How to use _start_threads method in autotest

Best Python code snippet using autotest_python

threads.py

Source:threads.py

...13        self.threads = Queue.Queue(0)14        self.function = function15        self.numthreads = 016        self.queue = Queue.Queue(0)17        self._start_threads(numthreads)18    def wait(self):19        """ Checks to see if any threads are still working and20            blocks until worker threads all complete. """21        for x in xrange(self.numthreads):22            self.queue.put('die')23        # As only spawned threads are allowed to add new ones,24        # we can safely wait for the thread queue to be empty25        # (if we're at the last thread and it creates a new one,26        # it will get queued before it finishes).27        dead = 028        while True:29            try:30                thread = self.threads.get(block=True, timeout=1)31                if thread.isAlive():32                    thread.join()33                dead += 134            except Queue.Empty:35                assert(dead == self.numthreads)36                return37    def queue_work(self, data):38        """ Takes a list of items and appends them to the39            work queue. """40        [self.queue.put(item) for item in data]41    def add_one_thread_post_wait(self):42        # Only a spawned thread (not the main one)43        # should call this (see wait() for details)44        self._start_threads(1)45        self.queue.put('die')46    def _start_threads(self, nthreads):47        """ Start up threads to spawn workers. """48        self.numthreads += nthreads49        for i in xrange(nthreads):50            thread = threading.Thread(target=self._new_worker)51            thread.setDaemon(True)52            self.threads.put(thread)53            thread.start()54    def _new_worker(self):55        """ Spawned worker threads. These threads loop until queue is empty."""56        while True:57            # Blocking call58            data = self.queue.get()59            if data == 'die':60                return...

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