RE: pid leakage in LilyPond

[James Lowe]

Patrick,

Excuse my ignorance but what is 'interactive mode' in this context?

I use Mac OS X 10.5.8 with Lilypond 2.13.10 and the inbuilt Lilypond editor, 
and I cmd-s, cmd-r my way through a piece from scratch so that can be hundreds 
of these commands run concurrently in one session. I checked in Activity 
Monitor and I only ever get 2 PIDs as far as I can tell, one for the app itself 
and one when I hit cmd-r and while it is compiling. I don't see any state PIDs 
in Activity monitor nor in terminal running ps.

James


-----Original Message-----
From: address@hidden on behalf of Patrick Karl
Sent: Mon 01/02/2010 20:27
To: address@hidden
Subject: pid leakage in LilyPond
 
I have noticed a resource problem in LilyPond, namely invocation of  
the "Compile/Typeset file" command in interactive mode always  
consumes one more pid.  When I enter music, I incrementally compile  
it as I go.  I do my work on a Mac running OS 10.4.  There are a  
fixed number of pids available for all the programs running on the  
Mac.  This means that as I continue to incrementally compile in  
LilyPond, the number of available pids grows less, eventually running  
out.

If LilyPond were a C program, this behavior could be caused by  
executing an "exec" call to generate a child process but not later  
waiting for the child to complete.  This means that when the child  
process does complete, it becomes what is called a zombie or defunct  
pid.  I suspect something similar is happening in LilyPond.


_______________________________________________
lilypond-user mailing list
address@hidden
http://lists.gnu.org/mailman/listinfo/lilypond-user