1 /* 2 * Copyright (c) 1997, 2020, 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_MEMORY_OOPFACTORY_HPP 26 #define SHARE_MEMORY_OOPFACTORY_HPP 27 28 #include "memory/referenceType.hpp" 29 #include "oops/oopsHierarchy.hpp" 30 #include "runtime/handles.hpp" 31 #include "utilities/exceptions.hpp" 32 33 // oopFactory is a class used for creating new objects. 34 35 class oopFactory: AllStatic { 36 public: 37 // Basic type leaf array allocation 38 static typeArrayOop new_boolArray (int length, TRAPS); 39 static typeArrayOop new_charArray (int length, TRAPS); 40 static typeArrayOop new_floatArray (int length, TRAPS); 41 static typeArrayOop new_doubleArray(int length, TRAPS); 42 static typeArrayOop new_byteArray (int length, TRAPS); 43 static typeArrayOop new_shortArray (int length, TRAPS); 44 static typeArrayOop new_intArray (int length, TRAPS); 45 static typeArrayOop new_longArray (int length, TRAPS); 46 47 // create java.lang.Object[] 48 static objArrayOop new_objectArray(int length, TRAPS); 49 50 static typeArrayOop new_charArray(const char* utf8_str, TRAPS); 51 52 static typeArrayOop new_typeArray(BasicType type, int length, TRAPS); 53 static typeArrayOop new_typeArray_nozero(BasicType type, int length, TRAPS); 54 static typeArrayOop new_symbolArray(int length, TRAPS); 55 56 // Regular object arrays 57 static objArrayOop new_objArray(Klass* klass, int length, TRAPS); 58 59 // Value arrays... 60 // LWorld: 61 // - Q-type signature allocation should use this path. 62 // - L-type signature allocation should use new_objArray 63 // 64 // Method specifically null free and possibly flat if possible 65 // i.e. flatArrayOop if flattening can be done, else "null free" objArrayOop 66 static arrayOop new_valueArray(Klass* klass, int length, TRAPS); 67 68 // Helper conversions from value to obj array... 69 static objArrayHandle copy_flatArray_to_objArray(flatArrayHandle array, TRAPS); 70 static objArrayHandle ensure_objArray(oop array, TRAPS); // copy into new objArray if not already an objArray 71 72 // Helper that returns a Handle 73 static objArrayHandle new_objArray_handle(Klass* klass, int length, TRAPS); 74 }; 75 76 #endif // SHARE_MEMORY_OOPFACTORY_HPP