[mythtv-commits] Ticket #2536: Realtime priority not enabled w/ realtime module (or bad log message)

[MythTV]

#2536: Realtime priority not enabled w/ realtime module (or bad log message)
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 Reporter:  rob+mythtv.org at rosenfeld.to  |        Owner:  danielk
     Type:  defect                       |       Status:  new    
 Priority:  trivial                      |    Milestone:  unknown
Component:  mythtv                       |      Version:  head   
 Severity:  low                          |   Resolution:         
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Comment (by sandeen-mythtv at sandeen.net):

 Oh should have checked this first :)

 It's the main thread dropping privs that does it - the sub-thread inherits
 the
 privs when the main thread drops it.

 If the main thread does this:

         rc = pthread_create(&thread_id, NULL, thread_main, NULL);
         sleep(2);
         setuid(getuid());
         sleep(2);

 and the sub-thread does this:

         printf("thread: uid %d euid %d\n", getuid(), geteuid());
         sleep(3);
         printf("thread: uid %d euid %d\n", getuid(), geteuid());

 then I get:

 main: uid 500 euid 0
 thread: uid 500 euid 0
 thread: uid 500 euid 500

 guess I need to read up on how pthreads work... not sure you can use them
 this way?

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Ticket URL: <http://svn.mythtv.org/trac/ticket/2536#comment:3>
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