(Windows) directly determine process exe instead of guessing it from cmdline

[giampaolo]

From g.rodola on June 29, 2012 05:31:20

As of right now on Windows we determine the process executable path by guessing 
it from the cmdline: 
https://code.google.com/p/psutil/source/browse/tags/release-0.5.0/psutil/_psmswindows.py#167

https://code.google.com/p/psutil/source/browse/tags/release-0.5.0/psutil/__init__.py#224
 This is unfortunate because cmdline raises AccessDenied for almost any process 
except the ones owned by the current user.
In r1394 I used GetProcessImageFileName() which fails less often and avoids the 
cmdline guessing.

Example script:

for p in sorted(psutil.process_iter(), key=lambda x: x.pid):
    print p.pid,
    try:
        print p.exe
    except psutil.AccessDenied, err:
        print 'AD'

===============================
Before
===============================

0 AD
4 AD
268 AD
300 AD
356 AD
392 AD
404 AD
432 AD
488 AD
504 AD
512 AD
540 C:\Users\user\AppData\Local\Google\Chrome\Application\chrome.exe
556 AD
616 AD
672 AD
700 AD
756 AD
852 AD
856 AD
876 AD
936 AD
1032 AD
1224 C:\Users\user\AppData\Local\Google\Chrome\Application\chrome.exe
1268 AD
1280 AD
1452 C:\Users\user\AppData\Local\Google\Chrome\Application\chrome.exe
1552 AD
1584 AD
1760 AD
1836 AD
1860 AD
1984 AD
2004 AD
2144 C:\Users\user\AppData\Local\Google\Chrome\Application\chrome.exe
2340 C:\Python27\python.exe
2808 C:\Users\user\AppData\Local\Google\Chrome\Application\chrome.exe
3012 AD



===============================
Now
===============================

0 AD
4 AD
268 AD
300 AD
356 AD
392 AD
404 AD
432 AD
488 AD
504 AD
512 AD
540 C:\Users\user\AppData\Local\Google\Chrome\Application\chrome.exe
556 AD
616 AD
672 AD
700 AD
756 AD
852 C:\Windows\System32\conhost.exe
856 C:\Windows\System32\cmd.exe
876 AD
936 AD
1032 AD
1224 C:\Users\user\AppData\Local\Google\Chrome\Application\chrome.exe
1268 C:\Program Files\TortoiseSVN\bin\TSVNCache.exe
1280 AD
1452 C:\Users\user\AppData\Local\Google\Chrome\Application\chrome.exe
1456 C:\Windows\System32\dllhost.exe
1468 C:\Python27\python.exe
1552 AD
1584 AD
1760 C:\Windows\System32\taskhost.exe
1836 C:\Windows\System32\dwm.exe
1860 C:\Windows\explorer.exe
1984 C:\Windows\System32\VBoxTray.exe
2004 C:\Program Files\TortoiseHg\TortoiseHgOverlayServer.exe
2144 C:\Users\user\AppData\Local\Google\Chrome\Application\chrome.exe
2808 C:\Users\user\AppData\Local\Google\Chrome\Application\chrome.exe
3012 C:\Users\user\Desktop\procexp64.exe

Original issue: http://code.google.com/p/psutil/issues/detail?id=293

[giampaolo]

From g.rodola on June 29, 2012 09:48:19

Labels: -Milestone-1.0.0 Milestone-0.5.1

[giampaolo]

From g.rodola on June 29, 2012 11:46:10

Status: Fixed

[giampaolo]

From g.rodola on March 02, 2013 04:09:55

Updated csets after the SVN -> Mercurial migration: r1394 == revision 
a8405e698412