src/java.base/share/classes/sun/nio/ch/SelectionKeyImpl.java

rev 50426 : [mq]: 6350055

*** 23,32 ****
--- 23,35 ----
   * questions.
   */
  
  package sun.nio.ch;
  
+ import java.lang.invoke.ConstantBootstraps;
+ import java.lang.invoke.MethodHandles;
+ import java.lang.invoke.VarHandle;
  import java.nio.channels.CancelledKeyException;
  import java.nio.channels.SelectableChannel;
  import java.nio.channels.SelectionKey;
  import java.nio.channels.Selector;
  import java.nio.channels.spi.AbstractSelectionKey;
*** 37,46 ****
--- 40,56 ----
   */
  
  public final class SelectionKeyImpl
      extends AbstractSelectionKey
  {
+     private static final VarHandle INTERESTOPS =
+             ConstantBootstraps.fieldVarHandle(
+                     MethodHandles.lookup(),
+                     "interestOps",
+                     VarHandle.class,
+                     SelectionKeyImpl.class, int.class);
+ 
      private final SelChImpl channel;
      private final SelectorImpl selector;
  
      private volatile int interestOps;
      private volatile int readyOps;
*** 82,92 ****
      }
  
      @Override
      public SelectionKey interestOps(int ops) {
          ensureValid();
!         return nioInterestOps(ops);
      }
  
      @Override
      public int readyOps() {
          ensureValid();
--- 92,130 ----
      }
  
      @Override
      public SelectionKey interestOps(int ops) {
          ensureValid();
!         if ((ops & ~channel().validOps()) != 0)
!             throw new IllegalArgumentException();
!         int oldOps = (int) INTERESTOPS.getAndSet(this, ops);
!         if (ops != oldOps) {
!             selector.setEventOps(this);
!         }
!         return this;
!     }
! 
!     @Override
!     public int interestOpsOr(int ops) {
!         ensureValid();
!         if ((ops & ~channel().validOps()) != 0)
!             throw new IllegalArgumentException();
!         int oldVal = (int) INTERESTOPS.getAndBitwiseOr(this, ops);
!         if (oldVal != (oldVal | ops)) {
!             selector.setEventOps(this);
!         }
!         return oldVal;
!     }
! 
!     @Override
!     public int interestOpsAnd(int ops) {
!         ensureValid();
!         int oldVal = (int) INTERESTOPS.getAndBitwiseAnd(this, ops);
!         if (oldVal != (oldVal & ops)) {
!             selector.setEventOps(this);
!         }
!         return oldVal;
      }
  
      @Override
      public int readyOps() {
          ensureValid();