externalstring and to-be-closed

Marc Balmer <[email protected]>
Newsgroups gmane.comp.lang.lua.general
Message-ID <[email protected]>
Trying to better understand external strings…

Can external strings, pushed to a Lua state using lua_pushexternalstring(), somehow be marked as to-be-closed (<close> in Lua) so that  the allocf function passed to lua_pushexternalstring() gets called when the variable goes out of scope and not only at garbage collection time?

- Marc

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