https://cassandra.apache.org: The Apache Cassandra Project develops a highly scalable second-generation distributed database, bringing together Dynamo's fully distributed design and Bigtable's ColumnFamily-based data model.
  • Andres de la Peña
  • Avinash Lakshman
  • Aleksey Yeschenko
  • Aaron Morton
  • Ariel Weisberg
  • Blake Eggleston
  • Benedict Elliott Smith
  • Benjamin Lerer
  • Branimir Lambov
  • Brandon Williams
  • Carl Yeksigian
  • David Brosiusd
  • Dikang Gu
  • Eric Evans
  • Gary Dusbabek
  • Chris Goffinet
  • Alex Petrov
  • Laine Jaakko Olavi
  • T Jake Luciani
  • Jason Brown
  • Jonathan Ellis
  • Jake Farrell
  • Jeff Jirsa
  • Joel Knighton
  • Josh McKenzie
  • Johan Oskarsson
  • Jun Rao
  • Jay Zhuang
  • Sankalp Kohli
  • Marcus Eriksson
  • Michael Semb Wever
  • Mikhail Stepura
  • Michael Shuler
  • Paulo Motta
  • Prashant Malik
  • Robert Stupp
  • Peter Schuller
  • Sam Tunnicliffe
  • Sylvain Lebresne
  • Stefania Alborghetti
  • Tyler Hobbs
  • Vijay Parthasarathy
  • Pavel Yaskevich
  • Yuki Morishita
  • Nate McCall 
public class org.apache.cassandra.utils.memory.SlabAllocator extends org.apache.cassandra.utils.memory.MemtableBufferAllocator
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.cassandra.utils.memory.SlabAllocator
  super_class: org.apache.cassandra.utils.memory.MemtableBufferAllocator
{
  private static final org.slf4j.Logger logger;
    descriptor: Lorg/slf4j/Logger;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final int REGION_SIZE;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 1048576

  private static final int MAX_CLONED_SIZE;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 131072

  private static final java.util.concurrent.ConcurrentLinkedQueue<org.apache.cassandra.utils.memory.SlabAllocator$Region> RACE_ALLOCATED;
    descriptor: Ljava/util/concurrent/ConcurrentLinkedQueue;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    Signature: Ljava/util/concurrent/ConcurrentLinkedQueue<Lorg/apache/cassandra/utils/memory/SlabAllocator$Region;>;

  private final java.util.concurrent.atomic.AtomicReference<org.apache.cassandra.utils.memory.SlabAllocator$Region> currentRegion;
    descriptor: Ljava/util/concurrent/atomic/AtomicReference;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/concurrent/atomic/AtomicReference<Lorg/apache/cassandra/utils/memory/SlabAllocator$Region;>;

  private final java.util.concurrent.atomic.AtomicInteger regionCount;
    descriptor: Ljava/util/concurrent/atomic/AtomicInteger;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final java.util.concurrent.ConcurrentLinkedQueue<org.apache.cassandra.utils.memory.SlabAllocator$Region> offHeapRegions;
    descriptor: Ljava/util/concurrent/ConcurrentLinkedQueue;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/concurrent/ConcurrentLinkedQueue<Lorg/apache/cassandra/utils/memory/SlabAllocator$Region;>;

  private final java.util.concurrent.atomic.AtomicLong unslabbedSize;
    descriptor: Ljava/util/concurrent/atomic/AtomicLong;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final boolean allocateOnHeapOnly;
    descriptor: Z
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final org.apache.cassandra.utils.memory.EnsureOnHeap ensureOnHeap;
    descriptor: Lorg/apache/cassandra/utils/memory/EnsureOnHeap;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  static final boolean $assertionsDisabled;
    descriptor: Z
    flags: (0x1018) ACC_STATIC, ACC_FINAL, ACC_SYNTHETIC

