how to do large-ish IPC transfers

[Alexander Amelkin]

12.09.2019 16:24, Brad Bishop wrote:
>
>> What is a 'file descriptor' you're referring to here? The Linux file descriptor
>> (the integer you get from open()) is process-specific and doesn't keep its
>> meaning in another process' context.
>
> On Linux you can pass file descriptors (the ones returned by open) over unix
> sockets.  The implementation of the ‘h’ DBus type relies on that.

Oh, great! Didn't know about that. Thanks.

Anyway, I think I'd just use message queues or sockets (directly). What's the
profit of using a file whose descriptor is sent over a socket instead of just
using the socket for communication?

With best regards,
Alexander Amelkin


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