porting from mac to linux/windows and looking for a cross platform XPC equivalent

Question

I'm using XPC and want to port to linux/windows. Looking for an alternative which can perform similar functionality.

is there something like this?

Answer 1

Have a look at gRPC and probably gRPC-Swift. The Swift implementation is in alpha status, though. gRPC and Objective C cannot spawn a server, it can only be used as client. The swift implementation can. C++ can, too.