public class org.apache.cassandra.io.util.MmappedRegions extends org.apache.cassandra.utils.concurrent.SharedCloseableImpl
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.cassandra.io.util.MmappedRegions
  super_class: org.apache.cassandra.utils.concurrent.SharedCloseableImpl
{
  public static int MAX_SEGMENT_SIZE;
    descriptor: I
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC

  static final int REGION_ALLOC_SIZE;
    descriptor: I
    flags: (0x0018) ACC_STATIC, ACC_FINAL
    ConstantValue: 15

  private final org.apache.cassandra.io.util.MmappedRegions$State state;
    descriptor: Lorg/apache/cassandra/io/util/MmappedRegions$State;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private volatile org.apache.cassandra.io.util.MmappedRegions$State copy;
    descriptor: Lorg/apache/cassandra/io/util/MmappedRegions$State;
    flags: (0x0042) ACC_PRIVATE, ACC_VOLATILE

  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=1, locals=0, args_size=0
         0: .line 37
            ldc Lorg/apache/cassandra/io/util/MmappedRegions;
            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.io.util.MmappedRegions.$assertionsDisabled:Z
         3: .line 40
            ldc 2147483647
            putstatic org.apache.cassandra.io.util.MmappedRegions.MAX_SEGMENT_SIZE:I
         4: .line 43
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  private void <init>(org.apache.cassandra.io.util.ChannelProxy, org.apache.cassandra.io.compress.CompressionMetadata, long);
    descriptor: (Lorg/apache/cassandra/io/util/ChannelProxy;Lorg/apache/cassandra/io/compress/CompressionMetadata;J)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=5, locals=5, args_size=4
        start local 0 // org.apache.cassandra.io.util.MmappedRegions this
        start local 1 // org.apache.cassandra.io.util.ChannelProxy channel
        start local 2 // org.apache.cassandra.io.compress.CompressionMetadata metadata
        start local 3 // long length
         0: .line 61
            aload 0 /* this */
            new org.apache.cassandra.io.util.MmappedRegions$State
            dup
            aload 1 /* channel */
            invokespecial org.apache.cassandra.io.util.MmappedRegions$State.<init>:(Lorg/apache/cassandra/io/util/ChannelProxy;)V
            aload 2 /* metadata */
            lload 3 /* length */
            invokespecial org.apache.cassandra.io.util.MmappedRegions.<init>:(Lorg/apache/cassandra/io/util/MmappedRegions$State;Lorg/apache/cassandra/io/compress/CompressionMetadata;J)V
         1: .line 62
            return
        end local 3 // long length
        end local 2 // org.apache.cassandra.io.compress.CompressionMetadata metadata
        end local 1 // org.apache.cassandra.io.util.ChannelProxy channel
        end local 0 // org.apache.cassandra.io.util.MmappedRegions this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    2     0      this  Lorg/apache/cassandra/io/util/MmappedRegions;
            0    2     1   channel  Lorg/apache/cassandra/io/util/ChannelProxy;
            0    2     2  metadata  Lorg/apache/cassandra/io/compress/CompressionMetadata;
            0    2     3    length  J
    MethodParameters:
          Name  Flags
      channel   
      metadata  
      length    

