allow updating block cache capacity from C (facebook#1149)

bluesalt · Jun 3, 2016 · 02ec815 · 02ec815
1 parent 630b732
commit 02ec815
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Showing 2 changed files with 6 additions and 0 deletions.
diff --git a/db/c.cc b/db/c.cc
@@ -2173,6 +2173,10 @@ void rocksdb_cache_destroy(rocksdb_cache_t* cache) {
   delete cache;
 }
 
+void rocksdb_cache_set_capacity(rocksdb_cache_t* cache, size_t capacity) {
+  cache->rep->SetCapacity(capacity);
+}
+
 rocksdb_env_t* rocksdb_create_default_env() {
   rocksdb_env_t* result = new rocksdb_env_t;
   result->rep = Env::Default();

diff --git a/include/rocksdb/c.h b/include/rocksdb/c.h
@@ -847,6 +847,8 @@ extern ROCKSDB_LIBRARY_API void rocksdb_flushoptions_set_wait(
 extern ROCKSDB_LIBRARY_API rocksdb_cache_t* rocksdb_cache_create_lru(
     size_t capacity);
 extern ROCKSDB_LIBRARY_API void rocksdb_cache_destroy(rocksdb_cache_t* cache);
+extern ROCKSDB_LIBRARY_API void rocksdb_cache_set_capacity(
+    rocksdb_cache_t* cache, size_t capacity);
 
 /* Env */