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=2, locals=0, args_size=0
         0: .line 47
            ldc Lorg/apache/cassandra/utils/memory/SlabAllocator;
            invokevirtual java.lang.Class.desiredAssertionStatus:()Z
            ifne 1
            iconst_1
            goto 2
      StackMap locals:
      StackMap stack:
         1: iconst_0
      StackMap locals:
      StackMap stack: int
         2: putstatic org.apache.cassandra.utils.memory.SlabAllocator.$assertionsDisabled:Z
         3: .line 49
            ldc Lorg/apache/cassandra/utils/memory/SlabAllocator;
            invokestatic org.slf4j.LoggerFactory.getLogger:(Ljava/lang/Class;)Lorg/slf4j/Logger;
            putstatic org.apache.cassandra.utils.memory.SlabAllocator.logger:Lorg/slf4j/Logger;
         4: .line 55
            new java.util.concurrent.ConcurrentLinkedQueue
            dup
            invokespecial java.util.concurrent.ConcurrentLinkedQueue.<init>:()V
            putstatic org.apache.cassandra.utils.memory.SlabAllocator.RACE_ALLOCATED:Ljava/util/concurrent/ConcurrentLinkedQueue;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  void <init>(org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator, org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator, boolean);
    descriptor: (Lorg/apache/cassandra/utils/memory/MemtableAllocator$SubAllocator;Lorg/apache/cassandra/utils/memory/MemtableAllocator$SubAllocator;Z)V
    flags: (0x0000) 
    Code:
      stack=5, locals=4, args_size=4
        start local 0 // org.apache.cassandra.utils.memory.SlabAllocator this
        start local 1 // org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator onHeap
        start local 2 // org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator offHeap
        start local 3 // boolean allocateOnHeapOnly
         0: .line 68
            aload 0 /* this */
            aload 1 /* onHeap */
            aload 2 /* offHeap */
            invokespecial org.apache.cassandra.utils.memory.MemtableBufferAllocator.<init>:(Lorg/apache/cassandra/utils/memory/MemtableAllocator$SubAllocator;Lorg/apache/cassandra/utils/memory/MemtableAllocator$SubAllocator;)V
         1: .line 57
            aload 0 /* this */
            new java.util.concurrent.atomic.AtomicReference
            dup
            invokespecial java.util.concurrent.atomic.AtomicReference.<init>:()V
            putfield org.apache.cassandra.utils.memory.SlabAllocator.currentRegion:Ljava/util/concurrent/atomic/AtomicReference;
         2: .line 58
            aload 0 /* this */
            new java.util.concurrent.atomic.AtomicInteger
            dup
            iconst_0
            invokespecial java.util.concurrent.atomic.AtomicInteger.<init>:(I)V
            putfield org.apache.cassandra.utils.memory.SlabAllocator.regionCount:Ljava/util/concurrent/atomic/AtomicInteger;
         3: .line 61
            aload 0 /* this */
            new java.util.concurrent.ConcurrentLinkedQueue
            dup
            invokespecial java.util.concurrent.ConcurrentLinkedQueue.<init>:()V
            putfield org.apache.cassandra.utils.memory.SlabAllocator.offHeapRegions:Ljava/util/concurrent/ConcurrentLinkedQueue;
         4: .line 62
            aload 0 /* this */
            new java.util.concurrent.atomic.AtomicLong
            dup
            lconst_0
            invokespecial java.util.concurrent.atomic.AtomicLong.<init>:(J)V
            putfield org.apache.cassandra.utils.memory.SlabAllocator.unslabbedSize:Ljava/util/concurrent/atomic/AtomicLong;
         5: .line 69
            aload 0 /* this */
            iload 3 /* allocateOnHeapOnly */
            putfield org.apache.cassandra.utils.memory.SlabAllocator.allocateOnHeapOnly:Z
         6: .line 70
            aload 0 /* this */
            iload 3 /* allocateOnHeapOnly */
            ifeq 7
            new org.apache.cassandra.utils.memory.EnsureOnHeap$NoOp
            dup
            invokespecial org.apache.cassandra.utils.memory.EnsureOnHeap$NoOp.<init>:()V
            goto 8
      StackMap locals: org.apache.cassandra.utils.memory.SlabAllocator org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator int
      StackMap stack: org.apache.cassandra.utils.memory.SlabAllocator
         7: new org.apache.cassandra.utils.memory.EnsureOnHeap$CloneToHeap
            dup
            invokespecial org.apache.cassandra.utils.memory.EnsureOnHeap$CloneToHeap.<init>:()V
      StackMap locals: org.apache.cassandra.utils.memory.SlabAllocator org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator int
      StackMap stack: org.apache.cassandra.utils.memory.SlabAllocator org.apache.cassandra.utils.memory.EnsureOnHeap
         8: putfield org.apache.cassandra.utils.memory.SlabAllocator.ensureOnHeap:Lorg/apache/cassandra/utils/memory/EnsureOnHeap;
         9: .line 71
            return
        end local 3 // boolean allocateOnHeapOnly
        end local 2 // org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator offHeap
        end local 1 // org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator onHeap
        end local 0 // org.apache.cassandra.utils.memory.SlabAllocator this
      LocalVariableTable:
        Start  End  Slot                Name  Signature
            0   10     0                this  Lorg/apache/cassandra/utils/memory/SlabAllocator;
            0   10     1              onHeap  Lorg/apache/cassandra/utils/memory/MemtableAllocator$SubAllocator;
            0   10     2             offHeap  Lorg/apache/cassandra/utils/memory/MemtableAllocator$SubAllocator;
            0   10     3  allocateOnHeapOnly  Z
    MethodParameters:
                    Name  Flags
      onHeap              
      offHeap             
      allocateOnHeapOnly  

