Mercurial > hg > config
annotate python/process.py @ 498:95ba5770d2f0
file decorator
| author | Jeff Hammel <jhammel@mozilla.com> |
|---|---|
| date | Wed, 21 Aug 2013 15:54:09 -0700 |
| parents | 748c232c0af3 |
| children | 581436742074 |
| rev | line source |
|---|---|
| 178 | 1 import os |
| 2 import shlex | |
| 3 import subprocess | |
| 4 import sys | |
| 5 | |
| 179 | 6 def ps(arg='axwww'): |
| 180 | 7 """ |
| 8 python front-end to `ps` | |
| 9 http://en.wikipedia.org/wiki/Ps_%28Unix%29 | |
| 10 returns a list of process dicts based on the `ps` header | |
| 11 """ | |
| 178 | 12 retval = [] |
| 179 | 13 process = subprocess.Popen(['ps', arg], stdout=subprocess.PIPE) |
| 178 | 14 stdout, _ = process.communicate() |
| 15 header = None | |
| 16 for line in stdout.splitlines(): | |
| 17 line = line.strip() | |
| 18 if header is None: | |
| 19 # first line is the header | |
| 20 header = line.split() | |
| 21 continue | |
| 22 split = line.split(None, len(header)-1) | |
| 23 process_dict = dict(zip(header, split)) | |
| 24 retval.append(process_dict) | |
| 25 return retval | |
| 26 | |
|
183
748c232c0af3
update to process examiner
Jeff Hammel <jhammel@mozilla.com>
parents:
182
diff
changeset
|
27 def running_processes(name, psarg='axwww', defunct=True): |
| 178 | 28 """ |
| 182 | 29 returns a list of 2-tuples of running processes: |
| 30 (pid, ['path/to/executable', 'args', '...']) | |
| 180 | 31 with the executable named `name`. |
| 32 - defunct: whether to return defunct processes | |
| 178 | 33 """ |
| 34 retval = [] | |
|
183
748c232c0af3
update to process examiner
Jeff Hammel <jhammel@mozilla.com>
parents:
182
diff
changeset
|
35 for process in ps(psarg): |
| 178 | 36 command = process['COMMAND'] |
| 37 command = shlex.split(command) | |
| 180 | 38 if command[-1] == '<defunct>': |
| 39 command = command[:-1] | |
| 40 if not command or not defunct: | |
| 41 continue | |
| 178 | 42 prog = command[0] |
| 43 basename = os.path.basename(prog) | |
| 44 if basename == name: | |
| 45 retval.append((int(process['PID']), command)) | |
| 46 return retval | |
| 47 | |
| 48 if __name__ == '__main__': | |
| 49 for arg in sys.argv[1:]: | |
| 50 processes = running_processes(arg) | |
| 51 for pid, command in processes: | |
| 52 print '%s %s : %s' % (pid, arg, command) |