GH-43902: [Java] Support for Long memory addresses

java/memory/memory-core/src/main/java/org/apache/arrow/memory/AllocationReservation.java

@@ -34,19 +34,44 @@ public interface AllocationReservation extends AutoCloseable {
    * @param nBytes the number of bytes to add
    * @return true if the addition is possible, false otherwise
    * @throws IllegalStateException if called after buffer() is used to allocate the reservation
+   * @deprecated use {@link #add(long)} instead
    */
+  @Deprecated(forRemoval = true)
   boolean add(int nBytes);
 
+  /**
+   * Add to the current reservation.
+   *
+   * <p>Adding may fail if the allocator is not allowed to consume any more space.
+   *
+   * @param nBytes the number of bytes to add
+   * @return true if the addition is possible, false otherwise
+   * @throws IllegalStateException if called after buffer() is used to allocate the reservation
+   */
+  boolean add(long nBytes);
+
   /**
    * Requests a reservation of additional space.
    *
    * <p>The implementation of the allocator's inner class provides this.
    *
    * @param nBytes the amount to reserve
    * @return true if the reservation can be satisfied, false otherwise
+   * @deprecated use {@link #reserve(long)} instead
    */
+  @Deprecated(forRemoval = true)
   boolean reserve(int nBytes);
 
+  /**
+   * Requests a reservation of additional space.
+   *
+   * <p>The implementation of the allocator's inner class provides this.
+   *
+   * @param nBytes the amount to reserve
+   * @return true if the reservation can be satisfied, false otherwise
+   */
+  boolean reserve(long nBytes);
+
   /**
    * Allocate a buffer whose size is the total of all the add()s made.
    *

java/memory/memory-core/src/main/java/org/apache/arrow/memory/BaseAllocator.java

@@ -29,6 +29,7 @@
 import org.apache.arrow.memory.util.AssertionUtil;
 import org.apache.arrow.memory.util.CommonUtil;
 import org.apache.arrow.memory.util.HistoricalLog;
+import org.apache.arrow.memory.util.LargeMemoryUtil;
 import org.apache.arrow.util.Preconditions;
 import org.checkerframework.checker.initialization.qual.Initialized;
 import org.checkerframework.checker.nullness.qual.KeyFor;
@@ -860,7 +861,7 @@ RoundingPolicy getRoundingPolicy() {
   public class Reservation implements AllocationReservation {
 
     private final @Nullable HistoricalLog historicalLog;
-    private int nBytes = 0;
+    private long nBytes = 0;
     private boolean used = false;
     private boolean closed = false;
 
@@ -888,8 +889,14 @@ public Reservation() {
       }
     }
 
+    @Deprecated(forRemoval = true)
     @Override
     public boolean add(final int nBytes) {
+      return add((long) nBytes);
+    }
+
+    @Override
+    public boolean add(final long nBytes) {
       assertOpen();
 
       Preconditions.checkArgument(nBytes >= 0, "nBytes(%d) < 0", nBytes);
@@ -906,7 +913,7 @@ public boolean add(final int nBytes) {
       // modifying this behavior so that we maintain what we reserve and what the user asked for
       // and make sure to only
       // round to power of two as necessary.
-      final int nBytesTwo = CommonUtil.nextPowerOfTwo(nBytes);
+      final long nBytesTwo = CommonUtil.nextPowerOfTwo(nBytes);
       if (!reserve(nBytesTwo)) {
         return false;
       }
@@ -929,7 +936,7 @@ public ArrowBuf allocateBuffer() {
 
     @Override
     public int getSize() {
-      return nBytes;
+      return LargeMemoryUtil.checkedCastToInt(nBytes);
     }
 
     @Override
@@ -978,8 +985,14 @@ public void close() {
       closed = true;
     }
 
+    @Deprecated(forRemoval = true)
     @Override
     public boolean reserve(int nBytes) {
+      return reserve((long) nBytes);
+    }
+
+    @Override
+    public boolean reserve(long nBytes) {
       assertOpen();
 
       final AllocationOutcome outcome = BaseAllocator.this.allocateBytes(nBytes);
@@ -999,7 +1012,7 @@ public boolean reserve(int nBytes) {
      * @param nBytes the size of the buffer requested
      * @return the buffer, or null, if the request cannot be satisfied
      */
-    private ArrowBuf allocate(int nBytes) {
+    private ArrowBuf allocate(long nBytes) {
       assertOpen();
 
       boolean success = false;
@@ -1033,7 +1046,7 @@ private ArrowBuf allocate(int nBytes) {
      *
      * @param nBytes the size of the reservation
      */
-    private void releaseReservation(int nBytes) {
+    private void releaseReservation(long nBytes) {
       assertOpen();
 
       releaseBytes(nBytes);

java/memory/memory-core/src/main/java/org/apache/arrow/memory/rounding/DefaultRoundingPolicy.java

