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/*
* Copyright (c) 1997, 2010, 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_OOPS_SYMBOLKLASS_HPP
#define SHARE_VM_OOPS_SYMBOLKLASS_HPP
#include "oops/typeArrayKlass.hpp"
// a symbolKlass is the klass for a symbolOop
class symbolKlass : public Klass {
friend class VMStructs;
private:
juint _alloc_size; // allocation profiling support
public:
// Allocation
DEFINE_ALLOCATE_PERMANENT(symbolKlass);
static klassOop create_klass(TRAPS);
symbolOop allocate_symbol(u1* name, int len, TRAPS); // Assumes no characters larger than 0x7F
bool allocate_symbols(int names_count, const char** names, int* lengths, symbolOop* sym_oops, TRAPS);
// Test operation
bool oop_is_symbol() const { return true; }
// Casting from klassOop
static symbolKlass* cast(klassOop k) {
assert(k->klass_part()->oop_is_symbol(), "cast to symbolKlass");
return (symbolKlass*) k->klass_part();
}
static int header_size() { return oopDesc::header_size() + sizeof(symbolKlass)/HeapWordSize; }
int oop_size(oop obj) const;
int klass_oop_size() const { return object_size(); }
int object_size() const { return align_object_size(header_size()); }
// Garbage collection
void oop_follow_contents(oop obj);
int oop_adjust_pointers(oop obj);
bool oop_is_parsable(oop obj) const;
// Parallel Scavenge and Parallel Old
PARALLEL_GC_DECLS
// Allocation profiling support
juint alloc_size() const { return _alloc_size; }
void set_alloc_size(juint n) { _alloc_size = n; }
// Iterators
int oop_oop_iterate(oop obj, OopClosure* blk);
int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);
// Printing
void oop_print_value_on(oop obj, outputStream* st);
#ifndef PRODUCT
void oop_print_on(oop obj, outputStream* st);
#endif //PRODUCT
const char* internal_name() const;
};
#endif // SHARE_VM_OOPS_SYMBOLKLASS_HPP
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