1 /*

     1 /*

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     7  * published by the Free Software Foundation.

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    21  * questions.

    22  *

    22  *

    23  */

    23  */

    24 

    29 

    25 class Atomic : AllStatic {

    30 class Atomic : AllStatic {

    26  public:

    31  public:

    27   // Atomically store to a location

    32   // Atomically store to a location

    28   static void store    (jbyte    store_value, jbyte*    dest);

    33   static void store    (jbyte    store_value, jbyte*    dest);

    76                               unsigned int compare_value);

    81                               unsigned int compare_value);

    77 

    82 

    78   static intptr_t cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value);

    83   static intptr_t cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value);

    79   static void*    cmpxchg_ptr(void*    exchange_value, volatile void*     dest, void*    compare_value);

    84   static void*    cmpxchg_ptr(void*    exchange_value, volatile void*     dest, void*    compare_value);

    80 };

    85 };