注册锁

src/utils/mutexlock.js

@@ -0,0 +1,21 @@
+class MLock {
+    constructor (props) {
+        Object.defineProperty(this, 'map', {
+            value: new Map(),
+            writable: false
+        });
+    }
+    acquire (key) {
+        if (this.map.has(key)) {
+            return false;
+        }
+        this.map.set(key, true);
+        return true;
+    }
+    unlock (key) {
+        this.map.delete(key);
+        return true;
+    }
+}
+
+module.exports = MLock;