1 /*
 2  * Copyright (c) 2022, 2023, 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.
 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
21  * questions.
22  */
23 
24 /*
25  * @test
26  * @enablePreview
27  * @requires jdk.foreign.linker != "UNSUPPORTED"
28  * @modules java.base/jdk.internal.foreign
29  * @build NativeTestHelper CallGeneratorHelper TestUpcallBase
30  *
31  * @run testng/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-VerifyDependencies
32  *   --enable-native-access=ALL-UNNAMED -Dgenerator.sample.factor=17
33  *   TestUpcallScope
34  */
35 
36 import java.lang.foreign.Arena;
37 import java.lang.foreign.FunctionDescriptor;
38 import java.lang.foreign.MemorySegment;
39 
40 import org.testng.annotations.Test;
41 
42 import java.lang.invoke.MethodHandle;
43 import java.util.ArrayList;
44 import java.util.List;
45 import java.util.concurrent.atomic.AtomicReference;
46 import java.util.function.Consumer;
47 
48 public class TestUpcallScope extends TestUpcallBase {
49 
50     static {
51         System.loadLibrary("TestUpcall");
52     }
53 
54     @Test(dataProvider="functions", dataProviderClass=CallGeneratorHelper.class)
55     public void testUpcalls(int count, String fName, Ret ret, List<ParamType> paramTypes, List<StructFieldType> fields) throws Throwable {
56         List<Consumer<Object>> returnChecks = new ArrayList<>();
57         List<Consumer<Object>> argChecks = new ArrayList<>();
58         MemorySegment addr = findNativeOrThrow(fName);
59         try (Arena arena = Arena.ofConfined()) {
60             FunctionDescriptor descriptor = function(ret, paramTypes, fields);
61             MethodHandle mh = downcallHandle(LINKER, addr, arena, descriptor);
62             AtomicReference<Object[]> capturedArgs = new AtomicReference<>();
63             Object[] args = makeArgs(capturedArgs, arena, descriptor, returnChecks, argChecks, 0);
64 
65             Object res = mh.invokeWithArguments(args);
66 
67             if (ret == Ret.NON_VOID) {
68                 returnChecks.forEach(c -> c.accept(res));
69             }
70 
71             Object[] capturedArgsArr = capturedArgs.get();
72             for (int i = 0; i < capturedArgsArr.length; i++) {
73                 argChecks.get(i).accept(capturedArgsArr[i]);
74             }
75         }
76     }
77 
78 }