I made a custom module, in which I dynamically add regions. The thing is, I want to make just the region part of the cache to refresh after. So drupal_flush_all_caches(); isn't the solution, since this takes too long, as well as it sometimes crashes the site.
Could anyone tell me which function I need to specifically clear the region/blocks cache? I tried all logical functions from the drupal_flush_all_caches(); function. I also couldn't find the right call from cache_clear_all();.
Any help would be appreciated.