process.py 文件源码

def close_fds(self, exclude):
        if type(exclude) != list:
            raise Exception('exclude is not a list: %s' % exclude)
        for i in exclude:
            if type(i) != int:
                raise Exception('exclude is not a list of int: %s' % exclude)
        # close all file descriptors except 0,1,2, whatever file descriptor is
        # connected to /dev/ptmx, and whatever the subclass wants to keep open.
        exclude.extend([0,1,2])
        for fd in self.list_fds().keys():
            if fd in exclude:
                continue
            try:
                os.close(fd)
            except OSError, e:
                if e.errno == errno.EBADF:
                    continue
                raise