hotspot/src/share/vm/utilities/endian.hpp
changeset 32761 d7c393b4e0d3
parent 32760 3851193a8c60
parent 32757 79d34d4b9627
child 32762 253adb0f4301
--- a/hotspot/src/share/vm/utilities/endian.hpp	Thu Sep 17 09:19:40 2015 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,119 +0,0 @@
-/*
- * Copyright (c) 2015, 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_UTILITIES_ENDIAN_HPP
-#define SHARE_VM_UTILITIES_ENDIAN_HPP
-
-#include "utilities/globalDefinitions.hpp"
-
-// Selectable endian handling. Endian handlers are used when accessing values
-// that are of unknown (until runtime) endian.  The only requirement of the values
-// accessed are that they are aligned to proper size boundaries (no misalignment.)
-// To select an endian handler, one should call Endian::get_handler(big_endian);
-// Where big_endian is true if big endian is required and false otherwise.  The
-// native endian handler can be fetched with Endian::get_native_handler();
-// To retrieve a value using the approprate endian, use one of the overloaded
-// calls to get. To set a value, then use one of the overloaded set calls.
-// Ex.
-//      s4 value; // Imported value;
-//      ...
-//      Endian* endian = Endian::get_handler(true);  // Use big endian
-//      s4 corrected = endian->get(value);
-//      endian->set(value, 1);
-//
-class Endian {
-public:
-  virtual u2 get(u2 x) = 0;
-  virtual u4 get(u4 x) = 0;
-  virtual u8 get(u8 x) = 0;
-  virtual s2 get(s2 x) = 0;
-  virtual s4 get(s4 x) = 0;
-  virtual s8 get(s8 x) = 0;
-
-  virtual void set(u2& x, u2 y) = 0;
-  virtual void set(u4& x, u4 y) = 0;
-  virtual void set(u8& x, u8 y) = 0;
-  virtual void set(s2& x, s2 y) = 0;
-  virtual void set(s4& x, s4 y) = 0;
-  virtual void set(s8& x, s8 y) = 0;
-
-  // Quick little endian test.
-  static bool is_little_endian() {  u4 x = 1; return *(u1 *)&x != 0; }
-
-  // Quick big endian test.
-  static bool is_big_endian() { return !is_little_endian(); }
-
-  // Select an appropriate endian handler.
-  static Endian* get_handler(bool big_endian);
-
-  // Return the native endian handler.
-  static Endian* get_native_handler();
-};
-
-// Normal endian handling.
-class NativeEndian : public Endian {
-private:
-  static NativeEndian _native;
-
-public:
-  u2 get(u2 x);
-  u4 get(u4 x);
-  u8 get(u8 x);
-  s2 get(s2 x);
-  s4 get(s4 x);
-  s8 get(s8 x);
-
-  void set(u2& x, u2 y);
-  void set(u4& x, u4 y);
-  void set(u8& x, u8 y);
-  void set(s2& x, s2 y);
-  void set(s4& x, s4 y);
-  void set(s8& x, s8 y);
-
-  static Endian* get_native() { return &_native; }
-};
-
-// Swapping endian handling.
-class SwappingEndian : public Endian {
-private:
-  static SwappingEndian _swapping;
-
-public:
-  u2 get(u2 x);
-  u4 get(u4 x);
-  u8 get(u8 x);
-  s2 get(s2 x);
-  s4 get(s4 x);
-  s8 get(s8 x);
-
-  void set(u2& x, u2 y);
-  void set(u4& x, u4 y);
-  void set(u8& x, u8 y);
-  void set(s2& x, s2 y);
-  void set(s4& x, s4 y);
-  void set(s8& x, s8 y);
-
-  static Endian* get_swapping() { return &_swapping; }
-};
-#endif // SHARE_VM_UTILITIES_ENDIAN_HPP