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