1 /*
 2  * Copyright (c) 2024, Oracle and/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.  Oracle designates this
 8  * particular file as subject to the "Classpath" exception as provided
 9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 package nbodygl;
26 
27 import hat.Accelerator;
28 import optkl.ifacemapper.BoundSchema;
29 import optkl.ifacemapper.Buffer;
30 import hat.types.Float4;
31 import optkl.ifacemapper.Schema;
32 
33 public interface Universe extends Buffer {
34     int length();
35     default Float4[] posArrView(){
36         return null;
37     }
38     default Float4[] velArrView(){
39         return null;
40     }
41     interface Body extends Struct {
42         float x();
43 
44         float y();
45 
46         float z();
47 
48         float vx();
49 
50         float vy();
51 
52         float vz();
53 
54         void x(float x);
55 
56         void y(float y);
57 
58         void z(float z);
59 
60         void vx(float vx);
61 
62         void vy(float vy);
63 
64         void vz(float vz);
65     }
66 
67     Body body(long idx);
68 
69     /*
70     typedef struct Body_s{
71         float x;
72         float y;
73         float y;
74         float vx;
75         float vy;
76         float y;
77     } Body_t;
78 
79     typedef struct Universe_s{
80        int length;
81        Body_t body[1];
82     }Universe_t;
83 
84      */
85     Schema<Universe> schema = Schema.of(Universe.class, resultTable -> resultTable
86 
87             .arrayLen("length").array("body", array -> array
88                     .fields("x", "y", "z", "vx", "vy", "vz")
89             )
90     );
91 
92     static Universe create(Accelerator accelerator, int length) {
93         return BoundSchema.of(accelerator ,schema, length).allocate();
94     }
95 
96 }