diff options
Diffstat (limited to 'src/or/rendcache.c')
| -rw-r--r-- | src/or/rendcache.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/or/rendcache.c b/src/or/rendcache.c index 9be9e24941..9a33046fb6 100644 --- a/src/or/rendcache.c +++ b/src/or/rendcache.c @@ -225,6 +225,35 @@ rend_cache_free_all(void) rend_cache_total_allocation = 0; } +/** Remove all entries that re REND_CACHE_FAILURE_MAX_AGE old. This is + * called every second. + * + * We have to clean these regurlarly else if for whatever reasons an hidden + * service goes offline and a client tries to connect to it during that + * time, a failure entry is created and the client will be unable to connect + * for a while even though the service has return online. */ +void +rend_cache_failure_clean(time_t now) +{ + time_t cutoff = now - REND_CACHE_FAILURE_MAX_AGE; + STRMAP_FOREACH_MODIFY(rend_cache_failure, key, + rend_cache_failure_t *, ent) { + /* Free and remove every intro failure object that match the cutoff. */ + DIGESTMAP_FOREACH_MODIFY(ent->intro_failures, ip_key, + rend_cache_failure_intro_t *, ip_ent) { + if (ip_ent->created_ts < cutoff) { + rend_cache_failure_intro_entry_free(ip_ent); + MAP_DEL_CURRENT(ip_key); + } + } DIGESTMAP_FOREACH_END; + /* If the entry is now empty of intro point failures, remove it. */ + if (digestmap_isempty(ent->intro_failures)) { + rend_cache_failure_entry_free(ent); + MAP_DEL_CURRENT(key); + } + } STRMAP_FOREACH_END; +} + /** Removes all old entries from the service descriptor cache. */ void |