def needsLock(base, logger):
	def waitLock():
		while True:
			try:
				base.doLock()
			except Errors.LockError, e:
				if "%s" %(e.msg,) != lockerr:
					lockerr = "%s" %(e.msg,)
					logger.critical(lockerr)
				logger.critical(_("Another app is currently holding the yum lock; waiting for it to exit..."))
				time.sleep(2)
			else:
				break


	def lockFun(f):
		def newFun(*args, **kw):
			waitLock()
			return f(*args, **kw)	
		return newFun
	return countFun