  private void <init>(org.apache.cassandra.io.util.MmappedRegions$State, org.apache.cassandra.io.compress.CompressionMetadata, long);
    descriptor: (Lorg/apache/cassandra/io/util/MmappedRegions$State;Lorg/apache/cassandra/io/compress/CompressionMetadata;J)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=4, locals=5, args_size=4
        start local 0 // org.apache.cassandra.io.util.MmappedRegions this
        start local 1 // org.apache.cassandra.io.util.MmappedRegions$State state
        start local 2 // org.apache.cassandra.io.compress.CompressionMetadata metadata
        start local 3 // long length
         0: .line 66
            aload 0 /* this */
            new org.apache.cassandra.io.util.MmappedRegions$Tidier
            dup
            aload 1 /* state */
            invokespecial org.apache.cassandra.io.util.MmappedRegions$Tidier.<init>:(Lorg/apache/cassandra/io/util/MmappedRegions$State;)V
            invokespecial org.apache.cassandra.utils.concurrent.SharedCloseableImpl.<init>:(Lorg/apache/cassandra/utils/concurrent/RefCounted$Tidy;)V
         1: .line 68
            aload 0 /* this */
            aload 1 /* state */
            putfield org.apache.cassandra.io.util.MmappedRegions.state:Lorg/apache/cassandra/io/util/MmappedRegions$State;
         2: .line 70
            aload 2 /* metadata */
            ifnull 6
         3: .line 72
            getstatic org.apache.cassandra.io.util.MmappedRegions.$assertionsDisabled:Z
            ifne 4
            lload 3 /* length */
            lconst_0
            lcmp
            ifeq 4
            new java.lang.AssertionError
            dup
            ldc "expected no length with metadata"
            invokespecial java.lang.AssertionError.<init>:(Ljava/lang/Object;)V
            athrow
         4: .line 73
      StackMap locals: org.apache.cassandra.io.util.MmappedRegions org.apache.cassandra.io.util.MmappedRegions$State org.apache.cassandra.io.compress.CompressionMetadata long
      StackMap stack:
            aload 0 /* this */
            aload 2 /* metadata */
            invokevirtual org.apache.cassandra.io.util.MmappedRegions.updateState:(Lorg/apache/cassandra/io/compress/CompressionMetadata;)V
         5: .line 74
            goto 8
         6: .line 75
      StackMap locals:
      StackMap stack:
            lload 3 /* length */
            lconst_0
            lcmp
            ifle 8
         7: .line 77
            aload 0 /* this */
            lload 3 /* length */
            invokevirtual org.apache.cassandra.io.util.MmappedRegions.updateState:(J)V
         8: .line 80
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            new org.apache.cassandra.io.util.MmappedRegions$State
            dup
            aload 1 /* state */
            invokespecial org.apache.cassandra.io.util.MmappedRegions$State.<init>:(Lorg/apache/cassandra/io/util/MmappedRegions$State;)V
            putfield org.apache.cassandra.io.util.MmappedRegions.copy:Lorg/apache/cassandra/io/util/MmappedRegions$State;
         9: .line 81
            return
        end local 3 // long length
        end local 2 // org.apache.cassandra.io.compress.CompressionMetadata metadata
        end local 1 // org.apache.cassandra.io.util.MmappedRegions$State state
        end local 0 // org.apache.cassandra.io.util.MmappedRegions this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0   10     0      this  Lorg/apache/cassandra/io/util/MmappedRegions;
            0   10     1     state  Lorg/apache/cassandra/io/util/MmappedRegions$State;
            0   10     2  metadata  Lorg/apache/cassandra/io/compress/CompressionMetadata;
            0   10     3    length  J
    MethodParameters:
          Name  Flags
      state     
      metadata  
      length    

  private void <init>(org.apache.cassandra.io.util.MmappedRegions);
    descriptor: (Lorg/apache/cassandra/io/util/MmappedRegions;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.cassandra.io.util.MmappedRegions this
        start local 1 // org.apache.cassandra.io.util.MmappedRegions original
         0: .line 85
            aload 0 /* this */
            aload 1 /* original */
            invokespecial org.apache.cassandra.utils.concurrent.SharedCloseableImpl.<init>:(Lorg/apache/cassandra/utils/concurrent/SharedCloseableImpl;)V
         1: .line 86
            aload 0 /* this */
            aload 1 /* original */
            getfield org.apache.cassandra.io.util.MmappedRegions.copy:Lorg/apache/cassandra/io/util/MmappedRegions$State;
            putfield org.apache.cassandra.io.util.MmappedRegions.state:Lorg/apache/cassandra/io/util/MmappedRegions$State;
         2: .line 87
            return
        end local 1 // org.apache.cassandra.io.util.MmappedRegions original
        end local 0 // org.apache.cassandra.io.util.MmappedRegions this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    3     0      this  Lorg/apache/cassandra/io/util/MmappedRegions;
            0    3     1  original  Lorg/apache/cassandra/io/util/MmappedRegions;
    MethodParameters:
          Name  Flags
      original  

