getting memory from other program

coredump2005 · 02-23-2005, 04:23 AM

Hi all!

Is it possible to read from a other process memory? I want to use a stl::map in more than one program at the same time, i only need to read from the map. What are my options to get this work?

Thank you in advance!
Greetings Mario

Mara · 02-23-2005, 05:33 AM

You can only when the memory is shared. Start from reading manual page of shmget (there are pointers inside to other functions needed). If you have not used it before I'd recomend a read about system fynctions, however.

coredump2005 · 02-23-2005, 07:19 AM

Thanks for your reply. I know the shared memory functions but to implement them into a stl allocator is very difficult. I hoped there was an other solution to read the memroy of an other process...

Mara · 02-23-2005, 02:38 PM

Nope..You'd require something build in the STL. As far as I know such thing does not exist.

Matir · 02-23-2005, 02:49 PM

You *MIGHT* be able to do it if the reading process runs as root. But I think the Linux Virtual Memory management system would prevent that. (In fact, the address would not line up because the addresses are in a per-process virtual space). SHM is likely your only option. Alternatively, to move data around, UNIX sockets.