74 lines
2.0 KiB
Python
74 lines
2.0 KiB
Python
#!/usr/bin/env python
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# Copyright 2024 The HuggingFace Inc. team.
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# All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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import signal
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import sys
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from queue import Empty
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from torch.multiprocessing import Queue
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shutdown_event_counter = 0
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def setup_process_handlers(use_threads: bool) -> any:
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if use_threads:
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from threading import Event
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else:
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from multiprocessing import Event
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shutdown_event = Event()
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# Define signal handler
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def signal_handler(signum, frame):
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logging.info("Shutdown signal received. Cleaning up...")
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shutdown_event.set()
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global shutdown_event_counter
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shutdown_event_counter += 1
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if shutdown_event_counter > 1:
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logging.info("Force shutdown")
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sys.exit(1)
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signal.signal(signal.SIGINT, signal_handler) # Ctrl+C
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signal.signal(signal.SIGTERM, signal_handler) # Termination request (kill)
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signal.signal(signal.SIGHUP, signal_handler) # Terminal closed/Hangup
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signal.signal(signal.SIGQUIT, signal_handler) # Ctrl+\
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def signal_handler(signum, frame):
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logging.info("Shutdown signal received. Cleaning up...")
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shutdown_event.set()
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return shutdown_event
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def get_last_item_from_queue(queue: Queue):
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item = queue.get()
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counter = 1
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# Drain queue and keep only the most recent parameters
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try:
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while True:
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item = queue.get_nowait()
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counter += 1
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except Empty:
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pass
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logging.debug(f"Drained {counter} items from queue")
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return item
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