class org.apache.cassandra.utils.memory.SlabAllocator$Region
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.apache.cassandra.utils.memory.SlabAllocator$Region
  super_class: java.lang.Object
{
  private final java.nio.ByteBuffer data;
    descriptor: Ljava/nio/ByteBuffer;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

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

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

  private void <init>(java.nio.ByteBuffer);
    descriptor: (Ljava/nio/ByteBuffer;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // org.apache.cassandra.utils.memory.SlabAllocator$Region this
        start local 1 // java.nio.ByteBuffer buffer
         0: .line 192
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 179
            aload 0 /* this */
            new java.util.concurrent.atomic.AtomicInteger
            dup
            iconst_0
            invokespecial java.util.concurrent.atomic.AtomicInteger.<init>:(I)V
            putfield org.apache.cassandra.utils.memory.SlabAllocator$Region.nextFreeOffset:Ljava/util/concurrent/atomic/AtomicInteger;
         2: .line 184
            aload 0 /* this */
            new java.util.concurrent.atomic.AtomicInteger
            dup
            invokespecial java.util.concurrent.atomic.AtomicInteger.<init>:()V
            putfield org.apache.cassandra.utils.memory.SlabAllocator$Region.allocCount:Ljava/util/concurrent/atomic/AtomicInteger;
         3: .line 194
            aload 0 /* this */
            aload 1 /* buffer */
            putfield org.apache.cassandra.utils.memory.SlabAllocator$Region.data:Ljava/nio/ByteBuffer;
         4: .line 195
            return
        end local 1 // java.nio.ByteBuffer buffer
        end local 0 // org.apache.cassandra.utils.memory.SlabAllocator$Region this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    5     0    this  Lorg/apache/cassandra/utils/memory/SlabAllocator$Region;
            0    5     1  buffer  Ljava/nio/ByteBuffer;
    MethodParameters:
        Name  Flags
      buffer  

  public java.nio.ByteBuffer allocate(int);
    descriptor: (I)Ljava/nio/ByteBuffer;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=3, args_size=2
        start local 0 // org.apache.cassandra.utils.memory.SlabAllocator$Region this
        start local 1 // int size
         0: .line 206
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator$Region.nextFreeOffset:Ljava/util/concurrent/atomic/AtomicInteger;
            invokevirtual java.util.concurrent.atomic.AtomicInteger.get:()I
            istore 2 /* oldOffset */
        start local 2 // int oldOffset
         1: .line 208
            iload 2 /* oldOffset */
            iload 1 /* size */
            iadd
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator$Region.data:Ljava/nio/ByteBuffer;
            invokevirtual java.nio.ByteBuffer.capacity:()I
            if_icmple 3
         2: .line 209
            aconst_null
            areturn
         3: .line 212
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator$Region.nextFreeOffset:Ljava/util/concurrent/atomic/AtomicInteger;
            iload 2 /* oldOffset */
            iload 2 /* oldOffset */
            iload 1 /* size */
            iadd
            invokevirtual java.util.concurrent.atomic.AtomicInteger.compareAndSet:(II)Z
            ifeq 0
         4: .line 215
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator$Region.allocCount:Ljava/util/concurrent/atomic/AtomicInteger;
            invokevirtual java.util.concurrent.atomic.AtomicInteger.incrementAndGet:()I
            pop
         5: .line 216
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator$Region.data:Ljava/nio/ByteBuffer;
            invokevirtual java.nio.ByteBuffer.duplicate:()Ljava/nio/ByteBuffer;
            iload 2 /* oldOffset */
            invokevirtual java.nio.ByteBuffer.position:(I)Ljava/nio/Buffer;
            iload 2 /* oldOffset */
            iload 1 /* size */
            iadd
            invokevirtual java.nio.Buffer.limit:(I)Ljava/nio/Buffer;
            checkcast java.nio.ByteBuffer
            areturn
        end local 2 // int oldOffset
        end local 1 // int size
        end local 0 // org.apache.cassandra.utils.memory.SlabAllocator$Region this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    6     0       this  Lorg/apache/cassandra/utils/memory/SlabAllocator$Region;
            0    6     1       size  I
            1    6     2  oldOffset  I
    MethodParameters:
      Name  Flags
      size  

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.apache.cassandra.utils.memory.SlabAllocator$Region this
         0: .line 225
            new java.lang.StringBuilder
            dup
            ldc "Region@"
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* this */
            invokestatic java.lang.System.identityHashCode:(Ljava/lang/Object;)I
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
         1: .line 226
            ldc " allocs="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator$Region.allocCount:Ljava/util/concurrent/atomic/AtomicInteger;
            invokevirtual java.util.concurrent.atomic.AtomicInteger.get:()I
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc "waste="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
         2: .line 227
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator$Region.data:Ljava/nio/ByteBuffer;
            invokevirtual java.nio.ByteBuffer.capacity:()I
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.SlabAllocator$Region.nextFreeOffset:Ljava/util/concurrent/atomic/AtomicInteger;
            invokevirtual java.util.concurrent.atomic.AtomicInteger.get:()I
            isub
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
         3: .line 225
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 0 // org.apache.cassandra.utils.memory.SlabAllocator$Region this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/apache/cassandra/utils/memory/SlabAllocator$Region;
}
SourceFile: "SlabAllocator.java"
NestHost: org.apache.cassandra.utils.memory.SlabAllocator
InnerClasses:
  private Region = org.apache.cassandra.utils.memory.SlabAllocator$Region of org.apache.cassandra.utils.memory.SlabAllocator