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
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24  */
25 package hat.backend;
26 
27 import hat.ComputeContext;
28 import hat.Config;
29 import hat.KernelContext;
30 import hat.buffer.Buffer;
31 import hat.callgraph.KernelCallGraph;
32 import hat.callgraph.KernelEntrypoint;
33 import hat.ifacemapper.BoundSchema;
34 import hat.ifacemapper.SegmentMapper;
35 
36 import java.lang.foreign.Arena;
37 import java.lang.reflect.InvocationTargetException;
38 
39 public abstract class BackendAdaptor extends Backend {
40     BackendAdaptor(Config config) {
41         super(config);
42     }
43 
44     @Override
45     public void computeContextHandoff(ComputeContext computeContext) {
46 
47     }
48 
49     @Override
50     public void dispatchCompute(ComputeContext computeContext, Object... args) {
51         try {
52             computeContext.computeCallGraph.entrypoint.method.invoke(null, args);
53         } catch (IllegalAccessException | InvocationTargetException e) {
54             throw new RuntimeException(e);
55         }
56     }
57 
58     @Override
59     public void dispatchKernel(KernelCallGraph kernelCallGraph, KernelContext kernelContext, Object... args) {
60         KernelEntrypoint kernelEntrypoint = kernelCallGraph.entrypoint;
61         for (kernelContext.gix = 0; kernelContext.gix < kernelContext.gsx; kernelContext.gix++) {
62             try {
63                 args[0] = kernelContext;
64                 kernelEntrypoint.method.invoke(null, args);
65             } catch (IllegalAccessException e) {
66                 throw new RuntimeException(e);
67             } catch (InvocationTargetException e) {
68                 throw new RuntimeException(e);
69             }
70         }
71     }
72 
73     @Override
74     public <T extends Buffer> T allocate(SegmentMapper<T> segmentMapper, BoundSchema<T> boundSchema) {
75         return segmentMapper.allocate(Arena.global(), boundSchema);
76     }
77 
78 }