1 /* 2 * Copyright (c) 1997, 2010, 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. 18 * 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. 22 * 23 */ 24 25 #ifndef SHARE_VM_MEMORY_OOPFACTORY_HPP 26 #define SHARE_VM_MEMORY_OOPFACTORY_HPP 27 28 #include "classfile/symbolTable.hpp" 29 #include "classfile/systemDictionary.hpp" 30 #include "memory/universe.hpp" 31 #include "oops/klassOop.hpp" 32 #include "oops/objArrayKlass.hpp" 33 #include "oops/oop.hpp" 34 #include "oops/typeArrayKlass.hpp" 35 #include "utilities/growableArray.hpp" 36 37 // oopFactory is a class used for creating new objects. 38 39 class vframeArray; 40 41 class oopFactory: AllStatic { 42 public: 43 // Basic type leaf array allocation 44 static typeArrayOop new_boolArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::boolArrayKlassObj ())->allocate(length, CHECK_NULL); } 45 static typeArrayOop new_charArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::charArrayKlassObj ())->allocate(length, CHECK_NULL); } 46 static typeArrayOop new_singleArray(int length, TRAPS) { return typeArrayKlass::cast(Universe::singleArrayKlassObj())->allocate(length, CHECK_NULL); } 47 static typeArrayOop new_doubleArray(int length, TRAPS) { return typeArrayKlass::cast(Universe::doubleArrayKlassObj())->allocate(length, CHECK_NULL); } 48 static typeArrayOop new_byteArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::byteArrayKlassObj ())->allocate(length, CHECK_NULL); } 49 static typeArrayOop new_shortArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::shortArrayKlassObj ())->allocate(length, CHECK_NULL); } 50 static typeArrayOop new_intArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::intArrayKlassObj ())->allocate(length, CHECK_NULL); } 51 static typeArrayOop new_longArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::longArrayKlassObj ())->allocate(length, CHECK_NULL); } 52 53 // create java.lang.Object[] 54 static objArrayOop new_objectArray(int length, TRAPS) { 55 return objArrayKlass:: 56 cast(Universe::objectArrayKlassObj())->allocate(length, CHECK_NULL); 57 } 58 59 static typeArrayOop new_charArray (const char* utf8_str, TRAPS); 60 static typeArrayOop new_permanent_charArray (int length, TRAPS); 61 static typeArrayOop new_permanent_byteArray (int length, TRAPS); // used for class file structures 62 static typeArrayOop new_permanent_shortArray(int length, TRAPS); // used for class file structures 63 static typeArrayOop new_permanent_intArray (int length, TRAPS); // used for class file structures 64 65 static typeArrayOop new_typeArray(BasicType type, int length, TRAPS); 66 67 // Symbols 68 static symbolOop new_symbol(const char* utf8_buffer, int length, TRAPS) { 69 assert(utf8_buffer != NULL, "just checking"); 70 return SymbolTable::lookup(utf8_buffer, length, CHECK_NULL); 71 } 72 static void new_symbols(constantPoolHandle cp, int names_count, 73 const char** name, int* lengths, 74 int* cp_indices, unsigned int* hashValues, 75 TRAPS) { 76 SymbolTable::add(cp, names_count, name, lengths, cp_indices, 77 hashValues, CHECK); 78 } 79 80 static symbolOop new_symbol(char* name, TRAPS) { return new_symbol(name, (int)strlen(name), CHECK_NULL); } 81 static symbolOop new_symbol(const char* name, TRAPS) { return new_symbol(name, (int)strlen(name), CHECK_NULL); } 82 static symbolOop new_symbol(symbolHandle sym, int begin, int end, TRAPS) { 83 assert(begin <= end && end <= sym->utf8_length(), "just checking"); 84 return SymbolTable::lookup(sym, begin, end, CHECK_NULL); 85 } 86 87 // Create symbols as above but return a handle 88 static symbolHandle new_symbol_handle(const char* name, int length, TRAPS) { 89 symbolOop sym = new_symbol(name, length, THREAD); 90 return symbolHandle(THREAD, sym); 91 } 92 static symbolHandle new_symbol_handle(char* name, TRAPS) { return new_symbol_handle(name, (int)strlen(name), CHECK_(symbolHandle())); } 93 static symbolHandle new_symbol_handle(const char* name, TRAPS) { return new_symbol_handle(name, (int)strlen(name), CHECK_(symbolHandle())); } 94 95 // Constant pools 96 static constantPoolOop new_constantPool (int length, 97 bool is_conc_safe, 98 TRAPS); 99 static constantPoolCacheOop new_constantPoolCache(int length, 100 bool is_conc_safe, 101 TRAPS); 102 103 // Instance classes 104 static klassOop new_instanceKlass(int vtable_len, int itable_len, 105 int static_field_size, 106 unsigned int nonstatic_oop_map_count, 107 ReferenceType rt, TRAPS); 108 109 // Methods 110 private: 111 static constMethodOop new_constMethod(int byte_code_size, 112 int compressed_line_number_size, 113 int localvariable_table_length, 114 int checked_exceptions_length, 115 bool is_conc_safe, 116 TRAPS); 117 public: 118 // Set is_conc_safe for methods which cannot safely be 119 // processed by concurrent GC even after the return of 120 // the method. 121 static methodOop new_method(int byte_code_size, 122 AccessFlags access_flags, 123 int compressed_line_number_size, 124 int localvariable_table_length, 125 int checked_exceptions_length, 126 bool is_conc_safe, 127 TRAPS); 128 129 // Method Data containers 130 static methodDataOop new_methodData(methodHandle method, TRAPS); 131 132 // System object arrays 133 static objArrayOop new_system_objArray(int length, TRAPS); 134 135 // Regular object arrays 136 static objArrayOop new_objArray(klassOop klass, int length, TRAPS); 137 138 // For compiled ICs 139 static compiledICHolderOop new_compiledICHolder(methodHandle method, KlassHandle klass, TRAPS); 140 }; 141 142 #endif // SHARE_VM_MEMORY_OOPFACTORY_HPP