  public static org.apache.cassandra.io.util.MmappedRegions empty(org.apache.cassandra.io.util.ChannelProxy);
    descriptor: (Lorg/apache/cassandra/io/util/ChannelProxy;)Lorg/apache/cassandra/io/util/MmappedRegions;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=6, locals=1, args_size=1
        start local 0 // org.apache.cassandra.io.util.ChannelProxy channel
         0: .line 91
            new org.apache.cassandra.io.util.MmappedRegions
            dup
            aload 0 /* channel */
            aconst_null
            lconst_0
            invokespecial org.apache.cassandra.io.util.MmappedRegions.<init>:(Lorg/apache/cassandra/io/util/ChannelProxy;Lorg/apache/cassandra/io/compress/CompressionMetadata;J)V
            areturn
        end local 0 // org.apache.cassandra.io.util.ChannelProxy channel
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    1     0  channel  Lorg/apache/cassandra/io/util/ChannelProxy;
    MethodParameters:
         Name  Flags
      channel  

  public static org.apache.cassandra.io.util.MmappedRegions map(org.apache.cassandra.io.util.ChannelProxy, org.apache.cassandra.io.compress.CompressionMetadata);
    descriptor: (Lorg/apache/cassandra/io/util/ChannelProxy;Lorg/apache/cassandra/io/compress/CompressionMetadata;)Lorg/apache/cassandra/io/util/MmappedRegions;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=6, locals=2, args_size=2
        start local 0 // org.apache.cassandra.io.util.ChannelProxy channel
        start local 1 // org.apache.cassandra.io.compress.CompressionMetadata metadata
         0: .line 101
            aload 1 /* metadata */
            ifnonnull 2
         1: .line 102
            new java.lang.IllegalArgumentException
            dup
            ldc "metadata cannot be null"
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 104
      StackMap locals:
      StackMap stack:
            new org.apache.cassandra.io.util.MmappedRegions
            dup
            aload 0 /* channel */
            aload 1 /* metadata */
            lconst_0
            invokespecial org.apache.cassandra.io.util.MmappedRegions.<init>:(Lorg/apache/cassandra/io/util/ChannelProxy;Lorg/apache/cassandra/io/compress/CompressionMetadata;J)V
            areturn
        end local 1 // org.apache.cassandra.io.compress.CompressionMetadata metadata
        end local 0 // org.apache.cassandra.io.util.ChannelProxy channel
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    3     0   channel  Lorg/apache/cassandra/io/util/ChannelProxy;
            0    3     1  metadata  Lorg/apache/cassandra/io/compress/CompressionMetadata;
    MethodParameters:
          Name  Flags
      channel   
      metadata  

  public static org.apache.cassandra.io.util.MmappedRegions map(org.apache.cassandra.io.util.ChannelProxy, long);
    descriptor: (Lorg/apache/cassandra/io/util/ChannelProxy;J)Lorg/apache/cassandra/io/util/MmappedRegions;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=6, locals=3, args_size=2
        start local 0 // org.apache.cassandra.io.util.ChannelProxy channel
        start local 1 // long length
         0: .line 109
            lload 1 /* length */
            lconst_0
            lcmp
            ifgt 2
         1: .line 110
            new java.lang.IllegalArgumentException
            dup
            ldc "Length must be positive"
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 112
      StackMap locals:
      StackMap stack:
            new org.apache.cassandra.io.util.MmappedRegions
            dup
            aload 0 /* channel */
            aconst_null
            lload 1 /* length */
            invokespecial org.apache.cassandra.io.util.MmappedRegions.<init>:(Lorg/apache/cassandra/io/util/ChannelProxy;Lorg/apache/cassandra/io/compress/CompressionMetadata;J)V
            areturn
        end local 1 // long length
        end local 0 // org.apache.cassandra.io.util.ChannelProxy channel
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    3     0  channel  Lorg/apache/cassandra/io/util/ChannelProxy;
            0    3     1   length  J
    MethodParameters:
         Name  Flags
      channel  
      length   

