On 1/17/07, Robin Lee Powell <[EMAIL PROTECTED]> wrote:
On Sun, Jan 14, 2007 at 09:53:00PM -0800, Robin Lee Powell wrote: > > The only way I see to get the exit value of something I call with > (process...) is to use (process-wait), but as I mentioned in another > mail, this errors out my entire program if the process is already > finished, so I can't see any way to do all of the following: >
If you start a subprocess with `process', the waitpid(2) is done by closing the input and output port returned. If you want to get at the exit-status, you should try to start a process via more primitive functions, like `process-fork'. There a `process-wait' gives you all necessary information (and the error can be caught using `handle-exceptions'). To get at stdin/out, one can use the usual fork/dup/exec dance to obtain file-descriptors (albeit in Scheme using the functionality in the posix unit). cheers, felix _______________________________________________ Chicken-users mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/chicken-users
