/*

 * Copyright (c) 2014, 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.

 *

 */

#include "precompiled.hpp"

#include "memory/allocation.inline.hpp"

#include "runtime/task.hpp"

#include "runtime/rtmLocking.hpp"

// One-shot PeriodicTask subclass for enabling RTM locking

uintx RTMLockingCounters::_calculation_flag = 0;

class RTMLockingCalculationTask : public PeriodicTask {

 public:

  RTMLockingCalculationTask(size_t interval_time) : PeriodicTask(interval_time){  }

  virtual void task() {

    RTMLockingCounters::_calculation_flag = 1;

    // Reclaim our storage and disenroll ourself

    delete this;

  }

};

void RTMLockingCounters::init() {

  if (UseRTMLocking && RTMLockingCalculationDelay > 0) {

    RTMLockingCalculationTask* task = new RTMLockingCalculationTask(RTMLockingCalculationDelay);

    task->enroll();

  } else {

    _calculation_flag = 1;

  }

}

//------------------------------print_on-------------------------------

void RTMLockingCounters::print_on(outputStream* st) {

  tty->print_cr("# rtm locks total (estimated): " UINTX_FORMAT, _total_count * RTMTotalCountIncrRate);

  tty->print_cr("# rtm lock aborts  : " UINTX_FORMAT, _abort_count);

  for (int i = 0; i < ABORT_STATUS_LIMIT; i++) {

    tty->print_cr("# rtm lock aborts %d: " UINTX_FORMAT, i, _abortX_count[i]);

  }

}