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view src/share/vm/services/serviceUtil.hpp @ 10405:f2110083203d
8005849: JEP 167: Event-Based JVM Tracing
Reviewed-by: acorn, coleenp, sla
Contributed-by: Karen Kinnear <karen.kinnear@oracle.com>, Bengt Rutisson <bengt.rutisson@oracle.com>, Calvin Cheung <calvin.cheung@oracle.com>, Erik Gahlin <erik.gahlin@oracle.com>, Erik Helin <erik.helin@oracle.com>, Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>, Keith McGuigan <keith.mcguigan@oracle.com>, Mattias Tobiasson <mattias.tobiasson@oracle.com>, Markus Gronlund <markus.gronlund@oracle.com>, Mikael Auno <mikael.auno@oracle.com>, Nils Eliasson <nils.eliasson@oracle.com>, Nils Loodin <nils.loodin@oracle.com>, Rickard Backman <rickard.backman@oracle.com>, Staffan Larsen <staffan.larsen@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
author | sla |
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date | Mon, 10 Jun 2013 11:30:51 +0200 |
parents | 070d523b96a7 |
children |
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/* * Copyright (c) 2003, 2012, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_SERVICES_SERVICEUTIL_HPP #define SHARE_VM_SERVICES_SERVICEUTIL_HPP #include "classfile/systemDictionary.hpp" #include "oops/objArrayOop.hpp" // // Serviceability utility functions. // (Shared by MM and JVMTI). // class ServiceUtil : public AllStatic { public: // Return true if oop represents an object that is "visible" // to the java world. static inline bool visible_oop(oop o) { // the sentinel for deleted handles isn't visible if (o == JNIHandles::deleted_handle()) { return false; } // instance if (o->is_instance()) { // instance objects are visible if (o->klass() != SystemDictionary::Class_klass()) { return true; } if (java_lang_Class::is_primitive(o)) { return true; } // java.lang.Classes are visible Klass* k = java_lang_Class::as_Klass(o); if (k->is_klass()) { // if it's a class for an object, an object array, or // primitive (type) array then it's visible. if (k->oop_is_instance()) { return true; } if (k->oop_is_objArray()) { return true; } if (k->oop_is_typeArray()) { return true; } } return false; } // object arrays are visible if they aren't system object arrays if (o->is_objArray()) { return true; } // type arrays are visible if (o->is_typeArray()) { return true; } // everything else (Method*s, ...) aren't visible return false; }; // end of visible_oop() }; #endif // SHARE_VM_SERVICES_SERVICEUTIL_HPP