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Make disconnect synchronous

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This also fixes a bug when auto-reconnecting in MTProtoSender.
This commit is contained in:
Lonami Exo 2018-10-16 11:56:17 +02:00
parent 477fbd8dc7
commit 9cbc088b76
6 changed files with 28 additions and 34 deletions
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11
telethon/client/auth.py
View File

@ -398,7 +398,7 @@ class AuthMethods(MessageParseMethods, UserMethods):
self._self_input_peer = None
self._state.pts = -1
await self.disconnect()
self.disconnect()
self.session.delete()
return True
@ -489,14 +489,9 @@ class AuthMethods(MessageParseMethods, UserMethods):
return await self.start()
def __exit__(self, *args):
if self._loop.is_running():
self._loop.create_task(self.disconnect())
elif inspect.iscoroutinefunction(self.disconnect):
self._loop.run_until_complete(self.disconnect())
else:
self.disconnect()
self.disconnect()
async def __aexit__(self, *args):
await self.disconnect()
self.disconnect()
# endregion

2
telethon/client/downloads.py
View File

@ -268,7 +268,7 @@ class DownloadMethods(UserMethods):
if exported:
await self._return_exported_sender(sender)
elif sender != self._sender:
await sender.disconnect()
sender.disconnect()
if isinstance(file, str) or in_memory:
f.close()

30
telethon/client/telegrambaseclient.py
View File

@ -327,17 +327,25 @@ class TelegramBaseClient(abc.ABC):
sender = getattr(self, '_sender', None)
return sender and sender.is_connected()
async def disconnect(self):
def disconnect(self):
"""
Disconnects from Telegram.
Returns a dummy completed future with ``None`` as a result so
you can ``await`` this method just like every other method for
consistency or compatibility.
"""
await self._disconnect()
self._disconnect()
if getattr(self, 'session', None):
if getattr(self, '_state', None):
self.session.set_update_state(0, self._state)
self.session.close()
async def _disconnect(self):
result = self._loop.create_future()
result.set_result(None)
return result
def _disconnect(self):
"""
Disconnect only, without closing the session. Used in reconnections
to different data centers, where we don't want to close the session
@ -347,24 +355,20 @@ class TelegramBaseClient(abc.ABC):
# All properties may be ``None`` if `__init__` fails, and this
# method will be called from `__del__` which would crash then.
if getattr(self, '_sender', None):
await self._sender.disconnect()
self._sender.disconnect()
if getattr(self, '_updates_handle', None):
await self._updates_handle
self._updates_handle.cancel()
def __del__(self):
if not self.is_connected() or self.loop.is_closed():
return
# READ THIS IF DISCONNECT IS ASYNC AND A TASK WOULD BE MADE.
# Python 3.5.2's ``asyncio`` mod seems to have a bug where it's not
# able to close the pending tasks properly, and letting the script
# complete without calling disconnect causes the script to trigger
# 100% CPU load. Call disconnect to make sure it doesn't happen.
if not inspect.iscoroutinefunction(self.disconnect):
self.disconnect()
elif self._loop.is_running():
self._loop.create_task(self.disconnect())
else:
self._loop.run_until_complete(self.disconnect())
self.disconnect()
async def _switch_dc(self, new_dc):
"""
@ -378,7 +382,7 @@ class TelegramBaseClient(abc.ABC):
# so it's not valid anymore. Set to None to force recreating it.
self.session.auth_key = None
self.session.save()
await self._disconnect()
self._disconnect()
return await self.connect()
async def _auth_key_callback(self, auth_key):
@ -466,7 +470,7 @@ class TelegramBaseClient(abc.ABC):
self._borrowed_senders[dc_id] = (n, sender)
if not n:
__log__.info('Disconnecting borrowed sender for DC %d', dc_id)
await sender.disconnect()
sender.disconnect()
async def _get_cdn_client(self, cdn_redirect):
"""Similar to ._borrow_exported_client, but for CDNs"""

11
telethon/client/updates.py
View File

@ -20,7 +20,7 @@ class UpdateMethods(UserMethods):
try:
await self.disconnected
except KeyboardInterrupt:
await self.disconnect()
self.disconnect()
def run_until_disconnected(self):
"""
@ -37,12 +37,7 @@ class UpdateMethods(UserMethods):
try:
return self.loop.run_until_complete(self.disconnected)
except KeyboardInterrupt:
# Importing the magic sync module turns disconnect into sync.
# TODO Maybe disconnect() should not need the magic module...
if inspect.iscoroutinefunction(self.disconnect):
self.loop.run_until_complete(self.disconnect())
else:
self.disconnect()
self.disconnect()
def on(self, event):
"""
@ -223,7 +218,7 @@ class UpdateMethods(UserMethods):
except asyncio.TimeoutError:
pass
except asyncio.CancelledError:
await self.disconnect()
self.disconnect()
return
except Exception as e:
continue # Any disconnected exception should be ignored

6
telethon/network/mtprotosender.py
View File

@ -119,7 +119,7 @@ class MTProtoSender:
def is_connected(self):
return self._user_connected
async def disconnect(self):
def disconnect(self):
"""
Cleanly disconnects the instance from the network, cancels
all pending requests, and closes the send and receive loops.
@ -223,7 +223,7 @@ class MTProtoSender:
else:
e = ConnectionError('auth_key generation failed {} times'
.format(self._retries))
await self._disconnect(error=e)
self._disconnect(error=e)
raise e
__log__.debug('Starting send loop')
@ -310,7 +310,7 @@ class MTProtoSender:
break
else:
__log__.error('Failed to reconnect automatically.')
await self._disconnect(error=ConnectionError())
self._disconnect(error=ConnectionError())
def _start_reconnect(self):
"""Starts a reconnection in the background."""

2
telethon_examples/gui.py
View File

@ -365,7 +365,7 @@ async def main(loop, interval=0.05):
if 'application has been destroyed' not in e.args[0]:
raise
finally:
await app.cl.disconnect()
app.cl.disconnect()
if __name__ == "__main__":