Is there any Apache shutdown hook to be used for cleanup?

Question

I am currently developing a module for Apache 2/2.2 and need to perform some cleanup before the main Apache process terminates (not the child processes).

I have searched extensively without finding any guidelines on which hook to use. Can anyone help point me in the right direction?

Answer 1

I'm not sure what you are exactly trying to do, but I think that the apr_reslist_create and apr_pool_cleanup_register functions may help you. One of the parameters in the apr_reslist_create function is apr_reslist_destructor which you can use to pass destructor function. Also, I think you should take a look at the mod_dbd module source code since it is a pretty good example of how to create and cleanup external resources from the apache process.

Apr-Util apr_reslist_create

Apr apr_pool_cleanup_register