jdk8-mips64-public/hotspot: src/share/vm/runtime/atomic.hpp@36376b540a98 (annotated)

src/share/vm/runtime/atomic.hpp@36376b540a98 (annotated)

src/share/vm/runtime/atomic.hpp

Tue, 26 Mar 2013 09:06:16 -0400

author: hseigel
date: Tue, 26 Mar 2013 09:06:16 -0400
changeset 4819: 36376b540a98
parent 4647: 0598674c0056
child 5306: d9eed26d638a
permissions: -rw-r--r--

8009595: The UseSplitVerifier option needs to be deprecated.
Summary: Put UseSplitVerifier option on the deprecated list.
Reviewed-by: dcubed, kmo, acorn

 /*
  * Copyright (c) 1999, 2010, 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_RUNTIME_ATOMIC_HPP
 #define SHARE_VM_RUNTIME_ATOMIC_HPP
 #include "memory/allocation.hpp"
 class Atomic : AllStatic {
  public:
   // Atomic operations on jlong types are not available on all 32-bit
   // platforms. If atomic ops on jlongs are defined here they must only
   // be used from code that verifies they are available at runtime and
   // can provide an alternative action if not - see supports_cx8() for
   // a means to test availability.
   // Atomically store to a location
   inline static void store    (jbyte    store_value, jbyte*    dest);
   inline static void store    (jshort   store_value, jshort*   dest);
   inline static void store    (jint     store_value, jint*     dest);
   // See comment above about using jlong atomics on 32-bit platforms
   inline static void store    (jlong    store_value, jlong*    dest);
   inline static void store_ptr(intptr_t store_value, intptr_t* dest);
   inline static void store_ptr(void*    store_value, void*     dest);
   inline static void store    (jbyte    store_value, volatile jbyte*    dest);
   inline static void store    (jshort   store_value, volatile jshort*   dest);
   inline static void store    (jint     store_value, volatile jint*     dest);
   // See comment above about using jlong atomics on 32-bit platforms
   inline static void store    (jlong    store_value, volatile jlong*    dest);
   inline static void store_ptr(intptr_t store_value, volatile intptr_t* dest);
   inline static void store_ptr(void*    store_value, volatile void*     dest);
   // See comment above about using jlong atomics on 32-bit platforms
   inline static jlong load(volatile jlong* src);
   // Atomically add to a location, return updated value
   inline static jint     add    (jint     add_value, volatile jint*     dest);
   inline static intptr_t add_ptr(intptr_t add_value, volatile intptr_t* dest);
   inline static void*    add_ptr(intptr_t add_value, volatile void*     dest);
   // See comment above about using jlong atomics on 32-bit platforms
          static jlong    add    (jlong    add_value, volatile jlong*    dest);
   // Atomically increment location
   inline static void inc    (volatile jint*     dest);
   inline static void inc_ptr(volatile intptr_t* dest);
   inline static void inc_ptr(volatile void*     dest);
   // Atomically decrement a location
   inline static void dec    (volatile jint*     dest);
   inline static void dec_ptr(volatile intptr_t* dest);
   inline static void dec_ptr(volatile void*     dest);
   // Performs atomic exchange of *dest with exchange_value.  Returns old prior value of *dest.
   inline static jint         xchg(jint         exchange_value, volatile jint*         dest);
          static unsigned int xchg(unsigned int exchange_value, volatile unsigned int* dest);
   inline static intptr_t xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest);
   inline static void*    xchg_ptr(void*    exchange_value, volatile void*   dest);
   // Performs atomic compare of *dest and compare_value, and exchanges *dest with exchange_value
   // if the comparison succeeded.  Returns prior value of *dest.  Guarantees a two-way memory
   // barrier across the cmpxchg.  I.e., it's really a 'fence_cmpxchg_acquire'.
          static jbyte    cmpxchg    (jbyte    exchange_value, volatile jbyte*    dest, jbyte    compare_value);
   inline static jint     cmpxchg    (jint     exchange_value, volatile jint*     dest, jint     compare_value);
   // See comment above about using jlong atomics on 32-bit platforms
   inline static jlong    cmpxchg    (jlong    exchange_value, volatile jlong*    dest, jlong    compare_value);
          static unsigned int cmpxchg(unsigned int exchange_value,
                                      volatile unsigned int* dest,
                                      unsigned int compare_value);
   inline static intptr_t cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value);
   inline static void*    cmpxchg_ptr(void*    exchange_value, volatile void*     dest, void*    compare_value);
 };
 #endif // SHARE_VM_RUNTIME_ATOMIC_HPP

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src/share/vm/runtime/atomic.hpp@36376b540a98 (annotated)

src/share/vm/runtime/atomic.hpp