mirror of
https://github.com/theroyallab/tabbyAPI.git
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56 lines
1.4 KiB
Python
56 lines
1.4 KiB
Python
import asyncio
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import signal
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import sys
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from common.logger import xlogger
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from types import FrameType
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SHUTTING_DOWN: bool = False
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def signal_handler(*_):
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"""Signal handler for main function. Run before uvicorn starts."""
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global SHUTTING_DOWN
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if SHUTTING_DOWN:
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return
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xlogger.warning("Shutdown signal called. Exiting gracefully.")
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SHUTTING_DOWN = True
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# Run async unloads for model
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# If an event loop doesn't exist (synchronous), exit.
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try:
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loop = asyncio.get_running_loop()
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loop.run_until_complete(signal_handler_async())
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except RuntimeError:
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sys.exit(0)
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async def signal_handler_async():
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from common import model
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"""
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Internal signal handler. Runs all async code to shut down the program.
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asyncio.run will cancel all remaining tasks and close the event loop.
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"""
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if model.container:
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await model.unload_model(skip_wait=True, shutdown=True)
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if model.embeddings_container:
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await model.unload_embedding_model()
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def uvicorn_signal_handler(signal_event: signal.Signals):
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"""Overrides uvicorn's signal handler."""
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default_signal_handler = signal.getsignal(signal_event)
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def wrapped_handler(signum: int, frame: FrameType = None):
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xlogger.warning("Shutdown signal called. Exiting gracefully.")
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default_signal_handler(signum, frame)
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signal.signal(signal_event, wrapped_handler)
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