xpc api

Yes. In 10.14 and later you can transport arbitrary low-level XPC types across

NSXPCConnection

using

-setXPCType:forSelector:argumentIndex:ofReply:

. However, it’s possible to do this on older systems as well: The trick is to use the Posix shared memory API (see the

shm_open

man page), which works in terms of file descriptors. You can then wrap that file descriptor in an

NSFileHandle

, which is XPC transportable.

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