Mercurial > hg > truffle
comparison src/share/vm/memory/iterator.cpp @ 20278:2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
Reviewed-by: tschatzl, ehelin, brutisso, coleenp, roland, iveresov
Contributed-by: stefan.karlsson@oracle.com, mikael.gerdin@oracle.com
author | stefank |
---|---|
date | Mon, 07 Jul 2014 10:12:40 +0200 |
parents | 4c1b88a53c74 |
children | 7848fc12602b |
comparison
equal
deleted
inserted
replaced
20277:882004b9e7e1 | 20278:2c6ef90f030a |
---|---|
33 | 33 |
34 void CLDToOopClosure::do_cld(ClassLoaderData* cld) { | 34 void CLDToOopClosure::do_cld(ClassLoaderData* cld) { |
35 cld->oops_do(_oop_closure, &_klass_closure, _must_claim_cld); | 35 cld->oops_do(_oop_closure, &_klass_closure, _must_claim_cld); |
36 } | 36 } |
37 | 37 |
38 void CLDToKlassAndOopClosure::do_cld(ClassLoaderData* cld) { | |
39 cld->oops_do(_oop_closure, _klass_closure, _must_claim_cld); | |
40 } | |
41 | |
38 void ObjectToOopClosure::do_object(oop obj) { | 42 void ObjectToOopClosure::do_object(oop obj) { |
39 obj->oop_iterate(_cl); | 43 obj->oop_iterate(_cl); |
40 } | 44 } |
41 | 45 |
42 void VoidClosure::do_void() { | 46 void VoidClosure::do_void() { |
43 ShouldNotCallThis(); | 47 ShouldNotCallThis(); |
48 } | |
49 | |
50 void CodeBlobToOopClosure::do_nmethod(nmethod* nm) { | |
51 nm->oops_do(_cl); | |
52 if (_fix_relocations) { | |
53 nm->fix_oop_relocations(); | |
54 } | |
55 } | |
56 | |
57 void CodeBlobToOopClosure::do_code_blob(CodeBlob* cb) { | |
58 nmethod* nm = cb->as_nmethod_or_null(); | |
59 if (nm != NULL) { | |
60 do_nmethod(nm); | |
61 } | |
44 } | 62 } |
45 | 63 |
46 MarkingCodeBlobClosure::MarkScope::MarkScope(bool activate) | 64 MarkingCodeBlobClosure::MarkScope::MarkScope(bool activate) |
47 : _active(activate) | 65 : _active(activate) |
48 { | 66 { |
53 if (_active) nmethod::oops_do_marking_epilogue(); | 71 if (_active) nmethod::oops_do_marking_epilogue(); |
54 } | 72 } |
55 | 73 |
56 void MarkingCodeBlobClosure::do_code_blob(CodeBlob* cb) { | 74 void MarkingCodeBlobClosure::do_code_blob(CodeBlob* cb) { |
57 nmethod* nm = cb->as_nmethod_or_null(); | 75 nmethod* nm = cb->as_nmethod_or_null(); |
58 if (nm == NULL) return; | 76 if (nm != NULL && !nm->test_set_oops_do_mark()) { |
59 if (!nm->test_set_oops_do_mark()) { | 77 do_nmethod(nm); |
60 NOT_PRODUCT(if (TraceScavenge) nm->print_on(tty, "oops_do, 1st visit\n")); | |
61 do_newly_marked_nmethod(nm); | |
62 } else { | |
63 NOT_PRODUCT(if (TraceScavenge) nm->print_on(tty, "oops_do, skipped on 2nd visit\n")); | |
64 } | 78 } |
65 } | 79 } |
66 | |
67 void CodeBlobToOopClosure::do_newly_marked_nmethod(nmethod* nm) { | |
68 nm->oops_do(_cl, /*allow_zombie=*/ false); | |
69 } | |
70 | |
71 void CodeBlobToOopClosure::do_code_blob(CodeBlob* cb) { | |
72 if (!_do_marking) { | |
73 nmethod* nm = cb->as_nmethod_or_null(); | |
74 NOT_PRODUCT(if (TraceScavenge && Verbose && nm != NULL) nm->print_on(tty, "oops_do, unmarked visit\n")); | |
75 // This assert won't work, since there are lots of mini-passes | |
76 // (mostly in debug mode) that co-exist with marking phases. | |
77 //assert(!(cb->is_nmethod() && ((nmethod*)cb)->test_oops_do_mark()), "found marked nmethod during mark-free phase"); | |
78 if (nm != NULL) { | |
79 nm->oops_do(_cl); | |
80 } | |
81 } else { | |
82 MarkingCodeBlobClosure::do_code_blob(cb); | |
83 } | |
84 } | |
85 | |
86 |