  public org.apache.cassandra.utils.memory.EnsureOnHeap ensureOnHeap();
    descriptor: ()Lorg/apache/cassandra/utils/memory/EnsureOnHeap;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.cassandra.utils.memory.SlabAllocator this
         0: .line 75
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator.ensureOnHeap:Lorg/apache/cassandra/utils/memory/EnsureOnHeap;
            areturn
        end local 0 // org.apache.cassandra.utils.memory.SlabAllocator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/cassandra/utils/memory/SlabAllocator;

  public java.nio.ByteBuffer allocate(int);
    descriptor: (I)Ljava/nio/ByteBuffer;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // org.apache.cassandra.utils.memory.SlabAllocator this
        start local 1 // int size
         0: .line 80
            aload 0 /* this */
            iload 1 /* size */
            aconst_null
            invokevirtual org.apache.cassandra.utils.memory.SlabAllocator.allocate:(ILorg/apache/cassandra/utils/concurrent/OpOrder$Group;)Ljava/nio/ByteBuffer;
            areturn
        end local 1 // int size
        end local 0 // org.apache.cassandra.utils.memory.SlabAllocator this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/cassandra/utils/memory/SlabAllocator;
            0    1     1  size  I
    MethodParameters:
      Name  Flags
      size  

  public java.nio.ByteBuffer allocate(int, org.apache.cassandra.utils.concurrent.OpOrder$Group);
    descriptor: (ILorg/apache/cassandra/utils/concurrent/OpOrder$Group;)Ljava/nio/ByteBuffer;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=5, args_size=3
        start local 0 // org.apache.cassandra.utils.memory.SlabAllocator this
        start local 1 // int size
        start local 2 // org.apache.cassandra.utils.concurrent.OpOrder$Group opGroup
         0: .line 85
            getstatic org.apache.cassandra.utils.memory.SlabAllocator.$assertionsDisabled:Z
            ifne 1
            iload 1 /* size */
            ifge 1
            new java.lang.AssertionError
            dup
            invokespecial java.lang.AssertionError.<init>:()V
            athrow
         1: .line 86
      StackMap locals:
      StackMap stack:
            iload 1 /* size */
            ifne 3
         2: .line 87
            getstatic org.apache.cassandra.utils.ByteBufferUtil.EMPTY_BYTE_BUFFER:Ljava/nio/ByteBuffer;
            areturn
         3: .line 89
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator.allocateOnHeapOnly:Z
            ifeq 4
            aload 0 /* this */
            invokevirtual org.apache.cassandra.utils.memory.SlabAllocator.onHeap:()Lorg/apache/cassandra/utils/memory/MemtableAllocator$SubAllocator;
            goto 5
      StackMap locals:
      StackMap stack:
         4: aload 0 /* this */
            invokevirtual org.apache.cassandra.utils.memory.SlabAllocator.offHeap:()Lorg/apache/cassandra/utils/memory/MemtableAllocator$SubAllocator;
      StackMap locals:
      StackMap stack: org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator
         5: iload 1 /* size */
            i2l
            aload 2 /* opGroup */
            invokevirtual org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator.allocate:(JLorg/apache/cassandra/utils/concurrent/OpOrder$Group;)V
         6: .line 92
            iload 1 /* size */
            ldc 131072
            if_icmple 13
         7: .line 94
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator.unslabbedSize:Ljava/util/concurrent/atomic/AtomicLong;
            iload 1 /* size */
            i2l
