org.apache.cassandra/cassandra-all/3.11.5 : org/apache/cassandra/utils/memory/NativeAllocator$Region.class

NativeAllocator$Region

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.

The Apache Software License, Version 2.0

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

class org.apache.cassandra.utils.memory.NativeAllocator$Region
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.apache.cassandra.utils.memory.NativeAllocator$Region
  super_class: java.lang.Object
{
  private final long peer;
    descriptor: J
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final int capacity;
    descriptor: I
    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>(long, int);
    descriptor: (JI)V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=4, locals=4, args_size=3
        start local 0 // org.apache.cassandra.utils.memory.NativeAllocator$Region this
        start local 1 // long peer
        start local 3 // int capacity
         0: .line 231
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 218
            aload 0 /* this */
            new java.util.concurrent.atomic.AtomicInteger
            dup
            iconst_0
            invokespecial java.util.concurrent.atomic.AtomicInteger.<init>:(I)V
            putfield org.apache.cassandra.utils.memory.NativeAllocator$Region.nextFreeOffset:Ljava/util/concurrent/atomic/AtomicInteger;
         2: .line 223
            aload 0 /* this */
            new java.util.concurrent.atomic.AtomicInteger
            dup
            invokespecial java.util.concurrent.atomic.AtomicInteger.<init>:()V
            putfield org.apache.cassandra.utils.memory.NativeAllocator$Region.allocCount:Ljava/util/concurrent/atomic/AtomicInteger;
         3: .line 233
            aload 0 /* this */
            lload 1 /* peer */
            putfield org.apache.cassandra.utils.memory.NativeAllocator$Region.peer:J
         4: .line 234
            aload 0 /* this */
            iload 3 /* capacity */
            putfield org.apache.cassandra.utils.memory.NativeAllocator$Region.capacity:I
         5: .line 235
            return
        end local 3 // int capacity
        end local 1 // long peer
        end local 0 // org.apache.cassandra.utils.memory.NativeAllocator$Region this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    6     0      this  Lorg/apache/cassandra/utils/memory/NativeAllocator$Region;
            0    6     1      peer  J
            0    6     3  capacity  I
    MethodParameters:
          Name  Flags
      peer      
      capacity  

  long allocate(int);
    descriptor: (I)J
    flags: (0x0000) 
    Code:
      stack=4, locals=3, args_size=2
        start local 0 // org.apache.cassandra.utils.memory.NativeAllocator$Region this
        start local 1 // int size
         0: .line 246
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.NativeAllocator$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 248
            iload 2 /* oldOffset */
            iload 1 /* size */
            iadd
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.NativeAllocator$Region.capacity:I
            if_icmple 3
         2: .line 249
            ldc -1
            lreturn
         3: .line 252
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.NativeAllocator$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 255
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.NativeAllocator$Region.allocCount:Ljava/util/concurrent/atomic/AtomicInteger;
            invokevirtual java.util.concurrent.atomic.AtomicInteger.incrementAndGet:()I
            pop
         5: .line 256
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.NativeAllocator$Region.peer:J
            iload 2 /* oldOffset */
            i2l
            ladd
            lreturn
        end local 2 // int oldOffset
        end local 1 // int size
        end local 0 // org.apache.cassandra.utils.memory.NativeAllocator$Region this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    6     0       this  Lorg/apache/cassandra/utils/memory/NativeAllocator$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.NativeAllocator$Region this
         0: .line 265
            new java.lang.StringBuilder
            dup
            ldc "Region@"
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* this */
            invokestatic java.lang.System.identityHashCode:(Ljava/lang/Object;)I
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
         1: .line 266
            ldc " allocs="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.NativeAllocator$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 267
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.NativeAllocator$Region.capacity:I
            aload 0 /* this */
            getfield org.apache.cassandra.utils.memory.NativeAllocator$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 265
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 0 // org.apache.cassandra.utils.memory.NativeAllocator$Region this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/apache/cassandra/utils/memory/NativeAllocator$Region;
}
SourceFile: "NativeAllocator.java"
NestHost: org.apache.cassandra.utils.memory.NativeAllocator
InnerClasses:
  private Region = org.apache.cassandra.utils.memory.NativeAllocator$Region of org.apache.cassandra.utils.memory.NativeAllocator

/

org.apache.cassandra/ cassandra-all/ 3.11.5/ org/apache/cassandra/utils/memory/NativeAllocator$Region.class