File descriptors are nonnegative int so I can imagine unhappiness with the highest order bit set (if (open() < 0) abort();). Second-highest order bit might be okay.

I've got an embedded Linux system (running a fairly recent 2.6.x Kernel) that we are developing some applications for. I'm trying to figure out a good way to get data between C applications running on ...

Anyone who has been paying attention to Linux kernel development in recent years would be aware that IPC — interprocess communication — is not a solved problem. There are certainly many partial ...