//
//go:nosplit
func futexwakeup(addr *uint32, cnt uint32) {
	ret := futex(unsafe.Pointer(addr), _FUTEX_WAKE_PRIVATE, cnt, nil, nil, 0)
	if ret >= 0 {
		return
	}

	// I don't know that futex wakeup can return
	// EAGAIN or EINTR, but if it does, it would be
	// safe to loop and call futex again.
	systemstack(func() {
		print("futexwakeup addr=", addr, " returned ", ret, "\n")
	})

    waiter1.interrupt();

    waiter1.join();
    waiter2.awaitWaiting(); // should still be blocked

    LockSupport.unpark(waiter2); // spurious wakeup
    waiter2.awaitWaiting(); // should eventually re-park

    future.set(null);
    waiter2.join();
  }

  public void testRemoveWaiter_polling() throws Exception {

	gp.param = nil
	if mysg.releasetime > 0 {
		blockevent(mysg.releasetime-t0, 2)
	}
	mysg.c = nil
	releaseSudog(mysg)
	if closed {
		if c.closed == 0 {
			throw("chansend: spurious wakeup")
		}
		panic(plainError("send on closed channel"))
	}
	return true
}

// send processes a send operation on an empty channel c.
// The value ep sent by the sender is copied to the receiver sg.

    waiter1.interrupt();

    waiter1.join();
    waiter2.awaitWaiting(); // should still be blocked

    LockSupport.unpark(waiter2); // spurious wakeup
    waiter2.awaitWaiting(); // should eventually re-park

    future.set(null);
    waiter2.join();
  }

  public void testRemoveWaiter_polling() throws Exception {

   *
   * <p>On the other hand, if a signalled thread wakes up to discover that its guard is still not
   * satisfied, it does *not* need to call this method before returning to wait. This can only
   * happen due to spurious wakeup (ignorable) or another thread acquiring the lock before the
   * current thread can and returning the guard to the unsatisfied state. In the latter case the

   *
   * <p>On the other hand, if a signalled thread wakes up to discover that its guard is still not
   * satisfied, it does *not* need to call this method before returning to wait. This can only
   * happen due to spurious wakeup (ignorable) or another thread acquiring the lock before the
   * current thread can and returning the guard to the unsatisfied state. In the latter case the

	DN_NT_DRIVER             = 0x01000000        // This devnode's is an NT driver
	DN_NEEDS_LOCKING         = 0x02000000        // Devnode need lock resume processing
	DN_ARM_WAKEUP            = 0x04000000        // Devnode can be the wakeup device
	DN_APM_ENUMERATOR        = 0x08000000        // APM aware enumerator
	DN_APM_DRIVER            = 0x10000000        // APM aware driver
	DN_SILENT_INSTALL        = 0x20000000        // Silent install

	lockRankStruct
	// Futex-based impl treats it as uint32 key,
	// while sema-based impl as M* waitm.
	// Used to be a union, but unions break precise GC.
	key uintptr
}

// sleep and wakeup on one-time events.
// before any calls to notesleep or notewakeup,
// must call noteclear to initialize the Note.
// then, exactly one thread can call notesleep
// and exactly one thread can call notewakeup (once).

  <mime-type type="application/vnd.japannet-jpnstore-wakeup"/>
  <mime-type type="application/vnd.japannet-payment-wakeup"/>
  <mime-type type="application/vnd.japannet-registration"/>
  <mime-type type="application/vnd.japannet-registration-wakeup"/>
  <mime-type type="application/vnd.japannet-setstore-wakeup"/>
  <mime-type type="application/vnd.japannet-verification"/>

	Hostname string `protobuf:"bytes,21,opt,name=hostname,proto3" json:"hostname,omitempty"`
	// Network represents the network this workload is on. This may be elided for the default network.
	// A (network,address) pair makeup a unique key for a workload *at a point in time*.
	Network string `protobuf:"bytes,4,opt,name=network,proto3" json:"network,omitempty"`
	// Protocol that should be used to connect to this workload.