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comparison lib/localdisplay.py @ 81:ef639d892e77
Xorg display number fetcher for use by xidle and dpms
Ignore-this: eaef4d7fa8277e88c65d83343a46f866
| author | drewp@bigasterisk.com |
|---|---|
| date | Wed, 29 May 2013 00:44:36 -0700 |
| parents | |
| children | 9155e9a605ec |
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| 80:855deb1509a5 | 81:ef639d892e77 |
|---|---|
| 1 import psutil, os | |
| 2 | |
| 3 def setDisplayToLocalX(): | |
| 4 """ | |
| 5 set DISPLAY env var in this process to the id of the X process on localhost | |
| 6 """ | |
| 7 for pid in psutil.get_pid_list(): | |
| 8 try: | |
| 9 proc = psutil.Process(pid) | |
| 10 if proc.exe not in ['/usr/bin/Xorg', '/usr/bin/X']: | |
| 11 continue | |
| 12 except (psutil.error.AccessDenied, psutil.error.NoSuchProcess): | |
| 13 continue | |
| 14 display = proc.cmdline[1] | |
| 15 assert display.startswith(':'), display | |
| 16 os.environ['DISPLAY'] = display | |
| 17 break | |
| 18 else: | |
| 19 raise ValueError("didn't find an Xorg process") |