Sorry needs to run on Mac or Unix as well. If I were doing it on Win I'd find a way of using ActiveX, because I'm familiar with that. But I'm new to Mac programming -- at least post-1992 Macs.
Interestingly Xcode, the Mac development system, has a getting-started tutorial that emphasises sockets. They are pushing it as the method of choice for inter-process communication. On Sat, Apr 30, 2011 at 2:53 AM, bill lam <[email protected]> wrote: > I guess this is os specific. You may try CreateEvent window api to create a > mutex, and poll for it using WaitForSingleObject api. Of course the client > also needs to co-operate. > > Сбт, 30 Апр 2011, Ian Clark писал(а): >> Suppose I have two J tasks A and B sharing a mapped file F. How can B >> best get to know that A has just changed F? >> >> AFAICS, B needs to execute a duty-cycle inspecting the directory >> timestamp of F using 1!:0 (which may delay for up to a second), or >> alternatively watch for a checksum to change on F's contents (if it's >> large). >> >> Before I do, is there some JAL facility I've overlooked? Ideally, the >> very act of A changing F should send a message to B -- a system event, >> say, that can run a callback. >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm > > -- > regards, > ==================================================== > GPG key 1024D/4434BAB3 2008-08-24 > gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3 > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
