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comparison python/process.py @ 178:fa94f0b4459d

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add python ps
author Jeff Hammel <jhammel@mozilla.com>
date Tue, 08 Nov 2011 12:08:11 -0800
parents
children a5061b41a781
comparison
equal deleted inserted replaced
177:6ae566bb1a99 178:fa94f0b4459d
1 import os
2 import shlex
3 import subprocess
4 import sys
5
6 def ps():
7 retval = []
8 process = subprocess.Popen(['ps', 'axwww'], stdout=subprocess.PIPE)
9 stdout, _ = process.communicate()
10 header = None
11 for line in stdout.splitlines():
12 line = line.strip()
13 if header is None:
14 # first line is the header
15 header = line.split()
16 continue
17 split = line.split(None, len(header)-1)
18 process_dict = dict(zip(header, split))
19 retval.append(process_dict)
20 return retval
21
22 def running_processes(name):
23 """
24 returns a list of
25 {'PID': PID of process (int)
26 'command': command line of process (list)}
27 with the executable named `name`
28 """
29 retval = []
30 for process in ps():
31 command = process['COMMAND']
32 command = shlex.split(command)
33 prog = command[0]
34 basename = os.path.basename(prog)
35 if basename == name:
36 retval.append((int(process['PID']), command))
37 return retval
38
39 if __name__ == '__main__':
40 for arg in sys.argv[1:]:
41 processes = running_processes(arg)
42 for pid, command in processes:
43 print '%s %s : %s' % (pid, arg, command)