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Quellcode-Bibliothek© Kompilation durch diese Firma[Weder Korrektheit noch Funktionsfähigkeit der Software werden zugesichert.]Datei: Sprache: C |
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/*
* Copyright (c) 2011, 2020, 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_OOPS_METADATA_HPP #define SHARE_OOPS_METADATA_HPP #include "utilities/exceptions.hpp" #include "utilities/globalDefinitions.hpp" #include "utilities/ostream.hpp" // This is the base class for an internal Class related metadata class Metadata : public MetaspaceObj { // Debugging hook to check that the metadata has not been deleted. NOT_PRODUCT(int _valid;) public: NOT_PRODUCT(Metadata() : _valid(0) {}) NOT_PRODUCT(bool is_valid() const { return _valid == 0; }) int identity_hash() { return (int)(uintptr_t)this; } virtual bool is_metadata() const { return true; } virtual bool is_klass() const { return false; } virtual bool is_method() const { return false; } virtual bool is_methodData() const { return false; } virtual bool is_constantPool() const { return false; } virtual bool is_methodCounters() const { return false; } virtual int size() const = 0; virtual MetaspaceObj::Type type() const = 0; virtual const char* internal_name() const = 0; virtual void metaspace_pointers_do(MetaspaceClosure* iter) {} void print() const; void print_value() const; static void print_value_on_maybe_null(outputStream* st, const Metadata* m) { if (NULL == m) st->print("NULL"); else m->print_value_on(st); } virtual void print_on(outputStream* st) const; // First level print virtual void print_value_on(outputStream* st) const = 0; // Second level print char* print_value_string() const; // Used to keep metadata alive during class redefinition // Can't assert because is called for delete functions (as an assert) virtual bool on_stack() const { return false; } virtual void set_on_stack(const bool value); // Set on_stack bit, so that the metadata is not cleared // during class redefinition. This is a virtual call because only methods // and constant pools need to be set, but someday instanceKlasses might also. static void mark_on_stack(Metadata* m) { m->set_on_stack(true); } }; #endif // SHARE_OOPS_METADATA_HPP ¤ Diese beiden folgenden Angebotsgruppen bietet das Unternehmen0.21Angebot Wie Sie bei der Firma Beratungs- und Dienstleistungen beauftragen können ¤ |
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