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Use more accurate values for msg_ids

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Lonami Exo
2017-06-26 11:00:43 +02:00
parent aa7e8dba8a
commit b0173c3ec2
2 changed files with 19 additions and 34 deletions
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18
telethon/network/mtproto_plain_sender.py
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@@ -1,4 +1,3 @@
import random
import time
from ..extensions import BinaryReader, BinaryWriter
@@ -42,17 +41,12 @@ class MtProtoPlainSender:
return response
def _get_new_msg_id(self):
"""Generates a new message ID based on the current time (in ms) since epoch"""
# See https://core.telegram.org/mtproto/description#message-identifier-msg-id
ms_time = int(time.time() * 1000)
new_msg_id = (((ms_time // 1000) << 32)
| # "must approximately equal unix time*2^32"
((ms_time % 1000) << 22)
| # "approximate moment in time the message was created"
random.randint(0, 524288)
<< 2) # "message identifiers are divisible by 4"
# Ensure that we always return a message ID which is higher than the previous one
"""Generates a new message ID based on the current time since epoch"""
# See core.telegram.org/mtproto/description#message-identifier-msg-id
now = time.time()
nanoseconds = int((now - int(now)) * 1e+9)
# "message identifiers are divisible by 4"
new_msg_id = (int(now) << 32) | (nanoseconds << 2)
if self._last_msg_id >= new_msg_id:
new_msg_id = self._last_msg_id + 4