            invokevirtual java.util.concurrent.atomic.AtomicLong.addAndGet:(J)J
            pop2
         8: .line 95
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator.allocateOnHeapOnly:Z
            ifeq 10
         9: .line 96
            iload 1 /* size */
            invokestatic java.nio.ByteBuffer.allocate:(I)Ljava/nio/ByteBuffer;
            areturn
        10: .line 97
      StackMap locals:
      StackMap stack:
            new org.apache.cassandra.utils.memory.SlabAllocator$Region
            dup
            iload 1 /* size */
            invokestatic java.nio.ByteBuffer.allocateDirect:(I)Ljava/nio/ByteBuffer;
            invokespecial org.apache.cassandra.utils.memory.SlabAllocator$Region.<init>:(Ljava/nio/ByteBuffer;)V
            astore 3 /* region */
        start local 3 // org.apache.cassandra.utils.memory.SlabAllocator$Region region
        11: .line 98
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator.offHeapRegions:Ljava/util/concurrent/ConcurrentLinkedQueue;
            aload 3 /* region */
            invokevirtual java.util.concurrent.ConcurrentLinkedQueue.add:(Ljava/lang/Object;)Z
            pop
        12: .line 99
            aload 3 /* region */
            iload 1 /* size */
            invokevirtual org.apache.cassandra.utils.memory.SlabAllocator$Region.allocate:(I)Ljava/nio/ByteBuffer;
            areturn
        end local 3 // org.apache.cassandra.utils.memory.SlabAllocator$Region region
        13: .line 104
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            invokevirtual org.apache.cassandra.utils.memory.SlabAllocator.getRegion:()Lorg/apache/cassandra/utils/memory/SlabAllocator$Region;
            astore 3 /* region */
        start local 3 // org.apache.cassandra.utils.memory.SlabAllocator$Region region
        14: .line 107
            aload 3 /* region */
            iload 1 /* size */
            invokevirtual org.apache.cassandra.utils.memory.SlabAllocator$Region.allocate:(I)Ljava/nio/ByteBuffer;
            astore 4 /* cloned */
        start local 4 // java.nio.ByteBuffer cloned
        15: .line 108
            aload 4 /* cloned */
            ifnull 17
        16: .line 109
            aload 4 /* cloned */
            areturn
        17: .line 112
      StackMap locals: org.apache.cassandra.utils.memory.SlabAllocator$Region java.nio.ByteBuffer
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator.currentRegion:Ljava/util/concurrent/atomic/AtomicReference;
            aload 3 /* region */
            aconst_null
            invokevirtual java.util.concurrent.atomic.AtomicReference.compareAndSet:(Ljava/lang/Object;Ljava/lang/Object;)Z
            pop
        end local 4 // java.nio.ByteBuffer cloned
        end local 3 // org.apache.cassandra.utils.memory.SlabAllocator$Region region
        18: .line 102
            goto 13
        end local 2 // org.apache.cassandra.utils.concurrent.OpOrder$Group opGroup
        end local 1 // int size
        end local 0 // org.apache.cassandra.utils.memory.SlabAllocator this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0   19     0     this  Lorg/apache/cassandra/utils/memory/SlabAllocator;
            0   19     1     size  I
            0   19     2  opGroup  Lorg/apache/cassandra/utils/concurrent/OpOrder$Group;
           11   13     3   region  Lorg/apache/cassandra/utils/memory/SlabAllocator$Region;
           14   18     3   region  Lorg/apache/cassandra/utils/memory/SlabAllocator$Region;
           15   18     4   cloned  Ljava/nio/ByteBuffer;
    MethodParameters:
         Name  Flags
      size     
      opGroup  

