duke@435: /*
stefank@2314:  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #ifndef SHARE_VM_OOPS_TYPEARRAYOOP_HPP
stefank@2314: #define SHARE_VM_OOPS_TYPEARRAYOOP_HPP
stefank@2314: 
stefank@2314: #include "oops/arrayOop.hpp"
stefank@2314: #include "oops/typeArrayKlass.hpp"
stefank@2314: #ifdef TARGET_OS_ARCH_linux_x86
stefank@2314: # include "orderAccess_linux_x86.inline.hpp"
stefank@2314: #endif
stefank@2314: #ifdef TARGET_OS_ARCH_linux_sparc
stefank@2314: # include "orderAccess_linux_sparc.inline.hpp"
stefank@2314: #endif
stefank@2314: #ifdef TARGET_OS_ARCH_linux_zero
stefank@2314: # include "orderAccess_linux_zero.inline.hpp"
stefank@2314: #endif
stefank@2314: #ifdef TARGET_OS_ARCH_solaris_x86
stefank@2314: # include "orderAccess_solaris_x86.inline.hpp"
stefank@2314: #endif
stefank@2314: #ifdef TARGET_OS_ARCH_solaris_sparc
stefank@2314: # include "orderAccess_solaris_sparc.inline.hpp"
stefank@2314: #endif
stefank@2314: #ifdef TARGET_OS_ARCH_windows_x86
stefank@2314: # include "orderAccess_windows_x86.inline.hpp"
stefank@2314: #endif
bobv@2508: #ifdef TARGET_OS_ARCH_linux_arm
bobv@2508: # include "orderAccess_linux_arm.inline.hpp"
bobv@2508: #endif
bobv@2508: #ifdef TARGET_OS_ARCH_linux_ppc
bobv@2508: # include "orderAccess_linux_ppc.inline.hpp"
bobv@2508: #endif
stefank@2314: 
duke@435: // A typeArrayOop is an array containing basic types (non oop elements).
duke@435: // It is used for arrays of {characters, singles, doubles, bytes, shorts, integers, longs}
duke@435: #include <limits.h>
duke@435: 
duke@435: class typeArrayOopDesc : public arrayOopDesc {
duke@435:  protected:
duke@435:   jchar*    char_base()   const { return (jchar*)   base(T_CHAR); }
duke@435:   jboolean* bool_base()   const { return (jboolean*)base(T_BOOLEAN); }
duke@435:   jbyte*    byte_base()   const { return (jbyte*)   base(T_BYTE); }
duke@435:   jint*     int_base()    const { return (jint*)    base(T_INT); }
duke@435:   jlong*    long_base()   const { return (jlong*)   base(T_LONG); }
duke@435:   jshort*   short_base()  const { return (jshort*)  base(T_SHORT); }
duke@435:   jfloat*   float_base()  const { return (jfloat*)  base(T_FLOAT); }
duke@435:   jdouble*  double_base() const { return (jdouble*) base(T_DOUBLE); }
duke@435: 
duke@435:   friend class typeArrayKlass;
duke@435: 
duke@435:  public:
duke@435:   jbyte* byte_at_addr(int which) const {
duke@435:     assert(is_within_bounds(which), "index out of bounds");
duke@435:     return &byte_base()[which];
duke@435:   }
duke@435: 
duke@435:   jboolean* bool_at_addr(int which) const {
duke@435:     assert(is_within_bounds(which), "index out of bounds");
duke@435:     return &bool_base()[which];
duke@435:   }
duke@435: 
duke@435:   jchar* char_at_addr(int which) const {
duke@435:     assert(is_within_bounds(which), "index out of bounds");
duke@435:     return &char_base()[which];
duke@435:   }
duke@435: 
duke@435:   jint* int_at_addr(int which) const {
duke@435:     assert(is_within_bounds(which), "index out of bounds");
duke@435:     return &int_base()[which];
duke@435:   }
duke@435: 
duke@435:   jshort* short_at_addr(int which) const {
duke@435:     assert(is_within_bounds(which), "index out of bounds");
duke@435:     return &short_base()[which];
duke@435:   }
duke@435: 
duke@435:   jushort* ushort_at_addr(int which) const {  // for field descriptor arrays
duke@435:     assert(is_within_bounds(which), "index out of bounds");
duke@435:     return (jushort*) &short_base()[which];
duke@435:   }
duke@435: 
duke@435:   jlong* long_at_addr(int which) const {
duke@435:     assert(is_within_bounds(which), "index out of bounds");
duke@435:     return &long_base()[which];
duke@435:   }
duke@435: 
