save state in FilePersistence

src/Util/Binary/Decoder.mjs

@@ -117,12 +117,16 @@ export default class BinaryDecoder {
    */
   readVarString () {
     let len = this.readVarUint()
-    let bytes = new Array(len)
+    let encodedString = ''
+    //let bytes = new Array(len)
     for (let i = 0; i < len; i++) {
-      bytes[i] = this.uint8arr[this.pos++]
+      //bytes[i] = this.uint8arr[this.pos++]
+      // encodedString += String.fromCodePoint(this.uint8arr[this.pos++])
+      encodedString += String(this.uint8arr[this.pos++])
     }
-    let encodedString = bytes.map(b => String.fromCodePoint(b)).join('')
-    return decodeURIComponent(escape(encodedString))
+    //let encodedString = String.fromCodePoint.apply(null, bytes)
+    //return decodeURIComponent(escape(encodedString))
+    return encodedString
   }
 
   /**

src/Util/mutualExclude.mjs

@@ -1,4 +1,3 @@
-
 // TODO: rename mutex
 
 /**
@@ -19,7 +18,7 @@
  */
 export function createMutualExclude () {
   var token = true
-  return function mutualExclude (f) {
+  return function mutualExclude (f, g) {
     if (token) {
       token = false
       try {
@@ -28,6 +27,8 @@ export function createMutualExclude () {
         console.error(e)
       }
       token = true
+    } else if (g !== undefined) {
+      g()
     }
   }
 }