Tollef Fog Heen <tfh...@err.no> writes: > Assuming it's small enough, using a pipe (or possibly a FIFO) could > work. That's kernel memory and iirc it won't be swapped out. (I'm > happy to be corrected on this, I'm basing it on what I've heard before > and my recollection of it.)
There's a Kerberos ticket cache implementation (still a non-standard one, though) that uses this mechanism since it even works across processes if one is careful. It's a really interesting trick, although it has a few drawbacks. -- Russ Allbery (r...@debian.org) <http://www.eyrie.org/~eagle/>