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.
  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 // oopFactory is a class used for creating new objects.
  26 
  27 class vframeArray;
  28 
  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); }
  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
  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);
 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 };