threading

 

import time
import threading

errerLevel = 1
TOTAL_OK = 24
lineList = []

threadLock = threading.Lock()
threads = []

class myThread (threading.Thread):
    def __init__(self, index):
        threading.Thread.__init__(self)
        self.index = index
    def run(self):
        lineNumber = 0
        previous = -2
        total = 0
        with open(r'D:\kerneldump.bin', 'rb') as f:
            line = f.read(16)
            while line:
                b = [elem for elem in line]
                if b[self.index] - previous == errerLevel:
                    total = total + 1
                    if TOTAL_OK == total:                        
                        threadLock.acquire()
                        lineList.append((lineNumber - TOTAL_OK) * 16)
                        threadLock.release()
                        print(lineNumber - TOTAL_OK)
                        total = 0
                else:
                    total = 0
            
                previous = b[self.index]
                line = f.read(16)
                lineNumber = lineNumber + 1
 

if __name__ == "__main__":
    column = 16
    begin=time.time()
    for i in range(column):
        aThread = myThread(i)
        aThread.start()
        threads.append(aThread)

    for i in range(column):
        threads[i].join()

    print(lineList)    
    end=time.time()   
    print("cost time：", end-begin)