43 lines
1.4 KiB
Python
43 lines
1.4 KiB
Python
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import logging
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import threading
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import time
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class TimeoutSwitchingFileHandler(logging.Handler):
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def __init__(self, filename, min_timeout=60, max_timeout=3600):
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super().__init__()
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self.basename = filename
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self.min_timeout = min_timeout
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self.max_timeout = max_timeout
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self.fh = None
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self.last_emit = 0
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self.first_emit = 0
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self.last_emit = 0
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cleanup = threading.Thread(target=self.cleanup_loop, daemon=True)
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cleanup.start()
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def emit(self, record):
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msg = self.format(record)
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now = time.time()
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if not self.fh:
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now_tm = time.localtime(now)
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filename = self.basename + time.strftime("%Y-%m-%d-%H-%M-%S", now_tm) + "-%06d" % (now % 1 * 1000000) + ".log"
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self.fh = open(filename, "a")
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self.first_emit = now
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self.fh.write(msg)
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self.fh.write("\n")
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self.fh.flush()
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self.last_emit = now
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def cleanup_loop(self):
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while True:
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time.sleep(1)
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self.acquire()
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now = time.time()
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if self.fh and now - self.last_emit > self.min_timeout:
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self.fh.close()
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self.fh = None
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if self.fh and now - self.first_emit > self.max_timeout:
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self.fh.close()
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self.fh = None
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self.release()
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