1.1 --- a/src/share/vm/classfile/dictionary.hpp Wed Apr 08 00:12:59 2009 -0700
1.2 +++ b/src/share/vm/classfile/dictionary.hpp Wed Apr 08 10:56:49 2009 -0700
1.3 @@ -1,5 +1,5 @@
1.4 /*
1.5 - * Copyright 2003-2006 Sun Microsystems, Inc. All Rights Reserved.
1.6 + * Copyright 2003-2009 Sun Microsystems, Inc. All Rights Reserved.
1.7 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.8 *
1.9 * This code is free software; you can redistribute it and/or modify it
1.10 @@ -217,3 +217,112 @@
1.11 tty->print_cr("pd set = #%d", count);
1.12 }
1.13 };
1.14 +
1.15 +// Entry in a SymbolPropertyTable, mapping a single symbolOop
1.16 +// to a managed and an unmanaged pointer.
1.17 +class SymbolPropertyEntry : public HashtableEntry {
1.18 + friend class VMStructs;
1.19 + private:
1.20 + oop _property_oop;
1.21 + address _property_data;
1.22 +
1.23 + public:
1.24 + symbolOop symbol() const { return (symbolOop) literal(); }
1.25 +
1.26 + oop property_oop() const { return _property_oop; }
1.27 + void set_property_oop(oop p) { _property_oop = p; }
1.28 +
1.29 + address property_data() const { return _property_data; }
1.30 + void set_property_data(address p) { _property_data = p; }
1.31 +
1.32 + SymbolPropertyEntry* next() const {
1.33 + return (SymbolPropertyEntry*)HashtableEntry::next();
1.34 + }
1.35 +
1.36 + SymbolPropertyEntry** next_addr() {
1.37 + return (SymbolPropertyEntry**)HashtableEntry::next_addr();
1.38 + }
1.39 +
1.40 + oop* symbol_addr() { return literal_addr(); }
1.41 + oop* property_oop_addr() { return &_property_oop; }
1.42 +
1.43 + void print_on(outputStream* st) const {
1.44 + symbol()->print_value_on(st);
1.45 + st->print(" -> ");
1.46 + bool printed = false;
1.47 + if (property_oop() != NULL) {
1.48 + property_oop()->print_value_on(st);
1.49 + printed = true;
1.50 + }
1.51 + if (property_data() != NULL) {
1.52 + if (printed) st->print(" and ");
1.53 + st->print(INTPTR_FORMAT, property_data());
1.54 + printed = true;
1.55 + }
1.56 + st->print_cr(printed ? "" : "(empty)");
1.57 + }
1.58 +};
1.59 +
1.60 +// A system-internal mapping of symbols to pointers, both managed
1.61 +// and unmanaged. Used to record the auto-generation of each method
1.62 +// MethodHandle.invoke(S)T, for all signatures (S)T.
1.63 +class SymbolPropertyTable : public Hashtable {
1.64 + friend class VMStructs;
1.65 +private:
1.66 + SymbolPropertyEntry* bucket(int i) {
1.67 + return (SymbolPropertyEntry*) Hashtable::bucket(i);
1.68 + }
1.69 +
1.70 + // The following method is not MT-safe and must be done under lock.
1.71 + SymbolPropertyEntry** bucket_addr(int i) {
1.72 + return (SymbolPropertyEntry**) Hashtable::bucket_addr(i);
1.73 + }
1.74 +
1.75 + void add_entry(int index, SymbolPropertyEntry* new_entry) {
1.76 + ShouldNotReachHere();
1.77 + }
1.78 + void set_entry(int index, SymbolPropertyEntry* new_entry) {
1.79 + ShouldNotReachHere();
1.80 + }
1.81 +
1.82 + SymbolPropertyEntry* new_entry(unsigned int hash, symbolOop symbol) {
1.83 + SymbolPropertyEntry* entry = (SymbolPropertyEntry*) Hashtable::new_entry(hash, symbol);
1.84 + entry->set_property_oop(NULL);
1.85 + entry->set_property_data(NULL);
1.86 + return entry;
1.87 + }
1.88 +
1.89 +public:
1.90 + SymbolPropertyTable(int table_size);
1.91 + SymbolPropertyTable(int table_size, HashtableBucket* t, int number_of_entries);
1.92 +
1.93 + void free_entry(SymbolPropertyEntry* entry) {
1.94 + Hashtable::free_entry(entry);
1.95 + }
1.96 +
1.97 + unsigned int compute_hash(symbolHandle sym) {
1.98 + // Use the regular identity_hash.
1.99 + return Hashtable::compute_hash(sym);
1.100 + }
1.101 +
1.102 + // need not be locked; no state change
1.103 + SymbolPropertyEntry* find_entry(int index, unsigned int hash, symbolHandle name);
1.104 +
1.105 + // must be done under SystemDictionary_lock
1.106 + SymbolPropertyEntry* add_entry(int index, unsigned int hash, symbolHandle name);
1.107 +
1.108 + // GC support
1.109 + void oops_do(OopClosure* f);
1.110 + void methods_do(void f(methodOop));
1.111 +
1.112 + // Sharing support
1.113 + void dump(SerializeOopClosure* soc);
1.114 + void restore(SerializeOopClosure* soc);
1.115 + void reorder_dictionary();
1.116 +
1.117 +#ifndef PRODUCT
1.118 + void print();
1.119 +#endif
1.120 + void verify();
1.121 +};
1.122 +
