enable statistics

src/ffi.rs

@@ -206,6 +206,8 @@ extern "C" {
                                                         v: c_int);
     pub fn rocksdb_options_set_report_bg_io_stats(options: DBOptions, v: c_int);
     pub fn rocksdb_options_set_wal_recovery_mode(options: DBOptions, mode: DBRecoveryMode);
+    pub fn rocksdb_options_enable_statistics(options: DBOptions);
+    pub fn rocksdb_options_set_stats_dump_period_sec(options: DBOptions, v: usize);
     pub fn rocksdb_filterpolicy_create_bloom_full(bits_per_key: c_int)
                                                 -> DBFilterPolicy;
     pub fn rocksdb_filterpolicy_create_bloom(bits_per_key: c_int)

src/rocksdb_options.rs

@@ -372,6 +372,19 @@ impl Options {
             rocksdb_ffi::rocksdb_options_set_wal_recovery_mode(self.inner, mode);
         }
     }
+
+    pub fn enable_statistics(&mut self) {
+        unsafe {
+            rocksdb_ffi::rocksdb_options_enable_statistics(self.inner);
+        }
+    }
+
+    pub fn set_stats_dump_period_sec(&mut self, period: usize) {
+        unsafe {
+            rocksdb_ffi::rocksdb_options_set_stats_dump_period_sec(self.inner,
+                                                      period);
+        }
+    }
 }
 
 impl Default for Options {
@@ -429,4 +442,11 @@ mod tests {
         let size = 20 * 1024 * 1024;
         opts.set_max_manifest_file_size(size)
     }
+
+    #[test]
+    fn test_enable_statistics() {
+        let mut opts = Options::default();
+        opts.enable_statistics();
+        opts.set_stats_dump_period_sec(60);
+    }
 }