1/*
2 * Copyright (c) 2015, 2018, 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.
22 */
23
24#ifndef SHARE_GC_Z_ZWORKERS_HPP
25#define SHARE_GC_Z_ZWORKERS_HPP
26
27#include "gc/shared/workgroup.hpp"
28#include "memory/allocation.hpp"
29
30class ZTask;
31
32class ZWorkers {
33private:
34 bool _boost;
35 WorkGang _workers;
36
37 void run(ZTask* task, uint nworkers);
38
39public:
40 static uint calculate_nparallel();
41 static uint calculate_nconcurrent();
42
43 ZWorkers();
44
45 uint nparallel() const;
46 uint nparallel_no_boost() const;
47 uint nconcurrent() const;
48 uint nconcurrent_no_boost() const;
49 uint nworkers() const;
50
51 void set_boost(bool boost);
52
53 void run_parallel(ZTask* task);
54 void run_concurrent(ZTask* task);
55
56 void threads_do(ThreadClosure* tc) const;
57 void print_threads_on(outputStream* st) const;
58};
59
60#endif // SHARE_GC_Z_ZWORKERS_HPP
61