1/*
2 * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
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.
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23 */
24
25#ifndef SHARE_GC_SHARED_WORKERDATAARRAY_HPP
26#define SHARE_GC_SHARED_WORKERDATAARRAY_HPP
27
28#include "memory/allocation.hpp"
29#include "utilities/debug.hpp"
30
31class outputStream;
32
33template <class T>
34class WorkerDataArray : public CHeapObj<mtGC> {
35 friend class WDAPrinter;
36public:
37 static const uint MaxThreadWorkItems = 5;
38private:
39 T* _data;
40 uint _length;
41 const char* _title;
42
43 WorkerDataArray<size_t>* _thread_work_items[MaxThreadWorkItems];
44
45 public:
46 WorkerDataArray(uint length, const char* title);
47 ~WorkerDataArray();
48
49 void link_thread_work_items(WorkerDataArray<size_t>* thread_work_items, uint index = 0);
50 void set_thread_work_item(uint worker_i, size_t value, uint index = 0);
51 void add_thread_work_item(uint worker_i, size_t value, uint index = 0);
52 void set_or_add_thread_work_item(uint worker_i, size_t value, uint index = 0);
53 size_t get_thread_work_item(uint worker_i, uint index = 0);
54
55 WorkerDataArray<size_t>* thread_work_items(uint index = 0) const {
56 assert(index < MaxThreadWorkItems, "Tried to access thread work item %u max %u", index, MaxThreadWorkItems);
57 return _thread_work_items[index];
58 }
59
60 static T uninitialized();
61
62 void set(uint worker_i, T value);
63 T get(uint worker_i) const;
64
65 void add(uint worker_i, T value);
66
67 // The sum() and average() methods below consider uninitialized slots to be 0.
68 double average() const;
69 T sum() const;
70
71 const char* title() const {
72 return _title;
73 }
74
75 void reset();
76 void set_all(T value);
77
78
79 private:
80 class WDAPrinter {
81 public:
82 static void summary(outputStream* out, double min, double avg, double max, double diff, double sum, bool print_sum);
83 static void summary(outputStream* out, size_t min, double avg, size_t max, size_t diff, size_t sum, bool print_sum);
84
85 static void details(const WorkerDataArray<double>* phase, outputStream* out);
86 static void details(const WorkerDataArray<size_t>* phase, outputStream* out);
87 };
88
89 public:
90 void print_summary_on(outputStream* out, bool print_sum = true) const;
91 void print_details_on(outputStream* out) const;
92};
93
94#endif // SHARE_GC_SHARED_WORKERDATAARRAY_HPP
95