oopFactory.hpp revision 1472:c18cbe5936b8 
1/*
2 * Copyright (c) 1997, 2009, Oracle and/or its affiliates. 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.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
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23 */
24
25// oopFactory is a class used for creating new objects.
26
27class vframeArray;
28
29class oopFactory: AllStatic {
30 public:
31  // Basic type leaf array allocation
32  static typeArrayOop    new_boolArray  (int length, TRAPS) { return typeArrayKlass::cast(Universe::boolArrayKlassObj  ())->allocate(length, CHECK_NULL); }
33  static typeArrayOop    new_charArray  (int length, TRAPS) { return typeArrayKlass::cast(Universe::charArrayKlassObj  ())->allocate(length, CHECK_NULL); }
34  static typeArrayOop    new_singleArray(int length, TRAPS) { return typeArrayKlass::cast(Universe::singleArrayKlassObj())->allocate(length, CHECK_NULL); }
35  static typeArrayOop    new_doubleArray(int length, TRAPS) { return typeArrayKlass::cast(Universe::doubleArrayKlassObj())->allocate(length, CHECK_NULL); }
36  static typeArrayOop    new_byteArray  (int length, TRAPS) { return typeArrayKlass::cast(Universe::byteArrayKlassObj  ())->allocate(length, CHECK_NULL); }
37  static typeArrayOop    new_shortArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::shortArrayKlassObj ())->allocate(length, CHECK_NULL); }
38  static typeArrayOop    new_intArray   (int length, TRAPS) { return typeArrayKlass::cast(Universe::intArrayKlassObj   ())->allocate(length, CHECK_NULL); }
39  static typeArrayOop    new_longArray  (int length, TRAPS) { return typeArrayKlass::cast(Universe::longArrayKlassObj  ())->allocate(length, CHECK_NULL); }
40
41  // create java.lang.Object[]
42  static objArrayOop     new_objectArray(int length, TRAPS)  {
43    return objArrayKlass::
44      cast(Universe::objectArrayKlassObj())->allocate(length, CHECK_NULL);
45  }
46
47  static typeArrayOop    new_charArray           (const char* utf8_str,  TRAPS);
48  static typeArrayOop    new_permanent_charArray (int length, TRAPS);
49  static typeArrayOop    new_permanent_byteArray (int length, TRAPS);  // used for class file structures
50  static typeArrayOop    new_permanent_shortArray(int length, TRAPS);  // used for class file structures
51  static typeArrayOop    new_permanent_intArray  (int length, TRAPS);  // used for class file structures
52
53  static typeArrayOop    new_typeArray(BasicType type, int length, TRAPS);
54
55  // Symbols
56  static symbolOop new_symbol(const char* utf8_buffer, int length, TRAPS) {
57    assert(utf8_buffer != NULL, "just checking");
58    return SymbolTable::lookup(utf8_buffer, length, CHECK_NULL);
59  }
60  static void new_symbols(constantPoolHandle cp, int names_count,
61                          const char** name, int* lengths,
62                          int* cp_indices, unsigned int* hashValues,
63                          TRAPS) {
64    SymbolTable::add(cp, names_count, name, lengths, cp_indices,
65                     hashValues, CHECK);
66  }
67
68  static symbolOop       new_symbol(char* name, TRAPS) { return new_symbol(name, (int)strlen(name), CHECK_NULL); }
69  static symbolOop       new_symbol(const char* name, TRAPS) { return new_symbol(name, (int)strlen(name), CHECK_NULL); }
70  static symbolOop       new_symbol(symbolHandle sym, int begin, int end, TRAPS) {
71    assert(begin <= end && end <= sym->utf8_length(), "just checking");
72    return SymbolTable::lookup(sym, begin, end, CHECK_NULL);
73  }
74
75  // Create symbols as above but return a handle
76  static symbolHandle    new_symbol_handle(const char* name, int length, TRAPS) {
77    symbolOop sym = new_symbol(name, length, THREAD);
78    return symbolHandle(THREAD, sym);
79  }
80  static symbolHandle    new_symbol_handle(char* name, TRAPS) { return new_symbol_handle(name, (int)strlen(name), CHECK_(symbolHandle())); }
81  static symbolHandle    new_symbol_handle(const char* name, TRAPS) { return new_symbol_handle(name, (int)strlen(name), CHECK_(symbolHandle())); }
82
83  // Constant pools
84  static constantPoolOop      new_constantPool     (int length,
85                                                    bool is_conc_safe,
86                                                    TRAPS);
87  static constantPoolCacheOop new_constantPoolCache(int length,
88                                                    bool is_conc_safe,
89                                                    TRAPS);
90
91  // Instance classes
92  static klassOop        new_instanceKlass(int vtable_len, int itable_len,
93                                           int static_field_size,
94                                           unsigned int nonstatic_oop_map_count,
95                                           ReferenceType rt, TRAPS);
96
97  // Methods
98private:
99  static constMethodOop  new_constMethod(int byte_code_size,
100                                         int compressed_line_number_size,
101                                         int localvariable_table_length,
102                                         int checked_exceptions_length,
103                                         bool is_conc_safe,
104                                         TRAPS);
105public:
106  // Set is_conc_safe for methods which cannot safely be
107  // processed by concurrent GC even after the return of
108  // the method.
109  static methodOop       new_method(int byte_code_size,
110                                    AccessFlags access_flags,
111                                    int compressed_line_number_size,
112                                    int localvariable_table_length,
113                                    int checked_exceptions_length,
114                                    bool is_conc_safe,
115                                    TRAPS);
116
117  // Method Data containers
118  static methodDataOop   new_methodData(methodHandle method, TRAPS);
119
120  // System object arrays
121  static objArrayOop     new_system_objArray(int length, TRAPS);
122
123  // Regular object arrays
124  static objArrayOop     new_objArray(klassOop klass, int length, TRAPS);
125
126  // For compiled ICs
127  static compiledICHolderOop new_compiledICHolder(methodHandle method, KlassHandle klass, TRAPS);
128};
129