Mercurial > code > home > repos > homeauto
changeset 886:2d055bce2e60
Xorg display number fetcher for use by xidle and dpms
Ignore-this: eaef4d7fa8277e88c65d83343a46f866
darcs-hash:20130529074436-312f9-82b723dfcb487deee25ca2beab344631b09c0243
| author | drewp <drewp@bigasterisk.com> |
|---|---|
| date | Wed, 29 May 2013 00:44:36 -0700 |
| parents | 096ecee75e0b |
| children | 64a2ba088665 |
| files | lib/localdisplay.py |
| diffstat | 1 files changed, 19 insertions(+), 0 deletions(-) [+] |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lib/localdisplay.py Wed May 29 00:44:36 2013 -0700 @@ -0,0 +1,19 @@ +import psutil, os + +def setDisplayToLocalX(): + """ + set DISPLAY env var in this process to the id of the X process on localhost + """ + for pid in psutil.get_pid_list(): + try: + proc = psutil.Process(pid) + if proc.exe not in ['/usr/bin/Xorg', '/usr/bin/X']: + continue + except (psutil.error.AccessDenied, psutil.error.NoSuchProcess): + continue + display = proc.cmdline[1] + assert display.startswith(':'), display + os.environ['DISPLAY'] = display + break + else: + raise ValueError("didn't find an Xorg process")