1 /*
2 * Copyright (c) 2019, 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 /*
26 * @test
27 * @modules java.base/jdk.internal.misc
28 * jdk.incubator.foreign/jdk.incubator.foreign.unsafe
29 * @run testng TestNative
30 */
31
32 import jdk.incubator.foreign.MemoryLayouts;
33 import jdk.incubator.foreign.MemoryLayout;
34 import jdk.incubator.foreign.MemoryLayout.PathElement;
35 import jdk.incubator.foreign.unsafe.ForeignUnsafe;
36 import jdk.internal.misc.Unsafe;
37 import org.testng.annotations.*;
38
39 import jdk.incubator.foreign.MemoryAddress;
40 import jdk.incubator.foreign.MemorySegment;
41 import jdk.incubator.foreign.SequenceLayout;
42
43 import java.lang.invoke.VarHandle;
44 import java.nio.Buffer;
45 import java.nio.ByteBuffer;
46 import java.nio.ByteOrder;
47 import java.nio.CharBuffer;
48 import java.nio.DoubleBuffer;
49 import java.nio.FloatBuffer;
50 import java.nio.IntBuffer;
51 import java.nio.LongBuffer;
52 import java.nio.ShortBuffer;
53 import java.util.function.BiConsumer;
54 import java.util.function.BiFunction;
55 import java.util.function.Consumer;
56 import java.util.function.Function;
57
58 import static org.testng.Assert.*;
59
60 public class TestNative {
61
62 static Unsafe UNSAFE;
63
64 static {
65 UNSAFE = Unsafe.getUnsafe();
66 }
67
68 static SequenceLayout bytes = MemoryLayout.ofSequence(100,
69 MemoryLayouts.JAVA_BYTE.withOrder(ByteOrder.nativeOrder())
70 );
71
72 static SequenceLayout chars = MemoryLayout.ofSequence(100,
73 MemoryLayouts.JAVA_CHAR.withOrder(ByteOrder.nativeOrder())
74 );
75
76 static SequenceLayout shorts = MemoryLayout.ofSequence(100,
77 MemoryLayouts.JAVA_SHORT.withOrder(ByteOrder.nativeOrder())
78 );
79
80 static SequenceLayout ints = MemoryLayout.ofSequence(100,
81 MemoryLayouts.JAVA_INT.withOrder(ByteOrder.nativeOrder())
82 );
83
84 static SequenceLayout floats = MemoryLayout.ofSequence(100,
85 MemoryLayouts.JAVA_FLOAT.withOrder(ByteOrder.nativeOrder())
86 );
87
88 static SequenceLayout longs = MemoryLayout.ofSequence(100,
89 MemoryLayouts.JAVA_LONG.withOrder(ByteOrder.nativeOrder())
90 );
91
92 static SequenceLayout doubles = MemoryLayout.ofSequence(100,
93 MemoryLayouts.JAVA_DOUBLE.withOrder(ByteOrder.nativeOrder())
94 );
95
96 static VarHandle byteHandle = bytes.varHandle(byte.class, PathElement.sequenceElement());
97 static VarHandle charHandle = chars.varHandle(char.class, PathElement.sequenceElement());
98 static VarHandle shortHandle = shorts.varHandle(short.class, PathElement.sequenceElement());
99 static VarHandle intHandle = ints.varHandle(int.class, PathElement.sequenceElement());
100 static VarHandle floatHandle = floats.varHandle(float.class, PathElement.sequenceElement());
101 static VarHandle longHandle = doubles.varHandle(long.class, PathElement.sequenceElement());
102 static VarHandle doubleHandle = longs.varHandle(double.class, PathElement.sequenceElement());
103
104 static void initBytes(MemoryAddress base, SequenceLayout seq, BiConsumer<MemoryAddress, Long> handleSetter) {
105 for (long i = 0; i < seq.elementCount().getAsLong() ; i++) {
106 handleSetter.accept(base, i);
107 }
108 }
109
110 static <Z extends Buffer> void checkBytes(MemoryAddress base, SequenceLayout layout,
111 BiFunction<MemoryAddress, Long, Object> handleExtractor,
112 Function<ByteBuffer, Z> bufferFactory,
113 BiFunction<Z, Integer, Object> nativeBufferExtractor,
114 BiFunction<Long, Integer, Object> nativeRawExtractor) {
115 long nelems = layout.elementCount().getAsLong();
116 ByteBuffer bb = base.segment().asSlice(base.offset(), (int)layout.byteSize()).asByteBuffer();
117 Z z = bufferFactory.apply(bb);
118 for (long i = 0 ; i < nelems ; i++) {
119 Object handleValue = handleExtractor.apply(base, i);
120 Object bufferValue = nativeBufferExtractor.apply(z, (int)i);
121 Object rawValue = nativeRawExtractor.apply(ForeignUnsafe.getUnsafeOffset(base), (int)i);
122 if (handleValue instanceof Number) {
123 assertEquals(((Number)handleValue).longValue(), i);
124 assertEquals(((Number)bufferValue).longValue(), i);
125 assertEquals(((Number)rawValue).longValue(), i);
126 } else {
127 assertEquals((long)(char)handleValue, i);
128 assertEquals((long)(char)bufferValue, i);
129 assertEquals((long)(char)rawValue, i);
130 }
131 }
132 }
133
134 public static native byte getByteBuffer(ByteBuffer buf, int index);
135 public static native char getCharBuffer(CharBuffer buf, int index);
136 public static native short getShortBuffer(ShortBuffer buf, int index);
137 public static native int getIntBuffer(IntBuffer buf, int index);
138 public static native float getFloatBuffer(FloatBuffer buf, int index);
139 public static native long getLongBuffer(LongBuffer buf, int index);
140 public static native double getDoubleBuffer(DoubleBuffer buf, int index);
