3 from eventlet import patcher
4 from eventlet.support import get_errno, clear_sys_exc_info
5 select = patcher.original('select')
6 time = patcher.original('time')
8 from eventlet.hubs.hub import BaseHub, READ, WRITE, noop
11 BAD_SOCK = set((errno.EBADF, errno.WSAENOTSOCK))
12 except AttributeError:
13 BAD_SOCK = set((errno.EBADF,))
17 def _remove_bad_fds(self):
18 """ Iterate through fds, removing the ones that are bad per the
21 all_fds = list(self.listeners[READ]) + list(self.listeners[WRITE])
24 select.select([fd], [], [], 0)
25 except select.error as e:
26 if get_errno(e) in BAD_SOCK:
27 self.remove_descriptor(fd)
29 def wait(self, seconds=None):
30 readers = self.listeners[READ]
31 writers = self.listeners[WRITE]
32 if not readers and not writers:
36 all_fds = list(readers) + list(writers)
38 r, w, er = select.select(readers.keys(), writers.keys(), all_fds, seconds)
39 except select.error as e:
40 if get_errno(e) == errno.EINTR:
42 elif get_errno(e) in BAD_SOCK:
43 self._remove_bad_fds()
49 readers.get(fileno, noop).cb(fileno)
50 writers.get(fileno, noop).cb(fileno)
52 for listeners, events in ((readers, r), (writers, w)):
55 listeners.get(fileno, noop).cb(fileno)
56 except self.SYSTEM_EXCEPTIONS:
59 self.squelch_exception(fileno, sys.exc_info())