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write sync token first

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in case we get a TransactionInactiveError,
we have at least written the sync token
and won't repeat the same sync request
This commit is contained in:
Bruno Windels 2020-10-01 14:36:22 +02:00
parent 1117c77d05
commit 300529b7c5
2 changed files with 7 additions and 6 deletions
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11
src/matrix/Session.js
View file

@ -341,17 +341,18 @@ export class Session {
deviceMessageDecryptionPending: false
};
const syncToken = syncResponse.next_batch;
const deviceOneTimeKeysCount = syncResponse.device_one_time_keys_count;
if (this._e2eeAccount && deviceOneTimeKeysCount) {
changes.e2eeAccountChanges = this._e2eeAccount.writeSync(deviceOneTimeKeysCount, txn);
}
if (syncToken !== this.syncToken) {
const syncInfo = {token: syncToken, filterId: syncFilterId};
// don't modify `this` because transaction might still fail
txn.session.set("sync", syncInfo);
changes.syncInfo = syncInfo;
}
const deviceOneTimeKeysCount = syncResponse.device_one_time_keys_count;
if (this._e2eeAccount && deviceOneTimeKeysCount) {
changes.e2eeAccountChanges = this._e2eeAccount.writeSync(deviceOneTimeKeysCount, txn);
}
if (this._deviceTracker) {
const deviceLists = syncResponse.device_lists;
if (deviceLists) {

2
src/matrix/Sync.js
View file

@ -186,12 +186,12 @@ export class Sync {
let sessionChanges;
const syncTxn = this._openSyncTxn();
try {
sessionChanges = await this._session.writeSync(response, syncFilterId, syncTxn);
await Promise.all(roomStates.map(async rs => {
console.log(` * applying sync response to room ${rs.room.id} ...`);
rs.changes = await rs.room.writeSync(
rs.roomResponse, isInitialSync, rs.preparation, syncTxn);
}));
sessionChanges = await this._session.writeSync(response, syncFilterId, syncTxn);
} catch(err) {
// avoid corrupting state by only
// storing the sync up till the point