diff options
Diffstat (limited to 'src/or/conscache.c')
| -rw-r--r-- | src/or/conscache.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/or/conscache.c b/src/or/conscache.c index c30d1998c6..350a05b0f2 100644 --- a/src/or/conscache.c +++ b/src/or/conscache.c @@ -54,6 +54,11 @@ struct consensus_cache_t { storage_dir_t *dir; /** List of all the entries in the directory. */ smartlist_t *entries; + + /** The maximum number of entries that we'd like to allow in this cache. + * This is the same as the storagedir limit when MUST_UNMAP_TO_UNLINK is + * not defined. */ + unsigned max_entries; }; static void consensus_cache_clear(consensus_cache_t *cache); @@ -71,6 +76,10 @@ consensus_cache_open(const char *subdir, int max_entries) { consensus_cache_t *cache = tor_malloc_zero(sizeof(consensus_cache_t)); char *directory = get_datadir_fname(subdir); + cache->max_entries = max_entries; +#ifdef MUST_UNMAP_TO_UNLINK + max_entries = 1000000; +#endif cache->dir = storage_dir_new(directory, max_entries); tor_free(directory); if (!cache->dir) { @@ -82,6 +91,19 @@ consensus_cache_open(const char *subdir, int max_entries) return cache; } +/** Return true if it's okay to put more entries in this cache than + * its official file limit. */ +int +consensus_cache_may_overallocate(consensus_cache_t *cache) +{ + (void) cache; +#ifdef MUST_UNMAP_TO_UNLINK + return 1; +#else + return 0; +#endif +} + /** * Tell the sandbox (if any) configured by <b>cfg</b> to allow the * operations that <b>cache</b> will need. @@ -90,6 +112,11 @@ int consensus_cache_register_with_sandbox(consensus_cache_t *cache, struct sandbox_cfg_elem **cfg) { +#ifdef MUST_UNMAP_TO_UNLINK + /* Our sandbox doesn't support huge limits like we use here. + */ + tor_assert_nonfatal_unreached(); +#endif return storage_dir_register_with_sandbox(cache->dir, cfg); } |