/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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*
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* version 2 for more details (a copy is included in the LICENSE file that
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*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/*
* @test
* @run testng/othervm TestSegmentAllocators
*/
import jdk.incubator.foreign.*;
import org.testng.annotations.*;
import java.lang.invoke.VarHandle;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.DoubleBuffer;
import java.nio.FloatBuffer;
import java.nio.IntBuffer;
import java.nio.LongBuffer;
import java.nio.ShortBuffer;
import java.util.ArrayList;
import java.util.List;
import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.stream.IntStream;
import java.util.stream.LongStream;
import static org.testng.Assert.*;
public class TestSegmentAllocators {
final static int ELEMS = 128;
final static Class<?> ADDRESS_CARRIER = MemoryLayouts.ADDRESS.bitSize() == 64 ? long.class : int.class;
@Test(dataProvider = "nativeScopes")
public <Z> void testAllocation(Z value, AllocationFactory allocationFactory, ValueLayout layout, AllocationFunction<Z> allocationFunction, Function<MemoryLayout, VarHandle> handleFactory) {
ValueLayout[] layouts = {
layout,
layout.withBitAlignment(layout.bitAlignment() * 2),
layout.withBitAlignment(layout.bitAlignment() * 4),
layout.withBitAlignment(layout.bitAlignment() * 8)
};
for (ValueLayout alignedLayout : layouts) {
List<MemorySegment> addressList = new ArrayList<>();
int elems = ELEMS / ((int)alignedLayout.byteAlignment() / (int)layout.byteAlignment());
ResourceScope[] scopes = {
ResourceScope.newConfinedScope(),
ResourceScope.newSharedScope()
};
for (ResourceScope scope : scopes) {
try (scope) {
SegmentAllocator allocator = allocationFactory.allocator(alignedLayout.byteSize() * ELEMS, scope);
for (int i = 0; i < elems; i++) {
MemorySegment address = allocationFunction.allocate(allocator, alignedLayout, value);
assertEquals(address.byteSize(), alignedLayout.byteSize());
addressList.add(address);
VarHandle handle = handleFactory.apply(alignedLayout);
assertEquals(value, handle.get(address));
}
boolean isBound = allocationFactory.isBound();
try {
allocationFunction.allocate(allocator, alignedLayout, value); //too much, should fail if bound
assertFalse(isBound);
} catch (OutOfMemoryError ex) {
//failure is expected if bound
assertTrue(isBound);
}
}
// addresses should be invalid now
for (MemorySegment address : addressList) {
assertFalse(address.scope().isAlive());
}
}
}
}
static final int SIZE_256M = 1024 * 1024 * 256;
@Test
public void testBigAllocationInUnboundedScope() {
try (ResourceScope scope = ResourceScope.newConfinedScope()) {
SegmentAllocator allocator = SegmentAllocator.arenaAllocator(scope);
for (int i = 8 ; i < SIZE_256M ; i *= 8) {
MemorySegment address = allocator.allocate(i, i);
//check size
assertEquals(address.byteSize(), i);
//check alignment
assertEquals(address.address().toRawLongValue() % i, 0);
}
}
}
@Test(expectedExceptions = OutOfMemoryError.class)
public void testTooBigForBoundedArena() {
try (ResourceScope scope = ResourceScope.newConfinedScope()) {
SegmentAllocator allocator = SegmentAllocator.arenaAllocator(10, scope);
allocator.allocate(12);
}
}
@Test
public void testBiggerThanBlockForBoundedArena() {
try (ResourceScope scope = ResourceScope.newConfinedScope()) {
SegmentAllocator allocator = SegmentAllocator.arenaAllocator(4 * 1024 * 2, scope);
allocator.allocate(4 * 1024 + 1); // should be ok
}
}
@Test(dataProvider = "arrayScopes")
public <Z> void testArray(AllocationFactory allocationFactory, ValueLayout layout, AllocationFunction<Object> allocationFunction, ToArrayHelper<Z> arrayHelper) {
Z arr = arrayHelper.array();
ResourceScope[] scopes = {
ResourceScope.newConfinedScope(),
ResourceScope.newSharedScope()
};
for (ResourceScope scope : scopes) {
try (scope) {
SegmentAllocator allocator = allocationFactory.allocator(100, scope);
MemorySegment address = allocationFunction.allocate(allocator, layout, arr);
Z found = arrayHelper.toArray(address, layout);
assertEquals(found, arr);
}
}
}
@DataProvider(name = "nativeScopes")
static Object[][] nativeScopes() {
return new Object[][] {
{ (byte)42, AllocationFactory.BOUNDED, MemoryLayouts.BITS_8_BE,
(AllocationFunction<Byte>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(byte.class) },
{ (short)42, AllocationFactory.BOUNDED, MemoryLayouts.BITS_16_BE,
(AllocationFunction<Short>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(short.class) },
{ (char)42, AllocationFactory.BOUNDED, MemoryLayouts.BITS_16_BE,
