def _trampoline(self,
fd,
read=False,
write=False,
timeout=None,
timeout_exc=None):
""" We need to trampoline via the event hub.
We catch any signal back from the hub indicating that the operation we
were waiting on was associated with a filehandle that's since been
invalidated.
"""
if self._closed:
# If we did any logging, alerting to a second trampoline attempt on a closed
# socket here would be useful.
raise IOClosed()
try:
return trampoline(fd,
read=read,
write=write,
timeout=timeout,
timeout_exc=timeout_exc,
mark_as_closed=self._mark_as_closed)
except IOClosed:
# This socket's been obsoleted. De-fang it.
self._mark_as_closed()
raise
def close_one(self):
""" Triggered from the apis run loop. If a listener's underlying FD was
closed somehow, throw an exception back to the trampoline, which should
be able to manage it appropriately.
"""
listener = self.closed.pop()
if not listener.greenlet.dead:
# There's no point signalling a greenlet that's already dead.
listener.tb(IOClosed(errno.ENOTCONN, "Operation on closed file"))
def _trampoline(self, fd, read=False, write=False, timeout=None, timeout_exc=None):
if self._closed:
# Don't trampoline if we're already closed.
raise IOClosed()
try:
return trampoline(fd, read=read, write=write, timeout=timeout,
timeout_exc=timeout_exc,
mark_as_closed=self._mark_as_closed)
except IOClosed:
# Our fileno has been obsoleted. Defang ourselves to
# prevent spurious closes.
self._mark_as_closed()
raise
def _trampoline(self, **kw):
""" We need to trampoline via the event hub.
We catch any signal back from the hub indicating that the operation we
were waiting on was associated with a filehandle that's since been
invalidated.
"""
# todo, listener == self
if self._closed:
# If we did any logging, alerting to a second trampoline attempt on a closed
# socket here would be useful.
raise IOClosed()
try:
kw['mark_as_closed'] = self._mark_as_closed
return trampoline(self.fd, **kw)
except IOClosed:
# This socket's been obsoleted. De-fang it.
self._mark_as_closed()
raise