替换gevent.spawn_link_exception

Question

这个旧代码调用不再存在的gevent.spawn_link_exception：

def start(self, checkpoint=None):
    for gl in self._greenlets:
        gl.kill()
    self.load_config()
    self._greenlets = [
        gevent.spawn_link_exception(self.periodic_checkpoint, 5) ]
    for master_uri in self._config:
        self._greenlets.append(
            gevent.spawn_link_exception(
                self.replicate, master_uri, checkpoint))

请帮助我更新这段代码，以便它与最新版本的gevent一起工作。谢谢。

Answer 1

您可以通过Greenlet.link_exception方法来处理相同的事情。下面是您修改的示例：

  def start(self, checkpoint=None):
      for gl in self._greenlets:
          gl.kill()
      self.load_config()

      def exception_callback(greenlet):
          print "Exception happened in ", greenlet

      self._greenlets = [gevent.spawn(self.periodic_checkpoint, 5)]
      self._greenlets[-1].link_exception(exception_callback)

      for master_uri in self._config:
          self._greenlets.append(gevent.spawn(self.replicate, master_uri, checkpoint))
          self._greenlets[-1].link_exception(exception_callback)