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Attempt at not calling .connect for every file chunk

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This commit is contained in:
Lonami Exo 2017-10-14 12:02:30 +02:00
parent 9907d763a8
commit 280a700655
1 changed files with 27 additions and 7 deletions
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34
telethon/telegram_bare_client.py
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@ -416,11 +416,25 @@ class TelegramBareClient:
# region Invoking Telegram requests
def __call__(self, *requests, retries=5):
def _get_sender(self, on_main_thread=None):
"""Gets the appropriated sender based on the current thread"""
if on_main_thread is None:
on_main_thread = threading.get_ident() == self._main_thread_ident
if on_main_thread or self._on_read_thread():
sender = self._sender
else:
sender = self._sender.clone()
sender.connect()
return sender
def __call__(self, *requests, retries=5, sender=None):
"""Invokes (sends) a MTProtoRequest and returns (receives) its result.
The invoke will be retried up to 'retries' times before raising
ValueError().
If 'sender' is not None, it will override the sender to be used.
"""
if not all(isinstance(x, TLObject) and
x.content_related for x in requests):
@ -428,11 +442,7 @@ class TelegramBareClient:
# Determine the sender to be used (main or a new connection)
on_main_thread = threading.get_ident() == self._main_thread_ident
if on_main_thread or self._on_read_thread():
sender = self._sender
else:
sender = self._sender.clone()
sender.connect()
sender = sender or self._get_sender(on_main_thread=on_main_thread)
# We should call receive from this thread if there's no background
# thread reading or if the server disconnected us and we're trying
@ -686,6 +696,10 @@ class TelegramBareClient:
# The used client will change if FileMigrateError occurs
client = self
# TODO Keeping just another variable for a sender feels messy, improve.
# This is done not to call .connect() for every single piece of the
# file we'll be trying to download, if we were from another thread.
sender = self._get_sender()
cdn_decrypter = None
try:
@ -697,7 +711,7 @@ class TelegramBareClient:
else:
result = client(GetFileRequest(
input_location, offset, part_size
))
), sender=sender)
if isinstance(result, FileCdnRedirect):
cdn_decrypter, result = \
@ -706,7 +720,11 @@ class TelegramBareClient:
)
except FileMigrateError as e:
if sender != self._sender:
sender.disconnect()
client = self._get_exported_client(e.new_dc)
# Client connected on this thread -> uses the right sender
sender = None
continue
offset += part_size
@ -721,6 +739,8 @@ class TelegramBareClient:
if progress_callback:
progress_callback(f.tell(), file_size)
finally:
if sender != self._sender:
sender.disconnect()
if client != self:
client.disconnect()