141
142 public static native byte getByteRaw(long addr, int index);
143 public static native char getCharRaw(long addr, int index);
144 public static native short getShortRaw(long addr, int index);
145 public static native int getIntRaw(long addr, int index);
146 public static native float getFloatRaw(long addr, int index);
147 public static native long getLongRaw(long addr, int index);
148 public static native double getDoubleRaw(long addr, int index);
149
150 public static native long getCapacity(Buffer buffer);
151
152 @Test(dataProvider="nativeAccessOps")
153 public void testNativeAccess(Consumer<MemoryAddress> checker, Consumer<MemoryAddress> initializer, SequenceLayout seq) {
154 try (MemorySegment segment = MemorySegment.allocateNative(seq)) {
155 MemoryAddress address = segment.baseAddress();
156 initializer.accept(address);
157 checker.accept(address);
158 }
159 }
160
161 @Test(dataProvider="buffers")
162 public void testNativeCapacity(Function<ByteBuffer, Buffer> bufferFunction, int elemSize) {
163 int capacity = (int)doubles.byteSize();
164 try (MemorySegment segment = MemorySegment.allocateNative(doubles)) {
165 ByteBuffer bb = segment.asByteBuffer();
166 Buffer buf = bufferFunction.apply(bb);
167 int expected = capacity / elemSize;
168 assertEquals(buf.capacity(), expected);
169 assertEquals(getCapacity(buf), expected);
170 }
171 }
172
173 static {
174 System.loadLibrary("NativeAccess");
175 }
176
177 @DataProvider(name = "nativeAccessOps")
178 public Object[][] nativeAccessOps() {
179 Consumer<MemoryAddress> byteInitializer =
180 (base) -> initBytes(base, bytes, (addr, pos) -> byteHandle.set(addr, pos, (byte)(long)pos));
181 Consumer<MemoryAddress> charInitializer =
182 (base) -> initBytes(base, chars, (addr, pos) -> charHandle.set(addr, pos, (char)(long)pos));
183 Consumer<MemoryAddress> shortInitializer =
184 (base) -> initBytes(base, shorts, (addr, pos) -> shortHandle.set(addr, pos, (short)(long)pos));
185 Consumer<MemoryAddress> intInitializer =
186 (base) -> initBytes(base, ints, (addr, pos) -> intHandle.set(addr, pos, (int)(long)pos));
187 Consumer<MemoryAddress> floatInitializer =
188 (base) -> initBytes(base, floats, (addr, pos) -> floatHandle.set(addr, pos, (float)(long)pos));
189 Consumer<MemoryAddress> longInitializer =
190 (base) -> initBytes(base, longs, (addr, pos) -> longHandle.set(addr, pos, (long)pos));
191 Consumer<MemoryAddress> doubleInitializer =
192 (base) -> initBytes(base, doubles, (addr, pos) -> doubleHandle.set(addr, pos, (double)(long)pos));
193
194 Consumer<MemoryAddress> byteChecker =
195 (base) -> checkBytes(base, bytes, byteHandle::get, bb -> bb, TestNative::getByteBuffer, TestNative::getByteRaw);
196 Consumer<MemoryAddress> charChecker =
197 (base) -> checkBytes(base, chars, charHandle::get, ByteBuffer::asCharBuffer, TestNative::getCharBuffer, TestNative::getCharRaw);
198 Consumer<MemoryAddress> shortChecker =
199 (base) -> checkBytes(base, shorts, shortHandle::get, ByteBuffer::asShortBuffer, TestNative::getShortBuffer, TestNative::getShortRaw);
200 Consumer<MemoryAddress> intChecker =
201 (base) -> checkBytes(base, ints, intHandle::get, ByteBuffer::asIntBuffer, TestNative::getIntBuffer, TestNative::getIntRaw);
202 Consumer<MemoryAddress> floatChecker =
203 (base) -> checkBytes(base, floats, floatHandle::get, ByteBuffer::asFloatBuffer, TestNative::getFloatBuffer, TestNative::getFloatRaw);
204 Consumer<MemoryAddress> longChecker =
205 (base) -> checkBytes(base, longs, longHandle::get, ByteBuffer::asLongBuffer, TestNative::getLongBuffer, TestNative::getLongRaw);
206 Consumer<MemoryAddress> doubleChecker =
207 (base) -> checkBytes(base, doubles, doubleHandle::get, ByteBuffer::asDoubleBuffer, TestNative::getDoubleBuffer, TestNative::getDoubleRaw);
208
209 return new Object[][]{
210 {byteChecker, byteInitializer, bytes},
211 {charChecker, charInitializer, chars},
212 {shortChecker, shortInitializer, shorts},
213 {intChecker, intInitializer, ints},
214 {floatChecker, floatInitializer, floats},
215 {longChecker, longInitializer, longs},
216 {doubleChecker, doubleInitializer, doubles}
217 };
218 }
219
220 @DataProvider(name = "buffers")
221 public Object[][] buffers() {
222 return new Object[][] {
223 { (Function<ByteBuffer, Buffer>)bb -> bb, 1 },
224 { (Function<ByteBuffer, Buffer>)ByteBuffer::asCharBuffer, 2 },
225 { (Function<ByteBuffer, Buffer>)ByteBuffer::asShortBuffer, 2 },
226 { (Function<ByteBuffer, Buffer>)ByteBuffer::asIntBuffer, 4 },
227 { (Function<ByteBuffer, Buffer>)ByteBuffer::asFloatBuffer, 4 },
228 { (Function<ByteBuffer, Buffer>)ByteBuffer::asLongBuffer, 8 },
229 { (Function<ByteBuffer, Buffer>)ByteBuffer::asDoubleBuffer, 8 },
230 };
231 }
232 }