/*

 * Copyright (c) 2017, 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/serial/serialHeap.hpp"

#include "gc/shared/genMemoryPools.hpp"

#include "services/memoryManager.hpp"

SerialHeap* SerialHeap::heap() {

  CollectedHeap* heap = Universe::heap();

  assert(heap != NULL, "Uninitialized access to SerialHeap::heap()");

  assert(heap->kind() == CollectedHeap::Serial, "Invalid name");

  return static_cast<SerialHeap*>(heap);

}

SerialHeap::SerialHeap(GenCollectorPolicy* policy) :

    GenCollectedHeap(policy,

                     Generation::DefNew,

                     Generation::MarkSweepCompact,

                     "Copy:MSC"),

    _eden_pool(NULL),

    _survivor_pool(NULL),

    _old_pool(NULL) {

  _young_manager = new GCMemoryManager("Copy", "end of minor GC");

  _old_manager = new GCMemoryManager("MarkSweepCompact", "end of major GC");

}

void SerialHeap::initialize_serviceability() {

  DefNewGeneration* young = young_gen();

  // Add a memory pool for each space and young gen doesn't

  // support low memory detection as it is expected to get filled up.

  _eden_pool = new ContiguousSpacePool(young->eden(),

                                       "Eden Space",

                                       young->max_eden_size(),

                                       false /* support_usage_threshold */);

  _survivor_pool = new SurvivorContiguousSpacePool(young,

                                                   "Survivor Space",

                                                   young->max_survivor_size(),

                                                   false /* support_usage_threshold */);

  TenuredGeneration* old = old_gen();

  _old_pool = new GenerationPool(old, "Tenured Gen", true);

  _young_manager->add_pool(_eden_pool);

  _young_manager->add_pool(_survivor_pool);

  young->set_gc_manager(_young_manager);

  _old_manager->add_pool(_eden_pool);

  _old_manager->add_pool(_survivor_pool);

  _old_manager->add_pool(_old_pool);

  old->set_gc_manager(_old_manager);

}

GrowableArray<GCMemoryManager*> SerialHeap::memory_managers() {

  GrowableArray<GCMemoryManager*> memory_managers(2);

  memory_managers.append(_young_manager);

  memory_managers.append(_old_manager);

  return memory_managers;

}

GrowableArray<MemoryPool*> SerialHeap::memory_pools() {

  GrowableArray<MemoryPool*> memory_pools(3);

  memory_pools.append(_eden_pool);

  memory_pools.append(_survivor_pool);

  memory_pools.append(_old_pool);

  return memory_pools;

}