duke@435:   jfloat* float_at_addr(int which) const {
duke@435:     assert(is_within_bounds(which), "index out of bounds");
duke@435:     return &float_base()[which];
duke@435:   }
duke@435: 
duke@435:   jdouble* double_at_addr(int which) const {
duke@435:     assert(is_within_bounds(which), "index out of bounds");
duke@435:     return &double_base()[which];
duke@435:   }
duke@435: 
duke@435:   jbyte byte_at(int which) const                  { return *byte_at_addr(which); }
duke@435:   void byte_at_put(int which, jbyte contents)     { *byte_at_addr(which) = contents; }
duke@435: 
duke@435:   jboolean bool_at(int which) const               { return *bool_at_addr(which); }
duke@435:   void bool_at_put(int which, jboolean contents)  { *bool_at_addr(which) = contents; }
duke@435: 
duke@435:   jchar char_at(int which) const                  { return *char_at_addr(which); }
duke@435:   void char_at_put(int which, jchar contents)     { *char_at_addr(which) = contents; }
duke@435: 
duke@435:   jint int_at(int which) const                    { return *int_at_addr(which); }
duke@435:   void int_at_put(int which, jint contents)       { *int_at_addr(which) = contents; }
duke@435: 
duke@435:   jshort short_at(int which) const                { return *short_at_addr(which); }
duke@435:   void short_at_put(int which, jshort contents)   { *short_at_addr(which) = contents; }
duke@435: 
duke@435:   jushort ushort_at(int which) const              { return *ushort_at_addr(which); }
duke@435:   void ushort_at_put(int which, jushort contents) { *ushort_at_addr(which) = contents; }
duke@435: 
duke@435:   jlong long_at(int which) const                  { return *long_at_addr(which); }
duke@435:   void long_at_put(int which, jlong contents)     { *long_at_addr(which) = contents; }
duke@435: 
duke@435:   jfloat float_at(int which) const                { return *float_at_addr(which); }
duke@435:   void float_at_put(int which, jfloat contents)   { *float_at_addr(which) = contents; }
duke@435: 
duke@435:   jdouble double_at(int which) const              { return *double_at_addr(which); }
duke@435:   void double_at_put(int which, jdouble contents) { *double_at_addr(which) = contents; }
duke@435: 
duke@435:   jbyte byte_at_acquire(int which) const              { return OrderAccess::load_acquire(byte_at_addr(which)); }
duke@435:   void release_byte_at_put(int which, jbyte contents) { OrderAccess::release_store(byte_at_addr(which), contents); }
duke@435: 
duke@435:   // Sizing
duke@435: 
duke@435:   // Returns the number of words necessary to hold an array of "len"
duke@435:   // elements each of the given "byte_size".
duke@435:  private:
duke@435:   static int object_size(int lh, int length) {
duke@435:     int instance_header_size = Klass::layout_helper_header_size(lh);
duke@435:     int element_shift = Klass::layout_helper_log2_element_size(lh);
duke@435:     DEBUG_ONLY(BasicType etype = Klass::layout_helper_element_type(lh));
duke@435:     assert(length <= arrayOopDesc::max_array_length(etype), "no overflow");
duke@435: 
duke@435:     julong size_in_bytes = length;
duke@435:     size_in_bytes <<= element_shift;
duke@435:     size_in_bytes += instance_header_size;
duke@435:     julong size_in_words = ((size_in_bytes + (HeapWordSize-1)) >> LogHeapWordSize);
duke@435:     assert(size_in_words <= (julong)max_jint, "no overflow");
duke@435: 
duke@435:     return align_object_size((intptr_t)size_in_words);
duke@435:   }
duke@435: 
duke@435:  public:
duke@435:   int object_size() {
duke@435:     typeArrayKlass* tk = typeArrayKlass::cast(klass());
duke@435:     return object_size(tk->layout_helper(), length());
duke@435:   }
duke@435: };
stefank@2314: 
stefank@2314: #endif // SHARE_VM_OOPS_TYPEARRAYOOP_HPP