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 TestDowncallBase
30 *
31 * @run testng/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-VerifyDependencies
32 * --enable-native-access=ALL-UNNAMED -Dgenerator.sample.factor=17
33 * TestDowncallScope
34 *
35 * @run testng/othervm -Xint -XX:+IgnoreUnrecognizedVMOptions -XX:-VerifyDependencies
36 * --enable-native-access=ALL-UNNAMED -Dgenerator.sample.factor=100000
37 * TestDowncallScope
38 */
39
40 import org.testng.annotations.Test;
41
42 import java.lang.foreign.*;
43 import java.util.ArrayList;
44 import java.util.List;
45 import java.util.function.Consumer;
46
47 import static org.testng.Assert.assertEquals;
48
49 public class TestDowncallScope extends TestDowncallBase {
50
51 static {
52 System.loadLibrary("TestDowncall");
53 }
54
55 @Test(dataProvider="functions", dataProviderClass=CallGeneratorHelper.class)
56 public void testDowncall(int count, String fName, CallGeneratorHelper.Ret ret,
57 List<CallGeneratorHelper.ParamType> paramTypes,
58 List<CallGeneratorHelper.StructFieldType> fields) throws Throwable {
59 List<Consumer<Object>> checks = new ArrayList<>();
60 MemorySegment addr = findNativeOrThrow(fName);
61 FunctionDescriptor descriptor = function(ret, paramTypes, fields);
62 try (Arena arena = Arena.ofShared()) {
63 Object[] args = makeArgs(arena, descriptor, checks);
64 boolean needsScope = descriptor.returnLayout().map(GroupLayout.class::isInstance).orElse(false);
65 SegmentAllocator allocator = needsScope ?
66 arena :
67 THROWING_ALLOCATOR;
68 Object res = doCall(addr, allocator, descriptor, args);
69 if (ret == CallGeneratorHelper.Ret.NON_VOID) {
70 checks.forEach(c -> c.accept(res));
71 if (needsScope) {
72 // check that return struct has indeed been allocated in the native scope
73 assertEquals(((MemorySegment)res).scope(), arena.scope());
74 }
75 }
76 }
77 }
78
79 static FunctionDescriptor function(Ret ret, List<ParamType> params, List<StructFieldType> fields) {
80 return function(ret, params, fields, List.of());
81 }
82
83 static Object[] makeArgs(Arena arena, FunctionDescriptor descriptor, List<Consumer<Object>> checks) {
84 return makeArgs(arena, descriptor, checks, 0);
85 }
86
87 }