Mercurial > hg > truffle
diff src/share/vm/oops/typeArrayKlass.hpp @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | 7d7a7c599c17 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/oops/typeArrayKlass.hpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,103 @@ +/* + * Copyright 1997-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +// 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, TRAPS); + + int oop_size(oop obj) const; + int klass_oop_size() const { return object_size(); } + + bool compute_is_subtype_of(klassOop k); + + // Allocation + typeArrayOop allocate(int length, TRAPS); + 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; +};