wip

src/Utils/make-mutex.ts

@@ -1,8 +1,20 @@
+import logger from './logger'
+
+const MUTEX_TIMEOUT_MS = 60_000
+
 export const makeMutex = () => {
 	let task = Promise.resolve() as Promise<any>
+
+	let taskTimeout: NodeJS.Timeout | undefined
+
 	return {
 		mutex<T>(code: () => Promise<T> | T): Promise<T> {
 			task = (async() => {
+				const stack = new Error('mutex start').stack
+				let waitOver = false
+				taskTimeout = setTimeout(() => {
+					logger.warn({ stack, waitOver }, 'possible mutex deadlock')
+				}, MUTEX_TIMEOUT_MS)
 				// wait for the previous task to complete
 				// if there is an error, we swallow so as to not block the queue
 				try {