(AllocationFunction<Character>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(char.class) },
{ 42, AllocationFactory.BOUNDED,
MemoryLayouts.BITS_32_BE,
(AllocationFunction<Integer>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(int.class) },
{ 42f, AllocationFactory.BOUNDED, MemoryLayouts.BITS_32_BE,
(AllocationFunction<Float>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(float.class) },
{ 42L, AllocationFactory.BOUNDED, MemoryLayouts.BITS_64_BE,
(AllocationFunction<Long>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(long.class) },
{ 42d, AllocationFactory.BOUNDED, MemoryLayouts.BITS_64_BE,
(AllocationFunction<Double>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(double.class) },
{ MemoryAddress.ofLong(42), AllocationFactory.BOUNDED, MemoryLayouts.ADDRESS.withOrder(ByteOrder.BIG_ENDIAN),
(AllocationFunction<MemoryAddress>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> MemoryHandles.asAddressVarHandle(l.varHandle(ADDRESS_CARRIER)) },
{ (byte)42, AllocationFactory.BOUNDED, MemoryLayouts.BITS_8_LE,
(AllocationFunction<Byte>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(byte.class) },
{ (short)42, AllocationFactory.BOUNDED, MemoryLayouts.BITS_16_LE,
(AllocationFunction<Short>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(short.class) },
{ (char)42, AllocationFactory.BOUNDED, MemoryLayouts.BITS_16_LE,
(AllocationFunction<Character>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(char.class) },
{ 42, AllocationFactory.BOUNDED,
MemoryLayouts.BITS_32_LE,
(AllocationFunction<Integer>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(int.class) },
{ 42f, AllocationFactory.BOUNDED, MemoryLayouts.BITS_32_LE,
(AllocationFunction<Float>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(float.class) },
{ 42L, AllocationFactory.BOUNDED, MemoryLayouts.BITS_64_LE,
(AllocationFunction<Long>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(long.class) },
{ 42d, AllocationFactory.BOUNDED, MemoryLayouts.BITS_64_LE,
(AllocationFunction<Double>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(double.class) },
{ MemoryAddress.ofLong(42), AllocationFactory.BOUNDED, MemoryLayouts.ADDRESS.withOrder(ByteOrder.LITTLE_ENDIAN),
(AllocationFunction<MemoryAddress>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> MemoryHandles.asAddressVarHandle(l.varHandle(ADDRESS_CARRIER)) },
{ (byte)42, AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_8_BE,
(AllocationFunction<Byte>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(byte.class) },
{ (short)42, AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_16_BE,
(AllocationFunction<Short>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(short.class) },
{ (char)42, AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_16_BE,
(AllocationFunction<Character>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(char.class) },
{ 42, AllocationFactory.UNBOUNDED,
MemoryLayouts.BITS_32_BE,
(AllocationFunction<Integer>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(int.class) },
{ 42f, AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_32_BE,
(AllocationFunction<Float>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(float.class) },
{ 42L, AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_64_BE,
(AllocationFunction<Long>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(long.class) },
{ 42d, AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_64_BE,
(AllocationFunction<Double>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(double.class) },
{ MemoryAddress.ofLong(42), AllocationFactory.UNBOUNDED, MemoryLayouts.ADDRESS.withOrder(ByteOrder.BIG_ENDIAN),
(AllocationFunction<MemoryAddress>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> MemoryHandles.asAddressVarHandle(l.varHandle(ADDRESS_CARRIER)) },
{ (byte)42, AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_8_LE,
(AllocationFunction<Byte>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(byte.class) },
{ (short)42, AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_16_LE,
(AllocationFunction<Short>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(short.class) },
{ (char)42, AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_16_LE,
(AllocationFunction<Character>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(char.class) },
{ 42, AllocationFactory.UNBOUNDED,
MemoryLayouts.BITS_32_LE,
(AllocationFunction<Integer>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(int.class) },
{ 42f, AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_32_LE,
(AllocationFunction<Float>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(float.class) },
