[Cffi-devel] Callbacks & Lambdas

[Joerg-Cyril.Hoehle at t-systems.com]

Luís Oliveira  wrote:

<http://www.clisp.org/impnotes/dffi.html#dffi-callback-mem> suggests that the trampolines for anonymous foreign callbacks are simply leaked. Is that an accurate interpretation?

No, reread-the paragraph starting with:
"You can use FFI:FOREIGN-FREE to free the trampoline associated with a FFI:FOREIGN-FUNCTION object, ..."

The paragraph explains that it's not trivial to grab the exact object corresponding to the trampoline. If you don't grab it, it will leak.

Regards,
 Jörg Höhle