1 /* 2 * Copyright (c) 2017, 2019, Red Hat, Inc. 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_GC_SHENANDOAH_SHENANDOAHCOLLECTIONSET_INLINE_HPP 26 #define SHARE_GC_SHENANDOAH_SHENANDOAHCOLLECTIONSET_INLINE_HPP 27 28 #include "gc/shenandoah/shenandoahCollectionSet.hpp" 29 #include "gc/shenandoah/shenandoahHeap.hpp" 30 #include "gc/shenandoah/shenandoahHeap.inline.hpp" 31 #include "gc/shenandoah/shenandoahHeapRegion.hpp" 32 33 bool ShenandoahCollectionSet::is_in(size_t region_number) const { 34 assert(region_number < _heap->num_regions(), "Sanity"); 35 return _cset_map[region_number] == 1; 36 } 37 38 bool ShenandoahCollectionSet::is_in(ShenandoahHeapRegion* r) const { 39 return is_in(r->region_number()); 40 } 41 42 bool ShenandoahCollectionSet::is_in(HeapWord* p) const { 43 assert(_heap->is_in(p), "Must be in the heap"); 44 uintx index = ((uintx) p) >> _region_size_bytes_shift; 45 // no need to subtract the bottom of the heap from p, 46 // _biased_cset_map is biased 47 return _biased_cset_map[index] == 1; 48 } 49 50 #endif // SHARE_GC_SHENANDOAH_SHENANDOAHCOLLECTIONSET_INLINE_HPP