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#!/bin/env python
import sys
import uuid
import time
import signal
import logging
from argparse import ArgumentParser
from logging.handlers import RotatingFileHandler
from threading import Thread
class LoggerManager:
def __init__(self, args):
# KB to bytes
self.max_bytes = (args.size * 1000)
self.backup = args.backup
self.lines = args.lines
self.delay = args.delay
self.threads = []
# Create a thread for every writer
for f in args.filenames:
thread = Thread(target = self.single_logger_thread, args = (f,))
if thread is None:
print("error creating thread")
sys.exit(1)
self.threads.append(thread)
thread.start()
print("Logger thread for '" + f + "' has started")
for th in self.threads:
th.join()
print("Logger thread finished")
def single_logger_thread(self, name):
logger = logging.getLogger(name)
logger.setLevel(logging.DEBUG)
handler = RotatingFileHandler(name, maxBytes = self.max_bytes,
backupCount = self.backup)
logger.addHandler(handler)
rnd = uuid.uuid4()
i = 0
while i < self.lines:
logger.debug(rnd)
if self.delay > 0.0:
time.sleep(self.delay / 1000.0)
i = i + 1
def signal_handler(sig, frame):
print("stopping logger")
sys.exit(0)
if __name__ == '__main__':
signal.signal(signal.SIGINT, signal_handler)
# Define arguments
parser = ArgumentParser()
parser.add_argument("-b", "--backup", dest="backup", default=50, type=int)
parser.add_argument("-d", "--delay", dest="delay", default=0.1, type=float,
help="milliseconds delay between line writes")
parser.add_argument("-l", "--lines", dest="lines", default=1000, type=int)
parser.add_argument("-f", "--file", dest="filenames", action='append', required=True,
help="write logs to FILE", metavar="FILE")
parser.add_argument("-s", "--size", dest="size", type=int,
help="maximum log file size in KB before rotation",
default=256)
# Read arguments
args = parser.parse_args()
# Start the Logger
lm = LoggerManager(args)
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