before dangerous ops

Signed-off-by: T-Hax <>

@tornado/sdk-utils/.env.example

@@ -1,13 +0,0 @@
-# RPC URLs
-ETH_MAINNET_TEST_RPC=
-
-# debug (debug events are logged to console)
-DEBUG=
-
-# use tor (torify tests)
-TORIFY=
-# tor port (regular = 9050, browser = 9150)
-TOR_PORT=
-
-# relayer DOMAIN (the example.xyz in https://example.xyz) for testing
-TEST_RELAYER_DOMAIN=

@tornado/sdk-utils/docs/.nojekyll

@@ -0,0 +1 @@
+TypeDoc added this file to prevent GitHub Pages from using Jekyll. You can turn off this behavior by setting the `githubPages` option to false.

@tornado/sdk-utils/package.json

@@ -39,12 +39,13 @@
     "fs-extra": "^11.1.0",
     "mocha": "^10.2.0",
     "prettier": "^2.3.0",
-    "rimraf": "^4.4.0",
+    "rimraf": "^5.0.0",
     "source-map-support": "^0.5.19",
     "ts-essentials": "^9.3.1",
     "ts-node": "^10.9.1",
     "tsc-alias": "^1.2.11",
     "tsconfig-paths": "^4.1.2",
+    "typedoc": "^0.24.6",
     "typescript": "^5.0.4"
   },
   "scripts": {
@@ -55,7 +56,7 @@
     "postversion": "git push --follow-tags && npm publish",
     "lint": "eslint --ext ts,js --fix src",
     "build-live": "tsc -w && tsc-alias -w",
-    "clean": "rm -rf --interactive=never cache/*",
+    "clean": "rm -rf --interactive=never docs/*",
     "format": "prettier src/*.ts -w"
   },
   "files": [

@tornado/sdk-utils/src/index.ts

@@ -176,6 +176,31 @@ export namespace AsyncUtils {
   export function timeout(msTimeout: number): Promise<any> {
     return new Promise((resolve) => setTimeout(resolve, msTimeout))
   }
+
+  export class SimpleMutex {
+    private _mutexes: Map<string, Promise<any>>
+
+    constructor() {
+      this._mutexes = new Map<string, Promise<any>>()
+    }
+
+    async acquire(parentCallName: string): Promise<Function> {
+      let release: Function = () => null
+
+      const prevMutex = this._mutexes.get(parentCallName)
+
+      this._mutexes.set(
+        parentCallName,
+        new Promise((resolve) => {
+          release = resolve
+        })
+      )
+
+      if (prevMutex) await prevMutex
+
+      return release
+    }
+  }
 }
 
 export namespace NumberUtils {