Function: make-finalizer

make-finalizer is a function defined in alloc.c.

Signature

(make-finalizer FUNCTION)

Documentation

Make a finalizer that will run FUNCTION.

FUNCTION will be called after garbage collection when the returned finalizer object becomes unreachable. If the finalizer object is reachable only through references from finalizer objects, it does not count as reachable for the purpose of deciding whether to run FUNCTION. FUNCTION will be run once per finalizer object.

View in manual

Source Code

// Defined in /usr/src/emacs/src/alloc.c
{
  CHECK_TYPE (FUNCTIONP (function), Qfunctionp, function);
  struct Lisp_Finalizer *finalizer
    = ALLOCATE_PSEUDOVECTOR (struct Lisp_Finalizer, function, PVEC_FINALIZER);
  finalizer->function = function;
  finalizer->prev = finalizer->next = NULL;
  finalizer_insert (&finalizers, finalizer);
  return make_lisp_ptr (finalizer, Lisp_Vectorlike);
}