[launchd-dev] The MachService key

[Jerry Krinock]

In trying to understand how a process works, I found a launchd plist with a MachService key.

From launchd.plist(5), I learn that that this is to "specify Mach services to be registered with the Mach bootstrap sub-system".

I know a little about the Mach bootstrap sub-system, but I can't find much information about Mach services.

Does anyone know a book or other resource where I could learn about Mach services?

Thanks,

Jerry Krinock