  public org.apache.cassandra.io.util.MmappedRegions sharedCopy();
    descriptor: ()Lorg/apache/cassandra/io/util/MmappedRegions;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.apache.cassandra.io.util.MmappedRegions this
         0: .line 121
            new org.apache.cassandra.io.util.MmappedRegions
            dup
            aload 0 /* this */
            invokespecial org.apache.cassandra.io.util.MmappedRegions.<init>:(Lorg/apache/cassandra/io/util/MmappedRegions;)V
            areturn
        end local 0 // org.apache.cassandra.io.util.MmappedRegions this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/cassandra/io/util/MmappedRegions;

  private boolean isCopy();
    descriptor: ()Z
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.cassandra.io.util.MmappedRegions this
         0: .line 126
            aload 0 /* this */
            getfield org.apache.cassandra.io.util.MmappedRegions.copy:Lorg/apache/cassandra/io/util/MmappedRegions$State;
            ifnonnull 1
            iconst_1
            ireturn
      StackMap locals:
      StackMap stack:
         1: iconst_0
            ireturn
        end local 0 // org.apache.cassandra.io.util.MmappedRegions this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/cassandra/io/util/MmappedRegions;

  public void extend(long);
    descriptor: (J)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=3, args_size=2
        start local 0 // org.apache.cassandra.io.util.MmappedRegions this
        start local 1 // long length
         0: .line 131
            lload 1 /* length */
            lconst_0
            lcmp
            ifge 2
         1: .line 132
            new java.lang.IllegalArgumentException
            dup
            ldc "Length must not be negative"
            invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 134
      StackMap locals:
      StackMap stack:
            getstatic org.apache.cassandra.io.util.MmappedRegions.$assertionsDisabled:Z
            ifne 3
            aload 0 /* this */
            invokevirtual org.apache.cassandra.io.util.MmappedRegions.isCopy:()Z
            ifeq 3
            new java.lang.AssertionError
            dup
            ldc "Copies cannot be extended"
            invokespecial java.lang.AssertionError.<init>:(Ljava/lang/Object;)V
            athrow
         3: .line 136
      StackMap locals:
      StackMap stack:
            lload 1 /* length */
            aload 0 /* this */
            getfield org.apache.cassandra.io.util.MmappedRegions.state:Lorg/apache/cassandra/io/util/MmappedRegions$State;
            getfield org.apache.cassandra.io.util.MmappedRegions$State.length:J
            lcmp
            ifgt 5
         4: .line 137
            return
         5: .line 139
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            lload 1 /* length */
            invokevirtual org.apache.cassandra.io.util.MmappedRegions.updateState:(J)V
         6: .line 140
            aload 0 /* this */
            new org.apache.cassandra.io.util.MmappedRegions$State
            dup
            aload 0 /* this */
            getfield org.apache.cassandra.io.util.MmappedRegions.state:Lorg/apache/cassandra/io/util/MmappedRegions$State;
            invokespecial org.apache.cassandra.io.util.MmappedRegions$State.<init>:(Lorg/apache/cassandra/io/util/MmappedRegions$State;)V
            putfield org.apache.cassandra.io.util.MmappedRegions.copy:Lorg/apache/cassandra/io/util/MmappedRegions$State;
         7: .line 141
            return
        end local 1 // long length
        end local 0 // org.apache.cassandra.io.util.MmappedRegions this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    8     0    this  Lorg/apache/cassandra/io/util/MmappedRegions;
            0    8     1  length  J
    MethodParameters:
        Name  Flags
      length  

