Ya, sorry 'bout that. We don't have an ETA we can talk about yet at
the moment though.
Once again, our apologize.
davez
On Apr 5, 2006, at 5:35 PM, Kevin Harris wrote:
I have hit a problem where I need to use waitid() to wait for a
process. I'm hoping someone can provide me with some information
about a workaround for Darwin. Searching through the list archives
didn't show anything useful, nor did my googles.
Here's my situation:
My program spawns processes and needs to be able to signal (for
termination purposes, if they don't quit on their own) the process
as well as any other process it has started (within the same process
group). It is not possible to use waitpid() on the process (or
process group), if the process has quit, as it will then become
unsafe to send a term or kill signal to that process group. This is
because of a potential race condition where another process may have
started with the same PID.
On other platforms, I am able to do a waitid() with the WNOWAIT
option, which will keep the process active so it remains safe to
send a signal to the entire process group. The process group
remains active with a member that needs waiting, even if it didn't
spawn any processes.
I have noticed that the headers have waitid(), but there is no
symbol present in any of the libraries on my system (10.4). My 10.3
system doesn't have the function listed in the headers at all.
Any help will be appreciated.
Thank you for your time.
-Kevin-
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