{ 42L, AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_64_LE,
(AllocationFunction<Long>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(long.class) },
{ 42d, AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_64_LE,
(AllocationFunction<Double>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> l.varHandle(double.class) },
{ MemoryAddress.ofLong(42), AllocationFactory.UNBOUNDED, MemoryLayouts.ADDRESS.withOrder(ByteOrder.LITTLE_ENDIAN),
(AllocationFunction<MemoryAddress>) SegmentAllocator::allocate,
(Function<MemoryLayout, VarHandle>)l -> MemoryHandles.asAddressVarHandle(l.varHandle(ADDRESS_CARRIER)) },
};
}
@DataProvider(name = "arrayScopes")
static Object[][] arrayScopes() {
return new Object[][] {
{ AllocationFactory.BOUNDED, MemoryLayouts.BITS_8_LE,
(AllocationFunction<byte[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toByteArray },
{ AllocationFactory.BOUNDED, MemoryLayouts.BITS_16_LE,
(AllocationFunction<short[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toShortArray },
{ AllocationFactory.BOUNDED,
MemoryLayouts.BITS_32_LE,
(AllocationFunction<int[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toIntArray },
{ AllocationFactory.BOUNDED, MemoryLayouts.BITS_32_LE,
(AllocationFunction<float[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toFloatArray },
{ AllocationFactory.BOUNDED, MemoryLayouts.BITS_64_LE,
(AllocationFunction<long[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toLongArray },
{ AllocationFactory.BOUNDED, MemoryLayouts.BITS_64_LE,
(AllocationFunction<double[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toDoubleArray },
{ AllocationFactory.BOUNDED, MemoryLayouts.ADDRESS.withOrder(ByteOrder.LITTLE_ENDIAN),
(AllocationFunction<MemoryAddress[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toAddressArray },
{ AllocationFactory.BOUNDED, MemoryLayouts.BITS_8_BE,
(AllocationFunction<byte[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toByteArray },
{ AllocationFactory.BOUNDED, MemoryLayouts.BITS_16_BE,
(AllocationFunction<short[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toShortArray },
{ AllocationFactory.BOUNDED,
MemoryLayouts.BITS_32_BE,
(AllocationFunction<int[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toIntArray },
{ AllocationFactory.BOUNDED, MemoryLayouts.BITS_32_BE,
(AllocationFunction<float[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toFloatArray },
{ AllocationFactory.BOUNDED, MemoryLayouts.BITS_64_BE,
(AllocationFunction<long[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toLongArray },
{ AllocationFactory.BOUNDED, MemoryLayouts.BITS_64_BE,
(AllocationFunction<double[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toDoubleArray },
{ AllocationFactory.BOUNDED, MemoryLayouts.ADDRESS.withOrder(ByteOrder.BIG_ENDIAN),
(AllocationFunction<MemoryAddress[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toAddressArray },
{ AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_8_LE,
(AllocationFunction<byte[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toByteArray },
{ AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_16_LE,
(AllocationFunction<short[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toShortArray },
{ AllocationFactory.UNBOUNDED,
MemoryLayouts.BITS_32_LE,
(AllocationFunction<int[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toIntArray },
{ AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_32_LE,
(AllocationFunction<float[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toFloatArray },
{ AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_64_LE,
(AllocationFunction<long[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toLongArray },
{ AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_64_LE,
(AllocationFunction<double[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toDoubleArray },
{ AllocationFactory.UNBOUNDED, MemoryLayouts.ADDRESS.withOrder(ByteOrder.LITTLE_ENDIAN),
(AllocationFunction<MemoryAddress[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toAddressArray },
{ AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_8_BE,
(AllocationFunction<byte[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toByteArray },
{ AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_16_BE,
(AllocationFunction<short[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toShortArray },
{ AllocationFactory.UNBOUNDED,
MemoryLayouts.BITS_32_BE,
(AllocationFunction<int[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toIntArray },
{ AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_32_BE,
(AllocationFunction<float[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toFloatArray },
{ AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_64_BE,
