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EmoteManager/cogs/stats.py

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# © 2020 io mintz <io@mintz.cc>
#
# Emote Manager is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# Emote Manager 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with Emote Manager. If not, see <https://www.gnu.org/licenses/>.
from multiprocessing.shared_memory import ShareableList
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from discord.ext import commands
from bot_bin.stats import BotBinStats
class Stats(BotBinStats):
def __init__(self, bot):
super().__init__(bot)
seq = [0] * self.bot.shard_count if self.is_opener() else None
# Use our user ID as part of the shm name to allow running multiple instances of the bot on the same machine.
self.shlist = ShareableList(seq, name=f'emote-manager-{self.bot.user_id}')
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self.count()
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def is_opener(self):
"""return whether this is the process that should open the shared memory"""
return 0 in self.bot.shard_ids
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def is_reporter(self):
"""return whether we should report stats to the bot lists"""
return self.bot.shard_count - 1 in self.bot.shard_ids
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def cog_unload(self):
self.shlist.shm.close()
if self.is_opener():
self.shlist.shm.unlink()
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@commands.Cog.listener()
async def on_ready(self):
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self.count()
if self.is_reporter():
await self.send()
def count(self):
for shard_id in self.bot.shard_ids:
self.shlist[shard_id] = 0
for guild in self.bot.guilds:
self.shlist[guild.shard_id] += 1
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@commands.Cog.listener()
async def on_guild_join(self, guild):
self.shlist[guild.shard_id] += 1
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@commands.Cog.listener()
async def on_guild_remove(self, guild):
self.shlist[guild.shard_id] -= 1
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async def guild_count(self):
return sum(self.shlist)
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def setup(bot):
bot.add_cog(Stats(bot))