Mercurial > hg > truffle
view src/share/vm/gc_implementation/g1/g1OopClosures.hpp @ 605:98cb887364d3
6810672: Comment typos
Summary: I have collected some typos I have found while looking at the code.
Reviewed-by: kvn, never
author | twisti |
---|---|
date | Fri, 27 Feb 2009 13:27:09 -0800 |
parents | 818efdefcc99 |
children | 0fbdb4381b99 |
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/* * Copyright 2001-2007 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ class HeapRegion; class G1CollectedHeap; class G1RemSet; class HRInto_G1RemSet; class G1RemSet; class ConcurrentMark; class DirtyCardToOopClosure; class CMBitMap; class CMMarkStack; class G1ParScanThreadState; // A class that scans oops in a given heap region (much as OopsInGenClosure // scans oops in a generation.) class OopsInHeapRegionClosure: public OopsInGenClosure { protected: HeapRegion* _from; public: virtual void set_region(HeapRegion* from) { _from = from; } }; class G1ScanAndBalanceClosure : public OopClosure { G1CollectedHeap* _g1; static int _nq; public: G1ScanAndBalanceClosure(G1CollectedHeap* g1) : _g1(g1) { } inline void do_oop_nv(oop* p); inline void do_oop_nv(narrowOop* p) { guarantee(false, "NYI"); } virtual void do_oop(oop* p); virtual void do_oop(narrowOop* p) { guarantee(false, "NYI"); } }; class G1ParClosureSuper : public OopsInHeapRegionClosure { protected: G1CollectedHeap* _g1; G1RemSet* _g1_rem; ConcurrentMark* _cm; G1ParScanThreadState* _par_scan_state; public: G1ParClosureSuper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state); bool apply_to_weak_ref_discovered_field() { return true; } }; class G1ParScanClosure : public G1ParClosureSuper { public: G1ParScanClosure(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) : G1ParClosureSuper(g1, par_scan_state) { } void do_oop_nv(oop* p); // should be made inline inline void do_oop_nv(narrowOop* p) { guarantee(false, "NYI"); } virtual void do_oop(oop* p) { do_oop_nv(p); } virtual void do_oop(narrowOop* p) { do_oop_nv(p); } }; #define G1_PARTIAL_ARRAY_MASK 1 inline bool has_partial_array_mask(oop* ref) { return (intptr_t) ref & G1_PARTIAL_ARRAY_MASK; } inline oop* set_partial_array_mask(oop obj) { return (oop*) ((intptr_t) obj | G1_PARTIAL_ARRAY_MASK); } inline oop clear_partial_array_mask(oop* ref) { return oop((intptr_t) ref & ~G1_PARTIAL_ARRAY_MASK); } class G1ParScanPartialArrayClosure : public G1ParClosureSuper { G1ParScanClosure _scanner; template <class T> void process_array_chunk(oop obj, int start, int end); public: G1ParScanPartialArrayClosure(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) : G1ParClosureSuper(g1, par_scan_state), _scanner(g1, par_scan_state) { } void do_oop_nv(oop* p); void do_oop_nv(narrowOop* p) { guarantee(false, "NYI"); } virtual void do_oop(oop* p) { do_oop_nv(p); } virtual void do_oop(narrowOop* p) { do_oop_nv(p); } }; class G1ParCopyHelper : public G1ParClosureSuper { G1ParScanClosure *_scanner; protected: void mark_forwardee(oop* p); oop copy_to_survivor_space(oop obj); public: G1ParCopyHelper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state, G1ParScanClosure *scanner) : G1ParClosureSuper(g1, par_scan_state), _scanner(scanner) { } }; template<bool do_gen_barrier, G1Barrier barrier, bool do_mark_forwardee, bool skip_cset_test> class G1ParCopyClosure : public G1ParCopyHelper { G1ParScanClosure _scanner; void do_oop_work(oop* p); void do_oop_work(narrowOop* p) { guarantee(false, "NYI"); } public: G1ParCopyClosure(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) : _scanner(g1, par_scan_state), G1ParCopyHelper(g1, par_scan_state, &_scanner) { } inline void do_oop_nv(oop* p) { do_oop_work(p); if (do_mark_forwardee) mark_forwardee(p); } inline