v1.3.5
This commit is contained in:
@@ -0,0 +1,76 @@
|
||||
########################################################################
|
||||
# File name: custom_queue.py
|
||||
# This file is part of: aioxmpp
|
||||
#
|
||||
# LICENSE
|
||||
#
|
||||
# This program is free software: you can redistribute it and/or modify
|
||||
# it under the terms of the GNU Lesser General Public License as
|
||||
# published by the Free Software Foundation, either version 3 of the
|
||||
# License, or (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful, but
|
||||
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
# Lesser General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU Lesser General Public
|
||||
# License along with this program. If not, see
|
||||
# <http://www.gnu.org/licenses/>.
|
||||
#
|
||||
########################################################################
|
||||
import asyncio
|
||||
import collections
|
||||
|
||||
|
||||
class AsyncDeque:
|
||||
def __init__(self, *, loop=None):
|
||||
super().__init__()
|
||||
self._loop = loop
|
||||
self._data = collections.deque()
|
||||
self._non_empty = asyncio.Event()
|
||||
self._non_empty.clear()
|
||||
|
||||
def __len__(self):
|
||||
return len(self._data)
|
||||
|
||||
def __contains__(self, obj):
|
||||
return obj in self._data
|
||||
|
||||
def empty(self):
|
||||
return not self._non_empty.is_set()
|
||||
|
||||
def put_nowait(self, obj):
|
||||
self._data.append(obj)
|
||||
self._non_empty.set()
|
||||
|
||||
def putleft_nowait(self, obj):
|
||||
self._data.appendleft(obj)
|
||||
self._non_empty.set()
|
||||
|
||||
def get_nowait(self):
|
||||
try:
|
||||
item = self._data.popleft()
|
||||
except IndexError:
|
||||
raise asyncio.QueueEmpty() from None
|
||||
if not self._data:
|
||||
self._non_empty.clear()
|
||||
return item
|
||||
|
||||
def getright_nowait(self):
|
||||
try:
|
||||
item = self._data.pop()
|
||||
except IndexError:
|
||||
raise asyncio.QueueEmpty() from None
|
||||
if not self._data:
|
||||
self._non_empty.clear()
|
||||
return item
|
||||
|
||||
async def get(self):
|
||||
while not self._data:
|
||||
await self._non_empty.wait()
|
||||
return self.get_nowait()
|
||||
|
||||
def clear(self):
|
||||
self._data.clear()
|
||||
self._non_empty.clear()
|
||||
Reference in New Issue
Block a user