Infinite loop protection

src/classes/dexie/dexie.ts

@@ -56,6 +56,7 @@ export interface DbReadyState {
   openCanceller: Promise<any> & { _stackHolder?: Error };
   autoSchema: boolean;
   vcFired?: boolean;
+  PR1398_maxLoop?: number;
 }
 
 export class Dexie implements IDexie {
@@ -120,7 +121,8 @@ export class Dexie implements IDexie {
       dbReadyPromise: null as Promise,
       cancelOpen: nop,
       openCanceller: null as Promise,
-      autoSchema: true
+      autoSchema: true,
+      PR1398_maxLoop: 3
     };
     state.dbReadyPromise = new Promise(resolve => {
       state.dbReadyResolve = resolve;

src/classes/dexie/transaction-helpers.ts

@@ -51,10 +51,11 @@ export function enterTransactionScope(
     } else {
       try {
         trans.create(); // Create the native transaction so that complete() or error() will trigger even if no operation is made upon it.
+        db._state.PR1398_maxLoop = 3;
       } catch (ex) {
-        if (ex.name === errnames.InvalidState && db.isOpen()) {
+        if (ex.name === errnames.InvalidState && db.isOpen() && --db._state.PR1398_maxLoop > 0) {
           console.warn('Dexie: Need to reopen db');
-          db.close();
+          db._close();
           return db.open().then(() => enterTransactionScope(
             db,
             mode,

src/functions/temp-transaction.ts

@@ -28,10 +28,13 @@ export function tempTransaction (
     return db._state.dbReadyPromise.then(() => tempTransaction(db, mode, storeNames, fn));
   } else {
     var trans = db._createTransaction(mode, storeNames, db._dbSchema);
-    try { trans.create(); } catch (ex) {
-      if (ex.name === errnames.InvalidState && db.isOpen()) {
+    try {
+      trans.create();
+      db._state.PR1398_maxLoop = 3;
+    } catch (ex) {
+      if (ex.name === errnames.InvalidState && db.isOpen() && --db._state.PR1398_maxLoop > 0) {
         console.warn('Dexie: Need to reopen db');
-        db.close();
+        db._close();
         return db.open().then(()=>tempTransaction(db, mode, storeNames, fn));
       }
       return rejection(ex);