+++ /dev/null
-import errno
-import sys
-from eventlet import patcher
-from eventlet.support import get_errno, clear_sys_exc_info
-select = patcher.original('select')
-time = patcher.original('time')
-
-from eventlet.hubs.hub import BaseHub, READ, WRITE, noop
-
-try:
- BAD_SOCK = set((errno.EBADF, errno.WSAENOTSOCK))
-except AttributeError:
- BAD_SOCK = set((errno.EBADF,))
-
-
-class Hub(BaseHub):
- def _remove_bad_fds(self):
- """ Iterate through fds, removing the ones that are bad per the
- operating system.
- """
- all_fds = list(self.listeners[READ]) + list(self.listeners[WRITE])
- for fd in all_fds:
- try:
- select.select([fd], [], [], 0)
- except select.error as e:
- if get_errno(e) in BAD_SOCK:
- self.remove_descriptor(fd)
-
- def wait(self, seconds=None):
- readers = self.listeners[READ]
- writers = self.listeners[WRITE]
- if not readers and not writers:
- if seconds:
- time.sleep(seconds)
- return
- all_fds = list(readers) + list(writers)
- try:
- r, w, er = select.select(readers.keys(), writers.keys(), all_fds, seconds)
- except select.error as e:
- if get_errno(e) == errno.EINTR:
- return
- elif get_errno(e) in BAD_SOCK:
- self._remove_bad_fds()
- return
- else:
- raise
-
- for fileno in er:
- readers.get(fileno, noop).cb(fileno)
- writers.get(fileno, noop).cb(fileno)
-
- for listeners, events in ((readers, r), (writers, w)):
- for fileno in events:
- try:
- listeners.get(fileno, noop).cb(fileno)
- except self.SYSTEM_EXCEPTIONS:
- raise
- except:
- self.squelch_exception(fileno, sys.exc_info())
- clear_sys_exc_info()