  private void updateState(long);
    descriptor: (J)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=6, locals=7, args_size=2
        start local 0 // org.apache.cassandra.io.util.MmappedRegions this
        start local 1 // long length
         0: .line 145
            aload 0 /* this */
            getfield org.apache.cassandra.io.util.MmappedRegions.state:Lorg/apache/cassandra/io/util/MmappedRegions$State;
            lload 1 /* length */
            putfield org.apache.cassandra.io.util.MmappedRegions$State.length:J
         1: .line 146
            aload 0 /* this */
            getfield org.apache.cassandra.io.util.MmappedRegions.state:Lorg/apache/cassandra/io/util/MmappedRegions$State;
            invokevirtual org.apache.cassandra.io.util.MmappedRegions$State.getPosition:()J
            lstore 3 /* pos */
        start local 3 // long pos
         2: .line 147
            goto 6
         3: .line 149
      StackMap locals: long
      StackMap stack:
            getstatic org.apache.cassandra.io.util.MmappedRegions.MAX_SEGMENT_SIZE:I
            i2l
            lload 1 /* length */
            lload 3 /* pos */
            lsub
            invokestatic java.lang.Math.min:(JJ)J
            lstore 5 /* size */
        start local 5 // long size
         4: .line 150
            aload 0 /* this */
            getfield org.apache.cassandra.io.util.MmappedRegions.state:Lorg/apache/cassandra/io/util/MmappedRegions$State;
            lload 3 /* pos */
            lload 5 /* size */
            invokevirtual org.apache.cassandra.io.util.MmappedRegions$State.add:(JJ)V
         5: .line 151
            lload 3 /* pos */
            lload 5 /* size */
            ladd
            lstore 3 /* pos */
        end local 5 // long size
         6: .line 147
      StackMap locals:
      StackMap stack:
            lload 3 /* pos */
            lload 1 /* length */
            lcmp
            iflt 3
         7: .line 153
            return
        end local 3 // long pos
        end local 1 // long length
        end local 0 // org.apache.cassandra.io.util.MmappedRegions this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    8     0    this  Lorg/apache/cassandra/io/util/MmappedRegions;
            0    8     1  length  J
            2    8     3     pos  J
            4    6     5    size  J
    MethodParameters:
        Name  Flags
      length  

  private void updateState(org.apache.cassandra.io.compress.CompressionMetadata);
    descriptor: (Lorg/apache/cassandra/io/compress/CompressionMetadata;)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=5, locals=9, args_size=2
        start local 0 // org.apache.cassandra.io.util.MmappedRegions this
        start local 1 // org.apache.cassandra.io.compress.CompressionMetadata metadata
         0: .line 157
            lconst_0
            lstore 2 /* offset */
        start local 2 // long offset
         1: .line 158
            lconst_0
            lstore 4 /* lastSegmentOffset */
        start local 4 // long lastSegmentOffset
         2: .line 159
            lconst_0
            lstore 6 /* segmentSize */
        start local 6 // long segmentSize
         3: .line 161
            goto 12
         4: .line 163
      StackMap locals: long long long
      StackMap stack:
            aload 1 /* metadata */
            lload 2 /* offset */
            invokevirtual org.apache.cassandra.io.compress.CompressionMetadata.chunkFor:(J)Lorg/apache/cassandra/io/compress/CompressionMetadata$Chunk;
            astore 8 /* chunk */
        start local 8 // org.apache.cassandra.io.compress.CompressionMetadata$Chunk chunk
         5: .line 166
            lload 6 /* segmentSize */
            aload 8 /* chunk */
            getfield org.apache.cassandra.io.compress.CompressionMetadata$Chunk.length:I
            i2l
            ladd
            ldc 4
            ladd
            getstatic org.apache.cassandra.io.util.MmappedRegions.MAX_SEGMENT_SIZE:I
            i2l
            lcmp
            ifle 10
         6: .line 168
            lload 6 /* segmentSize */
            lconst_0
            lcmp
            ifle 10
         7: .line 170
            aload 0 /* this */
            getfield org.apache.cassandra.io.util.MmappedRegions.state:Lorg/apache/cassandra/io/util/MmappedRegions$State;
            lload 4 /* lastSegmentOffset */
            lload 6 /* segmentSize */
            invokevirtual org.apache.cassandra.io.util.MmappedRegions$State.add:(JJ)V
         8: .line 171
            lload 4 /* lastSegmentOffset */
            lload 6 /* segmentSize */
            ladd
            lstore 4 /* lastSegmentOffset */
         9: .line 172
            lconst_0
            lstore 6 /* segmentSize */
        10: .line 176
      StackMap locals: org.apache.cassandra.io.compress.CompressionMetadata$Chunk
      StackMap stack:
            lload 6 /* segmentSize */
            aload 8 /* chunk */
            getfield org.apache.cassandra.io.compress.CompressionMetadata$Chunk.length:I
            iconst_4
            iadd
            i2l
            ladd
            lstore 6 /* segmentSize */
        11: .line 177
            lload 2 /* offset */
            aload 1 /* metadata */
            invokevirtual org.apache.cassandra.io.compress.CompressionMetadata.chunkLength:()I
            i2l
            ladd
            lstore 2 /* offset */
        end local 8 // org.apache.cassandra.io.compress.CompressionMetadata$Chunk chunk
        12: .line 161
      StackMap locals:
      StackMap stack:
            lload 2 /* offset */
            aload 1 /* metadata */
            getfield org.apache.cassandra.io.compress.CompressionMetadata.dataLength:J
            lcmp
            iflt 4
        13: .line 180
            lload 6 /* segmentSize */
            lconst_0
            lcmp
            ifle 15
        14: .line 181
            aload 0 /* this */
            getfield org.apache.cassandra.io.util.MmappedRegions.state:Lorg/apache/cassandra/io/util/MmappedRegions$State;
            lload 4 /* lastSegmentOffset */
            lload 6 /* segmentSize */
            invokevirtual org.apache.cassandra.io.util.MmappedRegions$State.add:(JJ)V
        15: .line 183
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.cassandra.io.util.MmappedRegions.state:Lorg/apache/cassandra/io/util/MmappedRegions$State;
            lload 4 /* lastSegmentOffset */
            lload 6 /* segmentSize */
            ladd
            putfield org.apache.cassandra.io.util.MmappedRegions$State.length:J
        16: .line 184
            return
        end local 6 // long segmentSize
        end local 4 // long lastSegmentOffset
        end local 2 // long offset
        end local 1 // org.apache.cassandra.io.compress.CompressionMetadata metadata
        end local 0 // org.apache.cassandra.io.util.MmappedRegions this
      LocalVariableTable:
        Start  End  Slot               Name  Signature
            0   17     0               this  Lorg/apache/cassandra/io/util/MmappedRegions;
            0   17     1           metadata  Lorg/apache/cassandra/io/compress/CompressionMetadata;
            1   17     2             offset  J
            2   17     4  lastSegmentOffset  J
            3   17     6        segmentSize  J
            5   12     8              chunk  Lorg/apache/cassandra/io/compress/CompressionMetadata$Chunk;
    MethodParameters:
          Name  Flags
      metadata  

