81 lines
1.7 KiB
Python
81 lines
1.7 KiB
Python
import time
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import math
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from datetime import datetime
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import struct
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import sys
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import os, fnmatch
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import argparse
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from time import sleep
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def readLogFile(filename, verbose = True):
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f = open(filename, 'rb')
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print('Opened'),
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print(filename)
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keys = f.readline().decode('utf8').rstrip('\n').split(',')
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fmt = f.readline().decode('utf8').rstrip('\n')
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# The byte number of one record
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sz = struct.calcsize(fmt)
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# The type number of one record
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ncols = len(fmt)
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if verbose:
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print('Keys:'),
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print(keys)
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print('Format:'),
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print(fmt)
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print('Size:'),
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print(sz)
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print('Columns:'),
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print(ncols)
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lenChunk = sz
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log = list()
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chunkIndex = 0
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while (lenChunk):
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check = f.read(2)
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lenChunk = 0
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if (check == b'\xaa\xbb'):
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mychunk = f.read(sz)
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lenChunk = len(mychunk)
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chunks = [mychunk]
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if verbose:
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print("num chunks:")
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print(len(chunks))
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for chunk in chunks:
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print("len(chunk)=",len(chunk)," sz = ", sz)
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if len(chunk) == sz:
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print("chunk #",chunkIndex)
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chunkIndex=chunkIndex+1
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values = struct.unpack(fmt, chunk)
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record = list()
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for i in range(ncols):
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record.append(values[i])
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if verbose:
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print(" ",keys[i],"=",values[i])
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log.append(record)
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else:
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print("Error, expected aabb terminal")
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return log
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numArgs = len(sys.argv)
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print ('Number of arguments:', numArgs, 'arguments.')
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print ('Argument List:', str(sys.argv))
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fileName = "log.bin"
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if (numArgs>1):
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fileName = sys.argv[1]
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print("filename=")
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print(fileName)
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verbose = True
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readLogFile(fileName,verbose)
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