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track storage write requests internally, as we never await their promise

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This commit is contained in:
Bruno Windels 2020-09-29 11:50:37 +02:00
parent 482b5f4d22
commit 37690cffe3
2 changed files with 40 additions and 28 deletions
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33
src/matrix/storage/idb/Store.js
View file

@ -106,8 +106,9 @@ class QueryTargetWrapper {
}
export class Store extends QueryTarget {
constructor(idbStore) {
constructor(idbStore, transaction) {
super(new QueryTargetWrapper(idbStore));
this._transaction = transaction;
}
get _idbStore() {
@ -118,33 +119,15 @@ export class Store extends QueryTarget {
return new QueryTarget(new QueryTargetWrapper(this._idbStore.index(indexName)));
}
async put(value) {
try {
return await reqAsPromise(this._idbStore.put(value));
} catch(err) {
const originalErr = err.cause;
throw new StorageError(`put on ${err.databaseName}.${err.storeName} failed`, originalErr, value);
}
put(value) {
this._transaction._addWriteRequest(this._idbStore.put(value));
}
async add(value) {
try {
// this will catch both the sync error already mapped
// in the QueryTargetWrapper above, and also the async request errors, which are still DOMException's
return await reqAsPromise(this._idbStore.add(value));
} catch(err) {
const originalErr = err.cause;
throw new StorageError(`add on ${err.databaseName}.${err.storeName} failed`, originalErr, value);
}
}
async delete(keyOrKeyRange) {
try {
return await reqAsPromise(this._idbStore.delete(keyOrKeyRange));
} catch(err) {
const originalErr = err.cause;
throw new StorageError(`delete on ${err.databaseName}.${err.storeName} failed`, originalErr, keyOrKeyRange);
add(value) {
this._transaction._addWriteRequest(this._idbStore.add(value));
}
delete(keyOrKeyRange) {
this._transaction._addWriteRequest(this._idbStore.delete(keyOrKeyRange));
}
}

35
src/matrix/storage/idb/Transaction.js
View file

@ -14,6 +14,7 @@ See the License for the specific language governing permissions and
limitations under the License.
*/
import {IDBRequestError} from "./error.js";
import {txnAsPromise} from "./utils.js";
import {StorageError} from "../common.js";
import {Store} from "./Store.js";
@ -38,6 +39,14 @@ export class Transaction {
this._txn = txn;
this._allowedStoreNames = allowedStoreNames;
this._stores = {};
this._writeRequests = null;
}
_addWriteRequest(request) {
if (!this._writeRequests) {
this._writeRequests = [];
}
this._writeRequests.push(request);
}
_idbStore(name) {
@ -45,7 +54,7 @@ export class Transaction {
// more specific error? this is a bug, so maybe not ...
throw new StorageError(`Invalid store for transaction: ${name}, only ${this._allowedStoreNames.join(", ")} are allowed.`);
}
return new Store(this._txn.objectStore(name));
return new Store(this._txn.objectStore(name), this);
}
_store(name, mapStore) {
@ -116,8 +125,28 @@ export class Transaction {
return this._store("accountData", idbStore => new AccountDataStore(idbStore));
}
complete() {
return txnAsPromise(this._txn);
async complete() {
// check the write requests if we haven't failed yet
if (this._writeRequests) {
for (const request of this._writeRequests) {
if (request.error) {
try {
this.abort();
} catch (err) {/* ignore abort error, although it would be useful to know if the other stuff got committed or not... */}
return Promise.reject(new IDBRequestError(request, "Write request failed"));
}
}
}
const result = await txnAsPromise(this._txn);
// check the write requests if we haven't failed yet
if (this._writeRequests) {
for (const request of this._writeRequests) {
if (request.readyState !== "done") {
return Promise.reject(new IDBRequestError(request, "Request is still pending after transaction finished"));
}
}
}
return result;
}
abort() {