  public boolean isValid(org.apache.cassandra.io.util.ChannelProxy);
    descriptor: (Lorg/apache/cassandra/io/util/ChannelProxy;)Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.cassandra.io.util.MmappedRegions this
        start local 1 // org.apache.cassandra.io.util.ChannelProxy channel
         0: .line 188
            aload 0 /* this */
            getfield org.apache.cassandra.io.util.MmappedRegions.state:Lorg/apache/cassandra/io/util/MmappedRegions$State;
            aload 1 /* channel */
            invokevirtual org.apache.cassandra.io.util.MmappedRegions$State.isValid:(Lorg/apache/cassandra/io/util/ChannelProxy;)Z
            ireturn
        end local 1 // org.apache.cassandra.io.util.ChannelProxy channel
        end local 0 // org.apache.cassandra.io.util.MmappedRegions this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    1     0     this  Lorg/apache/cassandra/io/util/MmappedRegions;
            0    1     1  channel  Lorg/apache/cassandra/io/util/ChannelProxy;
    MethodParameters:
         Name  Flags
      channel  

  public boolean isEmpty();
    descriptor: ()Z
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.apache.cassandra.io.util.MmappedRegions this
         0: .line 193
            aload 0 /* this */
            getfield org.apache.cassandra.io.util.MmappedRegions.state:Lorg/apache/cassandra/io/util/MmappedRegions$State;
            invokevirtual org.apache.cassandra.io.util.MmappedRegions$State.isEmpty:()Z
            ireturn
        end local 0 // org.apache.cassandra.io.util.MmappedRegions this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/cassandra/io/util/MmappedRegions;

