1 /*
 2  * Copyright (c) 2018, 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
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24 
25 #ifndef SHARE_GC_SHENANDOAH_HEURISTICS_SHENANDOAHPASSIVEHEURISTICS_HPP
26 #define SHARE_GC_SHENANDOAH_HEURISTICS_SHENANDOAHPASSIVEHEURISTICS_HPP
27 
28 #include "gc/shenandoah/heuristics/shenandoahHeuristics.hpp"
29 
30 class ShenandoahPassiveHeuristics : public ShenandoahHeuristics {
31 public:
32   virtual bool should_start_gc();
33 
34   virtual bool should_unload_classes();
35 
36   virtual bool should_degenerate_cycle();
37 
38   virtual void choose_collection_set_from_regiondata(ShenandoahCollectionSet* set,
39                                                      RegionData* data, size_t data_size,
40                                                      size_t free);
41 
42   virtual const char* name()     { return "Passive"; }
43   virtual bool is_diagnostic()   { return true; }
44   virtual bool is_experimental() { return false; }
45 };
46 
47 #endif // SHARE_GC_SHENANDOAH_HEURISTICS_SHENANDOAHPASSIVEHEURISTICS_HPP