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How to use _fd_drainer method in autotest

Best Python code snippet using autotest_python

process.py

Source:process.py

...266                signal.signal(signal.SIGINT, signal_handler)267            except ValueError:268                if self.verbose:269                    log.info("Command %s running on a thread", self.cmd)270    def _fd_drainer(self, input_pipe, ignore_bg_processes=False):271        """272        Read from input_pipe, storing and logging output.273        :param input_pipe: File like object to the stream.274        """275        stream_prefix = "%s"276        if input_pipe == self._popen.stdout:277            prefix = '[stdout] %s'278            if self.allow_output_check in ['none', 'stderr']:279                stream_logger = None280            else:281                stream_logger = log282            output_file = self.stdout_file283            lock = self.stdout_lock284        elif input_pipe == self._popen.stderr:...

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