1 /*
 2  * Copyright (c) 2020, Red Hat, Inc. All rights reserved.
 3  * Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
 4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 5  *
 6  * This code is free software; you can redistribute it and/or modify it
 7  * under the terms of the GNU General Public License version 2 only, as
 8  * published by the Free Software Foundation.
 9  *
10  * This code is distributed in the hope that it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13  * version 2 for more details (a copy is included in the LICENSE file that
14  * accompanied this code).
15  *
16  * You should have received a copy of the GNU General Public License version
17  * 2 along with this work; if not, write to the Free Software Foundation,
18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19  *
20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21  * or visit www.oracle.com if you need additional information or have any
22  * questions.
23  *
24  */
25 
26 #include "precompiled.hpp"
27 #include "gc/shenandoah/heuristics/shenandoahAdaptiveHeuristics.hpp"
28 #include "gc/shenandoah/heuristics/shenandoahAggressiveHeuristics.hpp"
29 #include "gc/shenandoah/heuristics/shenandoahCompactHeuristics.hpp"
30 #include "gc/shenandoah/heuristics/shenandoahSpaceInfo.hpp"
31 #include "gc/shenandoah/heuristics/shenandoahStaticHeuristics.hpp"
32 #include "gc/shenandoah/mode/shenandoahMode.hpp"
33 
34 ShenandoahHeuristics* ShenandoahMode::initialize_heuristics(ShenandoahSpaceInfo* space_info) const {
35   if (ShenandoahGCHeuristics == nullptr) {
36     vm_exit_during_initialization("Unknown -XX:ShenandoahGCHeuristics option (null)");
37   }
38 
39   if (strcmp(ShenandoahGCHeuristics, "aggressive") == 0) {
40     return new ShenandoahAggressiveHeuristics(space_info);
41   } else if (strcmp(ShenandoahGCHeuristics, "static") == 0) {
42     return new ShenandoahStaticHeuristics(space_info);
43   } else if (strcmp(ShenandoahGCHeuristics, "adaptive") == 0) {
44     return new ShenandoahAdaptiveHeuristics(space_info);
45   } else if (strcmp(ShenandoahGCHeuristics, "compact") == 0) {
46     return new ShenandoahCompactHeuristics(space_info);
47   } else {
48     vm_exit_during_initialization("Unknown -XX:ShenandoahGCHeuristics option");
49   }
50 
51   ShouldNotReachHere();
52   return nullptr;
53 }
54