src/share/vm/memory/oopFactory.hpp

Wed, 02 May 2012 13:21:36 -0400

author
jiangli
date
Wed, 02 May 2012 13:21:36 -0400
changeset 3741
8bafad97cd26
parent 3701
49036505ab5f
child 3917
8150fa46d2ed
permissions
-rw-r--r--

7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
Summary: Change the _host_klass to be conditionally created embedded instanceKlass field.
Reviewed-by: jrose, coleenp, dholmes

     1 /*
     2  * Copyright (c) 1997, 2012, 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  */
    25 #ifndef SHARE_VM_MEMORY_OOPFACTORY_HPP
    26 #define SHARE_VM_MEMORY_OOPFACTORY_HPP
    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"
    37 // oopFactory is a class used for creating new objects.
    39 class vframeArray;
    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); }
    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   }
    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
    65   static typeArrayOop    new_typeArray(BasicType type, int length, TRAPS);
    66   static typeArrayOop    new_typeArray_nozero(BasicType type, int length, TRAPS);
    68   // Constant pools
    69   static constantPoolOop      new_constantPool     (int length,
    70                                                     bool is_conc_safe,
    71                                                     TRAPS);
    72   static constantPoolCacheOop new_constantPoolCache(int length,
    73                                                     TRAPS);
    75   // Instance classes
    76   static klassOop        new_instanceKlass(Symbol* name,
    77                                            int vtable_len, int itable_len,
    78                                            int static_field_size,
    79                                            unsigned int nonstatic_oop_map_count,
    80                                            AccessFlags access_flags,
    81                                            ReferenceType rt,
    82                                            KlassHandle host_klass, TRAPS);
    84   // Methods
    85 private:
    86   static constMethodOop  new_constMethod(int byte_code_size,
    87                                          int compressed_line_number_size,
    88                                          int localvariable_table_length,
    89                                          int checked_exceptions_length,
    90                                          bool is_conc_safe,
    91                                          TRAPS);
    92 public:
    93   // Set is_conc_safe for methods which cannot safely be
    94   // processed by concurrent GC even after the return of
    95   // the method.
    96   static methodOop       new_method(int byte_code_size,
    97                                     AccessFlags access_flags,
    98                                     int compressed_line_number_size,
    99                                     int localvariable_table_length,
   100                                     int checked_exceptions_length,
   101                                     bool is_conc_safe,
   102                                     TRAPS);
   104   // Method Data containers
   105   static methodDataOop   new_methodData(methodHandle method, TRAPS);
   107   // System object arrays
   108   static objArrayOop     new_system_objArray(int length, TRAPS);
   110   // Regular object arrays
   111   static objArrayOop     new_objArray(klassOop klass, int length, TRAPS);
   113   // For compiled ICs
   114   static compiledICHolderOop new_compiledICHolder(methodHandle method, KlassHandle klass, TRAPS);
   115 };
   117 #endif // SHARE_VM_MEMORY_OOPFACTORY_HPP

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