/*

 * 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

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#include "precompiled.hpp"

#include "gc/shared/collectedHeap.hpp"

#include "gc/shared/gcConfiguration.hpp"

#include "memory/universe.hpp"

#include "runtime/arguments.hpp"

#include "runtime/globals.hpp"

#include "utilities/debug.hpp"

GCName GCConfiguration::young_collector() const {

  if (UseG1GC) {

    return G1New;

  }

  if (UseParallelGC) {

    return ParallelScavenge;

  }

  if (UseConcMarkSweepGC) {

    return ParNew;

  }

    return NA;

  }

  return DefNew;

}

GCName GCConfiguration::old_collector() const {

  if (UseG1GC) {

    return G1Old;

  }

  if (UseConcMarkSweepGC) {

    return ConcurrentMarkSweep;

  }

  if (UseParallelOldGC) {

    return ParallelOld;

  }

  if (UseZGC) {

    return Z;

  }

  return SerialOld;

}

uint GCConfiguration::num_parallel_gc_threads() const {

  return ParallelGCThreads;

}

uint GCConfiguration::num_concurrent_gc_threads() const {

  return ConcGCThreads;

}

bool GCConfiguration::uses_dynamic_gc_threads() const {

  return UseDynamicNumberOfGCThreads;

}

bool GCConfiguration::is_explicit_gc_concurrent() const {

  return ExplicitGCInvokesConcurrent;

}

bool GCConfiguration::is_explicit_gc_disabled() const {

  return DisableExplicitGC;

}

bool GCConfiguration::has_pause_target_default_value() const {

  return FLAG_IS_DEFAULT(MaxGCPauseMillis);

}

uintx GCConfiguration::pause_target() const {

  return MaxGCPauseMillis;

}

uintx GCConfiguration::gc_time_ratio() const {

  return GCTimeRatio;

}

bool GCTLABConfiguration::uses_tlabs() const {

  return UseTLAB;

}

size_t GCTLABConfiguration::min_tlab_size() const {

  return MinTLABSize;

}

uint GCTLABConfiguration::tlab_refill_waste_limit() const {

  return TLABRefillWasteFraction;

}

intx GCSurvivorConfiguration::max_tenuring_threshold() const {

  return MaxTenuringThreshold;

}

intx GCSurvivorConfiguration::initial_tenuring_threshold() const {

  return InitialTenuringThreshold;

}

size_t GCHeapConfiguration::max_size() const {

  return MaxHeapSize;

}

size_t GCHeapConfiguration::min_size() const {

  return Arguments::min_heap_size();

}

size_t GCHeapConfiguration::initial_size() const {

  return InitialHeapSize;

}

bool GCHeapConfiguration::uses_compressed_oops() const {

  return UseCompressedOops;

}

Universe::NARROW_OOP_MODE GCHeapConfiguration::narrow_oop_mode() const {

  return Universe::narrow_oop_mode();

}

uint GCHeapConfiguration::object_alignment_in_bytes() const {

  return ObjectAlignmentInBytes;

}

int GCHeapConfiguration::heap_address_size_in_bits() const {

  return BitsPerHeapOop;

}

bool GCYoungGenerationConfiguration::has_max_size_default_value() const {

  return FLAG_IS_DEFAULT(MaxNewSize);

}

uintx GCYoungGenerationConfiguration::max_size() const {

  return MaxNewSize;

}

uintx GCYoungGenerationConfiguration::min_size() const {

  return NewSize;

}

intx GCYoungGenerationConfiguration::new_ratio() const {

  return NewRatio;

}