refactor: rename ThreadSafeState, use RefCell for mutable state (#3931)

* rename ThreadSafeState to State
* State stores InnerState wrapped in Rc and RefCell

1 files changed, 5 insertions, 6 deletions

diff --git a/cli/ops/random.rs b/cli/ops/random.rs
index 950e9c7f0..3c570090b 100644
--- a/cli/ops/random.rs
+++ b/cli/ops/random.rs
@@ -1,12 +1,12 @@
 // Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
 use super::dispatch_json::{JsonOp, Value};
 use crate::ops::json_op;
-use crate::state::ThreadSafeState;
+use crate::state::State;
 use deno_core::*;
 use rand::thread_rng;
 use rand::Rng;
 
-pub fn init(i: &mut Isolate, s: &ThreadSafeState) {
+pub fn init(i: &mut Isolate, s: &State) {
   i.register_op(
     "get_random_values",
     s.core_op(json_op(s.stateful_op(op_get_random_values))),
@@ -14,15 +14,14 @@ pub fn init(i: &mut Isolate, s: &ThreadSafeState) {
 }
 
 fn op_get_random_values(
-  state: &ThreadSafeState,
+  state: &State,
   _args: Value,
   zero_copy: Option<ZeroCopyBuf>,
 ) -> Result<JsonOp, ErrBox> {
   assert!(zero_copy.is_some());
 
-  if let Some(ref seeded_rng) = state.seeded_rng {
-    let mut rng = seeded_rng.lock().unwrap();
-    rng.fill(&mut zero_copy.unwrap()[..]);
+  if let Some(ref mut seeded_rng) = state.borrow_mut().seeded_rng {
+    seeded_rng.fill(&mut zero_copy.unwrap()[..]);
   } else {
     let mut rng = thread_rng();
     rng.fill(&mut zero_copy.unwrap()[..]);