void do_oop_nv(narrowOop* p) { guarantee(false, "NYI"); } virtual void do_oop(oop* p) { do_oop_nv(p); } virtual void do_oop(narrowOop* p) { do_oop_nv(p); } }; typedef G1ParCopyClosure<false, G1BarrierNone, false, false> G1ParScanExtRootClosure; typedef G1ParCopyClosure<true, G1BarrierNone, false, false> G1ParScanPermClosure; typedef G1ParCopyClosure<false, G1BarrierNone, true, false> G1ParScanAndMarkExtRootClosure; typedef G1ParCopyClosure<true, G1BarrierNone, true, false> G1ParScanAndMarkPermClosure; typedef G1ParCopyClosure<false, G1BarrierRS, false, false> G1ParScanHeapRSClosure; typedef G1ParCopyClosure<false, G1BarrierRS, true, false> G1ParScanAndMarkHeapRSClosure; // This is the only case when we set skip_cset_test. Basically, this // closure is (should?) only be called directly while we're draining // the overflow and task queues. In that case we know that the // reference in question points into the collection set, otherwise we // would not have pushed it on the queue. typedef G1ParCopyClosure<false, G1BarrierEvac, false, true> G1ParScanHeapEvacClosure; // We need a separate closure to handle references during evacuation // failure processing, as it cannot asume that the reference already // points to the collection set (like G1ParScanHeapEvacClosure does). typedef G1ParCopyClosure<false, G1BarrierEvac, false, false> G1ParScanHeapEvacFailureClosure; class FilterIntoCSClosure: public OopClosure { G1CollectedHeap* _g1; OopClosure* _oc; DirtyCardToOopClosure* _dcto_cl; public: FilterIntoCSClosure( DirtyCardToOopClosure* dcto_cl, G1CollectedHeap* g1, OopClosure* oc) : _dcto_cl(dcto_cl), _g1(g1), _oc(oc) {} inline void do_oop_nv(oop* p); inline void do_oop_nv(narrowOop* p) { guarantee(false, "NYI"); } virtual void do_oop(oop* p); virtual void do_oop(narrowOop* p) { guarantee(false, "NYI"); } bool apply_to_weak_ref_discovered_field() { return true; } bool do_header() { return false; } }; class FilterInHeapRegionAndIntoCSClosure : public OopsInHeapRegionClosure { G1CollectedHeap* _g1; OopsInHeapRegionClosure* _oc; public: FilterInHeapRegionAndIntoCSClosure(G1CollectedHeap* g1, OopsInHeapRegionClosure* oc) : _g1(g1), _oc(oc) {} inline void do_oop_nv(oop* p); inline void do_oop_nv(narrowOop* p) { guarantee(false, "NYI"); } virtual void do_oop(oop* p); virtual void do_oop(narrowOop* p) { guarantee(false, "NYI"); } bool apply_to_weak_ref_discovered_field() { return true; } bool do_header() { return false; } void set_region(HeapRegion* from) { _oc->set_region(from); } }; class FilterAndMarkInHeapRegionAndIntoCSClosure : public OopsInHeapRegionClosure { G1CollectedHeap* _g1; ConcurrentMark* _cm; OopsInHeapRegionClosure* _oc; public: FilterAndMarkInHeapRegionAndIntoCSClosure(G1CollectedHeap* g1, OopsInHeapRegionClosure* oc, ConcurrentMark* cm) : _g1(g1), _oc(oc), _cm(cm) { } inline void do_oop_nv(oop* p); inline void do_oop_nv(narrowOop* p) { guarantee(false, "NYI"); } virtual void do_oop(oop* p); virtual void do_oop(narrowOop* p) { guarantee(false, "NYI"); } bool apply_to_weak_ref_discovered_field() { return true; } bool do_header() { return false; } void set_region(HeapRegion* from) { _oc->set_region(from); } }; class FilterOutOfRegionClosure: public OopClosure { HeapWord* _r_bottom; HeapWord* _r_end; OopClosure* _oc; int _out_of_region; public: FilterOutOfRegionClosure(HeapRegion* r, OopClosure* oc); inline void do_oop_nv(oop* p); inline void do_oop_nv(narrowOop* p) { guarantee(false, "NYI"); } virtual void do_oop(oop* p); virtual void do_oop(narrowOop* p) { guarantee(false, "NYI"); } bool apply_to_weak_ref_discovered_field() { return true; } bool do_header() { return false; } int out_of_region() { return _out_of_region; } };