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feature(mobile): Hardening synchronization mechanism + Pull to refresh (#2085)
* 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>
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@ -3,12 +3,17 @@ import 'dart:async';
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/// Async mutex to guarantee actions are performed sequentially and do not interleave
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class AsyncMutex {
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Future _running = Future.value(null);
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int _enqueued = 0;
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get enqueued => _enqueued;
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/// Execute [operation] exclusively, after any currently running operations.
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/// Returns a [Future] with the result of the [operation].
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Future<T> run<T>(Future<T> Function() operation) {
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final completer = Completer<T>();
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_enqueued++;
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_running.whenComplete(() {
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_enqueued--;
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completer.complete(Future<T>.sync(operation));
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});
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return _running = completer.future;
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