1 /*
 2  * Copyright (c) 2017, 2020, 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 
30 #include "gc/shenandoah/shenandoahHeap.hpp"
31 #include "gc/shenandoah/shenandoahHeap.inline.hpp"
32 #include "gc/shenandoah/shenandoahHeapRegion.hpp"
33 
34 bool ShenandoahCollectionSet::is_in(size_t region_idx) const {
35   assert(region_idx < _heap->num_regions(), "Sanity");
36   return _cset_map[region_idx] == 1;
37 }
38 
39 bool ShenandoahCollectionSet::is_in(ShenandoahHeapRegion* r) const {
40   return is_in(r->index());
41 }
42 
43 bool ShenandoahCollectionSet::is_in(oop p) const {
44   shenandoah_assert_in_heap_or_null(nullptr, p);
45   return is_in_loc(cast_from_oop<void*>(p));
46 }
47 
48 bool ShenandoahCollectionSet::is_in_loc(void* p) const {
49   assert(p == nullptr || _heap->is_in(p), "Must be in the heap");
50   uintx index = ((uintx) p) >> _region_size_bytes_shift;
51   // no need to subtract the bottom of the heap from p,
52   // _biased_cset_map is biased
53   return _biased_cset_map[index] == 1;
54 }
55 
56 #endif // SHARE_GC_SHENANDOAH_SHENANDOAHCOLLECTIONSET_INLINE_HPP