1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/gc_implementation/parallelScavenge/gcTaskThread.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,110 @@
1.4 +/*
1.5 + * Copyright (c) 2002, 2012, 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_GC_IMPLEMENTATION_PARALLELSCAVENGE_GCTASKTHREAD_HPP
1.29 +#define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GCTASKTHREAD_HPP
1.30 +
1.31 +#include "runtime/thread.hpp"
1.32 +
1.33 +// Forward declarations of classes defined here.
1.34 +class GCTaskThread;
1.35 +class GCTaskTimeStamp;
1.36 +
1.37 +// Declarations of classes referenced in this file via pointer.
1.38 +class GCTaskManager;
1.39 +
1.40 +class GCTaskThread : public WorkerThread {
1.41 + friend class GCTaskManager;
1.42 +private:
1.43 + // Instance state.
1.44 + GCTaskManager* _manager; // Manager for worker.
1.45 + const uint _processor_id; // Which processor the worker is on.
1.46 +
1.47 + GCTaskTimeStamp* _time_stamps;
1.48 + uint _time_stamp_index;
1.49 +
1.50 + GCTaskTimeStamp* time_stamp_at(uint index);
1.51 +
1.52 + bool _is_working; // True if participating in GC tasks
1.53 +
1.54 + public:
1.55 + // Factory create and destroy methods.
1.56 + static GCTaskThread* create(GCTaskManager* manager,
1.57 + uint which,
1.58 + uint processor_id) {
1.59 + return new GCTaskThread(manager, which, processor_id);
1.60 + }
1.61 + static void destroy(GCTaskThread* manager) {
1.62 + if (manager != NULL) {
1.63 + delete manager;
1.64 + }
1.65 + }
1.66 + // Methods from Thread.
1.67 + bool is_GC_task_thread() const {
1.68 + return true;
1.69 + }
1.70 + virtual void run();
1.71 + // Methods.
1.72 + void start();
1.73 +
1.74 + void print_task_time_stamps();
1.75 + void print_on(outputStream* st) const;
1.76 + void print() const { print_on(tty); }
1.77 +
1.78 +protected:
1.79 + // Constructor. Clients use factory, but there could be subclasses.
1.80 + GCTaskThread(GCTaskManager* manager, uint which, uint processor_id);
1.81 + // Destructor: virtual destructor because of virtual methods.
1.82 + virtual ~GCTaskThread();
1.83 + // Accessors.
1.84 + GCTaskManager* manager() const {
1.85 + return _manager;
1.86 + }
1.87 + uint which() const {
1.88 + return id();
1.89 + }
1.90 + uint processor_id() const {
1.91 + return _processor_id;
1.92 + }
1.93 + void set_is_working(bool v) { _is_working = v; }
1.94 +};
1.95 +
1.96 +class GCTaskTimeStamp : public CHeapObj<mtGC>
1.97 +{
1.98 + private:
1.99 + jlong _entry_time;
1.100 + jlong _exit_time;
1.101 + char* _name;
1.102 +
1.103 + public:
1.104 + jlong entry_time() { return _entry_time; }
1.105 + jlong exit_time() { return _exit_time; }
1.106 + const char* name() const { return (const char*)_name; }
1.107 +
1.108 + void set_entry_time(jlong time) { _entry_time = time; }
1.109 + void set_exit_time(jlong time) { _exit_time = time; }
1.110 + void set_name(char* name) { _name = name; }
1.111 +};
1.112 +
1.113 +#endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_GCTASKTHREAD_HPP
