| /* |
| * Copyright (c) 1999, 2013, 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_PRIMS_JVMTIRAWMONITOR_HPP |
| #define SHARE_VM_PRIMS_JVMTIRAWMONITOR_HPP |
| |
| #include "runtime/objectMonitor.hpp" |
| #include "utilities/growableArray.hpp" |
| |
| // |
| // class JvmtiRawMonitor |
| // |
| // Used by JVMTI methods: All RawMonitor methods (CreateRawMonitor, EnterRawMonitor, etc.) |
| // |
| // Wrapper for ObjectMonitor class that saves the Monitor's name |
| // |
| |
| class JvmtiRawMonitor : public ObjectMonitor { |
| private: |
| int _magic; |
| char * _name; |
| // JVMTI_RM_MAGIC is set in contructor and unset in destructor. |
| enum { JVMTI_RM_MAGIC = (int)(('T' << 24) | ('I' << 16) | ('R' << 8) | 'M') }; |
| |
| int SimpleEnter (Thread * Self) ; |
| int SimpleExit (Thread * Self) ; |
| int SimpleWait (Thread * Self, jlong millis) ; |
| int SimpleNotify (Thread * Self, bool All) ; |
| |
| public: |
| JvmtiRawMonitor(const char *name); |
| ~JvmtiRawMonitor(); |
| int raw_enter(TRAPS); |
| int raw_exit(TRAPS); |
| int raw_wait(jlong millis, bool interruptable, TRAPS); |
| int raw_notify(TRAPS); |
| int raw_notifyAll(TRAPS); |
| int magic() { return _magic; } |
| const char *get_name() { return _name; } |
| bool is_valid(); |
| }; |
| |
| // Onload pending raw monitors |
| // Class is used to cache onload or onstart monitor enter |
| // which will transition into real monitor when |
| // VM is fully initialized. |
| class JvmtiPendingMonitors : public AllStatic { |
| |
| private: |
| static GrowableArray<JvmtiRawMonitor*> *_monitors; // Cache raw monitor enter |
| |
| inline static GrowableArray<JvmtiRawMonitor*>* monitors() { return _monitors; } |
| |
| static void dispose() { |
| delete monitors(); |
| } |
| |
| public: |
| static void enter(JvmtiRawMonitor *monitor) { |
| monitors()->append(monitor); |
| } |
| |
| static int count() { |
| return monitors()->length(); |
| } |
| |
| static void destroy(JvmtiRawMonitor *monitor) { |
| while (monitors()->contains(monitor)) { |
| monitors()->remove(monitor); |
| } |
| } |
| |
| // Return false if monitor is not found in the list. |
| static bool exit(JvmtiRawMonitor *monitor) { |
| if (monitors()->contains(monitor)) { |
| monitors()->remove(monitor); |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| static void transition_raw_monitors(); |
| }; |
| |
| #endif // SHARE_VM_PRIMS_JVMTIRAWMONITOR_HPP |