/
defrag.py
executable file
·67 lines (52 loc) · 1.88 KB
/
defrag.py
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#!/usr/bin/env python
'''
Defrag
CUSEC Coding Competition
Waterloo Software Engineering
@author Michael Chang, Alice Yuan, Joshua Kaplin, Aaron Morais
'''
import defrag_scorer
from strategy import *
class TimeoutException(Exception):
pass
if __name__ == '__main__':
import argparse
import signal
def timeout_handler(signum, frame):
raise TimeoutException()
parser = argparse.ArgumentParser(
description='defragments a fictional file system'
)
parser.add_argument(
'--input',
required=False,
help='Input file for the disk (if not specified, will read from disk.txt)'
)
args = parser.parse_args()
signal.signal(signal.SIGALRM, timeout_handler)
signal.alarm(295) # five minutes, minus a five second buffer
# signal.alarm(30)
try:
inputFilename = 'disk.txt' if args.input == None else args.input
strategies = []
#strategies.append(BaseStrategy.BaseStrategy())
strategies.append(MoveToFrontStrategy.MoveToFrontStrategy())
strategies.append(MoveToEndStrategy.MoveToEndStrategy())
strategies.append(QuickSortBaseStrategy.QuickSortBaseStrategy())
# strategies.append(SleepStrategy.SleepStrategy())
bestResult = []
disk = defrag_scorer.loadDisk(inputFilename)
bestScore = defrag_scorer.calculateScore(disk)
for strategy in strategies:
disk = defrag_scorer.loadDisk(inputFilename)
final_disk = strategy.calculate(disk)
result = strategy.result()
score = defrag_scorer.calculateScore(final_disk)
if score > bestScore or len(result) < len(bestResult):
bestResult = result
bestScore = score
except TimeoutException:
pass; # fall through to returning the result
# output
for line in bestResult:
print line