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 SHARE_VM_RUNTIME_OBJECTMONITOR_HPP
26 #define SHARE_VM_RUNTIME_OBJECTMONITOR_HPP
27
28 #include "runtime/os.hpp"
29 #include "runtime/park.hpp"
30 #include "runtime/perfData.hpp"
31
32 // ObjectWaiter serves as a "proxy" or surrogate thread.
33 // TODO-FIXME: Eliminate ObjectWaiter and use the thread-specific
34 // ParkEvent instead. Beware, however, that the JVMTI code
35 // knows about ObjectWaiters, so we'll have to reconcile that code.
36 // See next_waiter(), first_waiter(), etc.
37
38 class ObjectWaiter : public StackObj {
39 public:
40 enum TStates { TS_UNDEF, TS_READY, TS_RUN, TS_WAIT, TS_ENTER, TS_CXQ } ;
41 enum Sorted { PREPEND, APPEND, SORTED } ;
42 ObjectWaiter * volatile _next;
43 ObjectWaiter * volatile _prev;
44 Thread* _thread;
45 jlong _notifier_tid;
46 ParkEvent * _event;
47 volatile int _notified ;
48 volatile TStates TState ;
49 Sorted _Sorted ; // List placement disposition
50 bool _active ; // Contention monitoring is enabled
51 public:
|
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 SHARE_VM_RUNTIME_OBJECTMONITOR_HPP
26 #define SHARE_VM_RUNTIME_OBJECTMONITOR_HPP
27
28 #include "runtime/os.hpp"
29 #include "runtime/park.hpp"
30 #include "runtime/perfData.hpp"
31
32 class ObjectMonitor;
33
34 // ObjectWaiter serves as a "proxy" or surrogate thread.
35 // TODO-FIXME: Eliminate ObjectWaiter and use the thread-specific
36 // ParkEvent instead. Beware, however, that the JVMTI code
37 // knows about ObjectWaiters, so we'll have to reconcile that code.
38 // See next_waiter(), first_waiter(), etc.
39
40 class ObjectWaiter : public StackObj {
41 public:
42 enum TStates { TS_UNDEF, TS_READY, TS_RUN, TS_WAIT, TS_ENTER, TS_CXQ } ;
43 enum Sorted { PREPEND, APPEND, SORTED } ;
44 ObjectWaiter * volatile _next;
45 ObjectWaiter * volatile _prev;
46 Thread* _thread;
47 jlong _notifier_tid;
48 ParkEvent * _event;
49 volatile int _notified ;
50 volatile TStates TState ;
51 Sorted _Sorted ; // List placement disposition
52 bool _active ; // Contention monitoring is enabled
53 public:
|