/*

 * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * 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_GC_SHARED_WORKERDATAARRAY_INLINE_HPP

#define SHARE_VM_GC_SHARED_WORKERDATAARRAY_INLINE_HPP

#include "gc/shared/workerDataArray.hpp"

#include "memory/allocation.inline.hpp"

#include "utilities/ostream.hpp"

template <typename T>

WorkerDataArray<T>::WorkerDataArray(uint length, const char* title) :

 _data(NULL),

 _length(length),

 _title(title) {

  assert(length > 0, "Must have some workers to store data for");

  _data = NEW_C_HEAP_ARRAY(T, _length, mtGC);

  for (uint i = 0; i < MaxThreadWorkItems; i++) {

    _thread_work_items[i] = NULL;

  }

  reset();

}

template <typename T>

void WorkerDataArray<T>::set(uint worker_i, T value) {

  assert(worker_i < _length, "Worker %d is greater than max: %d", worker_i, _length);

  assert(_data[worker_i] == uninitialized(), "Overwriting data for worker %d in %s", worker_i, _title);

  _data[worker_i] = value;

}

template <typename T>

T WorkerDataArray<T>::get(uint worker_i) const {

  assert(worker_i < _length, "Worker %d is greater than max: %d", worker_i, _length);

  return _data[worker_i];

}

template <typename T>

WorkerDataArray<T>::~WorkerDataArray() {

  FREE_C_HEAP_ARRAY(T, _data);

}

template <typename T>

void WorkerDataArray<T>::link_thread_work_items(WorkerDataArray<size_t>* thread_work_items, uint index) {

  assert(index < MaxThreadWorkItems, "Tried to access thread work item %u (max %u)", index, MaxThreadWorkItems);

  _thread_work_items[index] = thread_work_items;

}

template <typename T>

void WorkerDataArray<T>::set_thread_work_item(uint worker_i, size_t value, uint index) {

  assert(index < MaxThreadWorkItems, "Tried to access thread work item %u (max %u)", index, MaxThreadWorkItems);

  assert(_thread_work_items[index] != NULL, "No sub count");

  _thread_work_items[index]->set(worker_i, value);

}

template <typename T>

void WorkerDataArray<T>::add_thread_work_item(uint worker_i, size_t value, uint index) {

  assert(index < MaxThreadWorkItems, "Tried to access thread work item %u (max %u)", index, MaxThreadWorkItems);

  assert(_thread_work_items[index] != NULL, "No sub count");

  _thread_work_items[index]->add(worker_i, value);

}

template <typename T>

void WorkerDataArray<T>::add(uint worker_i, T value) {

  assert(worker_i < _length, "Worker %d is greater than max: %d", worker_i, _length);

  assert(_data[worker_i] != uninitialized(), "No data to add to for worker %d", worker_i);

  _data[worker_i] += value;

}

template <typename T>

double WorkerDataArray<T>::average() const {

  uint contributing_threads = 0;

  for (uint i = 0; i < _length; ++i) {

    if (get(i) != uninitialized()) {

      contributing_threads++;

    }

  }

  if (contributing_threads == 0) {

    return 0.0;

  }

  return sum() / (double) contributing_threads;

}

template <typename T>

T WorkerDataArray<T>::sum() const {

  T s = 0;

  for (uint i = 0; i < _length; ++i) {

    if (get(i) != uninitialized()) {

      s += get(i);

    }

  }

  return s;

}

template <typename T>

void WorkerDataArray<T>::set_all(T value) {

  for (uint i = 0; i < _length; i++) {

    _data[i] = value;

  }

}

template <class T>

void WorkerDataArray<T>::print_summary_on(outputStream* out, bool print_sum) const {

  out->print("%-25s", title());

  uint start = 0;

  while (start < _length && get(start) == uninitialized()) {

    start++;

  }

  if (start < _length) {

    T min = get(start);

    T max = min;

    T sum = 0;

    uint contributing_threads = 0;

    for (uint i = start; i < _length; ++i) {

      T value = get(i);

      if (value != uninitialized()) {

        max = MAX2(max, value);

        min = MIN2(min, value);

        sum += value;

        contributing_threads++;

      }

    }

    T diff = max - min;

    assert(contributing_threads != 0, "Must be since we found a used value for the start index");

    double avg = sum / (double) contributing_threads;

    WDAPrinter::summary(out, min, avg, max, diff, sum, print_sum);

    out->print_cr(", Workers: %d", contributing_threads);

  } else {

    // No data for this phase.

    out->print_cr(" skipped");

  }

}

template <class T>

void WorkerDataArray<T>::print_details_on(outputStream* out) const {

  WDAPrinter::details(this, out);

}

template <typename T>

void WorkerDataArray<T>::reset() {

  set_all(uninitialized());

  for (uint i = 0; i < MaxThreadWorkItems; i++) {

    if (_thread_work_items[i] != NULL) {

      _thread_work_items[i]->reset();

    }

  }

}

#endif // SHARE_VM_GC_SHARED_WORKERDATAARRAY_INLINE_HPP