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/*
* Copyright (c) 2021, 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.io.IOException;
import java.lang.foreign.Arena;
import java.lang.foreign.MemorySegment;
import java.nio.ByteBuffer;
import java.util.Arrays;
import java.util.Random;
import java.util.concurrent.ExecutionException;
import java.util.function.Supplier;
import java.util.stream.Stream;
import jdk.test.lib.RandomFactory;
import org.testng.annotations.*;
import static java.lang.foreign.ValueLayout.JAVA_BYTE;
import static org.testng.Assert.*;
/**
* Not a test, but infra for channel tests.
*/
public class AbstractChannelsTest {
static final Class<IOException> IOE = IOException.class;
static final Class<ExecutionException> EE = ExecutionException.class;
static final Class<IllegalStateException> ISE = IllegalStateException.class;
@FunctionalInterface
interface ThrowingConsumer<T, X extends Throwable> {
void accept(T action) throws X;
}
static long remaining(ByteBuffer[] buffers) {
return Arrays.stream(buffers).mapToLong(ByteBuffer::remaining).sum();
}
static ByteBuffer[] flip(ByteBuffer[] buffers) {
Arrays.stream(buffers).forEach(ByteBuffer::flip);
return buffers;
}
static ByteBuffer[] clear(ByteBuffer[] buffers) {
Arrays.stream(buffers).forEach(ByteBuffer::clear);
return buffers;
}
static final Random RANDOM = RandomFactory.getRandom();
static ByteBuffer segmentBufferOfSize(Arena session, int size) {
var segment = session.allocate(size, 1);
for (int i = 0; i < size; i++) {
segment.set(JAVA_BYTE, i, ((byte)RANDOM.nextInt()));
}
return segment.asByteBuffer();
}
static ByteBuffer[] segmentBuffersOfSize(int len, Arena session, int size) {
ByteBuffer[] bufs = new ByteBuffer[len];
for (int i = 0; i < len; i++)
bufs[i] = segmentBufferOfSize(session, size);
return bufs;
}
/**
* Returns an array of mixed source byte buffers; both heap and direct,
* where heap can be from the global session or session-less, and direct are
* associated with the given session.
*/
static ByteBuffer[] mixedBuffersOfSize(int len, Arena session, int size) {
ByteBuffer[] bufs;
boolean atLeastOneSessionBuffer = false;
do {
bufs = new ByteBuffer[len];
for (int i = 0; i < len; i++) {
bufs[i] = switch (RANDOM.nextInt(3)) {
case 0 -> { byte[] b = new byte[size];
RANDOM.nextBytes(b);
yield ByteBuffer.wrap(b); }
case 1 -> { byte[] b = new byte[size];
RANDOM.nextBytes(b);
yield MemorySegment.ofArray(b).asByteBuffer(); }
case 2 -> { atLeastOneSessionBuffer = true;
yield segmentBufferOfSize(session, size); }
default -> throw new AssertionError("cannot happen");
};
}
} while (!atLeastOneSessionBuffer);
return bufs;
}
static void assertMessage(Exception ex, String msg) {
assertTrue(ex.getMessage().contains(msg), "Expected [%s], in: [%s]".formatted(msg, ex.getMessage()));
}
static void assertCauses(Throwable ex, Class<? extends Exception>... exceptions) {
for (var expectedClass : exceptions) {
ex = ex.getCause();
assertTrue(expectedClass.isInstance(ex), "Expected %s, got: %s".formatted(expectedClass, ex));
}
}
@DataProvider(name = "confinedArenas")
public static Object[][] confinedArenas() {
return new Object[][] {
{ ArenaSupplier.NEW_CONFINED },
};
}
@DataProvider(name = "sharedArenas")
public static Object[][] sharedArenas() {
return new Object[][] {
{ ArenaSupplier.NEW_SHARED },
};
}
@DataProvider(name = "closeableArenas")
public static Object[][] closeableArenas() {
return Stream.of(sharedArenas(), confinedArenas())
.flatMap(Arrays::stream)
.toArray(Object[][]::new);
}
@DataProvider(name = "sharedArenasAndTimeouts")
public static Object[][] sharedArenasAndTimeouts() {
return new Object[][] {
{ ArenaSupplier.NEW_SHARED , 0 },
{ ArenaSupplier.NEW_SHARED , 30 },
};
}
static class ArenaSupplier implements Supplier<Arena> {
static final Supplier<Arena> NEW_CONFINED =
new ArenaSupplier(Arena::ofConfined, "confined arena");
static final Supplier<Arena> NEW_SHARED =
new ArenaSupplier(Arena::ofShared, "shared arena");
private final Supplier<Arena> supplier;
private final String str;
private ArenaSupplier(Supplier<Arena> supplier, String str) {
this.supplier = supplier;
this.str = str;
}
@Override public String toString() { return str; }
@Override public Arena get() { return supplier.get(); }
}
}
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