geoip: Hook the client history cache into the OOM handler

If the cache is using 20% of our maximum allowed memory, clean 10% of it. Same
behavior as the HS descriptor cache.

Closes #25122

Signed-off-by: David Goulet <dgoulet@torproject.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/or/geoip.h b/src/or/geoip.h
index 070296dd07..42d0c1cfd9 100644
--- a/src/or/geoip.h
+++ b/src/or/geoip.h
@@ -33,6 +33,8 @@ void geoip_note_client_seen(geoip_client_action_t action,
                             const tor_addr_t *addr, const char *transport_name,
                             time_t now);
 void geoip_remove_old_clients(time_t cutoff);
+size_t geoip_client_cache_total_allocation(void);
+size_t geoip_client_cache_handle_oom(time_t now, size_t min_remove_bytes);
 
 void geoip_note_ns_response(geoip_ns_response_t response);
 char *geoip_get_transport_history(void);