// Pop already expired watchers. However, explicitly ignore stopped ones,
	// as we don't delete watcher from bookmarkWatchers when it is stopped.
	for _, watchers := range c.bookmarkWatchers.popExpiredWatchersThreadUnsafe() {
		for _, watcher := range watchers {
			// c.Lock() is held here.
			// watcher.stopThreadUnsafe() is protected by c.Lock()
			if watcher.stopped {
				continue
			}

  # Wait (if necessary) for service to stop.
  $timeout = 10
  $stopped = (Get-service $service).Status -eq 'Stopped'
  for ($i = 0; $i -lt $timeout -and !($stopped); $i++) {
      Start-Sleep 1
      $stopped = (Get-service $service).Status -eq 'Stopped'
  }

  if ((Get-service $service).Status -ne 'Stopped') {
    # Force kill the processes.

	18: "child Status Changed",
	19: "power-Fail/Restart",
	20: "window Size Change",
	21: "urgent Socket Condition",
	22: "pollable Event",
	23: "stopped (signal)",
	24: "stopped (user)",
	25: "continued",
	26: "stopped (tty input)",
	27: "stopped (tty output)",
	28: "virtual Timer Expired",
	29: "profiling Timer Expired",
	30: "cpu Limit Exceeded",
	31: "file Size Limit Exceeded",

	"unsafe"
)

const (
	_DebugGC      = 0
	_FinBlockSize = 4 * 1024

	// concurrentSweep is a debug flag. Disabling this flag
	// ensures all spans are swept while the world is stopped.
	concurrentSweep = true

	// debugScanConservative enables debug logging for stack
	// frames that are scanned conservatively.
	debugScanConservative = false

	12: "user defined signal 2",
	13: "broken pipe",
	14: "alarm clock",
	15: "terminated",
	16: "stack fault",
	17: "child exited",
	18: "continued",
	19: "stopped (signal)",
	20: "stopped",
	21: "stopped (tty input)",
	22: "stopped (tty output)",
	23: "urgent I/O condition",
	24: "CPU time limit exceeded",
	25: "file size limit exceeded",
	26: "virtual timer expired",
	27: "profiling timer expired",

	12: "bad system call",
	13: "broken pipe",
	14: "alarm clock",
	15: "terminated",
	16: "urgent I/O condition",
	17: "stopped (signal)",
	18: "stopped",
	19: "continued",
	20: "child exited",
	21: "stopped (tty input)",
	22: "stopped (tty output)",
	23: "I/O possible",
	24: "cputime limit exceeded",
	25: "filesize limit exceeded",
	26: "virtual timer expired",

			// goroutines to scan themselves; and the
			// second blocks.
			stopped := suspendG(gp)
			if stopped.dead {
				gp.gcscandone = true
				return
			}
			if gp.gcscandone {
				throw("g already scanned")
			}
			workDone += scanstack(gp, gcw)
			gp.gcscandone = true
			resumeG(stopped)

			if selfScan {
				casgstatus(userG, _Gwaiting, _Grunning)
			}
		})
	}

	12: "user defined signal 2",
	13: "broken pipe",
	14: "alarm clock",
	15: "terminated",
	16: "stack fault",
	17: "child exited",
	18: "continued",
	19: "stopped (signal)",
	20: "stopped",
	21: "stopped (tty input)",
	22: "stopped (tty output)",
	23: "urgent I/O condition",
	24: "CPU time limit exceeded",
	25: "file size limit exceeded",
	26: "virtual timer expired",
	27: "profiling timer expired",

	12: "bad system call",
	13: "broken pipe",
	14: "alarm clock",
	15: "terminated",
	16: "urgent I/O condition",
	17: "stopped (signal)",
	18: "stopped",
	19: "continued",
	20: "child exited",
	21: "stopped (tty input)",
	22: "stopped (tty output)",
	23: "I/O possible",
	24: "cputime limit exceeded",
	25: "filesize limit exceeded",
	26: "virtual timer expired",

	12: "user defined signal 2",
	13: "broken pipe",
	14: "alarm clock",
	15: "terminated",
	16: "stack fault",
	17: "child exited",
	18: "continued",
	19: "stopped (signal)",
	20: "stopped",
	21: "stopped (tty input)",
	22: "stopped (tty output)",
	23: "urgent I/O condition",
	24: "CPU time limit exceeded",
	25: "file size limit exceeded",
	26: "virtual timer expired",
	27: "profiling timer expired",