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Fix deadlock

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This commit is contained in:
Cyber MacGeddon 2024-12-25 14:08:28 +00:00
parent 312561561e
commit 0a2cefe556
1 changed files with 12 additions and 1 deletions
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13
trustgraph-flow/trustgraph/gateway/mux.py
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@ -35,6 +35,7 @@ class MuxEndpoint(SocketEndpoint):
async def maybe_tidy_workers(self, workers):
while True:
try:
await asyncio.wait_for(
@ -44,7 +45,8 @@ class MuxEndpoint(SocketEndpoint):
# worker[0] now stopped
# FIXME: Delete reference???
del workers[0]
workers.pop(0)
if len(workers) == 0:
break
@ -57,6 +59,10 @@ class MuxEndpoint(SocketEndpoint):
async def start_request_task(self, ws, id, svc, request, workers):
if svc not in self.services:
await ws.send_json({"id": id, "error": "Service not recognised"})
return
requestor = self.services[svc]
async def responder(resp, fin):
@ -68,8 +74,13 @@ class MuxEndpoint(SocketEndpoint):
# Wait for outstanding requests to go below MAX_OUTSTANDING_REQUESTS
while len(workers) > MAX_OUTSTANDING_REQUESTS:
# Fixes deadlock
# FIXME: Put it in its own loop
await asyncio.sleep(START_REQUEST_WAIT)
await self.maybe_tidy_workers(workers)
worker = asyncio.create_task(
requestor.process(request, responder)
)