@@ -34,13 +34,13 @@ public class DefaultRoundingPolicy implements RoundingPolicy {
    *
    * <p>It was copied from {@link io.netty.buffer.PooledByteBufAllocator}.
    */
-  private static final int MIN_PAGE_SIZE = 4096;
+  private static final long MIN_PAGE_SIZE = 4096;
 
-  private static final int MAX_CHUNK_SIZE = (int) (((long) Integer.MAX_VALUE + 1) / 2);
+  private static final long MAX_CHUNK_SIZE = Long.MAX_VALUE / 2;
   private static final long DEFAULT_CHUNK_SIZE;
 
   static {
-    int defaultPageSize = Integer.getInteger("org.apache.memory.allocator.pageSize", 8192);
+    long defaultPageSize = Long.getLong("org.apache.memory.allocator.pageSize", 8192);
     try {
       validateAndCalculatePageShifts(defaultPageSize);
     } catch (Throwable t) {
@@ -60,7 +60,7 @@ public class DefaultRoundingPolicy implements RoundingPolicy {
     }
   }
 
-  private static int validateAndCalculatePageShifts(int pageSize) {
+  private static long validateAndCalculatePageShifts(long pageSize) {
     if (pageSize < MIN_PAGE_SIZE) {
       throw new IllegalArgumentException(
           "pageSize: " + pageSize + " (expected: " + MIN_PAGE_SIZE + ")");
@@ -71,17 +71,17 @@ private static int validateAndCalculatePageShifts(int pageSize) {
     }
 
     // Logarithm base 2. At this point we know that pageSize is a power of two.
-    return Integer.SIZE - 1 - Integer.numberOfLeadingZeros(pageSize);
+    return Long.SIZE - 1 - Long.numberOfLeadingZeros(pageSize);
   }
 
-  private static int validateAndCalculateChunkSize(int pageSize, int maxOrder) {
+  private static long validateAndCalculateChunkSize(long pageSize, int maxOrder) {
     if (maxOrder > 14) {
       throw new IllegalArgumentException("maxOrder: " + maxOrder + " (expected: 0-14)");
     }
 
     // Ensure the resulting chunkSize does not overflow.
-    int chunkSize = pageSize;
-    for (int i = maxOrder; i > 0; i--) {
+    long chunkSize = pageSize;
+    for (long i = maxOrder; i > 0; i--) {
       if (chunkSize > MAX_CHUNK_SIZE / 2) {
         throw new IllegalArgumentException(
             String.format(

java/memory/memory-core/src/main/java/org/apache/arrow/memory/rounding/SegmentRoundingPolicy.java

@@ -16,6 +16,7 @@
  */
 package org.apache.arrow.memory.rounding;
 
+import org.apache.arrow.memory.util.LargeMemoryUtil;
 import org.apache.arrow.util.Preconditions;
 
 /** The rounding policy that each buffer size must a multiple of the segment size. */
@@ -28,16 +29,29 @@ public class SegmentRoundingPolicy implements RoundingPolicy {
    * The segment size. It must be at least {@link SegmentRoundingPolicy#MIN_SEGMENT_SIZE}, and be a
    * power of 2.
    */
-  private int segmentSize;
+  private long segmentSize;
 
   /**
    * Constructor for the segment rounding policy.
    *
    * @param segmentSize the segment size.
    * @throws IllegalArgumentException if the segment size is smaller than {@link
    *     SegmentRoundingPolicy#MIN_SEGMENT_SIZE}, or is not a power of 2.
+   * @deprecated use {@link SegmentRoundingPolicy#SegmentRoundingPolicy(long)} instead.
    */
+  @Deprecated(forRemoval = true)
   public SegmentRoundingPolicy(int segmentSize) {
+    this((long) segmentSize);
+  }
+
+  /**
+   * Constructor for the segment rounding policy.
+   *
+   * @param segmentSize the segment size.
+   * @throws IllegalArgumentException if the segment size is smaller than {@link
+   *     SegmentRoundingPolicy#MIN_SEGMENT_SIZE}, or is not a power of 2.
+   */
+  public SegmentRoundingPolicy(long segmentSize) {
     Preconditions.checkArgument(
         segmentSize >= MIN_SEGMENT_SIZE,
         "The segment size cannot be smaller than %s",
@@ -53,6 +67,10 @@ public long getRoundedSize(long requestSize) {
   }
 
   public int getSegmentSize() {
+    return LargeMemoryUtil.checkedCastToInt(segmentSize);
+  }
+
+  public long getSegmentSizeAsLong() {
     return segmentSize;
   }
 }

java/memory/memory-core/src/test/java/org/apache/arrow/memory/TestBaseAllocator.java

@@ -315,7 +315,7 @@ public void testRootAllocator_createChildDontClose() throws Exception {
 
   @Test
   public void testSegmentAllocator() {
-    RoundingPolicy policy = new SegmentRoundingPolicy(1024);
+    RoundingPolicy policy = new SegmentRoundingPolicy(1024L);
     try (RootAllocator allocator =
         new RootAllocator(AllocationListener.NOOP, 1024 * 1024, policy)) {
       ArrowBuf buf = allocator.buffer(798);
@@ -334,7 +334,7 @@ public void testSegmentAllocator() {
 
   @Test
   public void testSegmentAllocator_childAllocator() {
-    RoundingPolicy policy = new SegmentRoundingPolicy(1024);
+    RoundingPolicy policy = new SegmentRoundingPolicy(1024L);
     try (RootAllocator allocator = new RootAllocator(AllocationListener.NOOP, 1024 * 1024, policy);
         BufferAllocator childAllocator = allocator.newChildAllocator("child", 0, 512 * 1024)) {
 
@@ -357,14 +357,14 @@ public void testSegmentAllocator_childAllocator() {
   @Test
   public void testSegmentAllocator_smallSegment() {
     IllegalArgumentException e =
-        assertThrows(IllegalArgumentException.class, () -> new SegmentRoundingPolicy(128));
+        assertThrows(IllegalArgumentException.class, () -> new SegmentRoundingPolicy(128L));
     assertEquals("The segment size cannot be smaller than 1024", e.getMessage());
   }
 
   @Test
   public void testSegmentAllocator_segmentSizeNotPowerOf2() {
     IllegalArgumentException e =
-        assertThrows(IllegalArgumentException.class, () -> new SegmentRoundingPolicy(4097));
+        assertThrows(IllegalArgumentException.class, () -> new SegmentRoundingPolicy(4097L));
     assertEquals("The segment size must be a power of 2", e.getMessage());
   }
 
@@ -957,7 +957,7 @@ public void testAllocator_unclaimedReservation() throws Exception {
       try (final BufferAllocator childAllocator1 =
           rootAllocator.newChildAllocator("unclaimedReservation", 0, MAX_ALLOCATION)) {
         try (final AllocationReservation reservation = childAllocator1.newReservation()) {
-          assertTrue(reservation.add(64));
+          assertTrue(reservation.add(64L));
         }
         rootAllocator.verify();
       }
@@ -972,8 +972,8 @@ public void testAllocator_claimedReservation() throws Exception {
           rootAllocator.newChildAllocator("claimedReservation", 0, MAX_ALLOCATION)) {
 
         try (final AllocationReservation reservation = childAllocator1.newReservation()) {
-          assertTrue(reservation.add(32));
-          assertTrue(reservation.add(32));
+          assertTrue(reservation.add(32L));
+          assertTrue(reservation.add(32L));
 
           final ArrowBuf arrowBuf = reservation.allocateBuffer();
           assertEquals(64, arrowBuf.capacity());

java/memory/memory-netty-buffer-patch/src/main/java/io/netty/buffer/NettyArrowBuf.java

@@ -38,7 +38,7 @@ public class NettyArrowBuf extends AbstractByteBuf implements AutoCloseable {
 
   private final ArrowBuf arrowBuf;
   private final ArrowByteBufAllocator arrowByteBufAllocator;
-  private int length;
+  private long length;
   private final long address;
 
   /**
@@ -47,10 +47,24 @@ public class NettyArrowBuf extends AbstractByteBuf implements AutoCloseable {
    * @param arrowBuf The buffer to wrap.
    * @param bufferAllocator The allocator for the buffer.
    * @param length The length of this buffer.
+   * @deprecated Use {@link #NettyArrowBuf(ArrowBuf, BufferAllocator, long)} instead.
    */
+  @Deprecated(forRemoval = true)
   public NettyArrowBuf(
       final ArrowBuf arrowBuf, final BufferAllocator bufferAllocator, final int length) {
-    super(length);
+    this(arrowBuf, bufferAllocator, (long) length);
+  }
+
+  /**
+   * Constructs a new instance.
+   *
+   * @param arrowBuf The buffer to wrap.
+   * @param bufferAllocator The allocator for the buffer.
+   * @param length The length of this buffer.
+   */
+  public NettyArrowBuf(
+      final ArrowBuf arrowBuf, final BufferAllocator bufferAllocator, final long length) {
+    super((int) length);
     this.arrowBuf = arrowBuf;
     this.arrowByteBufAllocator = new ArrowByteBufAllocator(bufferAllocator);
     this.length = length;

java/performance/src/main/java/org/apache/arrow/memory/AllocatorBenchmarks.java

@@ -57,9 +57,9 @@ public void defaultAllocatorBenchmark() {
   @BenchmarkMode(Mode.AverageTime)
   @OutputTimeUnit(TimeUnit.MICROSECONDS)
   public void segmentRoundingPolicyBenchmark() {
-    final int bufferSize = 1024;
+    final long bufferSize = 1024L;
     final int numBuffers = 1024;
-    final int segmentSize = 1024;
+    final long segmentSize = 1024L;
 
     RoundingPolicy policy = new SegmentRoundingPolicy(segmentSize);
     try (RootAllocator allocator =