| # |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| # |
| |
| from __future__ import absolute_import |
| |
| |
| from ._events import Event |
| from ._io import PN_INVALID_SOCKET |
| |
| |
| class Selectable(object): |
| |
| def __init__(self, delegate, reactor): |
| self._delegate = delegate |
| self.reading = False |
| self.writing = False |
| self._deadline = 0 |
| self._terminal = False |
| self._released = False |
| self._terminated = False |
| self._reactor = reactor |
| self.push_event(self, Event.SELECTABLE_INIT) |
| |
| def close(self): |
| if self._delegate and not self._released: |
| self._delegate.close() |
| |
| def fileno(self): |
| if self._delegate: |
| return self._delegate.fileno() |
| else: |
| return PN_INVALID_SOCKET |
| |
| def __getattr__(self, name): |
| return getattr(self._delegate, name) |
| |
| def _get_deadline(self): |
| tstamp = self._deadline |
| if tstamp: |
| return tstamp |
| else: |
| return None |
| |
| def _set_deadline(self, deadline): |
| if not deadline: |
| self._deadline = 0 |
| else: |
| self._deadline = deadline |
| |
| deadline = property(_get_deadline, _set_deadline) |
| |
| def push_event(self, context, etype): |
| self._reactor.push_event(context, etype) |
| |
| def update(self): |
| if not self._terminated: |
| if self._terminal: |
| self._terminated = True |
| self.push_event(self, Event.SELECTABLE_FINAL) |
| else: |
| self.push_event(self, Event.SELECTABLE_UPDATED) |
| |
| def readable(self): |
| self.push_event(self, Event.SELECTABLE_READABLE) |
| |
| def writable(self): |
| self.push_event(self, Event.SELECTABLE_WRITABLE) |
| |
| def expired(self): |
| self.push_event(self, Event.SELECTABLE_EXPIRED) |
| |
| @property |
| def is_terminal(self): |
| return self._terminal |
| |
| def terminate(self): |
| self._terminal = True |
| |
| def release(self): |
| self._released = True |
