Doug Lea writes:

"The request is to add three methods, whose primary use
is to support lazySet, but are also needed to
correctly and efficiently handle barrier-less volatile
writes. For example, setting the parkBlocker in support
of Mandy's stuff. (I can add more explanation and
implementation notes if they would be useful for CCC.)



      /**
       * Version of {@link #putObjectVolatile(Object, long, Object)}
       * that does not guarantee immediate visibility of the store to
       * other threads. This method is generally only useful if the
       * underlying field is a Java volatile (or if an array cell, one
       * that is otherwise only accessed using volatile accesses).
       */
      public native void putOrderedObject(Object o, long offset,
Object x);

      /** Ordered/Lazy version of {@link #putIntVolatile(Object, long,
int)} */
      public native void putOrderedInt(Object o, long offset, int x);

      /** Ordered/Lazy version of {@link #putLongVolatile(Object, long,
long)} */
      public native void putOrderedLong(Object o, long offset, long x);
"

###@###.### 2005-06-07 07:06:32 GMT