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filtermail: run CPU-intensive handle_DATA in a thread pool executor

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See
<https://docs.python.org/3/library/asyncio-eventloop.html#executing-code-in-thread-or-process-pools>
for the documentation.

This should avoid processing of large messages from hogging asyncio
thread and delaying async operations like accepting new connections.
This commit is contained in:
link2xt
2025-10-18 20:59:13 +00:00
committed by l
parent e37dd5153a
commit 2b90f7db37
2 changed files with 11 additions and 0 deletions
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8
chatmaild/src/chatmaild/filtermail.py
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@@ -241,6 +241,10 @@ class OutgoingBeforeQueueHandler:
return "250 OK"
async def handle_DATA(self, server, session, envelope):
loop = asyncio.get_running_loop()
return await loop.run_in_executor(None, self.sync_handle_DATA, envelope)
def sync_handle_DATA(self, envelope):
log_info("handle_DATA before-queue")
error = self.check_DATA(envelope)
if error:
@@ -294,6 +298,10 @@ class IncomingBeforeQueueHandler:
self.config = config
async def handle_DATA(self, server, session, envelope):
loop = asyncio.get_running_loop()
return await loop.run_in_executor(None, self.sync_handle_DATA, envelope)
def sync_handle_DATA(self, envelope):
log_info("handle_DATA before-queue")
error = self.check_DATA(envelope)
if error: