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feature(mobile): Hardening synchronization mechanism + Pull to refresh (#2085)

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* fix(mobile): allow syncing duplicate local IDs

* enable to run isar unit tests on CI

* serialize sync operations, add pull to refresh on timeline

---------

Co-authored-by: Fynn Petersen-Frey <zoodyy@users.noreply.github.com>
This commit is contained in:
Fynn Petersen-Frey 2023-03-27 04:35:52 +02:00 • committed by GitHub
parent 1a94530935
commit cae37657e9
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21 changed files with 653 additions and 249 deletions
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5
mobile/lib/utils/async_mutex.dart
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@ -3,12 +3,17 @@ import 'dart:async';
/// Async mutex to guarantee actions are performed sequentially and do not interleave
class AsyncMutex {
Future _running = Future.value(null);
int _enqueued = 0;
get enqueued => _enqueued;
/// Execute [operation] exclusively, after any currently running operations.
/// Returns a [Future] with the result of the [operation].
Future<T> run<T>(Future<T> Function() operation) {
final completer = Completer<T>();
_enqueued++;
_running.whenComplete(() {
_enqueued--;
completer.complete(Future<T>.sync(operation));
});
return _running = completer.future;