Reattaching to same address space on process restart

atul77 · 02-17-2011, 04:24 PM

Hello Linux Gurus,
I have a question.

Suppose a process creates multiple shared
mem segments as part of it job.
Now is it always possible that on restart, that process can reattach to those previously created shared mem segments to the same virtual address spaces (returned on first time creation) ?

My intention is use pointers over shared memory.So on restart I want those pointers absolute value to remain valid.

Thanks a lot in advance.

kbp · 02-17-2011, 06:00 PM

I think you'd have to have the process spawn a child to perform the actual work, the parent would allocate the shared segments and deallocate them on exit - once you've lost a pointer there isn't any way to regain access to the memory afaik

cheers