/*

 * Copyright (c) 2015, 2018, 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

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 */

#ifndef SHARE_GC_Z_ZWORKERS_HPP

#define SHARE_GC_Z_ZWORKERS_HPP

#include "gc/shared/workgroup.hpp"

#include "memory/allocation.hpp"

class ZTask;

class ZWorkers {

private:

  bool     _boost;

  WorkGang _workers;

  void run(ZTask* task, uint nworkers);

public:

  static uint calculate_nparallel();

  static uint calculate_nconcurrent();

  ZWorkers();

  uint nparallel() const;

  uint nparallel_no_boost() const;

  uint nconcurrent() const;

  uint nconcurrent_no_boost() const;

  uint nworkers() const;

  void set_boost(bool boost);

  void run_parallel(ZTask* task);

  void run_concurrent(ZTask* task);

  void threads_do(ThreadClosure* tc) const;

  void print_threads_on(outputStream* st) const;

};

#endif // SHARE_GC_Z_ZWORKERS_HPP