Python notes: Calculate delay time by WinDBG log

用WinDBG開Event Timestamps可以產生下面格式的log:

Fri Sep 21 18:43:50.946 2018 (UTC + 8:00): @#$#^$@#$^

以下python code用來找出兩個指定log中的時間差

import time

index = 0
entry_time_recorded = False

try:
    with open ('WinDBG.txt', 'rt') as in_file:  
        for line_num, line in enumerate(in_file):
            #print(line) #Fri Sep 21 18:43:50.946 2018 (UTC + 8:00): 
            index = line.find('DEBUG: _TMP entry')
            if index != -1:
                entry_time_str = line[0:19] + line[23:28]   
                entry_time = time.strptime(entry_time_str, "%a %b %d %H:%M:%S %Y")
                #print(entry_time)
                entry_time_recorded = True

            index = line.find('DEBUG: _TMP exit')
            if index != -1:
                exit_time_str = line[0:19] + line[23:28]
                exit_time = time.strptime(exit_time_str, "%a %b %d %H:%M:%S %Y")
                #print(exit_time)
                
                if entry_time_recorded:
                    entry_time_recorded = False
                    duration = time.mktime(exit_time) - time.mktime(entry_time)
                    if duration > 1:
                        print (duration)
                        print (str(line_num+1) + " ", line)
    print ("Search finish!")

except:
    print ("Cannot open file: WinDBG.txt")

input()