update mod

vendor/github.com/siddontang/ledisdb/store/rocksdb/env.go

@@ -0,0 +1,27 @@
+// +build rocksdb
+
+package rocksdb
+
+// #cgo LDFLAGS: -lrocksdb
+// #include "rocksdb/c.h"
+import "C"
+
+type Env struct {
+	Env *C.rocksdb_env_t
+}
+
+func NewDefaultEnv() *Env {
+	return &Env{C.rocksdb_create_default_env()}
+}
+
+func (env *Env) SetHighPriorityBackgroundThreads(n int) {
+	C.rocksdb_env_set_high_priority_background_threads(env.Env, C.int(n))
+}
+
+func (env *Env) SetBackgroundThreads(n int) {
+	C.rocksdb_env_set_background_threads(env.Env, C.int(n))
+}
+
+func (env *Env) Close() {
+	C.rocksdb_env_destroy(env.Env)
+}