Mercurial > hg > truffle

comparison src/share/vm/services/serviceUtil.hpp @ 6725:da91efe96a93

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents f95d63e2154a
children 070d523b96a7
comparison
equal deleted inserted replaced
6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
41 // the sentinel for deleted handles isn't visible 41 // the sentinel for deleted handles isn't visible
42 if (o == JNIHandles::deleted_handle()) { 42 if (o == JNIHandles::deleted_handle()) {
43 return false; 43 return false;
44 } 44 }
45 45
46 // ignore KlassKlass
47 if (o->is_klass()) {
48 return false;
49 }
50
51 // instance 46 // instance
52 if (o->is_instance()) { 47 if (o->is_instance()) {
53 // instance objects are visible 48 // instance objects are visible
54 if (o->klass() != SystemDictionary::Class_klass()) { 49 if (o->klass() != SystemDictionary::Class_klass()) {
55 return true; 50 return true;
56 } 51 }
57 if (java_lang_Class::is_primitive(o)) { 52 if (java_lang_Class::is_primitive(o)) {
58 return true; 53 return true;
59 } 54 }
60 // java.lang.Classes are visible 55 // java.lang.Classes are visible
61 o = java_lang_Class::as_klassOop(o); 56 Klass* k = java_lang_Class::as_Klass(o);
62 if (o->is_klass()) { 57 if (k->is_klass()) {
63 // if it's a class for an object, an object array, or 58 // if it's a class for an object, an object array, or
64 // primitive (type) array then it's visible. 59 // primitive (type) array then it's visible.
65 klassOop klass = (klassOop)o; 60 Klass* klass = k;
66 if (Klass::cast(klass)->oop_is_instance()) { 61 if (Klass::cast(klass)->oop_is_instance()) {
67 return true; 62 return true;
68 } 63 }
69 if (Klass::cast(klass)->oop_is_objArray()) { 64 if (Klass::cast(klass)->oop_is_objArray()) {
70 return true; 65 return true;
75 } 70 }
76 return false; 71 return false;
77 } 72 }
78 // object arrays are visible if they aren't system object arrays 73 // object arrays are visible if they aren't system object arrays
79 if (o->is_objArray()) { 74 if (o->is_objArray()) {
80 objArrayOop array = (objArrayOop)o;
81 if (array->klass() != Universe::systemObjArrayKlassObj()) {
82 return true; 75 return true;
83 } else {
84 return false;
85 }
86 } 76 }
87 // type arrays are visible 77 // type arrays are visible
88 if (o->is_typeArray()) { 78 if (o->is_typeArray()) {
89 return true; 79 return true;
90 } 80 }
91 // everything else (methodOops, ...) aren't visible 81 // everything else (Method*s, ...) aren't visible
92 return false; 82 return false;
93 }; // end of visible_oop() 83 }; // end of visible_oop()
94 84
95 }; 85 };
96 86