--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/parallel/gcTaskThread.hpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2002, 2017, 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_GC_PARALLEL_GCTASKTHREAD_HPP
+#define SHARE_VM_GC_PARALLEL_GCTASKTHREAD_HPP
+
+#include "runtime/thread.hpp"
+
+// Forward declarations of classes defined here.
+class GCTaskThread;
+class GCTaskTimeStamp;
+
+// Declarations of classes referenced in this file via pointer.
+class GCTaskManager;
+
+class GCTaskThread : public WorkerThread {
+ friend class GCTaskManager;
+private:
+ // Instance state.
+ GCTaskManager* _manager; // Manager for worker.
+ const uint _processor_id; // Which processor the worker is on.
+
+ GCTaskTimeStamp* _time_stamps;
+ uint _time_stamp_index;
+
+ GCTaskTimeStamp* time_stamp_at(uint index);
+ void add_task_timestamp(const char* name, jlong t_entry, jlong t_exit);
+
+ bool _is_working; // True if participating in GC tasks
+
+ // Factory create and destroy methods.
+ static GCTaskThread* create(GCTaskManager* manager,
+ uint which,
+ uint processor_id) {
+ return new GCTaskThread(manager, which, processor_id);
+ }
+ public:
+
+ static void destroy(GCTaskThread* manager) {
+ if (manager != NULL) {
+ delete manager;
+ }
+ }
+ // Methods from Thread.
+ bool is_GC_task_thread() const {
+ return true;
+ }
+ virtual void run();
+
+ void print_task_time_stamps();
+
+protected:
+ // Constructor. Clients use factory, but there could be subclasses.
+ GCTaskThread(GCTaskManager* manager, uint which, uint processor_id);
+ // Destructor: virtual destructor because of virtual methods.
+ virtual ~GCTaskThread();
+ // Accessors.
+ GCTaskManager* manager() const {
+ return _manager;
+ }
+ uint which() const {
+ return id();
+ }
+ uint processor_id() const {
+ return _processor_id;
+ }
+ void set_is_working(bool v) { _is_working = v; }
+};
+
+class GCTaskTimeStamp : public CHeapObj<mtGC>
+{
+ private:
+ jlong _entry_time;
+ jlong _exit_time;
+ const char* _name;
+
+ public:
+ jlong entry_time() { return _entry_time; }
+ jlong exit_time() { return _exit_time; }
+ const char* name() const { return _name; }
+
+ void set_entry_time(jlong time) { _entry_time = time; }
+ void set_exit_time(jlong time) { _exit_time = time; }
+ void set_name(const char* name) { _name = name; }
+};
+
+#endif // SHARE_VM_GC_PARALLEL_GCTASKTHREAD_HPP