sigprocmask(_SIG_SETMASK, &sigset_all, nil)
}

// unblocksig removes sig from the current thread's signal mask.
// This is nosplit and nowritebarrierrec because it is called from
// dieFromSignal, which can be called by sigfwdgo while running in the
// signal handler, on the signal stack, with no g available.
//
//go:nosplit
//go:nowritebarrierrec
func unblocksig(sig uint32) {
	var set sigset
	sigaddset(&set, int(sig))

	f.Unlock()
	select {
	case <-ctx.Done():
	case <-f.imagePullTokenBucket:
	}
	return image.Image, retErr
}

// UnblockImagePulls unblocks a certain number of image pulls, if BlockImagePulls is true.
func (f *FakeRuntime) UnblockImagePulls(count int) {
	if f.imagePullTokenBucket != nil {
		for i := 0; i < count; i++ {
			select {

	name := gs.baseName
	if gs.label != "" {
		name += " (" + gs.label + ")"
	}
	return name
}

// setStartCause sets the reason a goroutine will be allowed to start soon.
// For example, via unblocking or exiting a blocked syscall.
func (gs *gState[R]) setStartCause(ts trace.Time, name string, resource uint64, stack trace.Stack) {
	gs.startCause.time = ts
	gs.startCause.name = name
	gs.startCause.resource = resource

	// After that it is safe to start them here, before that it is not.
	informersStarted <-chan struct{}

	// stopCh drives shutdown. When a reception from it unblocks, monitors will shut down.
	// This channel is also protected by monitorLock.
	stopCh <-chan struct{}

	// running tracks whether Run() has been called.
	// it is protected by monitorLock.
	running bool

	if requests == nil {
		go m.handleOneWayStream(responseCh, responses)
		return &Stream{responses: responseCh, Requests: nil, ctx: m.ctx, cancel: m.cancelFn, muxID: m.MuxID}, nil
	}

	// Deliver responses and send unblocks back to the server.
	go m.handleTwowayResponses(responseCh, responses)
	go m.handleTwowayRequests(responses, requests)

func TestTraceFutileWakeup(t *testing.T) {
	testTraceProg(t, "futile-wakeup.go", func(t *testing.T, tb, _ []byte, _ bool) {
		// Check to make sure that no goroutine in the "special" trace region
		// ends up blocking, unblocking, then immediately blocking again.
		//
		// The goroutines are careful to call runtime.Gosched in between blocking,
		// so there should never be a clean block/unblock on the goroutine unless

  TF_SavedModel* saved_model =
      TF_LoadSavedModelWithTags(model_dir.c_str(), ctx, kServeTag, 1, status);

  // TODO(bmzhao): Change this to expect TF_OK when loading is implemented.
  // That unblocks writing other tests that require a TF_SavedModel*,
  // like loading a ConcreteFunction. This test at least checks that the
  // C API builds and can be minimally run.
  EXPECT_EQ(TF_GetCode(status), TF_UNIMPLEMENTED);

code, the handler generally forwards the signal to the non-Go code, as
follows. If the signal is SIGPROF, the Go handler does
nothing. Otherwise, the Go handler removes itself, unblocks the
signal, and raises it again, to invoke any non-Go handler or default
system handler. If the program does not exit, the Go handler then
reinstalls itself and continues execution of the program.

// destroy method when there are no remaining references.
func (fd *FD) Close() error {
	if !fd.fdmu.increfAndClose() {
		return errClosing(fd.isFile)
	}

	// Unblock any I/O.  Once it all unblocks and returns,
	// so that it cannot be referring to fd.sysfd anymore,
	// the final decref will close fd.sysfd. This should happen
	// fairly quickly, since all the I/O is non-blocking, and any

		}
		// We can expect to receive unblocks for closed muxes
		return
	}
	v.unblockSend(m.Seq)
}

func (c *Connection) handleUnblockSrvMux(m message) {
	if m.Payload != nil {
		PutByteBuffer(m.Payload)
	}
	m.Payload = nil
	if v, ok := c.inStream.Load(m.MuxID); ok {
		v.unblockSend(m.Seq)
		return
	}
	// We can expect to receive unblocks for closed muxes
	if debugPrint {