  public void setDiscarded();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=3, args_size=1
        start local 0 // org.apache.cassandra.utils.memory.SlabAllocator this
         0: .line 118
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator.offHeapRegions:Ljava/util/concurrent/ConcurrentLinkedQueue;
            invokevirtual java.util.concurrent.ConcurrentLinkedQueue.iterator:()Ljava/util/Iterator;
            astore 2
            goto 3
      StackMap locals: org.apache.cassandra.utils.memory.SlabAllocator top java.util.Iterator
      StackMap stack:
         1: aload 2
            invokeinterface java.util.Iterator.next:()Ljava/lang/Object;
            checkcast org.apache.cassandra.utils.memory.SlabAllocator$Region
            astore 1 /* region */
        start local 1 // org.apache.cassandra.utils.memory.SlabAllocator$Region region
         2: .line 119
            aload 1 /* region */
            getfield org.apache.cassandra.utils.memory.SlabAllocator$Region.data:Ljava/nio/ByteBuffer;
            checkcast sun.nio.ch.DirectBuffer
            invokeinterface sun.nio.ch.DirectBuffer.cleaner:()Lsun/misc/Cleaner;
            invokevirtual sun.misc.Cleaner.clean:()V
        end local 1 // org.apache.cassandra.utils.memory.SlabAllocator$Region region
         3: .line 118
      StackMap locals:
      StackMap stack:
            aload 2
            invokeinterface java.util.Iterator.hasNext:()Z
            ifne 1
         4: .line 120
            aload 0 /* this */
            invokespecial org.apache.cassandra.utils.memory.MemtableBufferAllocator.setDiscarded:()V
         5: .line 121
            return
        end local 0 // org.apache.cassandra.utils.memory.SlabAllocator this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    6     0    this  Lorg/apache/cassandra/utils/memory/SlabAllocator;
            2    3     1  region  Lorg/apache/cassandra/utils/memory/SlabAllocator$Region;

  private org.apache.cassandra.utils.memory.SlabAllocator$Region getRegion();
    descriptor: ()Lorg/apache/cassandra/utils/memory/SlabAllocator$Region;
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=4, locals=2, args_size=1
        start local 0 // org.apache.cassandra.utils.memory.SlabAllocator this
         0: .line 131
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator.currentRegion:Ljava/util/concurrent/atomic/AtomicReference;
            invokevirtual java.util.concurrent.atomic.AtomicReference.get:()Ljava/lang/Object;
            checkcast org.apache.cassandra.utils.memory.SlabAllocator$Region
            astore 1 /* region */
        start local 1 // org.apache.cassandra.utils.memory.SlabAllocator$Region region
         1: .line 132
            aload 1 /* region */
            ifnull 3
         2: .line 133
            aload 1 /* region */
            areturn
         3: .line 137
      StackMap locals: org.apache.cassandra.utils.memory.SlabAllocator$Region
      StackMap stack:
            getstatic org.apache.cassandra.utils.memory.SlabAllocator.RACE_ALLOCATED:Ljava/util/concurrent/ConcurrentLinkedQueue;
            invokevirtual java.util.concurrent.ConcurrentLinkedQueue.poll:()Ljava/lang/Object;
            checkcast org.apache.cassandra.utils.memory.SlabAllocator$Region
            astore 1 /* region */
         4: .line 138
            aload 1 /* region */
            ifnonnull 8
         5: .line 139
            new org.apache.cassandra.utils.memory.SlabAllocator$Region
            dup
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator.allocateOnHeapOnly:Z
            ifeq 6
            ldc 1048576
            invokestatic java.nio.ByteBuffer.allocate:(I)Ljava/nio/ByteBuffer;
            goto 7
      StackMap locals: org.apache.cassandra.utils.memory.SlabAllocator org.apache.cassandra.utils.memory.SlabAllocator$Region
      StackMap stack: new 5 new 5
         6: ldc 1048576
            invokestatic java.nio.ByteBuffer.allocateDirect:(I)Ljava/nio/ByteBuffer;
      StackMap locals: org.apache.cassandra.utils.memory.SlabAllocator org.apache.cassandra.utils.memory.SlabAllocator$Region
      StackMap stack: new 5 new 5 java.nio.ByteBuffer
         7: invokespecial org.apache.cassandra.utils.memory.SlabAllocator$Region.<init>:(Ljava/nio/ByteBuffer;)V
            astore 1 /* region */
         8: .line 140
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator.currentRegion:Ljava/util/concurrent/atomic/AtomicReference;
            aconst_null
            aload 1 /* region */
            invokevirtual java.util.concurrent.atomic.AtomicReference.compareAndSet:(Ljava/lang/Object;Ljava/lang/Object;)Z
            ifeq 14
         9: .line 142
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator.allocateOnHeapOnly:Z
            ifne 11
        10: .line 143
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator.offHeapRegions:Ljava/util/concurrent/ConcurrentLinkedQueue;
            aload 1 /* region */
            invokevirtual java.util.concurrent.ConcurrentLinkedQueue.add:(Ljava/lang/Object;)Z
            pop
        11: .line 144
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator.regionCount:Ljava/util/concurrent/atomic/AtomicInteger;
            invokevirtual java.util.concurrent.atomic.AtomicInteger.incrementAndGet:()I
            pop
        12: .line 145
            getstatic org.apache.cassandra.utils.memory.SlabAllocator.logger:Lorg/slf4j/Logger;
            ldc "{} regions now allocated in {}"
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator.regionCount:Ljava/util/concurrent/atomic/AtomicInteger;
            aload 0 /* this */
            invokeinterface org.slf4j.Logger.trace:(Ljava/lang/String;Ljava/lang/Object;Ljava/lang/Object;)V
        13: .line 146
            aload 1 /* region */
            areturn
        14: .line 151
      StackMap locals:
      StackMap stack:
            getstatic org.apache.cassandra.utils.memory.SlabAllocator.RACE_ALLOCATED:Ljava/util/concurrent/ConcurrentLinkedQueue;
            aload 1 /* region */
            invokevirtual java.util.concurrent.ConcurrentLinkedQueue.add:(Ljava/lang/Object;)Z
            pop
        end local 1 // org.apache.cassandra.utils.memory.SlabAllocator$Region region
        15: .line 128
            goto 0
        end local 0 // org.apache.cassandra.utils.memory.SlabAllocator this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0   16     0    this  Lorg/apache/cassandra/utils/memory/SlabAllocator;
            1   15     1  region  Lorg/apache/cassandra/utils/memory/SlabAllocator$Region;