(AllocationFunction<long[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toLongArray },
{ AllocationFactory.UNBOUNDED, MemoryLayouts.BITS_64_BE,
(AllocationFunction<double[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toDoubleArray },
{ AllocationFactory.UNBOUNDED, MemoryLayouts.ADDRESS.withOrder(ByteOrder.BIG_ENDIAN),
(AllocationFunction<MemoryAddress[]>) SegmentAllocator::allocateArray,
ToArrayHelper.toAddressArray },
};
}
interface AllocationFunction<X> {
MemorySegment allocate(SegmentAllocator allocator, ValueLayout layout, X value);
}
static class AllocationFactory {
private final boolean isBound;
private final BiFunction<Long, ResourceScope, SegmentAllocator> factory;
private AllocationFactory(boolean isBound, BiFunction<Long, ResourceScope, SegmentAllocator> factory) {
this.isBound = isBound;
this.factory = factory;
}
SegmentAllocator allocator(long size, ResourceScope scope) {
return factory.apply(size, scope);
}
public boolean isBound() {
return isBound;
}
static AllocationFactory BOUNDED = new AllocationFactory(true, SegmentAllocator::arenaAllocator);
static AllocationFactory UNBOUNDED = new AllocationFactory(false, (size, scope) -> SegmentAllocator.arenaAllocator(scope));
}
interface ToArrayHelper<T> {
T array();
T toArray(MemorySegment segment, ValueLayout layout);
ToArrayHelper<byte[]> toByteArray = new ToArrayHelper<>() {
@Override
public byte[] array() {
return new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
}
@Override
public byte[] toArray(MemorySegment segment, ValueLayout layout) {
ByteBuffer buffer = segment.asByteBuffer().order(layout.order());
byte[] found = new byte[buffer.limit()];
buffer.get(found);
return found;
}
};
ToArrayHelper<short[]> toShortArray = new ToArrayHelper<>() {
@Override
public short[] array() {
return new short[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
}
@Override
public short[] toArray(MemorySegment segment, ValueLayout layout) {
ShortBuffer buffer = segment.asByteBuffer().order(layout.order()).asShortBuffer();
short[] found = new short[buffer.limit()];
buffer.get(found);
return found;
}
};
ToArrayHelper<int[]> toIntArray = new ToArrayHelper<>() {
@Override
public int[] array() {
return new int[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
}
@Override
public int[] toArray(MemorySegment segment, ValueLayout layout) {
IntBuffer buffer = segment.asByteBuffer().order(layout.order()).asIntBuffer();
int[] found = new int[buffer.limit()];
buffer.get(found);
return found;
}
};
ToArrayHelper<float[]> toFloatArray = new ToArrayHelper<>() {
@Override
public float[] array() {
return new float[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
}
@Override
public float[] toArray(MemorySegment segment, ValueLayout layout) {
FloatBuffer buffer = segment.asByteBuffer().order(layout.order()).asFloatBuffer();
float[] found = new float[buffer.limit()];
buffer.get(found);
return found;
}
};
ToArrayHelper<long[]> toLongArray = new ToArrayHelper<>() {
@Override
public long[] array() {
return new long[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
}
@Override
public long[] toArray(MemorySegment segment, ValueLayout layout) {
LongBuffer buffer = segment.asByteBuffer().order(layout.order()).asLongBuffer();
long[] found = new long[buffer.limit()];
buffer.get(found);
return found;
}
};
ToArrayHelper<double[]> toDoubleArray = new ToArrayHelper<>() {
@Override
public double[] array() {
return new double[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
}
@Override
public double[] toArray(MemorySegment segment, ValueLayout layout) {
DoubleBuffer buffer = segment.asByteBuffer().order(layout.order()).asDoubleBuffer();
double[] found = new double[buffer.limit()];
buffer.get(found);
return found;
}
};
ToArrayHelper<MemoryAddress[]> toAddressArray = new ToArrayHelper<>() {
@Override
public MemoryAddress[] array() {
return switch ((int)MemoryLayouts.ADDRESS.byteSize()) {
case 4 -> wrap(toIntArray.array());
case 8 -> wrap(toLongArray.array());
default -> throw new IllegalStateException("Cannot get here");
};
}
@Override
public MemoryAddress[] toArray(MemorySegment segment, ValueLayout layout) {
return switch ((int)layout.byteSize()) {
case 4 -> wrap(toIntArray.toArray(segment, layout));
case 8 -> wrap(toLongArray.toArray(segment, layout));
default -> throw new IllegalStateException("Cannot get here");
};
}
private MemoryAddress[] wrap(int[] ints) {
return IntStream.of(ints).mapToObj(MemoryAddress::ofLong).toArray(MemoryAddress[]::new);
}
private MemoryAddress[] wrap(long[] ints) {
return LongStream.of(ints).mapToObj(MemoryAddress::ofLong).toArray(MemoryAddress[]::new);
}
};
}
}