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Re: dynamic reload of dynamic module not dynamic?


From: Emanuel Berg
Subject: Re: dynamic reload of dynamic module not dynamic?
Date: Sun, 17 Apr 2022 22:12:55 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux)

Philipp Stephani wrote:

>> It seems recompiling the C for an Emacs dynamic module and
>> then loading the new SO file from the same Emacs instance
>> that loaded the old doesn't get you the new stuff?
>
> Yeah, we never call dlclose on the returned shared object
> handle, so reloading a module will only increment the
> handle's reference count. It might make sense to support
> reloading in some way (by having unload-feature eventually
> call dlclose), but it's not trivial: we need to be careful
> to invalidate all references to affected module functions
> before calling dlclose.

Okay, where are they stored then so one can apply invalidate
to all members and then call dlclose and `load' again?

-- 
underground experts united
https://dataswamp.org/~incal




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