/*

 * Copyright (c) 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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 */

#include "precompiled.hpp"

#include "gc/g1/g1HeterogeneousHeapYoungGenSizer.hpp"

#include "gc/g1/heapRegion.hpp"

G1HeterogeneousHeapYoungGenSizer::G1HeterogeneousHeapYoungGenSizer() : G1YoungGenSizer() {

  // will be used later when min and max young size is calculated.

}

// Since heap is sized potentially to larger value accounting for dram + nvdimm, we need to limit

// max young gen size to the available dram.

// Call parent class method first and then adjust sizes based on available dram

void G1HeterogeneousHeapYoungGenSizer::adjust_max_new_size(uint number_of_heap_regions) {

  G1YoungGenSizer::adjust_max_new_size(number_of_heap_regions);

  adjust_lengths_based_on_dram_memory();

}

void G1HeterogeneousHeapYoungGenSizer::heap_size_changed(uint new_number_of_heap_regions) {

  G1YoungGenSizer::heap_size_changed(new_number_of_heap_regions);

  adjust_lengths_based_on_dram_memory();

}

void G1HeterogeneousHeapYoungGenSizer::adjust_lengths_based_on_dram_memory() {

  _min_desired_young_length = MIN2(_min_desired_young_length, _max_young_length);

  _max_desired_young_length = MIN2(_max_desired_young_length, _max_young_length);

}