org.apache.tomcat/tomcat-util/9.0.26 : org/apache/tomcat/util/collections/SynchronizedQueue.class

SynchronizedQueue
https://tomcat.apache.org/: Common code shared by multiple Tomcat components
Apache License, Version 2.0
public class org.apache.tomcat.util.collections.SynchronizedQueue<T>
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.tomcat.util.collections.SynchronizedQueue
  super_class: java.lang.Object
{
  public static final int DEFAULT_SIZE;
    descriptor: I
    flags: (0x0019) ACC_PUBLIC, ACC_STATIC, ACC_FINAL
    ConstantValue: 128

  private java.lang.Object[] queue;
    descriptor: [Ljava/lang/Object;
    flags: (0x0002) ACC_PRIVATE

  private int size;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private int insert;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  private int remove;
    descriptor: I
    flags: (0x0002) ACC_PRIVATE

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.tomcat.util.collections.SynchronizedQueue this
         0: .line 38
            aload 0 /* this */
            sipush 128
            invokespecial org.apache.tomcat.util.collections.SynchronizedQueue.<init>:(I)V
         1: .line 39
            return
        end local 0 // org.apache.tomcat.util.collections.SynchronizedQueue this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lorg/apache/tomcat/util/collections/SynchronizedQueue<TT;>;

  public void <init>(int);
    descriptor: (I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=2, args_size=2
        start local 0 // org.apache.tomcat.util.collections.SynchronizedQueue this
        start local 1 // int initialSize
         0: .line 41
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 34
            aload 0 /* this */
            iconst_0
            putfield org.apache.tomcat.util.collections.SynchronizedQueue.insert:I
         2: .line 35
            aload 0 /* this */
            iconst_0
            putfield org.apache.tomcat.util.collections.SynchronizedQueue.remove:I
         3: .line 42
            aload 0 /* this */
            iload 1 /* initialSize */
            anewarray java.lang.Object
            putfield org.apache.tomcat.util.collections.SynchronizedQueue.queue:[Ljava/lang/Object;
         4: .line 43
            aload 0 /* this */
            iload 1 /* initialSize */
            putfield org.apache.tomcat.util.collections.SynchronizedQueue.size:I
         5: .line 44
            return
        end local 1 // int initialSize
        end local 0 // org.apache.tomcat.util.collections.SynchronizedQueue this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    6     0         this  Lorg/apache/tomcat/util/collections/SynchronizedQueue<TT;>;
            0    6     1  initialSize  I
    MethodParameters:
             Name  Flags
      initialSize  

  public synchronized boolean offer();
    descriptor: (Ljava/lang/Object;)Z
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // org.apache.tomcat.util.collections.SynchronizedQueue this
        start local 1 // java.lang.Object t
         0: .line 47
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.queue:[Ljava/lang/Object;
            aload 0 /* this */
            dup
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.insert:I
            dup_x1
            iconst_1
            iadd
            putfield org.apache.tomcat.util.collections.SynchronizedQueue.insert:I
            aload 1 /* t */
            aastore
         1: .line 50
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.insert:I
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.size:I
            if_icmpne 3
         2: .line 51
            aload 0 /* this */
            iconst_0
            putfield org.apache.tomcat.util.collections.SynchronizedQueue.insert:I
         3: .line 54
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.insert:I
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.remove:I
            if_icmpne 5
         4: .line 55
            aload 0 /* this */
            invokevirtual org.apache.tomcat.util.collections.SynchronizedQueue.expand:()V
         5: .line 57
      StackMap locals:
      StackMap stack:
            iconst_1
            ireturn
        end local 1 // java.lang.Object t
        end local 0 // org.apache.tomcat.util.collections.SynchronizedQueue this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lorg/apache/tomcat/util/collections/SynchronizedQueue<TT;>;
            0    6     1     t  TT;
    Signature: (TT;)Z
    MethodParameters:
      Name  Flags
      t     

  public synchronized T poll();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=3, locals=2, args_size=1
        start local 0 // org.apache.tomcat.util.collections.SynchronizedQueue this
         0: .line 61
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.insert:I
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.remove:I
            if_icmpne 2
         1: .line 63
            aconst_null
            areturn
         2: .line 67
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.queue:[Ljava/lang/Object;
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.remove:I
            aaload
            astore 1 /* result */
        start local 1 // java.lang.Object result
         3: .line 68
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.queue:[Ljava/lang/Object;
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.remove:I
            aconst_null
            aastore
         4: .line 69
            aload 0 /* this */
            dup
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.remove:I
            iconst_1
            iadd
            putfield org.apache.tomcat.util.collections.SynchronizedQueue.remove:I
         5: .line 72
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.remove:I
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.size:I
            if_icmpne 7
         6: .line 73
            aload 0 /* this */
            iconst_0
            putfield org.apache.tomcat.util.collections.SynchronizedQueue.remove:I
         7: .line 76
      StackMap locals: java.lang.Object
      StackMap stack:
            aload 1 /* result */
            areturn
        end local 1 // java.lang.Object result
        end local 0 // org.apache.tomcat.util.collections.SynchronizedQueue this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    8     0    this  Lorg/apache/tomcat/util/collections/SynchronizedQueue<TT;>;
            3    8     1  result  TT;
    Signature: ()TT;

