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src/share/vm/memory/oopFactory.hpp@0bfd3fb24150
src/share/vm/memory/oopFactory.hpp
Tue, 13 Apr 2010 13:52:10 -0700
- author
- jmasa
- date
- Tue, 13 Apr 2010 13:52:10 -0700
- changeset 1822
- 0bfd3fb24150
- parent 1374
- 9eebd3ac74cf
- child 1907
- c18cbe5936b8
- permissions
- -rw-r--r--
6858496: Clear all SoftReferences before an out-of-memory due to GC overhead limit.
Summary: Ensure a full GC that clears SoftReferences before throwing an out-of-memory
Reviewed-by: ysr, jcoomes
1 /*
2 * Copyright 1997-2009 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 */
25 // oopFactory is a class used for creating new objects.
27 class vframeArray;
29 class 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); }
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 }
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
53 static typeArrayOop new_typeArray(BasicType type, int length, TRAPS);
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 }
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 }
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())); }
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);
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);
97 // Methods
98 private:
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);
105 public:
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);
117 // Method Data containers
118 static methodDataOop new_methodData(methodHandle method, TRAPS);
120 // System object arrays
121 static objArrayOop new_system_objArray(int length, TRAPS);
123 // Regular object arrays
124 static objArrayOop new_objArray(klassOop klass, int length, TRAPS);
126 // For compiled ICs
127 static compiledICHolderOop new_compiledICHolder(methodHandle method, KlassHandle klass, TRAPS);
128 };
