Re: Running Calibre in background by skill

Hi There !

If I well understood your description, you don't seem to be interested
in communicating with your child process (calibre). i,e, you're
running Calibre in the background and let your skill running
regardless whether calibre succeeded to run or not. So if you don't
bother about communicating with your child process, why do you want to
use the ipc functions ? I'm pretty much sure I'm missing something :-(

I would advice the following in your case (This is an example):
; Print your calibre command into a string : calibreCommand
sprintf(calibreCommand "/yourMgcInstallDir/bin/calibre -drc -hier -
whateverOptionOrCtrlFile %s/%s.gds &" dirName cellName)
system(calibreCommand)

Anyway, This a little example about using IPCs

;-----------------------------------------------------------------
; Get The user name from unix
cidUser = ipcBeginProcess("whoami")
ipcWait(cidUser)
ridUser=car(parseString(ipcReadProcess(cidUser) "\n"))

; Get The hostname from unix
cidHost = ipcBeginProcess("uname -n")
ipcWait(cidHost)
ridHost=car(parseString(ipcReadProcess(cidHost) "\n"))
;-----------------------------------------------------------------

I saw you are using csh() to run your Calibre and I guess it is for a
purpose. In the case you move to ipc, you have to know that 'ipc' is
not running commands under your default login shell even if the
commands are passed through it, ipcBeginProcess executes commands
using Bourne Shell (sh).

BTW : What does it mean "... but behavior of my skill program is not
as expected ! "

Hope this help you !

Interesting and Could be useful :
Interprocess Communication SKILL Functions Reference -->
$CDSHOME/doc/skipcref.pdf

Riad.