  private void expand();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=6, locals=3, args_size=1
        start local 0 // org.apache.tomcat.util.collections.SynchronizedQueue this
         0: .line 80
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.size:I
            iconst_2
            imul
            istore 1 /* newSize */
        start local 1 // int newSize
         1: .line 81
            iload 1 /* newSize */
            anewarray java.lang.Object
            astore 2 /* newQueue */
        start local 2 // java.lang.Object[] newQueue
         2: .line 83
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.queue:[Ljava/lang/Object;
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.insert:I
            aload 2 /* newQueue */
            iconst_0
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.size:I
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.insert:I
            isub
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
         3: .line 84
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.queue:[Ljava/lang/Object;
            iconst_0
            aload 2 /* newQueue */
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.size:I
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.insert:I
            isub
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.insert:I
            invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
         4: .line 86
            aload 0 /* this */
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.size:I
            putfield org.apache.tomcat.util.collections.SynchronizedQueue.insert:I
         5: .line 87
            aload 0 /* this */
            iconst_0
            putfield org.apache.tomcat.util.collections.SynchronizedQueue.remove:I
         6: .line 88
            aload 0 /* this */
            aload 2 /* newQueue */
            putfield org.apache.tomcat.util.collections.SynchronizedQueue.queue:[Ljava/lang/Object;
         7: .line 89
            aload 0 /* this */
            iload 1 /* newSize */
            putfield org.apache.tomcat.util.collections.SynchronizedQueue.size:I
         8: .line 90
            return
        end local 2 // java.lang.Object[] newQueue
        end local 1 // int newSize
        end local 0 // org.apache.tomcat.util.collections.SynchronizedQueue this
      LocalVariableTable:
        Start  End  Slot      Name  Signature
            0    9     0      this  Lorg/apache/tomcat/util/collections/SynchronizedQueue<TT;>;
            1    9     1   newSize  I
            2    9     2  newQueue  [Ljava/lang/Object;

  public synchronized int size();
    descriptor: ()I
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=2, locals=2, args_size=1
        start local 0 // org.apache.tomcat.util.collections.SynchronizedQueue this
         0: .line 93
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.insert:I
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.remove:I
            isub
            istore 1 /* result */
        start local 1 // int result
         1: .line 94
            iload 1 /* result */
            ifge 3
         2: .line 95
            iload 1 /* result */
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.size:I
            iadd
            istore 1 /* result */
         3: .line 97
      StackMap locals: int
      StackMap stack:
            iload 1 /* result */
            ireturn
        end local 1 // int result
        end local 0 // org.apache.tomcat.util.collections.SynchronizedQueue this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    4     0    this  Lorg/apache/tomcat/util/collections/SynchronizedQueue<TT;>;
            1    4     1  result  I

  public synchronized void clear();
    descriptor: ()V
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.tomcat.util.collections.SynchronizedQueue this
         0: .line 101
            aload 0 /* this */
            aload 0 /* this */
            getfield org.apache.tomcat.util.collections.SynchronizedQueue.size:I
            anewarray java.lang.Object
            putfield org.apache.tomcat.util.collections.SynchronizedQueue.queue:[Ljava/lang/Object;
         1: .line 102
            aload 0 /* this */
            iconst_0
            putfield org.apache.tomcat.util.collections.SynchronizedQueue.insert:I
         2: .line 103
            aload 0 /* this */
            iconst_0
            putfield org.apache.tomcat.util.collections.SynchronizedQueue.remove:I
         3: .line 104
            return
        end local 0 // org.apache.tomcat.util.collections.SynchronizedQueue this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/apache/tomcat/util/collections/SynchronizedQueue<TT;>;
}
Signature: <T:Ljava/lang/Object;>Ljava/lang/Object;
SourceFile: "SynchronizedQueue.java"
/

org.apache.tomcat/ tomcat-util/ 9.0.26/ org/apache/tomcat/util/collections/SynchronizedQueue.class
