Mercurial > hg > truffle
view src/share/vm/oops/typeArrayKlass.hpp @ 4892:ea677dbdd883
Merge
author | fparain |
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date | Tue, 07 Feb 2012 12:34:31 -0800 |
parents | a92cdbac8b9e |
children | da91efe96a93 |
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/* * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_OOPS_TYPEARRAYKLASS_HPP #define SHARE_VM_OOPS_TYPEARRAYKLASS_HPP #include "oops/arrayKlass.hpp" // A typeArrayKlass is the klass of a typeArray // It contains the type and size of the elements class typeArrayKlass : public arrayKlass { friend class VMStructs; private: jint _max_length; // maximum number of elements allowed in an array public: // instance variables jint max_length() { return _max_length; } void set_max_length(jint m) { _max_length = m; } // testers bool oop_is_typeArray_slow() const { return true; } // klass allocation DEFINE_ALLOCATE_PERMANENT(typeArrayKlass); static klassOop create_klass(BasicType type, int scale, const char* name_str, TRAPS); static inline klassOop create_klass(BasicType type, int scale, TRAPS) { return create_klass(type, scale, external_name(type), CHECK_NULL); } int oop_size(oop obj) const; int klass_oop_size() const { return object_size(); } bool compute_is_subtype_of(klassOop k); // Allocation typeArrayOop allocate_common(int length, bool do_zero, TRAPS); typeArrayOop allocate(int length, TRAPS) { return allocate_common(length, true, THREAD); } typeArrayOop allocate_permanent(int length, TRAPS); // used for class file structures oop multi_allocate(int rank, jint* sizes, TRAPS); // Copying void copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS); // Iteration int oop_oop_iterate(oop obj, OopClosure* blk); int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr); // Garbage collection void oop_follow_contents(oop obj); int oop_adjust_pointers(oop obj); // Parallel Scavenge and Parallel Old PARALLEL_GC_DECLS protected: // Find n'th dimensional array virtual klassOop array_klass_impl(bool or_null, int n, TRAPS); // Returns the array class with this class as element type virtual klassOop array_klass_impl(bool or_null, TRAPS); public: // Casting from klassOop static typeArrayKlass* cast(klassOop k) { assert(k->klass_part()->oop_is_typeArray_slow(), "cast to typeArrayKlass"); return (typeArrayKlass*) k->klass_part(); } // Naming static const char* external_name(BasicType type); // Sizing static int header_size() { return oopDesc::header_size() + sizeof(typeArrayKlass)/HeapWordSize; } int object_size() const { return arrayKlass::object_size(header_size()); } // Initialization (virtual from Klass) void initialize(TRAPS); private: // Helpers static klassOop array_klass_impl(typeArrayKlassHandle h_this, bool or_null, int n, TRAPS); #ifndef PRODUCT public: // Printing void oop_print_on(oop obj, outputStream* st); #endif public: const char* internal_name() const; }; #endif // SHARE_VM_OOPS_TYPEARRAYKLASS_HPP