1 /* 2 * Copyright (c) 2020, Amazon.com, Inc. and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef SHARE_VM_GC_SHENANDOAH_SHENANDOAHGLOBALGENERATION_HPP 26 #define SHARE_VM_GC_SHENANDOAH_SHENANDOAHGLOBALGENERATION_HPP 27 28 #include "gc/shenandoah/shenandoahGeneration.hpp" 29 30 // A "generation" that represents the whole heap. 31 class ShenandoahGlobalGeneration : public ShenandoahGeneration { 32 public: 33 ShenandoahGlobalGeneration(uint max_queues) 34 : ShenandoahGeneration(GLOBAL, max_queues, 0, 0) { } 35 36 public: 37 virtual const char* name() const override; 38 39 virtual size_t max_capacity() const override; 40 virtual size_t soft_max_capacity() const override; 41 virtual size_t used_regions_size() const override; 42 virtual size_t used() const override; 43 virtual size_t available() const override; 44 45 virtual void set_concurrent_mark_in_progress(bool in_progress) override; 46 47 bool contains(ShenandoahHeapRegion* region) const override; 48 49 bool contains(oop obj) const override { return true; } 50 51 void parallel_heap_region_iterate(ShenandoahHeapRegionClosure* cl) override; 52 53 void heap_region_iterate(ShenandoahHeapRegionClosure* cl) override; 54 55 bool is_concurrent_mark_in_progress() override; 56 }; 57 58 #endif // SHARE_VM_GC_SHENANDOAH_SHENANDOAHGLOBALGENERATION_HPP 59