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annotate lib/localdisplay.py @ 924:4620a5d2f337

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comment Ignore-this: a0c7a9a99558eb8cc97a256a49e8d85a darcs-hash:20130922073241-312f9-f3cf457b94227246aac822f55a656f99536846f2
author drewp <drewp@bigasterisk.com>
date Sun, 22 Sep 2013 00:32:41 -0700
parents 2d055bce2e60
children 2f8ba398f958
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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886
2d055bce2e60 Xorg display number fetcher for use by xidle and dpms
drewp <drewp@bigasterisk.com>
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1 import psutil, os
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2
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3 def setDisplayToLocalX():
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4 """
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5 set DISPLAY env var in this process to the id of the X process on localhost
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4620a5d2f337 comment
drewp <drewp@bigasterisk.com>
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6
4620a5d2f337 comment
drewp <drewp@bigasterisk.com>
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7 I might need something like xauth merge /run/gdm/auth-for-gdm-xxxxxx/database too
4620a5d2f337 comment
drewp <drewp@bigasterisk.com>
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8 and this isn't automated yet
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2d055bce2e60 Xorg display number fetcher for use by xidle and dpms
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9 """
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10 for pid in psutil.get_pid_list():
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11 try:
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12 proc = psutil.Process(pid)
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13 if proc.exe not in ['/usr/bin/Xorg', '/usr/bin/X']:
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14 continue
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15 except (psutil.error.AccessDenied, psutil.error.NoSuchProcess):
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16 continue
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17 display = proc.cmdline[1]
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18 assert display.startswith(':'), display
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19 os.environ['DISPLAY'] = display
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20 break
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21 else:
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22 raise ValueError("didn't find an Xorg process")