  protected org.apache.cassandra.utils.memory.AbstractAllocator allocator(org.apache.cassandra.utils.concurrent.OpOrder$Group);
    descriptor: (Lorg/apache/cassandra/utils/concurrent/OpOrder$Group;)Lorg/apache/cassandra/utils/memory/AbstractAllocator;
    flags: (0x0004) ACC_PROTECTED
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // org.apache.cassandra.utils.memory.SlabAllocator this
        start local 1 // org.apache.cassandra.utils.concurrent.OpOrder$Group writeOp
         0: .line 157
            new org.apache.cassandra.utils.memory.ContextAllocator
            dup
            aload 1 /* writeOp */
            aload 0 /* this */
            invokespecial org.apache.cassandra.utils.memory.ContextAllocator.<init>:(Lorg/apache/cassandra/utils/concurrent/OpOrder$Group;Lorg/apache/cassandra/utils/memory/MemtableBufferAllocator;)V
            areturn
        end local 1 // org.apache.cassandra.utils.concurrent.OpOrder$Group writeOp
        end local 0 // org.apache.cassandra.utils.memory.SlabAllocator this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    1     0     this  Lorg/apache/cassandra/utils/memory/SlabAllocator;
            0    1     1  writeOp  Lorg/apache/cassandra/utils/concurrent/OpOrder$Group;
    MethodParameters:
         Name  Flags
      writeOp  
}
SourceFile: "SlabAllocator.java"
NestMembers:
  org.apache.cassandra.utils.memory.SlabAllocator$Region
InnerClasses:
  public final Group = org.apache.cassandra.utils.concurrent.OpOrder$Group of org.apache.cassandra.utils.concurrent.OpOrder
  CloneToHeap = org.apache.cassandra.utils.memory.EnsureOnHeap$CloneToHeap of org.apache.cassandra.utils.memory.EnsureOnHeap
  NoOp = org.apache.cassandra.utils.memory.EnsureOnHeap$NoOp of org.apache.cassandra.utils.memory.EnsureOnHeap
  public final SubAllocator = org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator of org.apache.cassandra.utils.memory.MemtableAllocator
  private Region = org.apache.cassandra.utils.memory.SlabAllocator$Region of org.apache.cassandra.utils.memory.SlabAllocator