154a1a02bf
Use script and some manual fixup to fix directores names in include guards. Reviewed-by: lfoltan, eosterlund, kbarrett
121 lines
4.3 KiB
C++
121 lines
4.3 KiB
C++
/*
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* Copyright (c) 2005, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SHARE_CLASSFILE_RESOLUTIONERRORS_HPP
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#define SHARE_CLASSFILE_RESOLUTIONERRORS_HPP
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#include "oops/constantPool.hpp"
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#include "utilities/hashtable.hpp"
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class ResolutionErrorEntry;
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// ResolutionError objects are used to record errors encountered during
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// constant pool resolution (JVMS 5.4.3).
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// This value is added to the cpCache index of an invokedynamic instruction when
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// storing the resolution error resulting from that invokedynamic instruction.
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// This prevents issues where the cpCache index is the same as the constant pool
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// index of another entry in the table.
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const int CPCACHE_INDEX_MANGLE_VALUE = 1000000;
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class ResolutionErrorTable : public Hashtable<ConstantPool*, mtClass> {
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public:
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ResolutionErrorTable(int table_size);
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ResolutionErrorEntry* new_entry(int hash, ConstantPool* pool, int cp_index,
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Symbol* error, Symbol* message);
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void free_entry(ResolutionErrorEntry *entry);
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ResolutionErrorEntry* bucket(int i) {
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return (ResolutionErrorEntry*)Hashtable<ConstantPool*, mtClass>::bucket(i);
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}
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ResolutionErrorEntry** bucket_addr(int i) {
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return (ResolutionErrorEntry**)Hashtable<ConstantPool*, mtClass>::bucket_addr(i);
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}
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void add_entry(int index, ResolutionErrorEntry* new_entry) {
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Hashtable<ConstantPool*, mtClass>::add_entry(index,
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(HashtableEntry<ConstantPool*, mtClass>*)new_entry);
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}
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void add_entry(int index, unsigned int hash,
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const constantPoolHandle& pool, int which, Symbol* error, Symbol* message);
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// find error given the constant pool and constant pool index
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ResolutionErrorEntry* find_entry(int index, unsigned int hash,
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const constantPoolHandle& pool, int cp_index);
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unsigned int compute_hash(const constantPoolHandle& pool, int cp_index) {
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return (unsigned int) pool->identity_hash() + cp_index;
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}
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// purges unloaded entries from the table
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void purge_resolution_errors();
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// RedefineClasses support - remove obsolete constant pool entry
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void delete_entry(ConstantPool* c);
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// This function is used to encode an index to differentiate it from a
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// constant pool index. It assumes it is being called with a cpCache index
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// (that is less than 0).
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static int encode_cpcache_index(int index) {
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assert(index < 0, "Unexpected non-negative cpCache index");
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return index + CPCACHE_INDEX_MANGLE_VALUE;
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}
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};
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class ResolutionErrorEntry : public HashtableEntry<ConstantPool*, mtClass> {
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private:
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int _cp_index;
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Symbol* _error;
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Symbol* _message;
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public:
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ConstantPool* pool() const { return literal(); }
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int cp_index() const { return _cp_index; }
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void set_cp_index(int cp_index) { _cp_index = cp_index; }
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Symbol* error() const { return _error; }
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void set_error(Symbol* e);
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Symbol* message() const { return _message; }
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void set_message(Symbol* c);
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ResolutionErrorEntry* next() const {
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return (ResolutionErrorEntry*)HashtableEntry<ConstantPool*, mtClass>::next();
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}
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ResolutionErrorEntry** next_addr() {
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return (ResolutionErrorEntry**)HashtableEntry<ConstantPool*, mtClass>::next_addr();
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}
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};
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#endif // SHARE_CLASSFILE_RESOLUTIONERRORS_HPP
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