using shared memory

clunix · 04-08-2006, 11:40 AM

I would like now can I use the concept of shared memory to communicat between perant and child
ex.
I want a program that allow to the child1 does z=1+1 and child2 does x=2*2 and then the result show by the perant not by any childern

If any body can help me because I want to learn how can I use sherd memory in this case.

best regards,,,,,

addy86 · 04-08-2006, 12:13 PM

Google: linux shared memory
You get 20 million results.

paulsm4 · 04-08-2006, 12:13 PM

Simple - the calls you want are "shmget()" (get shared memory segment), followed by "shmat()" (attach to shared memory segment).

Here's a great tutorial:
http://users.actcom.co.il/~choo/lupg...i-process.html

Here's another (somewhat simpler) tutorial:
http://kt.squeakydolphin.com/sysv_shared_mem.jsp

'Hope that helps .. PSM