143     def __init__(self, ds, host_name, build_name,  argument
151         self.host_name = host_name
171             'host_name': host_name,
186                 self.pre_ping = ping_dut(self.host_name)
191         entry = make_entry(self.entry_id, self.host_name,
235                 self.post_ping = ping_dut(self.host_name)
293                              job.host_name, job.build_name,
317     def spawn(self, host_name, build_name):  argument
319         job = Job(self.ds, host_name, build_name,
321                   board=self.get_dut_board_type(host_name),
326                      job.entry_id[1], job.host_name, job.build_name)
327         self.last_versions[host_name] = build_name
335             host_name = self.find_idle_dut()
336             if host_name:
337                 build_name = self.find_build_for_dut(host_name)
338                 self.spawn(host_name, build_name)
352                              job.entry_id[1], job.host_name, job.build_name,
360                 if self.should_blacklist(job.host_name):
361                     logging.error('Blacklisting DUT %s', job.host_name)
362                     self.dut_blacklist.add(job.host_name)
367     def should_blacklist(self, host_name):  argument
369         jobs = [job for job in self.completed if job.host_name == host_name]
392         active_duts = {job.host_name for job in self.active}
397     def get_dut_board_type(self, host_name):  argument
399         return self.duts[host_name]
405     def find_build_for_dut(self, host_name):  argument
407         board = self.get_dut_board_type(host_name)
409         last_version = self.last_versions.get(host_name)
565         for host_name in runner.dut_blacklist:
566             logging.warn('  %s', host_name)