1 /*
 2  * Copyright Amazon.com Inc. 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
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24 
25 #ifndef SRC_SHARE_GC_SHENANDOAH_SHENANDOAHHEAPREGIONCLOSURES_HPP
26 #define SRC_SHARE_GC_SHENANDOAH_SHENANDOAHHEAPREGIONCLOSURES_HPP
27 
28 
29 #include "gc/shenandoah/shenandoahHeap.hpp"
30 #include "gc/shenandoah/shenandoahHeapRegion.inline.hpp"
31 
32 // Applies the given closure to all regions with the given affiliation
33 template<ShenandoahAffiliation AFFILIATION>
34 class ShenandoahIncludeRegionClosure : public ShenandoahHeapRegionClosure {
35 private:
36   ShenandoahHeapRegionClosure* _closure;
37 
38 public:
39   explicit ShenandoahIncludeRegionClosure(ShenandoahHeapRegionClosure* closure): _closure(closure) {}
40 
41   void heap_region_do(ShenandoahHeapRegion* r) override {
42     if (r->affiliation() == AFFILIATION) {
43       _closure->heap_region_do(r);
44     }
45   }
46 
47   bool is_thread_safe() override {
48     return _closure->is_thread_safe();
49   }
50 };
51 
52 // Applies the given closure to all regions without the given affiliation
53 template<ShenandoahAffiliation AFFILIATION>
54 class ShenandoahExcludeRegionClosure : public ShenandoahHeapRegionClosure {
55 private:
56   ShenandoahHeapRegionClosure* _closure;
57 
58 public:
59   explicit ShenandoahExcludeRegionClosure(ShenandoahHeapRegionClosure* closure): _closure(closure) {}
60 
61   void heap_region_do(ShenandoahHeapRegion* r) override {
62     if (r->affiliation() != AFFILIATION) {
63       _closure->heap_region_do(r);
64     }
65   }
66 
67   bool is_thread_safe() override {
68     return _closure->is_thread_safe();
69   }
70 };
71 
72 #endif //SRC_SHARE_GC_SHENANDOAH_SHENANDOAHHEAPREGIONCLOSURES_HPP