  public org.apache.cassandra.io.util.MmappedRegions$Region floor(long);
    descriptor: (J)Lorg/apache/cassandra/io/util/MmappedRegions$Region;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // org.apache.cassandra.io.util.MmappedRegions this
        start local 1 // long position
         0: .line 198
            getstatic org.apache.cassandra.io.util.MmappedRegions.$assertionsDisabled:Z
            ifne 1
            aload 0 /* this */
            invokevirtual org.apache.cassandra.io.util.MmappedRegions.isCleanedUp:()Z
            ifeq 1
            new java.lang.AssertionError
            dup
            ldc "Attempted to use closed region"
            invokespecial java.lang.AssertionError.<init>:(Ljava/lang/Object;)V
            athrow
         1: .line 199
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.cassandra.io.util.MmappedRegions.state:Lorg/apache/cassandra/io/util/MmappedRegions$State;
            lload 1 /* position */
            invokevirtual org.apache.cassandra.io.util.MmappedRegions$State.floor:(J)Lorg/apache/cassandra/io/util/MmappedRegions$Region;
            areturn
        end local 1 // long position
        end local 0 // org.apache.cassandra.io.util.MmappedRegions this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    2     0      this  Lorg/apache/cassandra/io/util/MmappedRegions;
            0    2     1  position  J
    MethodParameters:
          Name  Flags
      position  

  public void closeQuietly();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // org.apache.cassandra.io.util.MmappedRegions this
         0: .line 204
            aload 0 /* this */
            aconst_null
            invokevirtual org.apache.cassandra.io.util.MmappedRegions.close:(Ljava/lang/Throwable;)Ljava/lang/Throwable;
            astore 1 /* err */
        start local 1 // java.lang.Throwable err
         1: .line 205
            aload 1 /* err */
            ifnull 4
         2: .line 207
            aload 1 /* err */
            invokestatic org.apache.cassandra.utils.JVMStabilityInspector.inspectThrowable:(Ljava/lang/Throwable;)V
         3: .line 210
            aload 0 /* this */
            invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
            invokestatic org.slf4j.LoggerFactory.getLogger:(Ljava/lang/Class;)Lorg/slf4j/Logger;
            ldc "Error while closing mmapped regions"
            aload 1 /* err */
            invokeinterface org.slf4j.Logger.error:(Ljava/lang/String;Ljava/lang/Throwable;)V
         4: .line 212
      StackMap locals: java.lang.Throwable
      StackMap stack:
            return
        end local 1 // java.lang.Throwable err
        end local 0 // org.apache.cassandra.io.util.MmappedRegions this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lorg/apache/cassandra/io/util/MmappedRegions;
            1    5     1   err  Ljava/lang/Throwable;

  public org.apache.cassandra.utils.concurrent.SharedCloseable sharedCopy();
    descriptor: ()Lorg/apache/cassandra/utils/concurrent/SharedCloseable;
    flags: (0x1041) ACC_PUBLIC, ACC_BRIDGE, ACC_SYNTHETIC
    Code:
      stack=1, locals=1, args_size=1
         0: .line 1
            aload 0
            invokevirtual org.apache.cassandra.io.util.MmappedRegions.sharedCopy:()Lorg/apache/cassandra/io/util/MmappedRegions;
            areturn
      LocalVariableTable:
        Start  End  Slot  Name  Signature
}
SourceFile: "MmappedRegions.java"
NestMembers:
  org.apache.cassandra.io.util.MmappedRegions$Region  org.apache.cassandra.io.util.MmappedRegions$State  org.apache.cassandra.io.util.MmappedRegions$Tidier
InnerClasses:
  public Chunk = org.apache.cassandra.io.compress.CompressionMetadata$Chunk of org.apache.cassandra.io.compress.CompressionMetadata
  public final Region = org.apache.cassandra.io.util.MmappedRegions$Region of org.apache.cassandra.io.util.MmappedRegions
  private final State = org.apache.cassandra.io.util.MmappedRegions$State of org.apache.cassandra.io.util.MmappedRegions
  public final Tidier = org.apache.cassandra.io.util.MmappedRegions$Tidier of org.apache.cassandra.io.util.MmappedRegions
  public abstract Tidy = org.apache.cassandra.utils.concurrent.RefCounted$Tidy of org.apache.cassandra.utils.concurrent.RefCounted