10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
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
21 * questions.
22 *
23 */
24
25 #ifndef OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_HPP
26 #define OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_HPP
27
28 // Implementation of class atomic
29
30 inline void Atomic::store (jbyte store_value, jbyte* dest) { *dest = store_value; }
31 inline void Atomic::store (jshort store_value, jshort* dest) { *dest = store_value; }
32 inline void Atomic::store (jint store_value, jint* dest) { *dest = store_value; }
33 inline void Atomic::store_ptr(intptr_t store_value, intptr_t* dest) { *dest = store_value; }
34 inline void Atomic::store_ptr(void* store_value, void* dest) { *(void**)dest = store_value; }
35
36 inline void Atomic::store (jbyte store_value, volatile jbyte* dest) { *dest = store_value; }
37 inline void Atomic::store (jshort store_value, volatile jshort* dest) { *dest = store_value; }
38 inline void Atomic::store (jint store_value, volatile jint* dest) { *dest = store_value; }
39 inline void Atomic::store_ptr(intptr_t store_value, volatile intptr_t* dest) { *dest = store_value; }
40 inline void Atomic::store_ptr(void* store_value, volatile void* dest) { *(void* volatile *)dest = store_value; }
41
42 inline void Atomic::store(jlong store_value, jlong* dest) { *dest = store_value; }
43 inline void Atomic::store(jlong store_value, volatile jlong* dest) { *dest = store_value; }
44 inline jlong Atomic::load(const volatile jlong* src) { return *src; }
45
46 // Implement ADD using a CAS loop.
47 template<size_t byte_size>
48 struct Atomic::PlatformAdd VALUE_OBJ_CLASS_SPEC {
49 template<typename I, typename D>
50 inline D operator()(I add_value, D volatile* dest) const {
51 D old_value = *dest;
52 while (true) {
53 D new_value = old_value + add_value;
54 D result = cmpxchg(new_value, dest, old_value);
55 if (result == old_value) break;
56 old_value = result;
57 }
58 return old_value + add_value;
59 }
60 };
61
62 template<>
63 template<typename T>
64 inline T Atomic::PlatformXchg<4>::operator()(T exchange_value,
65 T volatile* dest) const {
|
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
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
21 * questions.
22 *
23 */
24
25 #ifndef OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_HPP
26 #define OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_HPP
27
28 // Implementation of class atomic
29
30 // Implement ADD using a CAS loop.
31 template<size_t byte_size>
32 struct Atomic::PlatformAdd VALUE_OBJ_CLASS_SPEC {
33 template<typename I, typename D>
34 inline D operator()(I add_value, D volatile* dest) const {
35 D old_value = *dest;
36 while (true) {
37 D new_value = old_value + add_value;
38 D result = cmpxchg(new_value, dest, old_value);
39 if (result == old_value) break;
40 old_value = result;
41 }
42 return old_value + add_value;
43 }
44 };
45
46 template<>
47 template<typename T>
48 inline T Atomic::PlatformXchg<4>::operator()(T exchange_value,
49 T volatile* dest) const {
|