1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/prims/jvmtiRawMonitor.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,107 @@
1.4 +/*
1.5 + * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#ifndef SHARE_VM_PRIMS_JVMTIRAWMONITOR_HPP
1.29 +#define SHARE_VM_PRIMS_JVMTIRAWMONITOR_HPP
1.30 +
1.31 +#include "runtime/objectMonitor.hpp"
1.32 +#include "utilities/growableArray.hpp"
1.33 +
1.34 +//
1.35 +// class JvmtiRawMonitor
1.36 +//
1.37 +// Used by JVMTI methods: All RawMonitor methods (CreateRawMonitor, EnterRawMonitor, etc.)
1.38 +//
1.39 +// Wrapper for ObjectMonitor class that saves the Monitor's name
1.40 +//
1.41 +
1.42 +class JvmtiRawMonitor : public ObjectMonitor {
1.43 +private:
1.44 + int _magic;
1.45 + char * _name;
1.46 + // JVMTI_RM_MAGIC is set in contructor and unset in destructor.
1.47 + enum { JVMTI_RM_MAGIC = (int)(('T' << 24) | ('I' << 16) | ('R' << 8) | 'M') };
1.48 +
1.49 + int SimpleEnter (Thread * Self) ;
1.50 + int SimpleExit (Thread * Self) ;
1.51 + int SimpleWait (Thread * Self, jlong millis) ;
1.52 + int SimpleNotify (Thread * Self, bool All) ;
1.53 +
1.54 +public:
1.55 + JvmtiRawMonitor(const char *name);
1.56 + ~JvmtiRawMonitor();
1.57 + int raw_enter(TRAPS);
1.58 + int raw_exit(TRAPS);
1.59 + int raw_wait(jlong millis, bool interruptable, TRAPS);
1.60 + int raw_notify(TRAPS);
1.61 + int raw_notifyAll(TRAPS);
1.62 + int magic() { return _magic; }
1.63 + const char *get_name() { return _name; }
1.64 + bool is_valid();
1.65 +};
1.66 +
1.67 +// Onload pending raw monitors
1.68 +// Class is used to cache onload or onstart monitor enter
1.69 +// which will transition into real monitor when
1.70 +// VM is fully initialized.
1.71 +class JvmtiPendingMonitors : public AllStatic {
1.72 +
1.73 +private:
1.74 + static GrowableArray<JvmtiRawMonitor*> *_monitors; // Cache raw monitor enter
1.75 +
1.76 + inline static GrowableArray<JvmtiRawMonitor*>* monitors() { return _monitors; }
1.77 +
1.78 + static void dispose() {
1.79 + delete monitors();
1.80 + }
1.81 +
1.82 +public:
1.83 + static void enter(JvmtiRawMonitor *monitor) {
1.84 + monitors()->append(monitor);
1.85 + }
1.86 +
1.87 + static int count() {
1.88 + return monitors()->length();
1.89 + }
1.90 +
1.91 + static void destroy(JvmtiRawMonitor *monitor) {
1.92 + while (monitors()->contains(monitor)) {
1.93 + monitors()->remove(monitor);
1.94 + }
1.95 + }
1.96 +
1.97 + // Return false if monitor is not found in the list.
1.98 + static bool exit(JvmtiRawMonitor *monitor) {
1.99 + if (monitors()->contains(monitor)) {
1.100 + monitors()->remove(monitor);
1.101 + return true;
1.102 + } else {
1.103 + return false;
1.104 + }
1.105 + }
1.106 +
1.107 + static void transition_raw_monitors();
1.108 +};
1.109 +
1.110 +#endif // SHARE_VM_PRIMS_JVMTIRAWMONITOR_HPP
