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	102 void cleanup_after_oops_into_collection_set_do();
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	103
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	104 void scanRS(OopsInHeapRegionClosure* oc, int worker_i);
1705 2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	105 void updateRS(DirtyCardQueue* into_cset_dcq, int worker_i);
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	106
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	107 HeapRegion* calculateStartRegion(int i);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	108
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	109 CardTableModRefBS* ct_bs() { return _ct_bs; }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	110 size_t cardsScanned() { return _total_cards_scanned; }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	111
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	112 // Record, if necessary, the fact that *p (where "p" is in region "from",
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	113 // which is required to be non-NULL) has changed to a new non-NULL value.
1960 878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	114 template <class T> void write_ref(HeapRegion* from, T* p);
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	115 template <class T> void par_write_ref(HeapRegion* from, T* p, int tid);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	116
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	117 // Requires "region_bm" and "card_bm" to be bitmaps with 1 bit per region
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	118 // or card, respectively, such that a region or card with a corresponding
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	119 // 0 bit contains no part of any live object. Eliminates any remembered
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	120 // set entries that correspond to dead heap ranges.
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	121 void scrub(BitMap* region_bm, BitMap* card_bm);
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	122
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	123 // Like the above, but assumes is called in parallel: "worker_num" is the
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	124 // parallel thread id of the current thread, and "claim_val" is the
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	125 // value that should be used to claim heap regions.
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	126 void scrub_par(BitMap* region_bm, BitMap* card_bm,
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	127 int worker_num, int claim_val);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	128
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	129 // Refine the card corresponding to "card_ptr". If "sts" is non-NULL,
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	130 // join and leave around parts that must be atomic wrt GC. (NULL means
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	131 // being done at a safepoint.)
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	132 // If check_for_refs_into_cset is true, a true result is returned
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	133 // if the given card contains oops that have references into the
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	134 // current collection set.
1705 2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	135 virtual bool concurrentRefineOneCard(jbyte* card_ptr, int worker_i,
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	136 bool check_for_refs_into_cset);
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	137
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	138 // Print any relevant summary info.
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	139 virtual void print_summary_info();
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	140
c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	141 // Prepare remembered set for verification.
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	142 virtual void prepare_for_verify();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	143 };
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	144
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	145 #define G1_REM_SET_LOGGING 0
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	146
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	147 class CountNonCleanMemRegionClosure: public MemRegionClosure {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	148 G1CollectedHeap* _g1;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	149 int _n;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	150 HeapWord* _start_first;
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	151 public:
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	152 CountNonCleanMemRegionClosure(G1CollectedHeap* g1) :
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	153 _g1(g1), _n(0), _start_first(NULL)
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	154 {}
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	155 void do_MemRegion(MemRegion mr);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	156 int n() { return _n; };
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	157 HeapWord* start_first() { return _start_first; }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: diff changeset	158 };
626 87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	159
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	160 class UpdateRSOopClosure: public OopClosure {
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	161 HeapRegion* _from;
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	162 G1RemSet* _rs;
626 87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	163 int _worker_i;
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 794 diff changeset	164
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 794 diff changeset	165 template <class T> void do_oop_work(T* p);
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 794 diff changeset	166
626 87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	167 public:
1861 c32059ef4dc0 6971296: G1: simplify G1RemSet class hierarchy johnc parents: 1708 diff changeset	168 UpdateRSOopClosure(G1RemSet* rs, int worker_i = 0) :
1960 878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	169 _from(NULL), _rs(rs), _worker_i(worker_i)
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	170 {}
626 87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	171
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	172 void set_from(HeapRegion* from) {
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	173 assert(from != NULL, "from region must be non-NULL");
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	174 _from = from;
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	175 }
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	176
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 794 diff changeset	177 virtual void do_oop(narrowOop* p) { do_oop_work(p); }
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 794 diff changeset	178 virtual void do_oop(oop* p) { do_oop_work(p); }
626 87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	179
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	180 // Override: this closure is idempotent.
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	181 // bool idempotent() { return true; }
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	182 bool apply_to_weak_ref_discovered_field() { return true; }
87fa6e083d82 6760309: G1: update remembered sets during Full GCs apetrusenko parents: 616 diff changeset	183 };
1705 2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	184
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	185 class UpdateRSetImmediate: public OopsInHeapRegionClosure {
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	186 private:
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	187 G1RemSet* _g1_rem_set;
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	188
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	189 template <class T> void do_oop_work(T* p);
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	190 public:
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	191 UpdateRSetImmediate(G1RemSet* rs) :
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	192 _g1_rem_set(rs) {}
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	193
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	194 virtual void do_oop(narrowOop* p) { do_oop_work(p); }
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	195 virtual void do_oop( oop* p) { do_oop_work(p); }
2d160770d2e5 6814437: G1: remove the _new_refs array johnc parents: 1552 diff changeset	196 };
1960 878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	197
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	198 class UpdateRSOrPushRefOopClosure: public OopClosure {
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	199 G1CollectedHeap* _g1;
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	200 G1RemSet* _g1_rem_set;
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	201 HeapRegion* _from;
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	202 OopsInHeapRegionClosure* _push_ref_cl;
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	203 bool _record_refs_into_cset;
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	204 int _worker_i;
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	205
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	206 template <class T> void do_oop_work(T* p);
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	207
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	208 public:
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	209 UpdateRSOrPushRefOopClosure(G1CollectedHeap* g1h,
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	210 G1RemSet* rs,
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	211 OopsInHeapRegionClosure* push_ref_cl,
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	212 bool record_refs_into_cset,
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	213 int worker_i = 0) :
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	214 _g1(g1h),
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	215 _g1_rem_set(rs),
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	216 _from(NULL),
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	217 _record_refs_into_cset(record_refs_into_cset),
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	218 _push_ref_cl(push_ref_cl),
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	219 _worker_i(worker_i) { }
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	220
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	221 void set_from(HeapRegion* from) {
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	222 assert(from != NULL, "from region must be non-NULL");
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	223 _from = from;
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	224 }
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	225
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	226 bool self_forwarded(oop obj) {
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	227 bool result = (obj->is_forwarded() && (obj->forwardee()== obj));
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	228 return result;
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	229 }
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	230
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	231 virtual void do_oop(narrowOop* p) { do_oop_work(p); }
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	232 virtual void do_oop(oop* p) { do_oop_work(p); }
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	233
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	234 bool apply_to_weak_ref_discovered_field() { return true; }
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	235 };
878b57474103 6978187: G1: assert(ParallelGCThreads> 1 \|\| n_yielded() == _hrrs->occupied()) strikes again johnc parents: 1861 diff changeset	236
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1960 diff changeset	237
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1960 diff changeset	238 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1REMSET_HPP

Mercurial > hg > truffle

annotate src/share/vm/gc_implementation/g1/g1RemSet.hpp @ 1972:f95d63e2154a