hotspot/src/share/vm/memory/oopFactory.hpp
author acorn
Thu, 05 Mar 2009 22:07:29 -0500
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/*
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 * Copyright 1997-2007 Sun Microsystems, Inc.  All Rights Reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 *
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 */
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// oopFactory is a class used for creating new objects.
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class vframeArray;
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class oopFactory: AllStatic {
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  // Basic type leaf array allocation
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  static typeArrayOop    new_boolArray  (int length, TRAPS) { return typeArrayKlass::cast(Universe::boolArrayKlassObj  ())->allocate(length, CHECK_NULL); }
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  static typeArrayOop    new_charArray  (int length, TRAPS) { return typeArrayKlass::cast(Universe::charArrayKlassObj  ())->allocate(length, CHECK_NULL); }
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  static typeArrayOop    new_singleArray(int length, TRAPS) { return typeArrayKlass::cast(Universe::singleArrayKlassObj())->allocate(length, CHECK_NULL); }
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  static typeArrayOop    new_doubleArray(int length, TRAPS) { return typeArrayKlass::cast(Universe::doubleArrayKlassObj())->allocate(length, CHECK_NULL); }
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  static typeArrayOop    new_byteArray  (int length, TRAPS) { return typeArrayKlass::cast(Universe::byteArrayKlassObj  ())->allocate(length, CHECK_NULL); }
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  static typeArrayOop    new_shortArray (int length, TRAPS) { return typeArrayKlass::cast(Universe::shortArrayKlassObj ())->allocate(length, CHECK_NULL); }
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  static typeArrayOop    new_intArray   (int length, TRAPS) { return typeArrayKlass::cast(Universe::intArrayKlassObj   ())->allocate(length, CHECK_NULL); }
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  static typeArrayOop    new_longArray  (int length, TRAPS) { return typeArrayKlass::cast(Universe::longArrayKlassObj  ())->allocate(length, CHECK_NULL); }
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  // create java.lang.Object[]
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  static objArrayOop     new_objectArray(int length, TRAPS)  {
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    return objArrayKlass::
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      cast(Universe::objectArrayKlassObj())->allocate(length, CHECK_NULL);
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  }
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  static typeArrayOop    new_charArray           (const char* utf8_str,  TRAPS);
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  static typeArrayOop    new_permanent_charArray (int length, TRAPS);
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  static typeArrayOop    new_permanent_byteArray (int length, TRAPS);  // used for class file structures
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  static typeArrayOop    new_permanent_shortArray(int length, TRAPS);  // used for class file structures
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  static typeArrayOop    new_permanent_intArray  (int length, TRAPS);  // used for class file structures
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  static typeArrayOop    new_typeArray(BasicType type, int length, TRAPS);
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  // Symbols
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  static symbolOop new_symbol(const char* utf8_buffer, int length, TRAPS) {
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    assert(utf8_buffer != NULL, "just checking");
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    return SymbolTable::lookup(utf8_buffer, length, CHECK_NULL);
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  }
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  static void new_symbols(constantPoolHandle cp, int names_count,
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                          const char** name, int* lengths,
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                          int* cp_indices, unsigned int* hashValues,
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                          TRAPS) {
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    SymbolTable::add(cp, names_count, name, lengths, cp_indices,
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                     hashValues, CHECK);
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  }
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  static symbolOop       new_symbol(char* name, TRAPS) { return new_symbol(name, (int)strlen(name), CHECK_NULL); }
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  static symbolOop       new_symbol(const char* name, TRAPS) { return new_symbol(name, (int)strlen(name), CHECK_NULL); }
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  static symbolOop       new_symbol(symbolHandle sym, int begin, int end, TRAPS) {
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    assert(begin <= end && end <= sym->utf8_length(), "just checking");
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    return SymbolTable::lookup(sym, begin, end, CHECK_NULL);
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  }
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  // Create symbols as above but return a handle
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  static symbolHandle    new_symbol_handle(const char* name, int length, TRAPS) {
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    symbolOop sym = new_symbol(name, length, THREAD);
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    return symbolHandle(THREAD, sym);
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  }
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  static symbolHandle    new_symbol_handle(char* name, TRAPS) { return new_symbol_handle(name, (int)strlen(name), CHECK_(symbolHandle())); }
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  static symbolHandle    new_symbol_handle(const char* name, TRAPS) { return new_symbol_handle(name, (int)strlen(name), CHECK_(symbolHandle())); }
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  // Constant pools
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  static constantPoolOop      new_constantPool     (int length,
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                                                    bool is_conc_safe,
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                                                    TRAPS);
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  static constantPoolCacheOop new_constantPoolCache(int length,
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                                                    bool is_conc_safe,
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                                                    TRAPS);
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  // Instance classes
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  static klassOop        new_instanceKlass(int vtable_len, int itable_len, int static_field_size,
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                                           int nonstatic_oop_map_size, ReferenceType rt, TRAPS);
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  // Methods
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private:
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  static constMethodOop  new_constMethod(int byte_code_size,
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                                         int compressed_line_number_size,
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                                         int localvariable_table_length,
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                                         int checked_exceptions_length,
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                                         bool is_conc_safe,
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                                         TRAPS);
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public:
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  // Set is_conc_safe for methods which cannot safely be
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  // processed by concurrent GC even after the return of
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  // the method.
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  static methodOop       new_method(int byte_code_size,
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                                    AccessFlags access_flags,
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                                    int compressed_line_number_size,
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                                    int localvariable_table_length,
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                                    int checked_exceptions_length,
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                                    bool is_conc_safe,
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                                    TRAPS);
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  // Method Data containers
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  static methodDataOop   new_methodData(methodHandle method, TRAPS);
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  // System object arrays
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  static objArrayOop     new_system_objArray(int length, TRAPS);
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  // Regular object arrays
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  static objArrayOop     new_objArray(klassOop klass, int length, TRAPS);
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  // For compiled ICs
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  static compiledICHolderOop new_compiledICHolder(methodHandle method, KlassHandle klass, TRAPS);
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};