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comparison src/share/vm/memory/allocation.cpp @ 7176:59c790074993

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8003635: NPG: AsynchGetCallTrace broken by Method* virtual call Summary: Make metaspace::contains be lock free and used to see if something is in metaspace, also compare Method* with vtbl pointer. Reviewed-by: dholmes, sspitsyn, dcubed, jmasa
author coleenp
date Wed, 28 Nov 2012 17:50:21 -0500
parents 716c64bda5ba
children 6f817ce50129 f75faf51e8c4
comparison
equal deleted inserted replaced
7175:b51dc8df86e5 7176:59c790074993
64 bool MetaspaceObj::is_shared() const { 64 bool MetaspaceObj::is_shared() const {
65 return MetaspaceShared::is_in_shared_space(this); 65 return MetaspaceShared::is_in_shared_space(this);
66 } 66 }
67 67
68 bool MetaspaceObj::is_metadata() const { 68 bool MetaspaceObj::is_metadata() const {
69 // ClassLoaderDataGraph::contains((address)this); has lock inversion problems 69 // GC Verify checks use this in guarantees.
70 // TODO: either replace them with is_metaspace_object() or remove them.
71 // is_metaspace_object() is slower than this test. This test doesn't
72 // seem very useful for metaspace objects anymore though.
70 return !Universe::heap()->is_in_reserved(this); 73 return !Universe::heap()->is_in_reserved(this);
74 }
75
76 bool MetaspaceObj::is_metaspace_object() const {
77 return Metaspace::contains((void*)this);
71 } 78 }
72 79
73 void MetaspaceObj::print_address_on(outputStream* st) const { 80 void MetaspaceObj::print_address_on(outputStream* st) const {
74 st->print(" {"INTPTR_FORMAT"}", this); 81 st->print(" {"INTPTR_FORMAT"}", this);
75 } 82 }