fenrir/play-zone/parseProcessTree.py
2018-07-19 21:20:32 +02:00

54 lines
1.8 KiB
Python
Executable File

#!/bin/python
import os
import time
start = time.time()
pids = [pid for pid in os.listdir('/proc') if pid.isdigit()]
#pids = ['5960']
tty = os.open('/dev/tty2', os.O_RDWR)
fg = str(os.tcgetpgrp(tty))
tty.close()
print(fg)
for pid in pids:
try:
currStat = str(open('/proc/' + pid + '/stat', 'rb').read())
currStat = currStat.split(' ')
if int(currStat[4]) == 0:
continue
#print(currStat)
#print(fg,int(currStat[4]))
if fg == currStat[4]:
print(currStat[1])
#print( currStat )
#print(currStat[0])
major = os.major(int(currStat[6]))
minor = os.minor(int(currStat[6]))
ueventContent = open('/sys/dev/char/' + str(major) + ':' + str(minor) + '/uevent','r').read().split()
#print(ueventContent)
#print(int(currStat[4]),currStat[1])
except IOError: # proc has already terminated
continue
print(time.time()-start)
'''
Table 1-4: Contents of the stat files (as of 2.6.30-rc7)
..............................................................................
Field Content
pid process id
tcomm filename of the executable
state state (R is running, S is sleeping, D is sleeping in an
uninterruptible wait, Z is zombie, T is traced or stopped)
ppid process id of the parent process
pgrp pgrp of the process
sid session id
tty_nr tty the process uses
tty_pgrp pgrp of the tty
flags task flags
min_flt number of minor faults
cmin_flt number of minor faults with child's
maj_flt number of major faults
cmaj_flt number of major faults with child's
'''