Class ThreadHints


  • public final class ThreadHints
    extends java.lang.Object
    This class captures possible hints that may be used by some runtimes to improve code performance. It is intended to capture hinting behaviours that are implemented in or anticipated to be spec'ed under the Thread class in some Java SE versions, but missing in prior versions.
    • Field Summary

      Fields 
      Modifier and Type Field Description
      private static java.lang.invoke.MethodHandle ON_SPIN_WAIT_METHOD_HANDLE  
    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      private ThreadHints()  
    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static void onSpinWait()
      Indicates that the caller is momentarily unable to progress, until the occurrence of one or more actions on the part of other activities.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • ON_SPIN_WAIT_METHOD_HANDLE

        private static final java.lang.invoke.MethodHandle ON_SPIN_WAIT_METHOD_HANDLE
    • Constructor Detail

      • ThreadHints

        private ThreadHints()
    • Method Detail

      • onSpinWait

        public static void onSpinWait()
        Indicates that the caller is momentarily unable to progress, until the occurrence of one or more actions on the part of other activities. By invoking this method within each iteration of a spin-wait loop construct, the calling thread indicates to the runtime that it is busy-waiting. The runtime may take action to improve the performance of invoking spin-wait loop constructions.