This is the mail archive of the cygwin mailing list for the Cygwin project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

trying to get the process id for a spawned process to wait for it


Hi - I'm trying to launch a set number of threads, 
wait for them to finish, launch another set of 
threads, wait and repeat until there's no more input.

so - I've got this (this is in the middle 
of a loop reading a file):

Jobs=$Jobs + 1

/tibcoresources/appmanage.exe <<lots of params>> &

PID=$!

echo $PID is the process

if [[ $Jobs -gt 2 ]]
then
{
	echo pausing
	wait $PID
	Jobs=0
	echo starting
}
fi

But - I don't get anything back from $! 
so the wait doesn't wait and I end up 
launching a bunch of processes and taking 
down the server, etc, etc, etc.

What am I doing wrong here? 

--woody


--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]