Mercurial > hg > truffle

comparison src/share/vm/oops/symbolKlass.hpp @ 0:a61af66fc99e jdk7-b24

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children 4e6abf09f540
comparison
equal deleted inserted replaced
-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 // a symbolKlass is the klass for a symbolOop
26
27 class symbolKlass : public Klass {
28 friend class VMStructs;
29 private:
30 juint _alloc_size; // allocation profiling support
31 public:
32 // Allocation
33 DEFINE_ALLOCATE_PERMANENT(symbolKlass);
34 static klassOop create_klass(TRAPS);
35 symbolOop allocate_symbol(u1* name, int len, TRAPS); // Assumes no characters larger than 0x7F
36 bool allocate_symbols(int names_count, const char** names, int* lengths, symbolOop* sym_oops, TRAPS);
37
38 // Test operation
39 bool oop_is_symbol() const { return true; }
40
41 // Casting from klassOop
42 static symbolKlass* cast(klassOop k) {
43 assert(k->klass_part()->oop_is_symbol(), "cast to symbolKlass");
44 return (symbolKlass*) k->klass_part();
45 }
46
47 static int header_size() { return oopDesc::header_size() + sizeof(symbolKlass)/HeapWordSize; }
48 int oop_size(oop obj) const;
49 int klass_oop_size() const { return object_size(); }
50 int object_size() const { return align_object_size(header_size()); }
51
52 // Garbage collection
53 void oop_follow_contents(oop obj);
54 int oop_adjust_pointers(oop obj);
55 bool oop_is_parsable(oop obj) const;
56
57 // Parallel Scavenge and Parallel Old
58 PARALLEL_GC_DECLS
59
60 // Allocation profiling support
61 juint alloc_size() const { return _alloc_size; }
62 void set_alloc_size(juint n) { _alloc_size = n; }
63
64 // Iterators
65 int oop_oop_iterate(oop obj, OopClosure* blk);
66 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr);
67
68 #ifndef PRODUCT
69 // Printing
70 void oop_print_value_on(oop obj, outputStream* st);
71 void oop_print_on(oop obj, outputStream* st);
72 #endif
73 const char* internal_name() const;
74 };