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Comment by chii

25 days ago

> extracting it to a tmp file

i wonder if there's a way to do this entirely in memory? Because some deployment scenarios might not have disk space at all.

Technically memfd_create will let you create a file descriptor backed by a memory region. However in Linux I don't believe there's a way to dlopen that. (Maybe dlopen /dev/fd/... might work?) In FreeBSD there's a fdlopen library function.

Edit: glibc proposal which was never accepted: https://sourceware.org/bugzilla/show_bug.cgi?id=11767

not with java - it needs a path. Of course if you have a ram disk (e.g. /tmp) it'd do the job.