src/share/vm/utilities/copy.hpp

rev 10065 : imported patch unsafecopyswap
rev 10066 : imported patch unsafecopyswap2

*** 1,7 ****
  /*
!  * Copyright (c) 2003, 2011, 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.
--- 1,7 ----
  /*
!  * Copyright (c) 2003, 2016, 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.
*** 225,234 ****
--- 225,244 ----
      while (count-- > 0) {
        *to-- = *from--;
      }
    }
  
+   /**
+    * Copy and *unconditionally* byte swap elements
+    *
+    * @param src address of source
+    * @param dst address of destination
+    * @param byte_count number of bytes to copy
+    * @param elem_size size of the elements to copy-swap
+    */
+   static void conjoint_swap(address src, address dst, size_t byte_count, size_t elem_size);
+ 
    // Fill methods
  
    // Fill word-aligned words, not atomic on each word
    // set_words
    static void fill_to_words(HeapWord* to, size_t count, juint value = 0) {