100 lines
3.3 KiB
C++
100 lines
3.3 KiB
C++
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/*
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* Copyright 2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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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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class ResolutionErrorTable : public Hashtable {
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public:
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ResolutionErrorTable(int table_size);
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ResolutionErrorEntry* new_entry(int hash, constantPoolOop pool, int cp_index, symbolOop error);
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ResolutionErrorEntry* bucket(int i) {
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return (ResolutionErrorEntry*)Hashtable::bucket(i);
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}
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ResolutionErrorEntry** bucket_addr(int i) {
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return (ResolutionErrorEntry**)Hashtable::bucket_addr(i);
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}
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void add_entry(int index, ResolutionErrorEntry* new_entry) {
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Hashtable::add_entry(index, (HashtableEntry*)new_entry);
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}
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void add_entry(int index, unsigned int hash,
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constantPoolHandle pool, int which, symbolHandle error);
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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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constantPoolHandle pool, int cp_index);
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unsigned int compute_hash(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(BoolObjectClosure* is_alive);
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// this table keeps symbolOops alive
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void always_strong_classes_do(OopClosure* blk);
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// GC support.
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void oops_do(OopClosure* f);
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};
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class ResolutionErrorEntry : public HashtableEntry {
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private:
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int _cp_index;
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symbolOop _error;
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public:
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constantPoolOop pool() const { return (constantPoolOop)literal(); }
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constantPoolOop* pool_addr() { return (constantPoolOop*)literal_addr(); }
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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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symbolOop error() const { return _error; }
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void set_error(symbolOop e) { _error = e; }
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symbolOop* error_addr() { return &_error; }
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ResolutionErrorEntry* next() const {
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return (ResolutionErrorEntry*)HashtableEntry::next();
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}
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ResolutionErrorEntry** next_addr() {
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return (ResolutionErrorEntry**)HashtableEntry::next_addr();
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}
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// GC support
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void oops_do(OopClosure* blk);
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};
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