/*

 * Copyright (c) 2012, 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_VM_JFR_UTILITIES_JFRTIME_HPP

#define SHARE_VM_JFR_UTILITIES_JFRTIME_HPP

#include "utilities/ticks.hpp"

typedef TimeInstant<CounterRepresentation, FastUnorderedElapsedCounterSource> JfrTicks;

typedef TimeInterval<CounterRepresentation, FastUnorderedElapsedCounterSource> JfrTickspan;

class JfrTime {

 private:

  static bool _ft_enabled;

 public:

  static bool initialize();

  static bool is_ft_enabled() { return _ft_enabled; }

  static bool is_ft_supported();

  static jlong frequency();

  static const void* time_function();

};

#endif // SHARE_VM_JFR_UTILITIES_JFRTIME_HPP