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