2
我正在使用urllib2监视Web套接字。我有以下的类,它处理连接到该网站,并接收响应:Python - 问题关闭线程
class Stream(Thread):
def __init__(self, connectCallback=None, **kwargs):
self.connectCallback = connectCallback
Thread.__init__(self)
def run(self):
self.running = True
while self.running:
try:
req = urllib2.Request(url, headers=self.headers)
req.add_data(self.body)
print "Stream connecting %s" % self
self.connectCallback(self)
f = urllib2.urlopen(req)
print "Stream connected %s" % self
while 1:
if self.running:
print "data receiving"
else:
f.close()
break
retry_time = self.retry_time
except (urllib2.URLError, urllib2.HTTPError), e:
print 'Exception: %s, retry in %f' % (e, retry_time)
time.sleep(retry_time)
retry_time *= 4.0
if retry_time > self.max_retry:
retry_time = self.max_retry
except Exception as err:
print 'Exception: %s' % err
print "Stream closed %s" % self
def disconnect(self):
print 'Disconnecting stream %s ' % self
if self.running is False:
return
self.running = False
self.join()
我希望能够异步运行我的Stream类的多个实例。这里是一个实例化流我的主类:
class Consumer(object):
def __init__(self):
try:
self.producer = self._open_stream()
while 1:
sleep(100)
except KeyboardInterrupt:
self.producer.disconnect()
sys.exit()
def onStreamConnect(self, instance):
print "STREAM CONNECTED %s " % instance
if getattr(self, 'new_producer', None):
self.producer.disconnect()
self.producer = instance
def onTrackChange(self):
print "TRACKS UPDATED"
self.new_producer = self._open_stream()
def _open_stream(self):
s = Stream(onStreamConnect)
s.start()
return s
if __name__ == "__main__":
c = Consumer()
这个伟大的工程的时候我只有一个流对象,脚本会干净地关闭。然而,当我打电话给我的onTrackChange()方法并建立多个连接时,线程永远不会关闭,运行循环似乎不会结束。
我确定我错过了一些明显的东西,但为什么它不能关闭流对象?